高疏水氟化SiO_2/聚醚砜复合膜的制备与表征  

Synthesis and properties of highhydrophobic fluorinated SiO_2/poly(ether sulfone)composite membrane

作　　者：李颖娜[1,2,3] 李悦[1] 孟丽聪[1] 叶卉[2,3] 张玉忠[2,3] 徐行健 LI Yingna;LI Yue;MENG Licong;YE Hui;ZHANG Yuzhong;XU Xingjian(Department of Environmental and Chemical Engineering, Tangshan College,Tangshan 063000, China;School of Materials Science and Engineering. Tianjin Polytechnic University,Tianjin 300387, China;State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University,Tianjin 300387, China;Hongquanxili Primary School, Tangshan 063000, China)

机构地区：[1]唐山学院环境与化学工程系,唐山063000 [2]天津工业大学材料科学与工程学院,天津300387 [3]天津工业大学分离膜与膜过程省部共建国家重点实验室,天津300387 [4]唐山市龙泉西里小学,唐山063000

出　　处：《复合材料学报》2019年第3期715-722,共8页Acta Materiae Compositae Sinica

基　　金：国家自然科学青年基金(51503146);河北省科技计划项目(13273707;16211243;18271238);河北省唐山市科技计划项目(14130238B;18130221a);唐山学院项目(hhx2018003)

摘　　要：以正硅酸乙酯(TEOS)和全氟癸基三乙氧基硅烷(PFDTES)为混合Si源,以聚醚砜(PES)为基膜材料,通过真空过滤和热处理工艺制备单侧高疏水氟化SiO_2/PES(fSiO_2/PES)复合膜。通过ATR-FTIR、XPS、TEM和FESEM等对单侧高疏水fSiO_2/PES复合膜进行表征,考察PFDTES修饰量和热处理条件对膜疏水性能的影响,并评价fSiO_2/PES复合膜的疏水稳定性能。结果表明,当PFDTES∶TEOS的质量比为3时,高疏水fSiO_2/PES复合膜的疏水性能较好(接触角为131.5°);当热处理温度为100℃,热处理时间为4h时,高疏水fSiO_2/PES复合膜表面的接触角为138.9°,且其对不同pH值的溶液都有良好的疏水性能。A single-side highhydrophobic fluorinated silica/poly(ether sulfone)(fSiO2/PES)composite membrane was prepared by vacuum-filtrating with tetraethoxysilian(TEOS)and perfluorodecyltriethoxysilane(PFDTES)as the silica source.The chemical component and morphology of the single-side highhydrophobic fSiO2/PES composite membrane was examined by ATR-FTIR,XPS,TEM and FESEM,individually.The effects of PFDTES modification amount and the heat treatment condition on membrane hydrophobicity were investigated,and the hydrophobic stability of fSiO2/PES composite membrane was evaluated.The results show that the water contact angle of the single-side highhydrophobic fSiO2/PES composite membrane is 131.5°when the mass ratio of PFDTES∶TEOS is 3.The water contact angle of the single-side highhydrophobic fSiO2/PES composite membrane is 138.9°,as the heat treatment temperature is 100℃ and the heat treatment time is 4 h.In addition,the single-side highhydrophobic fSiO2/PES composite membrane exhibits excellent hydrophobic stable performance.

关 键 词：聚醚砜 SIO2 复合膜 单侧 高疏水 

分 类 号：TB332[一般工业技术—材料科学与工程] TQ316.6[化学工程—高聚物工业]