膜科学与技术

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Preparation of superhydrophobic organic-inorganic composite membrane based on the bionic mechanism

Authors： HAN Peng, JIANG Chudong, ZHOU Yingying, SUN Haixiang, LUAN Yange

Units： Department of Material Physics and Chemistry, College of Science, China University of Petroleum (East China), Qingdao 266580, China

KeyWords： Super-hydrophobic membrane; Nano-silica; Silane coupling; Composite membrane

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2015,35(2):25-29

Abstract：

Organic-inorganic composite microporous membrane was fabricated by phase inversion after PVDF mixed with modified SiO2 according to a weight ratio, in which SiO2 prepared by sol-gel method was modified by low-surface-energy silane coupling agent. The impact of coupling agent types and SiO2 particles size on the hydrophobicity of the microporous film and the microtopography of the film were investigated. Results indicated that the gelation of SiO2 particles were effectively prevented by silane coupling agent with surface energy of SiO2 particles reduced, which had a significant impact on hydrophobicity of membrane; the water contact angle of the composite microporous membrane surfaces with a nicer micro-nano hierarchical structure was up to 151°.

Funds：

中央高校基本科研业务费专项资金资助（14CX05034A）；国家级大学生创新实验（201210425064）

AuthorIntro：

韩鹏（1992-），男，山东济南人，本科生，主要从事高分子膜分离研究。

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