| 31. | Elastomers are usually thermosets ( requiring vulcanization ) but may also be thermoplastic ( see thermoplastic elastomer ).
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| 32. | Part of the TPE family of polymers, TPV is the closest in elastomeric properties to EPDM thermoset rubber.
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| 33. | The principal difference between thermoset elastomers and thermoplastic elastomers is the type of cross-linking bond in their structures.
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| 34. | During the heat and pressure process polymerization occurs and this transforms the layers into a high-pressure thermoset laminate.
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| 35. | Thermosets, composites and elastomers can often be examined using only microtomy owing to the insoluble nature of these materials.
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| 36. | Completely avoid hard plastics, as they are likely to be thermoset plastics that just smoke and burn when heated.
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| 37. | Thermosets, however, are made of molecular chains, which are interconnected by covalent bonds to a stable network.
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| 38. | Bullet-resistant glass is usually constructed using polycarbonate, thermoplastic materials, thermoset EVA, and layers of laminated glass.
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| 39. | The development of plastics also accelerated with Charles Goodyear's discovery of vulcanization to thermoset materials derived from natural rubber.
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| 40. | The Mitras Industries Holding venture will be one of Europe's largest producers of thermoset moulded components, the company said.
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