近年来以气体选择性分离为目的的合成高分子膜的研究取得了巨大的进步。气体分离膜的两个基本性能参数是透气速率J及选择系数α。同一个膜,在较高温度使用时,往往是J值增大,α值下降,因此选择适当地操作温度,以便得到最佳的J-α搭配是很重要的。本文讨论了甲基硅橡胶(MSR)、天然橡胶(NR)、乙丙橡胶(EPR)、聚乙烯(PE)、聚(4-甲基戊烯-1)(TPX)等材料的均质膜或复合膜,在不同温度下的氧、氮透过速率,计算了各种膜材料的氧、氮表观透过活化能,并对其本质进行了探讨。 In recent years, the purpose of selective gas separation for the purpose of the polymer membrane made great progress. The two basic performance parameters of the gas separation membrane are the gas permeation rate J and the selection coefficient α. The same film, when used at higher temperatures, tends to have an increased J value and a lower alpha value, so it is important to choose the proper temperature for the best J-α match. This article discusses homogeneous membranes of materials such as methyl silicone rubber (MSR), natural rubber (NR), ethylene propylene rubber (EPR), polyethylene (PE), poly (4-methylpentene-1) Or composite film, the oxygen and nitrogen permeation rates at different temperatures were calculated, and the apparent activation energy of oxygen and nitrogen of various film materials were calculated and their essences were discussed.