对封套材料透湿率影响因素进行了分析，提出了设计封套材料的见解。
Analysis is the influential factor of the moisture permeability of envelop materials, and put forwards the ideas of how to design envelop materials.
研究聚氯乙烯/氯化聚乙烯封套材料的性能，测试封套材料的透湿率、拉伸强度和扯断伸长率。
The properties of the PVC envelop material modified by CPE was investigated, and the moisture permeability, tensile strength and elongation at break were also tested.
在恒温恒湿条件下，湿杯法检测涂料游离涂膜的透汽性，从而建立了一种简捷实用的水蒸气透过率检测方法。
Under the condition of constant temperature and constant humidity, the water vapor penetration rate of the separate coatings film is tested by the wet cup method that is simple and practical.
结果表明，由于蛋白腹为亲水性膜，受环境湿度的影响，其水分含量、分子间作用力有所不同，从而导致蛋白膜的机械性能、透湿性和吸湿率也随之发生变化。
This result showed that the change of relative humidity led to the variation in mechanical properties, water vapor permeability (WVP), oxygen permeability and moisture absorption of the films.
结果表明，由于蛋白腹为亲水性膜，受环境湿度的影响，其水分含量、分子间作用力有所不同，从而导致蛋白膜的机械性能、透湿性和吸湿率也随之发生变化。
This result showed that the change of relative humidity led to the variation in mechanical properties, water vapor permeability (WVP), oxygen permeability and moisture absorption of the films.
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