AUTOMOTIVE | INTERIORS AND EXTERIORS
Above: Avient’s reSound R TPEs incorporate 25% recycled content from polyvinyl butyral (PVB) from broken automotive windshields and laminated architectural glass
automotive requirements, and they can be col- oured. The material is currently being approved by a German car manufacturer. The new Dryflex Circular TPEs can be used in various automotive interior applications, such as inlay mats, cup holders, sealing lips and HVAC parts. Lanxess has supplied Chinese car manufacturer Geely with a high modulus and high flow PA 6 base material – Durethan BKV50H2.0 EF – for a front-end carrier to provide a modern lightweight design with optimised costs and good mechanical performance. While the lower cooler mounting is in sheet metal, the complex upper member was developed using the highly filled and heat stabi- lised Durethan BKV50H2.0 EF, a material well suited for structural components that require high stiffness and strength, says Lanxess. The full plastic design for the upper section caters to a wide range of requirements of this multi component assembly. The concept is a demonstration of a hybrid solution application in automotive lightweight structures with a high modulus thermoplastic material, but also provides a cost-effective solution to achieve multiple saving targets. Lanxess has also introduced a PA 6 compound
made from 92% sustainable raw materials with automotive applications including car front ends, brake pedals and oil pans. The company says that Durethan BLUEBKV60H2.0EF is an easy-flowing compound that uses more sustainable raw materi- als than in any other quality glass-fibre-reinforced plastic. The new plastic grade is the first product in the new Scopeblue series. The brand label identi- fies products that either consist of at least 50% circular (recycled or biobased) raw materials, or whose carbon footprint is at least 50% lower than that of conventional products. One of the raw materials used in the compound’s production is
34 INJECTION WORLD | November/December 2021
cyclohexane from sustainable sources – meaning cyclohexane that is either bio-based, recycled bio-based or produced by means of chemical recycling. The material is also strengthened with 60wt.% glass fibres comprising industrial glass waste instead of mineral raw materials. The alternative raw materials that Lanxess uses in the precursors for PA 6 are chemically identical to their equivalents of fossil origin (drop-in solutions), so Durethan BLUEBKV60H2.0EF exhibits the same characteristics as the virgin material and can be processed just as easily using exactly the same production tools and facilities with no conversion work needed. The developers are looking to increase the content of sustainable raw materials in this compound to 100%. Avient has introduced a new series of polyam- ide-based Complēt long fibre reinforced thermo- plastic composites with enhanced moisture resistance and smooth surface aesthetics for lightweighting automotive and powersports applications. The company says that the formula- tions feature PA 6 and 66 with delayed moisture absorption, which prolongs the effectiveness of their structural performance in moisture-rich environments. These new materials also take aim at inconsistent surface appearance issues with long fibre polyamides, which have affected quality perceptions in the past. Long glass fibre reinforced grades of Complēt have surfaces that are smooth and virtually free of visible fibre. Avient has also made additions to its growing
reSound R recycled content TPE range, which are suitable for automotive applications that benefit from vibration damping, such as door mats, door damping and glove boxes. The materials are a result of close collaboration with Shark Solutions, a manufacturer of sustainable PVB products. Both new TPEs contain 25% post-consumer recycled content from PVB reclaimed from broken automo- tive windshields and laminated architectural glass. Avient’s formulation allows the supply of repro- cessed, high-quality, non-toxic PVB to be upcycled into more sustainable TPEs with good properties. Developed in 45 to 55 Shore A durometers, the new reSound R grades are injection mouldable TPEs that can be overmoulded to PP and come in a natural grade that can be easily coloured. EMS-Grivory has developed two new polyamide compounds, Grivory G5V and Grivory HT6, for automotive metal replacement applications. The company says that both products expand the application opportunities for polyamides into higher temperature ranges and enable the cost- efficient production of lightweight components,
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IMAGE: AVIENT
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