聚偏氟乙烯/TiO_2杂化膜的结构与性能研究  

Study on structure and performance of PVDF/ TiO_2 hybrid membrane

作　　者：朱愉洁[1] 文晨[1] 朱华章[1] 肖长发[1] 

机构地区：[1]天津工业大学材料科学与化学工程学院,天津300160

出　　处：《天津工业大学学报》2008年第3期64-67,共4页Journal of Tiangong University

基　　金：973计划资助项目(2006CB708602);国家自然科学基金资助项目(50673077)

摘　　要：采用溶胶-凝胶原位共混法制备了含不同量TiO2溶胶的聚偏氟乙烯/TiO2杂化膜,并借助X射线衍射(XRD)、扫面电子显微镜(SEM)、红外光谱(FT-IR),从力学性能、水通量、牛血清蛋白截留率、孔隙率和接触角等方面对膜的结构和性能进行了表征.结果显示,掺入适量的纳米TiO2溶胶不仅明显地改善了PVDF膜的微观结构,而且其亲水性、力学性和水通量等性能也获得了提高.The polyvinylidene fluoride （PVDF）/Ti02 hybrid membrane with different amounts of nano-sized TiO2 sol was prepared by sol-gel method. The structure and performance of the membrane were investigated by X-ray diffraction （XRD）, scanning electron microscopy （SEM）, FT-IR spectrum （FT-IR）,mechanics capability, water flux, BSA retention, porosity and contact angle. The hybrid membrane has some improvements in characteristics compared with PVDF membrane. It is found that if appropriate nano-sized TiO2 sol are added, the microstructure of PVDF membrane can be obviously improved and the hydrophilic property, mechanics capability and water flux of the membrane can also be enhanced.

关 键 词：聚偏氟乙烯 纳米TiO2溶胶 杂化膜 亲水性 

分 类 号：TS102.528.1[轻工技术与工程—纺织工程] TQ028.8[轻工技术与工程—纺织科学与工程]