Engineering Materials

Engineering materials is a discussion led by Design News Contributing Materials Editor Doug Smock on important new developments and applications that affect mechanical design. Metals covered include all types of steel and nonferrous metals, in all shapes. Resins covered include nylons, polycarbonates, polysulfides, polyimides, and polybutylene terephthalate (PBT). Other materials covered include ceramics and rubber. Topics covered include materials enhancement, new applications, process technology, tooling, sustainability, and economic issues. Posts will include latest news from global events such as K 2007, the Alliance of Plastics Processors Annual Conference, the National Plastics Exposition, and the annual technical conference (ANTEC) of the Society of Plastics Engineers.

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Monday, June 4, 2007

EURO-5 Drives New Auto Plastic Development

New EURO-5 exhaust gas standards, which will take effect in 2008, will push several automotive plastics applications toward high-end materials. “Alternative fuels, concentrated blow-by gases in mechanical separators as well as ammonia solution used for treating exhaust gases have a highly aggressive effect on seals and molded pars,” comments Klaus Bender, DuPont’s automotive market development manager. DuPont is developing HTN polyphthalamide (PPA) grades for specific applications that will meet the tougher requirements. Also under development are extrudable nylon 66 grades with improved thermal performance.

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