湿气渗透率 meaning in English

moisture vapor transmission rate

The properties of polyurethane ionomer were studied , including calorifics , dynamic mechanism and shape memory . comparing to the liner shape memory polyurethane non - ionomer , ionomer has superior effect on shape memory behavior and water vapor permeability especially the water vapor permeability increased from 5 - 8 times of liner smp to 20 - 30 times of ionomers lastly the novel crosslinked shape memory polyurethane was synthesized , which shape recovering temperature were randomly controlled and can completely recover original shape . the properties of polyurethane were studied , including calorifics , dynamic mechanism and shape memory
然后，在此基础上合成了离子型形状记忆聚氨酯材料，对其热性能、动态力学性能、形状记忆性能、透湿气性能进行了研究，并与普通非离子型形状记忆聚氨酯进行了比较，研究发现离子型形状记忆聚氨酯具有更大的软段结晶度、更好的形状记忆性能、更优越的力学性能和透湿气性能，尤其是其透湿气性能有了非常显著的提高，其高温段湿气渗透率是其低温段湿气渗透率的20 30倍，远远大于线型形状记忆聚氨酯的5 8倍。