基于RTIPS法的聚醚砜/TiO_(2)-多巴胺复合微孔膜的制备及过滤性能  

Preparation and Filtration Performance of PES/TiO_(2)-dopamine Composite Microporous Membranes by RTIPS

作　　者：钟文强 曾润鑫 欧萱乐 黄瀚毅 徐睿杰[1] 雷彩红[1] ZHONG Wenqiang;ZENG Runxin;OU Xuanle;HUANG Hanyi;XU Ruijie;LEI Caihong(Guangdong Engineering Laboratory of Energy Storage Materials and Devices,School of Materials and Energy,Guangdong University of Technology,Guangzhou 510006,China)

机构地区：[1]广东工业大学材料与能源学院,广东省储能材料与器件工程实验室,广东广州510006

出　　处：《塑料工业》2023年第3期164-170,共7页China Plastics Industry

摘　　要：基于逆热致相分离(RTIPS)工艺制备聚醚砜(PES)微孔膜,探究纳米TiO_(2)和多巴胺对PES微孔膜分离性能的影响。结果显示,80℃凝固浴工艺下得到的微孔膜均呈现100%海绵结构,复合膜表皮最小孔径为300 nm。添加0.5%纳米TiO_(2)的复合膜(MTN-0.5)对亚甲基蓝的去除率最高,为99.1%,流量恢复率95.3%;额外添加1%多巴胺(MTN-0.5/1)的复合膜对牛血清蛋白(BSA)分离率最高,为82.2%,流量恢复率96.6%。改性后复合膜的防污性能得到明显提高。In this paper,polyether sulfone(PES)microporous membranes were prepared based on reverse thermal-induced phase separation(RTIPS)technology,and the effects of nano TiO_(2) and dopamine on the separation performance of PES microporous membranes were investigated.The results show that the microporous membranes obtained at 80℃show 100%sponge structure,and the minimum pore size is 300 nm.The composite membrane with 0.5%nano-TiO_(2)(MTN-0.5)has the highest methylene blue removal rate(99.1%)and flow recovery rate(95.3%).The composite membrane with additional 1%dopamine(MTN-0.5/1)has the highest separation rate of BSA(82.2%)and flow recovery rate(96.6%).The results show that the antifouling performance of the modified composite film is improved obviously.

关 键 词：逆热致相分离 聚醚砜 防污 微孔膜 海绵微孔 

分 类 号：TQ324[化学工程—合成树脂塑料工业]