Hydrophobic modification of PVDF hollow fiber membranes using polydimethylsiloxane for VMD process

被引：0
作者：
Cui, Zhaoliang [1 ]
Tong, Daqing [1 ]
Li, Xue [1 ]
Wang, Xiaozu [1 ]
Wang, Zhaohui [1 ]
机构：
[1] Nanjing Tech Univ, Coll Chem & Chem Engn, State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Jiangsu, Peoples R China
来源：
MEMBRANE WATER TREATMENT | 2019年 / 10卷 / 04期
基金：
中国国家自然科学基金;
关键词：
poly(vinylidene fluoride) membrane; polydimethylsiloxane; hydrophobic modification; vacuum membrane distillation; HYDROPHOBIC/HYDROPHILIC COMPOSITE MEMBRANES; SOLVENT-RESISTANT NANOFILTRATION; DISTILLATION; PERVAPORATION; DESALINATION; WATER; PDMS; DILUENT;
D O I：
10.12989/mwt.2019.10.4.251
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Fabricating hydrophobic porous membrane is important for exploring the applications of membrane distillation (MD). In the present paper, poly(vinylidene fluoride) (PVDF) hollow fiber membrane was modified by coating polydimethylsiloxane (PDMS) on its surface. The effects of PDMS concentration, cross-linking temperature and cross-linking time on the performance of the composite membranes in a vacuum membrane distillation (VIVID) process were investigated. It was found that the hydrophobicity and the VIVID performance of the PVDF hollow fiber membrane were obviously improved by coating PDMS. The optimal PDMS concentration, cross-linking temperature and cross-linking time were 0.5 wt%, 80 degrees C, and 9 hr, respectively.
引用
收藏
页码：251 / 257
页数：7
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