摘要
采用溶液相分离法制备聚氨酯均质微孔膜,探讨了聚氨酯成膜温度、凝固浴中DMF的含量、水洗温度和时间等制备条件对聚氨酯微孔膜性能的影响。研究结果表明成膜温度为20℃,水洗温度为80℃,水洗时间为3 h左右,凝固浴中DMF含量为20%的条件下得到的聚氨酯微孔膜的透湿性能最佳。
The solution of phase separation was used to make polyurethane homogeneous microporous membrane. Some preparation conditions like the temperature of making polyurethane homogeneous microporous membrane, the content of DMF in the coagulation bath, water temperature and time were discussed on the influence of the membrane performance. The results showed that the temperature of making microporous membrane was in 20 ℃, water temperature of 80 ℃ , water washing time was about 3 hours, the content of DMF in the coagulation bath was 20% , in those conditions the moisture permeability of the polyurethane homogeneous mieroporous membrane .
出处
《皮革科学与工程》
CAS
北大核心
2012年第6期22-25,共4页
Leather Science and Engineering
基金
陕西科技大学研究生创新基金资助
关键词
聚氨酯
微孔膜
透湿性
polyurethane
microporous membrane
moisture permeability
