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DSM Arnite® Hydrolyzed PBT Becomes the New Favorite of Automotive Electronics Applications
Time:2019-02-15

The Royal Dutch DSM Group, a global science company active in the fields of health, nutrition and materials, has developed a new Arnite® hydrolysis-resistant PBT series for the automotive electronics industry's new challenges in temperature and flame retardancy. New developments in the industry provide strong material support.



With the maturity of new energy vehicles and autonomous driving technologies, the demand for automotive electronic materials is increasing and the requirements are becoming more stringent. For example, traditional automotive electronic materials are basically free of flame retardant requirements, while electronic materials used in new energy vehicles are required to achieve flame retardant levels. This poses a problem for OEMs, automotive electronic component manufacturers and material suppliers.


In addition, both new energy vehicles and driverless vehicles use more electronic components than conventional vehicles, and the heat dissipation is also greater. The continuous operation time and the peak temperature of the engine environment continue to rise, thus putting more emphasis on the temperature resistance of the materials. High requirements.


In the past, materials used in the automotive electronics industry included nylon single 6, nylon double 6 and ordinary PBT materials, and these materials have been unable to meet the new challenges of the automotive electronics industry.


In order to meet the market's more stringent requirements for automotive electronic materials, the Royal DSM Group has developed a new Arnite® hydrolysis-resistant PBT with a 30% glass fiber reinforced formulation that makes the material excellent at 150 °C. performance. In addition, the Arnite® hydrolysis-resistant PBT series also includes flame-retardant grades up to 0.4 mm UL94 V0 flame retardant grade, which fully meets the new material requirements for automotive electronic components such as automotive connectors, control equipment and sensors.



Although PBT has long been one of the common materials in the automotive electronics industry, its water-decomposability has been greatly limited in its application. Not only that, but when customers are doing PBT injection molding, they also need to carry out very strict drying operations on the materials to ensure the quality and performance of the injection molded parts. The new Arnite® hydrolysis-resistant PBT product is superior to other PBT in many respects, but its most significant advantages are: USCAR Standard 3, 4, 5 Type Temperature/Humidity Environment and Dual 85 Wet Heat Cycle Test (85°C and 85%) Under the relative humidity), its mechanical properties have a good retention rate for up to 3000 hours.


Ms. Zhanhong, Product Manager of DSM Greater China, said: “Arnite® hydrolysis-resistant PBT complements the short plate of PBT water-decomposing, which simultaneously meets the temperature, humidity and resistance of materials in the automotive electronics industry. At the same time, our products are superior to almost all similar products in terms of fluidity and crystallization speed, saving production cycle time and maintaining good mechanical properties throughout the life of electronic components."


The Arnite® hydrolysis-resistant PBT family is constantly adding new members, including different levels of fiberglass reinforcement, impact modification grades, and product grades with better silicone sealant properties to meet automotive electronic components in a variety of applications. Different requirements for materials under working conditions and meeting higher strength testing and verification standards in the future.


In addition, in automotive electronics applications, DSM can also provide high-temperature, high-temperature resistant polyamide materials such as Stanyl® PA46 and ForTii® PA4T, which make DSM the world's few automotive electronics. One of the plastic suppliers that offer a comprehensive product portfolio.


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