正交实验法优化氯甲基化聚砜/聚砜共混膜的季铵化条件  

Optimization of quaternization conditions of chloromethylated polysulfone/polysulfone blend membrane by orthogonal design

作　　者：谭翎燕[1] 李惠玲[1] 张景亚[1] 张浩勤[1] 刘金盾[1] 

机构地区：[1]郑州大学化工学院,河南郑州450001

出　　处：《工业水处理》2008年第11期30-32,共3页Industrial Water Treatment

基　　金：国家自然科学基金(20676125)

摘　　要：将氯甲基化聚砜（CMPSF）／聚砜（PSF）共混膜浸于三甲胺溶液中制得季铵化聚砜（QMPSF）／聚砜（PSF）膜。采用正交实验考察了季铵化反应条件如季铵化温度、季铵化时间、三甲胺浓度等对QMPSF／PSF膜性能的影响．优化了季铵化条件，制得了性能较佳的季铵化QMPSF／PSF膜。研究结果表明，在0．2MPa压力下，制备的季铵化QMPSF/PSF膜的水通量为31．35U（m^2·h），对相对分子质量为31000—50000的聚乙烯醇溶液的截留率为89．6％。The quaternized polysulfone（QMPSF）/polysulfone（PSF） membrane has been prepared through dipping chloromethylated polysulfone （CMPSF）/polysulfone （PSF） blend membrane into trimethylamine solution. The effects of quaternized reaction conditions such as quaternization temperature, quaternization time, concentration of trimethylamine solution etc. on the performance of QMPSF/PSF membrane have been investigated by orthogonal design. The quaternization conditions are optimized. The quaternized QMPSF/PSF membrane with good performances has been prepared. The experimental results shows that under the operating pressure of 0.2 MPa, the water flux of the quaternized QMPSF/PSF membrane is 31.35 L/（m^2 ·h）, while the retention of polyvinyl alcohol（PVA, relative molecular mass 31 000-50 000） is 89.6%.

关 键 词：氯甲基化聚砜 季铵化聚砜膜 超滤膜 

分 类 号：TQ028.8[化学工程]