摘要
采用γ-甲基丙烯酰氧基丙基三甲氧基硅烷(A-174)水解缩合反应合成超支化聚硅氧烷(HPSi O),并用其改性聚偏氟乙烯(PVDF)制备疏水HPSiO-PVDF微孔膜。通过红外光谱、核磁共振、水接触角、孔隙率、孔径分布、力学强度等表征方法研究了所制膜的结构和性能,以及微孔膜膜蒸馏性能。结果表明,HPSiO的加入降低了膜孔径,提高了微孔膜的孔隙率、疏水性能、力学性能及真空膜蒸馏性能。
The precursor hyperbranched polysiloxane（HPSiO） was synthesized by hydrolysis condensation reaction of gamma-methacryloxy propyl trimethoxyl silane（A-174）, and used to modify polyvinylidene fluoride. As a result, the superhydrophobic FIPSiO-PVDF microporous membranes were formed. The microporous membranes were characterized by FT-IR, 1H-NMR, water contact angle, pore size distribution, and mechanical property. In addition, the performances of membrane distillation for the resulting memmbranes were studied. The results show that, when HPSiO is added, the average pore diameter decreases; the membrane porosity, hydrophobic, mechanical property and the performance of vacuum membrane distillation increase.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2017年第3期6-11,共6页
Polymer Materials Science & Engineering
基金
吉林省科技厅重点科技攻关项目(20150204031GX)
关键词
超支化聚硅氧烷
聚偏氟乙烯
微孔膜
膜蒸馏
hyperbranched polysiloxane
polyvinylidene fluoride
microporous membrane
membrane distillation
