The influences of PU mass fraction and the time of repose on the moisture vapor permeability of PU thin membranes were studied.
试验结果表明，随着质量分数的增加，聚氨酯薄膜的透湿量逐渐减小；
Air permeability, water vapor permeability, moisture absorption, heat preservation and antimicrobial ability are the main performance indicators of hygienic property of leather shoes.
透气性、透水汽性、吸湿性、保暖性、抗菌性等是皮鞋卫生性能的主要指标，分析了皮鞋上述几方面指标国内外的研究现状和发展趋势。
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.
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。
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