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抗拉聚乙烯薄膜瑞士最近研制成一种聚乙烯抗拉薄膜，即使在—１８℃它仍保持良好的均匀抗拉性能，因而适用于包装各种邮寄物品。这种薄膜比重仅为０．９２３克／厘米３。是在１９３～２１８℃高温下，用高压聚乙烯压制而成。在压制过程中加入一定量的聚合物作添加剂。这种...
Tensile Polyethylene Film Switzerland recently developed a polyethylene tensile film that retains good uniform tensile properties even at -18 ° C and is therefore suitable for packaging various mail items. The specific gravity of this film is only 0.923 g / cm3. Is in the high temperature of 193 ~ 218 ℃, made of high pressure polyethylene. In the suppression process by adding a certain amount of polymer as an additive. This ...