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Thermoplastic Elastomer |
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thermoplastic elastomer [¦thər·mə‚pla·stik i′las·tə·mər]
(organic chemistry) A polymer that can be processed as a thermoplastic material but also possesses the properties of a conventional thermoset rubber. Abbreviated TPE. Thermoplastic Elastomer a synthetic polymer that has the properties of a rubber at ordinary temperatures but, like thermoplasts, softens at higher temperatures. Thermoplastic elastomers have such a combination of properties because they are block copolymers. In the macromolecules of such substances, elastic units, such as polybutadiene, alternate in a specific sequence with thermoplastic units, such as polystyrene. In the processing of thermoplastic elastomers to produce rubber items—for example, footwear—the vulcanization stage is skipped; this is not the case with natural rubbers. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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