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；
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；
应用推荐