超疏水超亲油玻璃纤维过滤膜的制备及其乳化水分离效率  

Preparation of Superhydrophobic and Superoleophilic Glass-fiber Membrane and Its Emulsified Water Separation Efficiency

作　　者：徐卜琴 赵宗倩 徐桂龙[1,2] 杨进[1] 梁云[1,2] 胡健[1,2] XU Buqin;ZHAO Zongqian;XU Guilong;YANG Jin;LIANG Yun;HU Jian(State Key Lab of Paper Engineering,South China University of Technology,Guangzhou 510640,China;Filtration and Wet Nonwoven Composite Materials Engineering Research Center of Guangdong Province,South China University of Technology,Guangzhou 510640,China)

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广州510640 [2]华南理工大学广东省过滤与湿法无纺布复合材料工程研究中心,广州510640

出　　处：《硅酸盐学报》2018年第8期1173-1177,共5页Journal of The Chinese Ceramic Society

基　　金：广东省科技计划项目(2015B090925003);制浆造纸国家重点实验室开放基金项目(201834)

摘　　要：通过溶胶-凝胶法,以MTES（甲基三乙氧基硅烷）为前驱体,在玻璃纤维（玻纤）过滤膜表面直接进行水解缩合反应,制备具有高效油水分离功能的玻纤过滤膜材料。通过扫描电子显微镜和红外光谱分析MTES处理前后玻纤过滤膜的微观形貌与表面组成的变化,并通过接触角仪测试玻纤过滤膜的接触角,采用Karl Fischer水分仪测试玻纤过滤膜的油水分离效率。结果表明：经过MTES处理后,玻纤过滤膜的微观孔隙结构不变,而纤维表面布满疏水亲油的–CH3基团和纳米凸起结构,处理后的玻纤过滤膜有超疏水超亲油性能,玻纤过滤膜对乳化水的油水分离效率可以达到96.09%。An oil-water separation glass-fiber membrane was prepared by a simple sol-gel process using triethoxymethylsilane（MTES） as a precursor. Methyl groups were grafted and hydrophobic nano-pillars were formed onto the surface of glass-fiber in a sol-gel process, thus producing a glass-fiber membrane with super-hydrophobicity and super-oleophilicity. The micro-morphology and surface chemical composition of the glass-fiber membrane were characterized by scanning electron microscopy and Fourier transform infrared spectroscopy, respectively. The wetting behavior of the treated membrane was examined by a water/oil contact angle method. The oil-water separation efficiency was determined by the Cou-Lo Aquamax. The results show that the pore size of the glass-fiber membrane is similar before and after MTES treatment, while hydrophobic –CH3 groups and nano-pillar particles are formed on the surface of treated glass-fiber. The treated glass-fiber membrane exhibits super-hydrophobicity and super-oleophiliciy, and its emulsified water removal efficiency is 96.09%.

关 键 词：甲基三乙氧基硅烷 玻纤过滤膜 超疏水 亲油 乳化水分离 

分 类 号：TB34[一般工业技术—材料科学与工程]