摘要
以聚丙烯腈(PAN)为基体材料,聚酰胺纤维为增强材料,采用热致相分离法制备了聚酰胺纤维增强PAN的中空纤维膜,观察了中空纤维膜的微观结构,并研究了混合稀释剂、PAN及聚酰胺纤维对中空纤维膜性能的影响。结果表明:中空纤维膜表层分子排列致密,分离层存在纤维状孔隙结构;PAN与聚酰胺纤维的相容性良好;混合稀释剂用量为10%(w)时,膜表面润湿性较好;PAN用量为70%(w)时,膜的平均孔径和孔隙率最小;聚酰胺纤维用量为15%(w)时,力学性能最佳。
The hollow fiber membranes were prepared successfully by thermally induced phase separation method with polyacrylonitrile(PAN)as the base material and polyamide as the reinforcing material,whose microstructure were observed.The effects of mixed diluents,PAN and polyamide on the properties of hollow fiber membranes were studied.The results show that dense molecular arrangement is formed on the surface of hollow fiber membrane.Fibrous pore structure exists in separation layer.PAN and polyamide have good compatibility.The wettability of the film surface is better when the dosage of mixed diluent is 10%(w),the average pore size and porosity are the smallest when the dosage of PAN is 70%(w),and the mechanical properties are the best when the dosage of polyamide fiber are 15%(w).
作者
许昆鹏
Xu Kunpeng(Institute of Material Engineering,Changzhou Vacational Institute of Light Industry,Changzhou 213164,China)
出处
《合成树脂及塑料》
CAS
北大核心
2022年第2期42-45,共4页
China Synthetic Resin and Plastics
基金
常州市科技计划资助项目(CJ20190011)
江苏省高等学校自然科学研究面上项目(18KJD430001)。
关键词
聚丙烯腈
聚酰胺纤维
中空纤维膜
热致相分离法
微观结构
polyacrylonitrile
polyamide fiber
hollow fiber membrane
thermally induced phase separation
microstructure
