TECHNOLOGY | COMPOUNDS FOR EVs
USB Type-C standard and designed to provide faster data transmission in automotive electronic devices. The company says the system enables space saving of up to 60% compared to standard USB ports, providing a data transfer rate of greater than 10GB/s and optional USB power delivery. According to MD Elektronik, its aim was to
Above: BASF supplied a glass fibre reinforced Ultradur PBT for this MD Elektronik high speed data connector for EVs
comparative trace index (CTI) values. Tislamid A 30 D03 K02 F02 R01, for example, is a 30% glass reinforced heat stabilised PA6 that displays a good balance between mechanical strength and stiffness and is said to be well suited for battery components. Tislamid B 30 D11 K02 HS R01 is a new compound based on PA66 reinforced with carbon fibre for use in electric motor parts, while Tislamid B 30 D11 K02 HS R01 has good mechanical performance and thermal stability for electric vehicle applications. Tisan says it is also able to address problems such as water absorption and loss of insulating properties for high voltage parts used in harsh environments through its Tisester compound line. Tisester F 30D03 F01 K02 HS R01, for example, is based on glass fibre reinforced, heat stabilised and flame retardant PBT and is described as a good choice for connectors. With EV developers looking to use ever higher voltage power systems, DSM Engineering Materials recently announced it was to upgrade its comparative tracking index (CTI) test laboratory. The company says it will be able to support manufacturers in increasing the voltage of electric vehicle batteries safely, which will enable them to shorten charging times. Long charging times, the company says, remain
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a key barrier to the wider adoption of electric vehicle. Shortening charging times requires higher battery voltages of 1,000V or above. DSM says to enable this ultra-fast charging at the required safety and reliability levels, will require plastic compounds with improved insulation and resistance to high voltages. The DSM CTI test laboratory will have equipment to validate tracking resistance to voltages up to 1,500V AC and 1,000V DC. Ultradur B 4300 G4, a glass fibre-reinforced PBT
from BASF, is being used by MD Elektronik for a new connector system – C-KLIC — based on the
COMPOUNDING WORLD | April 2022
produce as many individual parts of the connector system as possible with one material. It says this simplifies processing, is more efficient, and contrib- utes to sustainability by reducing the number of material changes on the production machines. Amodel Supreme PPA is a new line of high-per- formance polyphthalamide (PPA) compounds from Solvay designed for demanding e-mobility and metal replacement applications. The company says the Supreme grade is aimed at systems requiring good thermal, mechanical and electrical proper- ties. Applications include high-temperature automotive components used in electric drive units such as e-motors, power electronics, housings for high-temperature electrical connectors, and electric and electronic devices. Solvay adds that the compound offers the
stiffness and toughness required to replace metal in more traditional and structural automotive applications, including body in white. Features include a glass transition temperature of 165°C, which enables higher mechanical performance versus traditional PA4T and PA6T-based materials at elevated temperatures. The compound also offers a closer coefficient of linear thermal expan- sion (CLTE) match to metals, which can simplify design of overmoulded components. As well as its good thermo-mechanical perfor-
mance, Amodel Supreme PPA is claimed to offer improved electrical properties, including volume resistivity and dielectric strength above 150°C. The materials are also said to maintain critical electrical properties, such as comparative tracking index (CTI), after exposure to high temperatures over extended periods.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.wittenburggroup.com �
www.evonik.com �
www.sabic.com �
www.covestro.com �
www.emsgrivory.com �
www.lanxess.com �
www.lati.com �
www.tisan.com.tr �
www.dsm.com/engineering-materials �
www.basf.com �
www.solvay.com
www.compoundingworld.com
IMAGE: BASF
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