SABIC’s Glass Fiber-reinforced Copolymer Earns UL Verified Mark

SABIC announced that its #STAMAX™ 30YH570 resin has earned the UL Verified Mark from Underwriters Laboratories.

This 30% #glass fiber-reinforced copolymer resin, a featured product offered under the company’s BLUEHERO™ electrification initiative, is the first polymer used in electric vehicle (EV) battery systems to receive UL Verification for marketing claims of thermal and mechanical performance.

UL Verification, based on an objective, scientific assessment by a respected third party, can give customers high confidence in the flame delay performance of this product.

Milestone in Evolving EV Battery Systems:

The vast majority of EV batteries perform without issues throughout their useful life. Although thermal runaway incidents are extremely infrequent, the safety-conscious automotive industry is highly focused on ensuring that the design and performance of EV battery systems prolong the time available to exit a vehicle by delaying the propagation of a fire beyond the battery pack for as long as possible.

A key consideration is the proper selection and deployment of fire protection materials used for battery pack components, including enclosures and covers, trays, thermal barriers that separate cells into groups, etc.

According to Venkatakrishnan Umamaheswaran (UV), SABIC’s global Automotive marketing director, “UL Verification for the thermal runaway protection of STAMAX™ 30YH570 resin is a significant milestone in our development of polymer materials for today’s rapidly evolving #EVbattery systems. This recognition not only underscores the exceptional performance and safety features of our polymer, but also reinforces the importance of our BLUEHERO™ initiative. By providing cost-effective, lightweight plastic solutions, SABIC is helping to advance EV technology.”

Thermoplastics Over Outdated Steel

Thermal runaway box testing according to #UL 2596, Test Method for Thermal and Mechanical Performance of #BatteryEnclosure Materials, demonstrated that STAMAX™ 30YH570 resin withstood an internal box pressure of 250 kPa and an internal box temperature of 420°C. Results were based on three replicate tests, with a panel thickness of 4mm. The SABIC material features an intumescent capability that helps with fire suppression. Its other key properties include high stiffness and strength and easy processing.

This UL Verification serves as further validation of #SABIC’s continued progress under its BLUEHERO™ initiative in demonstrating the performance advantages of #thermoplastics over outdated steel and other metals for #batterypacks. These benefits include weight and cost reduction, increased functional integration, and enhanced electrical and thermal insulation.

Source: SABIC/Omnexus-specialchem

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Today's KNOWLEDGE Share :Hermann Emil Fischer-Nobel prize 1902

Today's KNOWLEDGE Share

Hermann Emil Fischer-Nobel prize 1902

Emil Hermann Fischer, more commonly known as Emil Fischer, was an eminent German organic chemist. He received the 1902 Nobel Prize for Chemistry for his influential research regarding purines and sugars.

Fischer followed Baeyer to Munich in 1875 as an assistant, becoming a Privatdozent (unpaid lecturer) in 1878, and an assistant professor in 1879. During his time in Munich Fischer continued his research on hydrazines. Together with his cousin Otto, Fisher demonstrated that rosaniline and related dyes were derivatives of triphenylmethane.

Three years later, having now a reputation as an excellent organic chemist, Fischer accepted the position of Professor and Director of the Chemistry Institute at Erlangen in 1882, later accepting a similar position in Würzburg in 1885.

During this time, Fischer began his research on the active constituents of tea, coffee and cocoa (caffeine and theobromine). His research led him to realize that many vegetable substances all belonged to one family group. He gave the name purines to these compounds, which had a base containing nitrogen and a bicyclic structure. He successfully synthesized several purines including caffeine in 1895 and uric acid in 1897. He suggested formulas for the purines uric acid, caffeine, theobromine, xanthine and guanine.

In addition to purines, Fisher also researched the known sugars and he established the stereochemical nature and isometry of these sugars. He synthesized glucose, fructose and mannose in 1890 starting from the substance glycerol.

Fischer became the successor to A. W. von Hofmann, as director of the Chemistry Institute of Berlin in 1892, a position he kept until his death.

Between 1899 and 1908 he studied proteins and enzymes. He established the important “Lock and Key Model” for the visualization of the substrate and enzyme interaction. He formulated that amino acids, which are the building blocks of proteins, are joined together by “peptide bonds”. He also devised a method of combining amino acids to form proteins known as peptides.

Source:https:famousscientists.org

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#chemistry #purines #enzymes #sugars #peptide #aminocids #proteins #discovery #nobelprize

Avantium Secures EU Grant to Develop FDCA based Biodegradable Polyester Blends

Avantium announces that it has been awarded a €0.76 million grant by the EU Horizon Europe program for its participation in the research and development program Rebiolution.

This program aims to design and synthetize biobased and #biodegradablepolyester blends based on #FDCA (furan dicarboxylic acid) and other biobased monomers, to be used as plastic coating for food #packaging and for mulch films for #agricultural applications.

Opportunity to Create Variety of Polymers:

The €0.76 million grant will be paid out in tranches to #Avantium over a period of three years, starting in June 2023. Avantium has developed the YXY® Technology that converts #plantbased sugars into FDCA, which can be polymerized together with plant-based mono-ethylene glycol (MEG) into the sustainable plastic PEF (polyethylene furanoate).

As a monomer, FDCA brings the opportunity to create a variety of polymers, from polyesters, polyamides, and polyurethanes, to coating resins, plasticizers and other chemical products. Avantium is currently constructing the world’s first commercial FDCA facility in Delfzijl (the Netherlands), with a capacity of 5,000 tons per annum and set to open in 2024.

Under the Rebiolution program, Avantium will provide several hundreds of kilograms of FDCA for the development and production of a biodegradable and compostable polyester blend. The intention is to use the resulting Rebiolution bioplastic as plastic coating for food packaging (paper/plastics composites), as an alternative for #fossilbased polyethylene (PE).

Another intended application for the Rebiolution #bioplastic is to use it as mulch films for agricultural applications. As such, this new polyester could be a fully biobased alternative for the widely used #PBAT (butyleneadipate-co-terephthalate), which is partly fossil-based.

Kai Siegenthaler, coordinator of the Rebiolution project and responsible for biopolymers research at BASF, comments, “FDCA is a key element in the Rebiolution strategy. The potential of FDCA is based on its plant-based origin and on its structural similarity to the largest-volume commodity chemical #PTA (purified terephthalic acid). By reacting FDCA with other biobased monomers, we intend to produce a 100% biobased and biodegradable polyester which also fulfils requirements regarding processing, lifetime, performance, and cost effectiveness. We strongly believe that the resulting bioplastic can help to achieve the challenging circularity goals which the EU sets itself.”

“We are delighted to supply FDCA for the Rebiolution project. FDCA was listed in 2004 by the US Department of Energy as the number two in the top 12 priority chemicals for establishing the green chemistry industry of the future.

Source: Avantium/specialchem

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Today's KNOWLEDGE Share:How to choose flame retardant?

 Today's KNOWLEDGE Share

How to choose flame retardant?

According to the nature of the flame retardant material suitable for which #flameretardant #mechanism , in order to choose flame retardants.

1.Heat absorption mechanism

Some flame retardants will decompose when heated to generate water, water evaporation to take away a lot of heat, so as to achieve the effect of flame retardant, which is the same as the principle of using water to extinguish fire, such common flame retardants are #borax, #aluminumoxide hydrate, etc..

2.Covering effect

Some flame retardants will decompose when heated to generate a stable cover layer, making the material isolated from oxygen, so as to achieve the effect of flame retardant, commonly used flame retardants such as #phosphateester compounds and fireproof foam coatings.

3.Dilution effect

Some flame retardants will decompose when heated to generate a large number of non-flammable gases (carbon dioxide, ammonia, chlorine chloride, etc.), dilute the air around the material, significantly reducing the concentration of oxygen, so as to achieve the flame retardant effect, which is the same as the principle of dry powder fire extinguishers, such common flame retardants are phosphoric acid amine, amine chloride, amine carbonate, etc.

4.Inhibiting effect

The burning of some polymer materials is mainly a free radical chain reaction, and some substances can capture the active intermediates of the combustion reaction, etc., and inhibit the free radical chain reaction, so that the burning rate is reduced until the flame is extinguished. Commonly used flame retardants are bromine, chlorine and other organic halogen compounds.

Source:Sandy xu

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#flameretardant #fireresistant #wireandcable #engineeringplastics #polymers #plasticsindustry

Innovative fibre technology could revolutionize building construction

With the Texoversum, Reutlingen University has put into operation a training and innovation center for the textile industry that is unique in Europe. The almost 2,000 square meter textile-like façade of the new building also causes a sensation architecturally: It charmingly combines the innovative power of this industry with the 160-year tradition of Reutlingen as a textile location. The highlight: The components were wound from fibres that are fixed with a special plastic resin.

The façade of the Texoversum is just one example of a brand new technology that could completely revolutionize the construction industry. The sophisticated structure was designed on the computer and is based on #carbonfibres wound by #robots. Similar to networks in nature, for example in spider webs, beetle wings or palm leaves, the fibre structures are also very lightweight, but at the same time highly resilient, and require very little material. This not only saves resources, but also facilitates transport and assembly of the components.

The co-inventor of the innovative technology is architect Prof. Moritz Dörstelmann, whose company FibR also realized the façade of the Texoversum: “In contrast to conventional steel and concrete structures, we are able to get by with a minimum of material, because the robots only process as many fibres as are needed for the strength of the respective structure. As a result, we also save large amounts of #CO₂emissions.” Dörstelmann also sees advantageous applications for the technology in roof structures, supports and, not least, interior fittings.

The necessary strength and durability of the #composite is provided by #Covestro’s #aliphatic #polyurethane resin system Desmocomp®, in which the fibres are embedded as if in a matrix. “The resin is highly resistant to weathering and the sun’s high-energy #UVradiation, making it very suitable for outdoor applications,” explains Pejman Norastehfar, architect and specialist for #construction applications in Covestro’s #coatings and #adhesives segment. “Other plus points in the construction sector are its excellent chemical and #flameresistance.”

In the Texoversum, the spun #façade performs several important functions at once: it gives the building a unique look and stabilizes the surrounding balconies. It also serves as a railing and provides the necessary shade for the glass front behind it.

The building provides approximately 3,000 square meters of space for workshops, laboratories, a textile collection, think tank space and classrooms. The costs for the construction of the Texoversum amounting to 18.5 million euros were borne by the employers’ association Südwesttextil, whose members include FibR GmbH in Kernen, east of Stuttgart.

Source:covestro/jeccomposites.com

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