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聚氯乙烯和聚乙烯薄膜的鉴别当前，聚氯乙烯和聚乙烯薄膜在农田生产中应用范围很广，但二者各有优缺点，适用时间和地区也不尽相同，生产中应区别使用。我们常用如下方法加以区别。一、看外形聚氯乙烯薄膜较柔软透明，手摸有粘腻感，使用后洗净折叠时易沾粘，不易分开．且...
Identification of polyvinyl chloride and polyethylene film Currently, polyvinyl chloride and polyethylene film in the field of production of a wide range of applications, but both have their own advantages and disadvantages, the applicable time and region are not the same, the production should be used differently. We often use the following methods to make a difference. First, see the appearance of PVC film is soft and transparent, hand touch with a sticky feeling, after use, easy to clean sticky sticky, easy to separate. And ...