Hydrolysis-resistant polyester

  • 05-Aug-2013 02:08 EDT

Arnite A-X07455 from Royal DSM is the first high-performance polyethylene terephthalate (PET) engineering plastic that is highly resistant to hydrolysis, the company claims. According to Royal DSM, the development of this material opens up opportunities for weight and cost benefits over metal in engine compartment applications. Arnite A-X07455 enables substitution of metals or higher-cost engineering plastics such as polyphthalamides and polyphenylene sulphide in parts that require high dimensional accuracy, good chemical resistance, and very good mechanical properties. In addition to cost savings, Arnite A-X07455 will allow manufacturers to improve fuel efficiency through lightweighting. It is targeted at a variety of underhood applications, including throttle valve bodies, sensors, air control valve housings, electronic throttle control, exhaust gas recirculation (EGR) covers, and ignition systems. Arnite A-X07455, which contains 50% glass reinforcement, has a tensile stress at break of 200 MPa, according to ISO 527.

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