单词	thermoplastic
释义	thermoplastic /θəːməʊˈplastɪk / Chemistry adjective Denoting substances (especially synthetic resins) that become plastic on heating and harden on cooling, and are able to repeat these processes. Often contrasted with thermosetting.It is a thermoplastic material which gets softer with heating and hardens when cooled.... Hot-bar and impulse welding processes are commonly used in the packaging industry to seal plastic bags and join thermoplastic films of 0.5 mm or less. ‘Think of it as thermoplastic rubber that is recyclable and processes like plastic,’ he says. noun (usually thermoplastics) A thermoplastic substance.There are three classes of polymers - thermoplastics, thermosets, and elastomers.... Other scientists made various plaster derivatives, artificial silks, and thermoplastics. Many of these are used as thermoplastics that are shaped and processed by means of injection molding and extrusion.
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