摘要
采用L-S相转换法,以聚砜为成膜材料,PVP为成孔剂,丙酮为添加剂,对成膜工艺条件进行研究,最终优化后工艺参数为:铸膜液流速14.2~14.6 g/min;芯液中DMAc的含量为20%,芯液流量控制在17 ml/min;干纺程为10 cm,外凝胶浴温度40℃时,纺制的中空纤维膜厚度较好,内径约为0.7 mm,外径约为1.0 mm,膜的纯水通量在0.1 MPa时可达110 L/m2.h,膜对分子量为2.2~2.6万的PVA溶液的截留率可达90%以上。
Using L-S conversion law,take polysulfone membrane as material,PVP as the pore-forming agent,Acetone as additives on the conditions of film study,After the final optimization,the process parameters are as follows:casting solution flow control is 14.2 to 14.6 g/min;DMAc solution of the core content is 20%,Core liquid flow is controlled in 17 ml/min;dry-spinning path is 10 cm,the temperature is bath gel 40 ℃,spinning hollow-fiber membrane thickness is quite good,internal diameter is about 0.7 mm,external diam...
出处
《河北理工大学学报（自然科学版）》
CAS
2009年第1期72-75,共4页
Journal of Hebei Polytechnic University:Social Science Edition
关键词
聚砜
芯液
外凝胶浴
干纺程
polysulfone
Liquid Core
External bath gel
dry-spinning path
