ENGINEERING THERMOPLASTICS | MATERIALS
those of the 735 grade mentioned above.). Also new is Vydyne ECO 500, a reinforced, non-halogenated FR PA 66 for use in circuit breakers, power disconnects, and electric and hybrid vehicles. The new grade, currently in development, exhibits a UL 94 V-0 rating at less than 0.4 mm, a glow wire flammability index of 960°C and a comparative tracking index of greater than 600V. It will be available with glass reinforce- ment levels of 15%, 25% and 30%, all grades showing improved flow and reduced plate-out. With its new long chain polyamides 610 and
612, Ascend is diversifying its portfolio beyond grades based on PA 66. Gopal says that these materials are intended for applications that require resistance to calcium chloride and hydrolysis, and where improved elongation is required: battery seals, cable ties, automotive cooling and fuel connectors, and sporting goods are among them. Finally, Ascend now has a whole new range of
materials incorporating a non-silver antimicrobial additive, for applications in healthcare. Gopal says that the additive is incorporated into the backbone of the polymer, which makes it wash-resistant . Material is currently being sampled in moulded parts. At DuPont Transportation & Industrial, Global
Marketing Director Eugenio Toccalino says auto- mobile electrification is an important opportunity for the company. “A lot of the technology we developed in the E&E space, for connectors, for consumer electronics, we are now bringing to automotive,” he says. “We also have a strong presence in safety and insulation, as well as adhesives and speciality lubricants [coming from Dow] and we are bringing it all together.” Toccalino says there will be a big space for engineering thermoplastics in EVs, especially in the transition period to fully electric vehicles when there will be a large number of hybrid vehicles on the road, providing so-called “double content” for materials in and around the internal combustion engine and also the electric motor and battery pack . DuPont’s partnership with Renault Sport Racing
in Formula One, announced in March, will help accelerate introduction of new technologies for automotive into mainstream road vehicles, Toc- calino says. He cites new thermal management systems for lithium ion batteries as one example. Dimensional stability of materials will be very important he says, indicating that this will likely mean that PPAs will be favoured for battery cases. Solvay Performance Polyamides introduced
several new products and services at K2019, including an extended range of orange com-
www.injectionworld.com
pounds for electrical applications, Technyl Blue, and Technyl Max. Technyl Orange is a brand-new range of
fire-resistant products for high-voltage automotive components in electric vehicles, including cables, connectors, charge plugs and sockets, converter housings, sensors and insulators. Many parts are currently made using materials
coloured using masterbatch added during injec- tion, but Gérald Durski, Marketing Director for Solvay’s Performance Polyamides, says pre-com- pounding the colour into the polymer gives more colour stability, as well as compatibility with flame retardant packages; it also enables other features such as laser marking. New grades also show resistance to high heat and fatigue. “In powertrain electrification systems, any live
parts carrying more than 30V AC or 60V DC are a potential electric shock hazard. These parts must be instantly recognisable to alert production line employees, after-sales personnel and car owners,” says Hubert Ruck, Global Director New Mobility for the company. Materials available in RAL 2003 for vehicles in
Europe and RAL 2008/2011 for North America include various halogen-free grades based on Technyl One and Technyl Star technologies, with UL94 V-0 flammability ratings at wall thickness as low as 0.4 mm. Solvay says all grades feature low mould deposit and a comparative tracking index (CTI) of at least 600V. Solvay’s Technyl Blue range has been extended with new grades specifically designed for hybrid and fully electric vehicles (EVs/HEVs). Based on PA 66/PA 610 polymer technology, the new materials are intended for parts in cooling circuits and air-conditioning systems; the range now also includes extrusion grades. “Electrified vehicles present an increased number
of complex interconnected cooling systems,” says Didier Chomier, Global Marketing Manager for Automotive. “We now have all the assets to prove
November/December 2019 | INJECTION WORLD 51 Above:
High-voltage connectors made with Solvay’s Technyl Orange
PHOTO: SOLVAY PERFORMANCE POLYAMIDES
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