基于仿生机理的超疏水有机无机复合膜的制备

膜科学与技术 , 2015, 35(2): 25-29. doi: 10.16159/j.cnki.issn1007-8924.2015.02.005

基于仿生机理的超疏水有机无机复合膜的制备

韩鹏 ^1, , 江春东 ^2, , 周滢滢 ^3, , 孙海翔 ^4, , 栾延戈 ^5,

1.中国石油大学(华东)理学院材料物理与化学系,青岛,266555

2.中国石油大学(华东)理学院材料物理与化学系,青岛,266555

3.中国石油大学(华东)理学院材料物理与化学系,青岛,266555

4.中国石油大学(华东)理学院材料物理与化学系,青岛,266555

5.中国石油大学(华东)理学院材料物理与化学系,青岛,266555

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

关键词：超疏水膜 , 二氧化硅 , 硅烷偶联剂 , 复合膜

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

Keywords： Super-hydrophobic membrane , silica , silane coupling , composite membrane

采用溶胶-凝胶法制备了粒径分布窄、单分散性好的SiO2颗粒,并用低表面能硅烷偶联剂对其进行改性.改性后的SiO2粒子与聚偏氟乙烯(PVDF)按一定的质量比共混,利用相转化法制备了有机无机复合微孔膜.分析了偶联剂种类及SiO2粒径对微孔膜疏水性的影响,探讨了微孔膜表面能对其疏水性能的影响,并对复合膜的微观形貌进行了表征.研究结果表明:硅烷偶联剂可以有效阻止SiO2溶胶的凝胶作用,降低SiO2的表面能,而表面能对膜的疏水性有显著的影响;制备的复合微孔膜具有良好的有机-无机双微观阶层结构,疏水角达到了151°.

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