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FRATELLI GUZZINI SELECTS SUSTAINABLE STYRENICS SOLUTION FROM INEOS STYROLUTION BASED ON BIOMASS BALANCED STYRENE FROM BASF

FRATELLI GUZZINI SELECTS SUSTAINABLE STYRENICS SOLUTION FROM INEOS STYROLUTION BASED ON BIOMASS BALANCED STYRENE FROM BASF

  • New Guzzini drinkware made from INEOS Styrolution’s sustainable ECO materials
  • BASF to supply biomass balanced styrene as plastic feedstock
  • Completely certified production process

Fratelli Guzzini has today anounced it has selected a range of INEOS Styrolution’s sustainable NAS® ECO materials as materials of choice for its new range of drinkware solutions. NAS ECO is a styrene methyl methacrylate (SMMA) material, which is the result of a cooperation between INEOS Styrolution and BASF. It is built on BASF’s production of styrene monomer derived from renewable feedstock based on mass balance based processes. INEOS Styrolution uses the material as feedstock in its production of new sustainable styrenics solutions.

First customer in tableware and household appliances to benefit from the new solutions is Fratelli Guzzini, a world leading company in this sector.

Domenico Guzzini, President at Fratelli Guzzini, comments: “We are pleased to respond to the growing demand from our customers to deliver solutions with a significantly reduced impact on the environment.”

NAS ECO with significantly reduced CO2 footprint

BASF’s biomass balance (BMB) based styrene is used by INEOS Styrolution in the production of bio-attributed styrenics specialties, mainly transparent styrenics materials such as the company’s NAS® family of SMMA (styrene methyl methacrylate) products and the Luran® family of SAN (styrene acrylonitrile copolymer) products.

The end-to-end mass balanced based production of the new solution portfolio is certified by ISCC during BASF’s and INEOS Styrolution’s processes.

Mark Beitz, Head of Sustainability, R&D and Regulatory, at INEOS Styrolution comments: “The joint approach with BASF allows us to offer our customers solutions with a significantly reduced CO2 footprint that help them to deliver sustainable solutions to end users.”

(Bio)mass balanced styrene

To produce BMB styrene, BASF replaces fossil resources like naphtha or natural gas by renewable feedstocks derived from organic waste or vegetable oils. It is one way to produce styrene via a mass balance approach. Mass balance is a chain of custody model that keeps track of the total amount of (e.g., circular or other alternative) feedstock throughout the production process and ensures a proper allocation to the finished goods.

Raw material and plastic producers like INEOS Styrolution and BASF can thus offer products with a better environmental profile but the same properties as those manufactured from fossil feedstock. The allocation process via the mass balance approach as well as the products are certified by independent auditors. Read more about BASF’s Biomass Balance Biomass balance approach (basf.com). “Using biomass-balanced based (BMB) feedstocks instead of virgin fossil resources contributes directly to an improved CO2 footprint of subsequent products,” says Klaus Ries, Vice President for BASF’s Styrenics Business Europe. “Next to raw materials based on chemically recycled feedstock, BMB is the second strong pillar for us when it comes to using alternative feedstock and contributing to the replacement of new fossil resources. It is of utmost importance for us to cooperate along the whole styrenics value chain.”

Direct sound printing is a potential game-changer in 3D printing

Direct sound printing is a potential game-changer in 3D printing

Most 3D printing methods currently in use rely either on photo (light)- or thermo (heat)-activated reactions to achieve precise manipulation of polymers. The development of a new platform technology called direct sound printing (DSP), which uses soundwaves to produce new objects, may offer a third option.

It shows how focused ultrasound waves can be used to create sonochemical reactions in minuscule cavitation regions — essentially tiny bubbles. Extremes of temperature and pressure lasting trillionths of a second can generate pre-designed complex geometries that cannot be made with existing techniques.

“Ultrasonic frequencies are already being used in destructive procedures like laser ablation of tissues and tumours. We wanted to use them to create something,” says Muthukumaran Packirisamy, a professor and Concordia Research Chair in the Department of Mechanical, Industrial and Aerospace Engineering at the Gina Cody School of Engineering and Computer Science. He is the paper’s corresponding author.

Mohsen Habibi, a research associate at Concordia’s Optical-Bio Microsystems Lab, is the paper’s lead author. His lab colleague and PhD student Shervin Foroughi and former master’s student Vahid Karamzadeh are co-authors.

As the researchers explain, DSP relies on chemical reactions created by fluctuating pressure inside tiny bubbles suspended in a liquid polymer solution.

“We found that if we use a certain type of ultrasound with a certain frequency and power, we can create very local, very focused chemically reactive regions,” Habibi says. “Basically, the bubbles can be used as reactors to drive chemical reactions to transform liquid resin into solids or semi-solids.”

The reactions caused by ultrasound-wave-directed oscillation inside the micro-sized bubbles are intense, though they only last picoseconds. The temperature inside the cavity shoots up to around 15,000 Kelvin and pressure exceeds 1,000 bar (the Earth’s surface pressure at sea level is around one bar). The reaction time is so brief the surrounding material is not affected.

The researchers experimented on a polymer used in additive manufacturing called polydimethylsiloxane (PDMS). They used a transducer to generate an ultrasonic field that passes through the build material’s shell and solidifies the targeted liquid resin and deposits it onto a platform or another previously solidified object. The transducer moves along a predetermined path, eventually creating the desired product pixel by pixel. The microstructure’s parameters can be manipulated by adjusting the duration of the ultrasound wave’s frequency and the viscosity of the material being used.

The authors believe that DSP’s versatility will benefit industries that rely on highly specific and delicate equipment. The polymer PDMS, for instance, is widely used in the microfluidics industry, where manufacturers require controlled environments (cleanrooms) and sophisticated lithographic technique to create medical devices and biosensors.

Aerospace engineering and repair can also benefit from DSP, as ultrasound waves penetrate opaque surfaces like metallic shells. This can allow maintenance crews to service parts located deep within an aircraft’s fuselage that would be inaccessible to printing techniques reliant on photoactivated reactions. DSP could even have medical applications for remote in-body printing for humans and other animals.

“We proved that we can print multiple materials, including polymers and ceramics,” Packirisamy says. “We are going to try polymer-metal composites next, and eventually we want to get to printing metal using this method.”

 

https://www.concordia.ca/

Neste teams up with Circularise to increase visibility along circular polymers and chemicals value chains

Neste teams up with Circularise to increase visibility along circular polymers and chemicals value chains

Neste and Netherlands-based startup Circularise have announced a partnership to bring Circularise’s traceability software into circular polymers and chemicals supply chains. The companies are collaborating in establishing digital solutions to trace renewable and recycled material flows, providing increased transparency along the value chain.

The companies will use Circularise’s blockchain-based supply chain traceability software, which creates a digital twin for the physical material. The twin stores information on the used materials throughout the value chain, enabling all value chain parties to keep track of the material. This allows them to verify where materials come from and how and where they were processed. The digital twin can also provide information on sustainability data such as the carbon footprint of the materials or products made from them.

Data-based supply chain visibility can strengthen trust in sustainable solutions

Solutions to increase visibility into supply chains become particularly valuable in the polymers and chemicals industry as materials undergo several processing steps and often get blended and co-processed with other materials. Especially in the ramp-up phase of more sustainable and circular value chains, renewable or recycled materials may be processed together with fossil materials – making it difficult to verifiably link end products with a much lower carbon footprint and the renewable or recycled materials they were produced with. As long as there is a mix of raw materials, a large share of renewable or recycled products will rely on a mass balancing allocation method as a way to link the end products to their raw materials.

With a digital supply chain tracking system, Neste and Circularise intend to enable value chain players to still make verifiable claims about such products. At the same time, it will allow parties along the value chain to better understand their supply chains, leading to improved transparency when it comes to life cycle emissions of products or other sustainability factors such as biodiversity and human rights.

“It’s usually very easy to claim sustainability, but very often, it’s not easy at all to back these claims,” says Isabella Tonaco, Vice President Strategy Execution & Marketing at Neste Renewable Polymers and Chemicals. “Yet, trust and credibility are crucial factors when it comes to sustainability. Being able to track and trace all the materials going into a product provides a solid basis for gaining that trust and credibility. We are looking forward to working with Circularise to provide the polymers and chemicals industry with a traceability solution to bring the necessary transparency into the value chains.”

While the purpose of the collaboration is increasing visibility and trust, Circularise also puts priority on confidentiality. Using a public blockchain-based infrastructure and Circularise’s proprietary Smart Questioning technology allows combining these two targets into one solution, enabling the sharing of trustworthy data and information between parties along the value chain without compromising on intellectual property or privacy.

“We want to really break the communication barriers that limit supply chain traceability,” said Mesbah Sabur, the founder of Circularise. “And we’ve been working with suppliers that truly want to create circular operations, that want to cooperate with their clients and regulators, that want to share insights into their products, but at the same time don’t want to risk their sensitive data. Neste is one of the frontrunners in this space and we are excited to work with them to make supply chains more transparent and the world more circular.”

 

https://www.neste.com/

Alpek Concludes Acquisition of Octal

ALPEK CONCLUDES ACQUISITION OF OCTAL

Alpek, S.A.B. de C.V. announced that it has received all necessary approvals from the regulatory authorities and has finalized its acquisition of OCTAL Holding SAOC (“OCTAL”).

Pursuant to the purchase agreement, Alpek acquired 100% of the shares of OCTAL for U.S. $620 million on a debt-free basis. Financing was secured through a mix of free cash flow generated from existing businesses and dedicated bank loans.

Alpek will assume control of OCTAL’s operations starting on June 1, 2022. The Company expects an accretive EBITDA effect of approximately U.S. $120 million from these assets throughout the remainder of 2022, largely based on the better-than-expected Polyester market conditions prevalent in recent months. This would increase the Company’s Comparable EBITDA Guidance to U.S. $1,370 million and Reported EBITDA Guidance to U.S. $1,485 million.

“We are pleased to have concluded this acquisition ahead of the expected timeline,” stated José de Jesús Valdez, Alpek’s CEO. “We are excited to welcome OCTAL’s management team and employees into our family, leveraging their long-standing relationships with customers, their diverse backgrounds, and technical proficiency to drive the Company’s long-term growth.”

 

European Plastics Industry Braces For Increased Instability, Higher Prices, And Lower Growth

K 2022 – Trend Report Europe

European Plastics Industry Braces For Increased Instability, Higher Prices, And Lower Growth

The European plastics industry is tackling challenges on multiple fronts. In packaging, by far its biggest market, it has become a victim of its own success, particularly as the ideal material for single-use applications and people on the move. In building and construction, some infrastructure projects may go on hold as governments divert some funds away from infrastructure projects to defence, although business is being boosted as consumers get help to improve energy efficiency in their houses. In automotive, component suppliers are suffering because car makers have been cutting production – not as a reaction to reduced demand, but because they cannot obtain the chips they need for their electronics.

Since early 2019, COVID-19 has had major effects on production, occasionally positive but mostly negative. And now, just as Europe and the rest of the world was recovering from the devastating two years of the pandemic, we have the tragedy of the Ukraine conflict.

Discussing the situation in late March, Martin Wiesweg, Executive Director Polymers EMEA at consultant IHS Markit, said that, quite apart from causing a humanitarian disaster, the crisis is weighing heavy on the plastics business, in terms of cost inflation, the worsening of supply chain bottlenecks, including energy supply, while also raising the spectre of demand shock amid the fear of global stagflation.

Inflation across the EU hit an all-time high of 7.5% in March. S&P Global Economics said on March 30 that it expects eurozone growth to be 3.3% this year, compared to 4.4% in a previous forecast, and inflation to reach 5% this year and stay above 2% in 2023.

“In the past, high crude oil prices weighed negatively on European plastic demand (see chart) ,” says Wiesweg. Prices soaring further could see consumer disposable income slumping, impacting retail sales. Sectors driven by consumer discretionary income like white goods, consumer products, and automotive would fare poorly as buyers try to conserve cash. “In the short to medium term, Europe could potentially see a demand contraction across polymers.”

Plastics processing is on course for the circular economy

Germany remains the powerhouse of the European plastics industry, with its multiple strengths in materials, equipment, and processing capability. But some sectors are hurting all the same. According to German plastics processing industry umbrella organisation GKV, industry sales increased by 12.6% to €69.4 billion in 2021, but member companies remain under a lot of pressure to produce good results. It cites “exorbitant cost explosions” for raw materials and energy, as well as the many delivery delays and resulting order suspensions, particularly in automotive supplies.

The automotive sector has provided a unique set of problems. Several European car makers have temporarily shut down production in recent months, with important negative effects in the supply chain, including the permanent closure at some processors. Passenger car registrations fell by 2.4% in 2021 to just below 10m units across the 27-country EU, according to the European Automobile Manufacturers Association, ACEA. Jincy Varghese, demand analyst at ICIS, forecasts EU automotive output to grow 17% in 2022, although it will still be down 26% from 2019 levels. A healthy recovery is only likely in the second half, she said in February.

The overall economic outlook for 2022 remains very mixed, said GKV president Roland Roth at the association’s annual results conference in early March. Around half of association members expected sales growth when poled in the run-up to the conference, but a good quarter expected further falls. Several were thinking about relocating or terminating production.

Roth called for a reduction in government surcharges on energy prices. As for material prices, he said recent increases have been “almost insane.” On average, prices for plastics in Europe increased by more than 50% year-on-year in the first half of 2021 and have stayed high. In February 2021, for example, virgin PET sold for around €1/kg. In March of this year, the price was around €1.7/k. Linear low density PE went from around €1.2/kg to around €1.9 over the same period.

But the GKV President remains optimistic: “In 2022, as plastics processors, we will continue to get the best out of polymer materials and successfully complete the tasks ahead,” he said.

Alarm bells have been ringing over energy prices at Unionplast, which represents Italian plastics processing companies. “The crisis in energy prices is seriously affecting a sector that has over 5,000 companies, and more than 100,000 employees,” says Marco Bergaglio, President of the association.

“The uncontrolled increase in energy costs and the growing difficulty in finding raw materials is a deadly mix for our sector and creates the real risk of not being able to meet the demands of our customers. This situation has inevitable consequences also on the prices of our products.”

European machinery makers in good shape

The picture is brighter with European plastics equipment suppliers. Thorsten Kühmann, Secretary General of EUROMAP, Europe’s Association for plastics and rubber machinery manufacturers, said in March that member companies’ order books were “filled to the brim. The current year will therefore be another very good year. We expect sales to increase by 5 to 10%.” However, here too, rising prices and now the war in Ukraine are increasing uncertainty.

Dario Previero is president of Amaplast, the association of Italian producers of plastics and rubber machinery and moulds. At the end of last year, he said: “According to our estimates, at the close of 2021 production should be a hair’s breadth from pre-pandemic levels, up 11.5% with respect to 2020. The clear recovery recorded in 2021 gives us good reason to expect performance beyond pre-crisis levels in 2022.”

Ulrich Reifenhäuser, CSO of Reifenhäuser Group and also chair of the K exhibitor advisory board, says the company has “an extraordinarily positive” order backlog for the current year. “A major factor here was the extremely high demand for our melt-blown nonwovens lines, which have made a decisive contribution worldwide to being able to produce sufficient medical protective masks to combat the pandemic – especially in Europe with local production capacities.”

Looking back at the financial year that has just closed for injection moulding technology major Engel, CEO Stefan Engleder said in mid-March: “We are closing a year with great challenges, but also great opportunities. We will close the 2021/2022 business year with a significant increase over the previous year. Material bottlenecks are currently one of the major challenges. So far, we have managed to avoid delivery delays as far as possible.”

Gerd Liebig, CEO of another injection technology major, Sumitomo (SHI) Demag, says that overall, consumption figures are good. “Nevertheless, the coronavirus situation clearly had an impact on demand. But we are anticipating a fast recovery due to our strength in business strategy.” Sales of machines are on track to surpass pre-pandemic levels at this company too.

“Demand continues to increase for all-electric models, and we anticipate this ratio will continue to increase,” says Liebig. “We’re forecasting further increases in 2022 in the automotive and consumer sectors. A decade ago, 20% of our machines were fully electric; now it is more than 80%.”

Packaging challenges

High and escalating resin prices globally means the packaging market is under continuing pressure, says Liebig. “Given that recyclable granular is now at the same price as virgin polymer was 12 months ago, the impetus to lightweight now stretches across all packaging material substrates, not just virgin polymers. We continue to focus on reducing material usage by improving the process and enabling our customers to produce ever thinner-walled parts.”

The move towards tethered caps (mandatory from 2024 under Single-Use Plastics Directive, or SUPD) and extensions of Extended Producer Responsibility (effective 2023) will inevitably have a strong influence, as does the new EU Packaging Levy on non-recycled packaging waste, Liebig says. (Since Jan 1, 2021, the EU charges member states €0.80/kg of plastics packaging waste that is not recycled. States are free to choose how to finance the levy.)

The European plastics industry is in fact having to contend with various pieces of legislation relating to plastics waste. For example, there is now a mandate that 55% of all plastic packaging in the EU be recyclable by 2030, as well as the levy on non-recycled plastic packaging waste. Some countries are also introducing local legislation (Spain and France for example), making the playing field not as level as it should be.

Industry is already having to face up to some consequences of the SUPD, some elements of which came into force on 3 July 2021 in most EU countries – although the roll-out of the legislation has not been entirely smooth. In Italy, for example, it only became law in January, with a delay on final implementation; it is also more flexible in its definitions of plastics products than Brussels originally intended, and whereas the SUP Directive does not exempt certain biodegradable plastics, the Italian legislation does.

On the subject of bioplastics, the European Bioplastics trade association says: “Unfortunately, in Europe, bioplastics still don’t obtain the same degree of support that other innovative industries receive from EU political decision makers. The EU Commission has sometimes contradictory positions on bioplastics. Member State positions on bioplastics also vary a lot, the regulatory environment is anything but harmonized.” This discourages investment in R&D and in production capacities, it says.

Despite these challenges, development in European bioplastics is “very positive. Global production capacities still represent less than 1% of the more than 367 million tonnes of all plastics, but by 2026, bioplastics production will pass the 2% mark for the first time.” Production capacities for bioplastics in Europe were close to 600,000 tonnes in 2021 and can be expected to increase to around 1,000,000 tonnes within the next five years.

In the UK, now outside the EU, a new tax on plastic packaging came into force on April 1 of this year. The tax will apply to plastic packaging components that do not contain at least 30% recycled plastic and that are either manufactured in the UK or imported into the UK (again, there are exemptions). The tax will be levied at a rate of £200/tonne (approx. €235/tonne).

At the British Plastics Federation, Director-General Philip Law is determined to see the positive side. “The Plastics Packaging Tax could ultimately be a platform for innovation and help reduce the heat of public debate,” he says.

Recycling on the rise

“New legislation and targets for the recycling of plastics and the use of recyclate are changing the way the whole plastics industry must operate,” says Elizabeth Carroll, Consultant, Recycling and Sustainability, at AMI Consulting in Bristol, UK, which has a new report out on mechanical recycling in Europe. “The mechanical plastics recycling industry, therefore, has become the focal point for investments, acquisition, and expansion,” she says.

Plastics recyclate production in Europe was 8.2 million tonnes in 2021 and is forecast to grow at a rate of 5.6%/year to 2030. That compares with the 35.6 million tonnes of commodity plastics that entered the waste stream in 2021. “This implies that Europe achieved an overall plastic recycling rate of 23.1%,” says Carroll. That figure is most likely to rise as the plastics industry makes major investments in recycling technologies of diverse types.

The picture of how to convert recycled plastics into high-value products is brightening. Says Engel’s Engleder: “Thanks to horizontal networking along the value chain, we will no longer have to downcycle materials in the future, but can actually re- or even upcycle them. If we exchange information and data across companies, we will be able to recycle plastic waste and produce high-quality plastic products from it again. Digital transformation is the prerequisite for rapidly advancing the issues of sustainability.”

At Sumitomo (SHI) Demag, CEO Liebig agrees that recyclate processing in itself is not an insurmountable technological challenge. “The greatest challenge is achieving comparable component performance and stabilising non-uniform material properties through intelligent process monitoring,” he says. “There are many promising projects underway, although recyclate performance is still dependent on purity.”

Michael Ruf, CEO of KraussMaffei, which has injection and extrusion technologies under its belt, says: “Circular Economy is not only an ecological but also an economic imperative. It is therefore a supporting pillar of KraussMaffei’s product strategy. Customers have already recycled more than one million tons of plastics with our systems.”

And at compounding equipment company Coperion, Marina Matta, Team Leader Process Technology Engineering Plastics, says: “We are observing many ground-breaking developments that significantly improve the sorting and washing quality of waste. The pyrolysis process has also recently been significantly enhanced so that this recycling process can be carried out in a much more energy-efficient way.”

Polymer suppliers going green

European polymer producers are making major efforts to improve the sustainability of their products. At polyolefins and compounds major LyondellBasell, Richard Roudeix, Senior Vice President – Olefins & Polyolefins Europe, Middle East, Africa and India, says: “Becoming climate neutral by 2050 requires the industry to go through a deep transformation in a relatively short time frame, especially considering that some technologies to completely decarbonise our processes are still in early phases of development. Currently, high costs for energy are compressing industry profits at the exact moment the industry needs additional funds to make decarbonization investments.”

Polymer suppliers have not been entirely eye to eye with European policy makers on how to move to a green economy, but opinions are converging. “LyondellBasell believes alternative government policies and voluntary measures are more effective than relying uniquely on national taxes in achieving environmental goals,” says Roudeix. He suggests that a fee based on a product’s recyclability could be used to fund improvements in plastics recycling infrastructure and programs.

LyondellBasell aims to produce and market two million metric tonnes of recycled and renewable-based polymers annually by 2030. It has already launched plastics made from mechanically and chemically recycled plastic waste, as well as bio-based feedstocks.

Similar comments come from SABIC. In 2019, it launched certified circular polymers produced by upcycling used plastics. “However, the reality is that there is currently greater demand for recycled plastics than the supply available,” says a representative. “Manufacturers need to find a way to scale up in order to instigate real change.”

Greater regulatory support from governments is required to help industry players scale new techniques such as chemical recycling, says SABIC. “For example, it is important that the European regulatory framework recognize chemical recycled resin as equivalent to virgin resin produced from fossil feedstock in order to increase availability and drive scalability.”

At BASF, which like SABIC has a broad pallet of plastics aimed at multiple markets, a representative says: “We expect that plastics will play a vital role in achieving the EU´s net zero emissions goals by helping to deliver emission savings for key sectors like construction, automotive, or food packaging. We are striving worldwide to achieve net zero CO2 emissions by 2050. In addition, we want to reduce our greenhouse gas emissions worldwide by 25% by 2030 compared with 2018.”

Polycarbonate and polyurethanes major Covestro has one of the boldest strategies among polymer suppliers. Its target is to have net zero emissions for scope 1 and 2 (related to its own production and external energy sources) by 2035.

Plastics Europe Managing Director Virginia Janssens, Managing Director, Plastics Europe, says its members support the 30% EU mandatory target for recycled content in plastics packaging by 2030 and have recently announced 7.2 billion euros of planned investments in chemical recycling by 2030 in Europe.

Throughout and beyond what hopefully will be the temporary crises of COVID and Ukraine, “the world remains firmly focused on circularity, plastic pollution, and environmental leakage,” says Wiesweg at IHS Markit. “The circularity drive will spur innovation in chemical recycling, helping achieve world scale commercial viability which along with mechanical recycling will steadily displace virgin plastic resin.”

K 2022 – the world’s most important trade fair for the industry

In 2022, as every three years, K in Düsseldorf will once again be the most important information and business platform for the global plastics and rubber industry. Nowhere is the internationality as high as in Düsseldorf. Exhibitors and visitors from all over the world will come together and take advantage of the opportunities from 19 to 26 October this year not only to demonstrate the industry’s capabilities and present innovations, but also to exchange views on the situation of the plastics and rubber industry in the various regions of the world, discuss current trends and jointly set the course for the future.

Tribological issues in engineering Teflon

Tribological issues in engineering Teflon

Institute of Chemical Technology, Mumbai, Marathawada Campus, Jalna.

Teflon, scientifically known as polytetrafluoroethylene (PTFE), is one of the most versatile materials known to history of material science; this invention was done by the Dupont research team. It was an accidental invention made by the team working to find the coolant material; they ended up with a white slippery material- Teflon. The C-F bond is termed the strongest organic bond, making Teflon inert in various operating conditions such as thermal, mechanical, surface, and chemical. It shows almost negligible water absorbance due to its hydrophobic surface, making it durable. It is a carbon-based polymer due to the absence of charge carriers. i.e., electrons. Teflon is a bad conductor of electricity and heat. These properties can be regulated by adding conducting inorganic fillers.

Along with all these properties, Teflon blends and composites are famous for their outstanding tribological performance. Tribology is the branch of material science that deals with the study of the performance of a surface by calculating its coefficient of friction and wear loss. A wide range of Teflon-derived products based on their tribological properties, conveyor belts, chain lubes, cleaner kits for increasing the performance of automobiles, etc., are available in the market. The selection of appropriate material at the industrial level significantly affects the cost of operation positively. Industries appreciate polymeric material and their derived products as an alternative to other traditional materials such as metal and inorganic ceramics due to their durability and lighter weight. Though we have a long-range of polymeric materials available at the current date, we must choose wisely as per our requirements to get the most efficient output with the same process. One should select the most appropriate materials, and its periodic maintenance significantly impacts energy consumption and the cost-efficiency of the process. According to information from HMSO, 1966. Lubrication (Tribology) Education and Research, UK Department of Education and Science a quantitative analysis of savings is as shown in the figure below –

Tribological issues in engineering Teflon                      (Percentage-wise distribution of savings achieved after good tribological practice)

The tribological performance of any material can be examined by comparing and analyzing the contact between the surface of that material and the reference material. All these studies of tribological performance are called tribotesting, and the instrument used for it is called tribotesters. There are four main configurations of tribotesters: Pin on the plate, Pin on disc, Ring on the plate, and Ball on the ball. Tribological performance is determined by varying different parameters such as sliding distance, sliding time, and RPS for the tip of the tribotester. The material undergoes various levels of tribotesting to get permitted for the particular application.
These levels are as mentioned in the figure given below –  

Tribological issues in engineering Teflon

      (Different levels of tribotesting and their respective consequences)

There are some demerits of Teflon, such as low dimensional stability with temperature rise; Insolubility in a long-range solvent, which limits the ease of processing; low thermal and electric conductivity; releases toxic gases at high temperatures (above 320 ⁰C). 

Teflon blends and composites-
Teflon shows a low coefficient of friction and excellent wear performance with high durability due to its chemically inert nature; thus, PTFE is considered as one of the most promising tribological materials known. It also exhibits some results, such as low dimensional stability with increasing load and temperature; the load-bearing capacity value is also low for PTFE. In order to improve these characteristics and overcome the limiting conditions, high-performance engineering polymeric materials such as PEEK and PI are mixed with virgin PTFE. Improvement in creep performance of PTFE is also a topic of research. The operating environment also plays a crucial role in the tribological performance of Teflon; with an experimental study, it was observed that when Teflon is operated in marine water conditions, it shows better results as compared with dry and normal water environments. In a marine water environment, deposition of salts and minerals results in reduced wear loss of the surface. According to researchers, the creep performance of virgin PTFE can be improved by adding glass fiber and carbon fiber. The addition of glass fiber was also found to enhance the performance of PTFE in the oxidizing environment while mixing carbon fibers with virgin PTFE enhances its hardness as well as thermal and electrical conductivity. It is pretty apparent from the above discussion that mixing virgin Teflon improves the individual performance, so to enhance such set of properties; we have to select groups of polymers or fillers to obtain desired results. 

Gujarat Fluorochemicals Ltd (GFL), Chemours, Arkema, and Hindustan Fluorocarbons Limited are the leading industries producing fluoro polymers and derived products. According to the survey conducted, around 200,000 tons of Teflon is manufactured worldwide annually, this number keeps on increasing. From this we can see the increasing demand of Teflon as well as its domain of application. 

Acknowledgment- I would like to express my immense gratitude to Prof. Dr. Girish M. Joshi sir, and thank him for motivating and guiding me to complete this article. Also, I would like to thank the Institute of Chemical Technology, Mumbai, Marathwada Campus, Jalna.  

Sarang Subhashchandra Shindalkar – currently studying Integrated M. Tech in Chemical Engineering with minor material science at ICT, Mumbai, Marathwada Campus Jalna since 2019. Presently working as a student intern at Century paper and pulp, Lal Kuan, Uttarakhand.

Plastic used in Fertilizer Industry

Plastic used in Fertilizer Industry

Institute of Chemical Technology, Mumbai, Marathwada Campus Jalna.

The main objective of employing various types of plastic (packaging material) in the fertilizer sector is to meet the specific needs of the fertilizer being packaged. Plastic is also utilised to make fertilizer-related equipment, in addition to packaging. Fertilizers are made by a variety of companies all over the world, and while their formulas may differ, their packing materials are very similar.

The primary goal in choosing an appropriate material for fertilizer packaging is to ensure that the fertilizer chemical does not lose its properties due to reactions with environmental exposures such as moisture, reactive gases, and biological factors such as fungal growth, among others. To accomplish this, the packaging material should be chemically stable in normal natural circumstances, recyclable, and inexpensive. The packaging material used must have some properties which are important because lack of these properties can affect the fertilizer or it can react with the plastic packaging material and can contaminate the product. The properties of these materials should be durable, flexible, waterproof, surface non-reactant, cost-efficient and eco-friendly.

The type of fertilizer packaging includes polyethylene derivatives such as LDPE, LLDPE, and HDPE Other derivatives include burlap, cloth, and PP woven bags; however, while cloth and burlap do not contain plastic material, the PP woven bag does contain polypropylene, which is also a type of plastic material used in the fertilizer industry. The PE material is used because of its exceptional qualities such as flexibility, durability, water resistance, tear resistance, and leak resistance. Although almost all PE materials almost contain the same composition, their properties differ for example LDPE (low density polyethylene) consist of short, branched chains that are evenly distributed throughout the polymer structure. HDPE (high density polyethylene) has produced by very less branching during the process of polymerization; HDPE is used for heavy loads safely and easily as it is tear resistant polymer. LLDPE (linear low-density polyethylene) production requires significantly less energy than LDPE. LLDPE is used whenever it is necessary to produce bags with a thickness less than LDPE. Nowadays, the most common bags used in the market for fertilizer packaging are LLDPE.

Because of the polypropylene strips that are waved into one another, PP woven bags are noted for their extreme strength. These bags are incredibly cost effective, and they also let air to circulate inside the bag, preventing it from expanding due to fertilizer gas production.

Many fertilizer companies utilise PP woven bags for packaging because of their qualities. BOPP stands for Biaxially oriented zolypropylene – modified version of PP. BOPP bags are long-lasting and easy to use because the polypropylene is stretched in a machine and in a transverse orientation, it provides excellent resistance to dirt, moisture, and contaminants.

Aside from industry, agricultural plastics such as ethylene vinyl acetate copolymer (EVC), polyvinyl chloride (PVC), and polycarbonate are used for a variety of applications such as crop shielding, UV filtering, and so on. Though plastic is used in these Fertilizer bags it can be recycled, allowing the plastic to be reused. The bag has been emptied, but it still contains traces of the fertilizer material, which is not harmful if it is used with precautions.

Proper disposal of these packaging bags is critical, however due to a lack of awareness, this material is generating major environmental problems. These plastic packaging materials will be replaced in the future with dissolvable packaging, which could be a more Environmentally Friendly option. Nano fertiliser synthesis is also a major research issue; thus, a more particular packing material will be needed to ensure that the Nanoparticles do not decay and can be stored for a significant duration.

Acknowledgement – Firstly, I would like to express my heartfelt gratitude to Prof. Dr. Girish M. Joshi sir for inspiring and mentoring me to accomplish this article. I would also like to convey my gratitude to the Institute of Chemical Technology, Mumbai, Marathwada Campus Jalna.

Sarika Ravindra kulkarni – is a student at ICT, Mumbai, Marathwada campus Jalna, pursuing an Integrated MTech in chemical engineering with a minor in material science. Currently working as a student Intern at Century Pulp and Paper, Lalkuan, Uttarakhand.

Cars could get a ‘flashy’ upgrade

Cars could get a ‘flashy’ upgrade

The part of an old car that gets turned into graphene could come back as a better part for a new car.

Rice University chemists working with researchers at the Ford Motor Company are turning plastic parts from “end-of-life” vehicles into graphene via the university’s flash Joule heating process.

The average SUV contains up to 350 kilograms (771 pounds) of plastic that could sit in a landfill for centuries but for the recycling process

The goal of the project led by Rice chemist James Tour and graduate student and lead author Kevin Wyss was to reuse that graphene to make enhanced polyurethane foam for new vehicles. Tests showed the graphene-infused foam had a 34% increase in tensile strength and a 25% increase in low-frequency noise absorption. That’s with only 0.1% by weight or less of graphene.

And when that new car is old, the foam can be flashed into graphene again.

“Ford sent us 10 pounds of mixed plastic waste from a vehicle shredding facility,” Tour said. “It was muddy and wet. We flashed it, we sent the graphene back to Ford, they put it into new foam composites and it did everything it was supposed to do.

“Then they sent us the new composites and we flashed those and turned them back into graphene,” he said. “It’s a great example of circular recycling.”

The researchers cited a study that estimates the amount of plastic used in vehicles has increased by 75% in just the past six years as a means to reduce weight and increase fuel economy.

Segregating mixed end-of-life plastic by type for recycling has been a long-term problem for the auto industry, Tour said, and it’s becoming more critical because of potential environmental regulations around end-of-life vehicles. “In Europe, cars come back to the manufacturer, which is allowed to landfill only 5% of a vehicle,” he said. “That means they must recycle 95%, and it’s just overwhelming to them.”

Much of the mixed plastic ends up being incinerated, according to co-author Deborah Mielewski, technical fellow for sustainability at Ford, who noted the U.S. shreds 10 to 15 million vehicles each year, with more than 27 million shredded globally.

“We have hundreds of different combinations of plastic resin, filler and reinforcements on vehicles that make the materials impossible to separate,” she said. “Every application has a specific loading/mixture that most economically meets the requirements.”

“These aren’t recyclables like plastic bottles, so they can’t melt and reshape them,” Tour said. “So, when Ford researchers spotted our paper on flash Joule heating plastic into graphene, they reached out.”

Flash Joule heating to make graphene, introduced by the Tour lab in 2020, packs mixed ground plastic and a coke additive (for conductivity) between electrodes in a tube and blasts it with high voltage. The sudden, intense heat — up to nearly 5,000 degrees Fahrenheit — vaporizes other elements and leaves behind easy-to-solubilize, turbostratic graphene.

Flash heating offers significant environmental benefits, as the process does not require solvents and uses a minimum of energy to produce graphene.

To test whether end-of-life, mixed plastic could be transformed, the Rice lab ground the shredder “fluff” made of plastic bumpers, gaskets, carpets, mats, seating and door casings from end-of-life F-150 pickup trucks to a fine powder without washing or pre-sorting the components.

The lab flashed the powder in two steps, first under low current and then high current in a heater Wyss custom designed for the experiment.

Powder heated between 10 to 16 seconds in low current produced a highly carbonized plastic accounting for about 30 percent of the initial bulk. The other 70% was outgassed or recovered as hydrocarbon-rich waxes and oils that Wyss suggested could also be recycled.

The carbonized plastic was then subjected to high-current flashing, converting 85% of it into graphene while outgassing hydrogen, oxygen, chlorine, silicon and trace metal impurities.

The chance to incorporate life-cycle analysis (LCA) into a Rice research project was also a draw for Wyss. “I’m driven by sustainability, and it’s where I want to focus in my career,” he said.

The LCA involved comparing graphene from flashed car parts to that produced by other methods, and evaluating recycling efficiency. Their results showed flash Joule heating produced graphene with a substantial reduction in energy, greenhouse gas emissions, and water use when compared to other methods, even including the energy required to reduce the plastic shredder fluff to powder.

Ford has been using up to 60 pounds of polyurethane foam in its vehicles, with about 2 pounds of that being graphene-reinforced since 2018, according to co-author Alper Kiziltas, a technical expert at Ford research who focuses on sustainability and emerging materials. “When we got the graphene back from Rice, we incorporated it into our foam in very small quantities and saw significant improvement,” he said. “It exceeded our expectations in providing both excellent mechanical and physical properties for our applications.”

Graphene clearly has a future at Ford. The company first introduced it into a variety of other under-the-hood components and in 2020 added a graphene-reinforced engine cover. Kiziltas said the company expects to use it to reinforce hard plastics as well.

“Our collaborative discovery with Rice will become even more relevant as Ford transitions to electric vehicles,” Mielewski said. “When you take away the noise generated by the internal combustion engine, you can hear everything else in and outside the vehicle that much more clearly.”

“It’s much more critical to be able to mitigate noise,” she said. “So we desperately need foam materials that are better noise and vibration absorbers. This is exactly where graphene can provide amazing noise mitigation using extremely low levels.”

https://www.rice.edu/

 

LanzaTech, with the support of Danone, Discovers Method to Produce Sustainable PET Bottles from Captured Carbon

LanzaTech, with the support of Danone, Discovers Method to Produce Sustainable PET Bottles from Captured Carbon

A consortium, including LanzaTech and Danone, led to the discovery of a new route to monoethylene glycol, (MEG), which is a key building block for polyethylene terephthalate, (PET), resin, fibers and bottles. The technology converts carbon emissions from steel mills or gasified waste biomass directly into MEG. The carbon capture technology uses a proprietary engineered bacterium to convert carbon emissions directly into MEG through fermentation, bypassing the need for an ethanol intermediate, and simplifying the MEG supply chain. The direct production of MEG was proven at laboratory scale and the presence of MEG was confirmed by two external laboratories.

“We have made a breakthrough in the production of sustainable PET that has vast potential to reduce the overall environmental impact of the process,” said Dr. Jennifer Holmgren, CEO of LanzaTech. “This is a technological breakthrough which could have significant impact, with applications in multiple sectors, including packaging and textiles!”

While there is no organism in nature known to produce MEG, through this proof-of-concept stage, LanzaTech has used Synthetic Biology and AI tools to discover multiple novel pathways to make MEG directly from carbon emissions. By combining and prototyping various sets of enzymes identified from different sources in novel ways, LanzaTech has successfully reprogrammed its ethanol producing bacteria to fix and channel carbon into MEG.

This early-stage proof of concept work shows for the first time that it is possible for a bacterium to directly produce MEG from gas. By producing MEG directly, the new technology avoids the multiple processing steps required to convert ethanol into ethylene, then ethylene oxide and then to MEG. LanzaTech anticipates that when scaled successfully after a multiyear development phase, the direct production process will lead to PET bottles and PET fibers with a reduced environmental impact.

LanzaTech is partnering with leading companies to improve the environmental impact of packaging. Given the success of this proof-of-concept phase, LanzaTech, with the support of Danone, plans to continue the scale-up phase of its direct-to-MEG technology.

“We have been working with LanzaTech for years and strongly believe in the long-term capacity of this technology to become a game changer in the way to manage sustainable packaging materials production. This technological collaboration is a key enabler to accelerate the development of this promising technology,” said Pascal Chapon, Danone R&I Advanced Techno Materials Director.

Avery Dennison and Wiliot announce strategic partnership to build and scale the future of the Internet of Things

Avery Dennison and Wiliot announce strategic partnership to build and scale the future of the Internet of Things

Avery Dennison Corporation, the world’s largest provider of RFID and digital ID solutions, and Wiliot, the Internet of Things pioneer, today announced a strategic partnership dedicated to scaling the IoT to the next level, creating a new era of IoT that benefits people and the planet.

Avery Dennison will leverage its R&D capabilities and scale to design and manufacture second-generation Wiliot tags, which are stamp-sized computers powered by Bluetooth that attach to any product or packaging to embed it with intelligence and connectivity to create more agile, profitable, and sustainable supply chains.

In addition, Avery Dennison will integrate Wiliot sensing services (SaaS) with its atma.io connected product cloud, enabling tag sensing information to be added to the end-to-end item-level data of a connected product. Both companies share a vision for the future of the IoT where almost everything is connected to the internet; not just phones, computers, and homes, but also food, medicine, clothing, and nearly everything else. With an ambition to help to eliminate waste and provide unparalleled transparency and consumer connection.

The partnership will help scale the manufacturing capacity of Wiliot tags significantly, and will leverage Avery Dennison’s market development, innovation and ROI expertise to drive value and enable the company to deliver on large projects to some of the world’s largest retail, food & beverage, and pharmaceutical brands.

“Wiliot’s passive Bluetooth technology offers the ability to work with existing infrastructure and provides another accelerator to the growth of IoT. Combined with sensing capabilities and security features as standard, this expands our portfolio and opens up many new use cases for our customers and partners,” stated Francisco Melo, vice president and general manager, Avery Dennison Smartrac.

https://www.wiliot.com/