• 共挤吹塑制品的结构及组成
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共挤吹塑制品的结构及组成

  • 05/06/2018 08:58:27

共挤吹塑制品壁内的各层多数为不同的聚合物,也可是同种(着色与未着色、新料与回料)聚合物。一般说来,可分为三层。(1)基层:基层是多层复合结构的主体,其厚度较大,主要确定制品的强度,刚度与尺寸稳定性等。当然,基层也有一定的功能。基层聚合物常用PE和PP,有时也用PVC, …

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