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Thermoplastic resins include polyethylene, polyvinyl chloride, polystyrene, polyamide, polyoxymethylene, polycarbonate, polyphenylene ether, polysulfone, rubber and the like. The advantage of thermoplastic resin is that it is easy to process and shape and has high mechanical energy. The disadvantage is poor heat resistance and rigidity.Thermosetting resin The resin undergoes a chemical change after heating, and gradually hardens into shape.
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