【摘要】 本文研究了以低密度聚乙烯为主，辅以聚苯乙烯和聚丙烯等，再加入适当的添加剂，制备透气性塑料薄膜的配方和工艺。实验结果表明，以两种各具加工和使用性能而相容性又较差的树脂共混，在薄膜中引入无数微小的缺陷，加入添加剂后薄膜中形成细微通孔，可制得透气性能与报纸相比的透气性塑料薄膜。更多还原

【Abstract】 This article deals with the formulation and technolkgy of the penetrable plastic film by using low density polyethylene as amain part, polystyrene and pliypropylene etc. and some proper additives as facilities. The experimental results show that the air penetration rate of the film can reach 1/4～1/2 that of news papers, when two hardly compatible polymers are blended, introducing numerous microdefects and additives make microgoles in the film.更多还原