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  • TPV avoids the voids
    Thermoplastic vulcanizates (TPVs) are known for giving a resilient, soft touch to automotive interiors. But the molding of new console liners and cupholder inserts for 2003 Ford Expeditions and Lincoln Navigators posed difficulties for designers. Tools for conventional TPVs wouldn't let air escape
  • Electricity from light gets hot
    nanoholes that emit intense light at specific wavelengths when heated to temperatures around 2,200 F. Photodiodes tuned to the frequency of the light turn escaping photons into electricity through a process called thermophotovoltaic (TPV) conversion. Special filters let only the most usable wavelengths
  • New resins make their debut at NPE 2000
    Air-intake ducts are now made from Forprene, a PP/EPDM TPV. The TPVs were developed in Italy by So.F.teR, but are now available in the U.S. through a joint venture with M.A. Hanna Co. A new family of thermoplastic-metal composites, Polymetals, are poised to replace lead and other high-gravity
  • Blow-moldable TPVs give silicone rubbers the boot
    limitation: Heat resistance below 284°F (140°C). This has kept them out of many high-temperature automotive boots, bellows, and ducts, though these part shapes are ideal candidates for blow molding. A recently developed thermoplastic vulcanizate (TPV), Zeotherm 120-90B, from Louisville, Ky., survives
  • How to develop a soft touch
    Designers under the gun to eliminate assembly and secondary operations are taking a hard look at multicomponent injection molding a process best known for putting nonslip grips on handheld consumer goods. The first load-bearing trim piece is made from a TPV overmolded reinforced nylon. The part
  • Soft grip overmold takes the abuse
    such as styrene ethylbutylene styrene (SEBS) and thermoplastic vulcanates (TPV). Tear strengths for typical TPVs and SEBSs range from 150 to 250 and 80 to 150 pli, respectively. The material also maintains a highly resilient "soft " feel in extremely cold temperatures. The soft Estagrip TPEs adhere well

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