ELECTRIC VEHICLES | COMPOUNDS
other automotive applications,“ says Matt Mitchell, Director of Global Marketing, Specialty Engineered Materials. The company also offers its Edgetek polyketone
(PK) grades, which it claims offer an alternative to PA that can lower carbon footprint. Edgetek PKE NHFR formulations overcome some of the limita- tions of PA6 by delivering low moisture uptake as well as good chemical, wear and impact resistance. According to Avient, production of PK emits up to 61% less CO2 than production of PA66 and 46% less than PA6. The Edgetek PKE materials can also provide flame retardant performance to UL94 V-0.
Above: Avient sees its Edgetek polyketone providing a low emission alternative to PA in EV applications
the Wittenburg Group, says it is attracting a lot of interest in the EMI shielding PA6 and PC-based compounds it introduced last year. It says these allow shielded solutions that are more affordable, safer and better performing than traditional solutions. “We can achieve 20 to 60 dB attenuation in the
most frequently used frequencies for e-mobility. Applications include ECU housing, inverter housing and PCB housing,” says Christine Van Bellingen, Business Development Manager, Conductive Compounds at Witcom. “For over 15 years, we have been a worldwide supplier of radar absorption compounds used to enhance ADAS radar sensor performance [and] their role was recently extended to door opening protection. On top of PA, PP, PBT and PC radar absorption grades for RF absorbers or brackets, we also offer softer radar materials based on TPEs. This technology is key for EV cars and aids safer and more autono- mous driving as 100% of the sensor power can be dedicated to its basis calculation rather than being influenced by ghosting effect, for instance.” Witcom also provides plastic compounds for use in automotive gears and bearing applications, where they provide reduced noise and improved wear resistance. “In order to continue using these materials responsibly in a sustainable future, we have developed several compounds without PFOA/PFAS that comply with increasingly stricter legislations,” Van Bellingen says. Last year, Avient introduced two new grades within its reSound Rec TPE portfolio of materials containing recycled content. Offering Shore-A hardnesses of 47 and 54, both TPE grades are formulated with polyvinyl butyral (PVB) recycled from automotive glass. “We are closing the loop by incorporating recycled PVB from vehicle glass into our reSound Rec TPEs which then go back into
32 COMPOUNDING WORLD | February 2023
Accelerating transition Launched last year, SABIC’s Bluehero programme is intended to provide “an expanding ecosystem of materials, solutions, expertise and programs designed to help accelerate the world’s energy transition to electric power and support meeting global goals on climate change.” Delivery of automotive polymer materials, solutions and capabilities for the enhancement of EV battery systems is its first area of focus. “The global transition toward clean energy and decarbonisation is driving innovation in batteries at an ever-faster pace and the battery industry needs new materials with the right property profiles to implement more sustainable, safer and efficient energy storage concepts,” says Bob Maughon, Executive Vice President, Sustainability, Technology and Innovation and Chief Technology and Sustain- ability Officer at the company. SABIC sees a need for new battery designs with enhanced performance in terms of structural integrity and operating safety. It says it has carried out extensive research on performance of EV batteries exposed to external fires and internal runaway situations, highlighting results from tests based on UL 2596, which combines pressure, ablative force, heat, and fire exposure. Noryl NHP8000VT3 PPO-based resin has been developed to meet these demands. It achieves a high comparative tracking index performance (CTI PLC0), provides ultra-thin-wall extrusion and thermoforming capability, and meets the UL94 V-0 standard at 0.25mm with a non-brominated, non-chlorinated flame retardant system. It is said to be well-suited for production of insulation film used in EV battery modules. At the K show in Germany last year, SABIC displayed an Air EV from Lucid Motors. This fast charging luxury EV provides a claimed range of up to 530 miles (around 850km) on a single charge and uses SABIC thermoplastics in more than 25
www.compoundingworld.com
IMAGE: AVIENT/GETTY IMAGES
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64
