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保鲜膜鉴别PVC和PE
2015/5/6 14:52:18Have read8639


PVC保鲜膜的透明度、拉伸性和黏性都要比PE保鲜膜强。

何鉴别PVC保鲜膜和PE保鲜膜呢？

1.看颜色。整卷颜色泛黄的为PVC材质，白色的为PE。

2.手揉搓。PE保鲜膜一般黏性较差，用手揉搓后容易打开，而PVC保鲜膜则黏性较好，用手揉搓不易展开。

3.烧一下。PE保鲜膜用火点燃后，迅速燃烧，离开火源也不会熄灭；而PVC保鲜膜不易点燃，离开火源后会熄灭，且有刺鼻味。

如果标注是PVC材料或标注不详的，建议消费者不要购买和使用。
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