高疏水氟化SiO<sub>2</sub>/聚醚砜复合膜的制备与表征

李颖娜; 李悦; 孟丽聪; 叶卉; 张玉忠; 徐行健

doi:10.13801/j.cnki.fhclxb.20180821.006

高疏水氟化SiO₂/聚醚砜复合膜的制备与表征

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⁴

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

基金项目: 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）

详细信息

通讯作者:
张玉忠,博士,教授,博士生导师,研究方向为膜制备及膜分离技术,E-mail:zhangyz2004cn@vip.163.com

中图分类号: TB332;TQ316.6
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出版历程
- 收稿日期: 2018-04-19
- 修回日期: 2018-07-04
- 刊出日期: 2019-03-14

Synthesis and properties of highhydrophobic fluorinated SiO₂/poly(ether sulfone) composite membrane

1.
Department of Environmental and Chemical Engineering, Tangshan College, Tangshan 063000, China;
2.
School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China;
3.
State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China;
4.
Hongquanxili Primary School, Tangshan 063000, China

摘要

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SiO₂/PES（fSiO₂/PES）复合膜。通过ATR-FTIR、XPS、TEM和FESEM等对单侧高疏水fSiO₂/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fSiO₂/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fSiO₂/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4 h时，高疏水fSiO₂/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。
- 聚醚砜 /
- SiO₂ /
- 复合膜 /
- 单侧 /
- 高疏水
Abstract: 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.
- poly(ether sulfone) /
- SiO₂ /
- composite membrane /
- single-side /
- highhydrophobic