化工进展2017，Vol.36Issue(2)：652-657,6.DOI:10.16085/j.issn.1000-6613.2017.02.035
基于硅烷偶联剂表面改性制备Al2O3/PVDF杂化膜
Preparation of Al2O3/PVDF hybrid membrane from surface-modified silane coupling agent
摘要
Abstract
Nano-Al2O3was surface-modified by silane coupling agent (2-cyanogen ethyl) triethoxysilane, with which the modified Al2O3/PVDF organic-inorganic hybrid membrane was prepared by thermally induced phase transition. Effect of the dosage of the modified Al2O3 on the performance of the hybrid membrane was examined. After modified by (2-cyanogen ethyl) triethoxysilane,the number of nano-Al2O3 particle clusters was reduced,and the averaged minimum size of nano-Al2O3 particles decreased to 52.23nm.The addition of modified nano-Al2O3improved the morphology of hybrid membrane,compared with the pure PVDF membrane,the spherulite density increased and the spherulite size of hybrid membrane became smaller,and a lot of holes through the interface were formed,resulting in the increased membrane porosity. The hydrophilicity,mechanical properties and rejection of PVDF membrane were improved greatly with the addition of modified Al2O3. When the amount of Al2O3was more than 5%,the rejection of the film increased by 7.2%,and the pure water flux of the modified Al2O3/PVDF membrane was 593.95L/(m2·h),and mechanical strength of hybrid membrane reached 5.0MPa.关键词
硅烷偶联剂/表面改性/聚偏氟乙烯/超滤膜Key words
silane coupling agent/surface modification/polyvinylidene fluoride(PVDF)/ultrafiltration membrane分类
通用工业技术引用本文复制引用
朱子沛,汤旭,何其,董浩,朱良,肖凯军..基于硅烷偶联剂表面改性制备Al2O3/PVDF杂化膜[J].化工进展,2017,36(2):652-657,6.基金项目
广东省科技装备动员项目（x2skB2160440）、广东省应用型科技研发专项资金项目（2015B020230001）及广州市产学研协同创新重大专项项目（201508020086）。 （）
