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首页> 外文期刊>Journal of Applied Polymer Science >Preparation of superhydrophobic nanocomposite fiber membranes by electrospinning poly(vinylidene fluoride)/silane coupling agent modified SiO2 nanoparticles
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Preparation of superhydrophobic nanocomposite fiber membranes by electrospinning poly(vinylidene fluoride)/silane coupling agent modified SiO2 nanoparticles

机译：电纺丝聚（偏二氟乙烯）/硅烷偶联剂改性SiO2纳米粒子的制备超疏水纳米复合纤维膜

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Superhydrophobic nanocomposite fiber membranes were prepared by blend electrospinning of poly(vinylidene fluoride) (PVDF) mixed with silane coupling agent modified SiO2 nanoparticles. The nanoparticles were prepared by the sol-gel method, and the average particle diameter was measured by dynamic light scattering (DLS) and transmission electron microscopy (TEM). The effects of the type of silane coupling agent, such as n-octyltriethoxysilane, vinyltrimethoxysilane (A-171), and vinyltriethoxysilane (A-151), and the mass ratio of the modified silica particles and PVDF on the surface wettability of the composite fiber membrane were investigated. The results indicated that the incorporation of silane coupling agent modified silica particles into the PVDF membrane increased the roughness of the surface and formed micro/nano dual-scale structure compared to the pristine PVDF membrane, which was responsible for the superhydrophobicity and self-cleaning property of the nanocomposite fiber membranes. The value of water contact angle (CA) increased with the increase of the content of modified SiO2 nanoparticles in the nanocomposite membrane, ranging from 149.8 degrees to 160.1 degrees as the mass ratio of modified 170 nm SiO2 with PVDF matrix increased from 0.5:1 to 5:1, indicating the membrane possesses a superhydrophobic surface. (C) 2016 Wiley Periodicals, Inc.
机译：超疏水性纳米复合纤维膜通过共混静电聚制备（偏二氟乙烯）（PVDF）与硅烷偶联剂改性的纳米颗粒的SiO 2混合。 （DLS）和透射电子显微镜（TEM）通过溶胶 - 凝胶方法制备的纳米颗粒，和平均粒径通过动态光散射测量。硅烷偶联剂的种类的影响，例如正辛基三乙氧基硅烷，乙烯基三甲氧基硅烷（A-171），和乙烯基三乙氧基硅烷（A-151），和改性的二氧化硅颗粒的质量比和PVDF的复合纤维的表面的润湿性膜进行了调查。结果表明，相比于原始PVDF膜，这是负责超疏水和自清洁性的硅烷偶联剂改性的二氧化硅颗粒的掺入PVDF膜增加了表面的粗糙度和形成微/纳双尺寸结构的纳米复合材料纤维膜。水接触角的（CA）的值与改性的SiO 2纳米颗粒在纳米复合膜中的含量的增加而增加，范围从149.8度到160.1度的改性为170nm的SiO 2与PVDF基质的质量比为0.5：1增加到5：1，这表明该膜具有超疏水性表面。 （c）2016 Wiley期刊，Inc。

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