AUTOMOTIVE | COMPOUNDS FOR EVs
with the purchase of Eurostar Engineering Plastics, a France-based compounder with a broad portfolio of flame-retardant engineered plastics and expertise in halogen-free formulations. “Eurostar’s experience in compounded polyamides fits well within our own portfolio and manufacturing capabilities,” says John Saunders, Ascend’s Vice President for Europe. “Their Starflam materials are enabling the transitions to clean energy and transportation and smarter devices.” Ascend, which claims to be the largest fully
Above: Sensors for automated driving systems require low cost radar
absorbing and EMI shielding polymer solutions, says Witcom
says it is now looking at ways to improve long-term durability and optimised process conditions to reduce treatment times. The latest additions to the Fibremod Carbon PP
range from Borealis are low density grades offering improved surface appearance and better dimensional stability. The Fibremod line was originally developed in 2016; these second-gener- ation Fibremod Carbon grades are said to retain the stiffness and durability of the original com- pounds but offer improved aesthetic. Fibremod CG210SY has a 20% carbon fibre content, while Fibremod CD211SY is a hybrid concept made with 10% talc and 10% carbon fibre. Both of the new grades provide high flow and good paint adhesion, making them suitable for use in automotive structural parts and body panel applications, including fenders and tailgate skins. In January this year, Ascend Performance Materials bolstered its position in the EV sector
integrated producer of polyamide 66 resin, acquired the Italian firms Poliblend and Esseti Plast last year to give it a full portfolio of UL yellow card certified flame-retardant, as well as water contact and thermally conductive, engineered plastics. The company says these materials will play an integral role in e-mobility, as well as in smart appliances, industrial automation and consumer electronics.
Fast reactions
Customised speciality plastics compounder Witcom Engineering Plastics believes the ever-changing requirements of the EV industry means there is a need to be able to react quickly. “Even though new requirements for EV cars are not all known or set by Tiers and OEMs yet, our agility and material know-how help us build new solutions quickly together with our customers,” says Christine Van Bellingen, Business Development Manager, Conductive Compounds. “Metal replacement for weight reduction, coupled with electrification and digitalisation, open new opportunities for EMI shielded plastics
Taking on the PA corrosion challenge
One of the challenges in long term heat stabilisation of polyamides used in electrical applications is prevention of corrosion of metal contact surfaces. Bruggolen TP-H2062 is the latest metal and halide-free heat stabiliser from Germa- ny’s Brüggemann that is claimed to provide electrical- ly-neutral stabilisation over a temperature range of 120-170 °C. Available as a dust-free master-
batch, TP-H2062 maintains the mechanical and electrical properties of the PA compound, such as com-
74 COMPOUNDING WORLD | April 2021
risk while exceeding the limits of phenolic-based antioxidant systems, which the company says typically lose effectiveness beyond 150 °C. “With our new Bruggolen
TP-H2062 we are now able to offer a highly efficient and cost competitive product, satisfying an urgent need of the industry. It is a powerful
parative tracking index (CTI). Accord- ing to the company, the additive provides the long term protection expected from copper iodide technol- ogy without the associated corrosion
addition to our heat-stabiliser portfo- lio for E&E applications,” says Dr Kristina Frädrich, Product Manager Polymer Additives at Brüggemann. �
www.brueggemann.com
www.compoundingworld.com
IMAGE: SHUTTERSTOCK
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