thermoplastics

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thermoplastics

thermoplastics materials that soften or melt when heated and harden when cooled. Thermoplastic polymers consist of long polymer molecules that are not linked to each other. i.e., have no cross-links. They are often supplied as granules and heated to permit fabrication by methods such as molding or extrusion. Thermoplastics include polyethylene, polypropylene, polystyrene, polyester, polyvinyl chloride, acrylics, nylons, spandex-type polyurethanes, and cellulosics.

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thermoplastic

The Oxford Pocket Dictionary of Current English | 2009 | © The Oxford Pocket Dictionary of Current English 2009, originally published by Oxford University Press 2009. (Hide copyright information) Copyright

ther·mo·plas·tic / ˌ[unvoicedth]ərməˈplastik/ Chem. • adj. denoting substances (esp. synthetic resins) that become plastic on heating and harden on cooling and are able to repeat these processes. Often contrasted with thermosetting. • n. (usu. thermoplastics) a substance of this kind.

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