PVC和普通塑料的区别 - 百度知道
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PVC即聚氯乙烯塑料，显然最本质的区别在于塑料内部含有氯元素，所以不能直接接触饮用水或食物，其次由于PVC塑料分子链极性太大，塑性差，所以往往需要添加40%以上的增塑剂（塑化剂），往往也不能直接接触饮用水或食物。 而所谓普通塑料，可能是指LDPE，往往是人畜无害的，但PVC的力学性能 ...
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