发布时间:2025-02-05 13:56:29
所有的高分子材料都对应了其本身的熔点或玻璃化转化温度(Tg)。一些semi-crytalline的高分子同时拥有熔点和Tg。所以所有的高分子化合物都是相变材料。常见的是聚乙烯PE,聚丙烯PP,聚氯乙烯PVC,PET,PEO,PVP等,其中有水溶性的,有非水溶性的。大部分高分子材料的应用是先使其融化或变软,在定型。所以使用温度一般要高于高分子本身的Tg或熔点
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