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利用1H,1H,2H,2H-全氟辛基三氯硅烷对SiO_2纳米粒子进行表面改性,制备得到氟硅改性的SiO_2纳米粒子(FS-SiO_2),将其和聚苯乙烯与聚[甲基(3,3,3-三氟丙基)硅氧烷](PMTFPS)的三嵌段共聚物(PS-PMTFPSPS)共混并溶于正己烷溶剂中进行静电喷雾操作。采用接触角测量仪(CAM)、扫描电镜(SEM)考察了所得FS-SiO_2/PS-PMTFPS-PS膜的润湿性能、表面形貌随共混组成的变化。结果表明:FS-SiO_2的引入可显著改善FS-SiO_2/PSPMTFPS-PS静电喷雾膜表面的耐溶剂性能,其对二甘醇的接触角可高达148.2°,而且对水的滚动角也显著降低。
Fluorosilicone-modified SiO 2 nanoparticles (FS-SiO 2) were prepared by surface modification of 1H, 1H, 2H, 2H-perfluorooctyltrichlorosilane on the surface of SiO 2 nanoparticles. (3,3-trifluoropropyl) siloxane] (PMTFPS) triblock copolymer (PS-PMTFPSPS) was blended and dissolved in n-hexane solvent for electrostatic spray operation. The wettability and surface morphology of the obtained FS-SiO 2 / PS-PMTFPS-PS films were investigated by using contact angle measurement (CAM) and scanning electron microscopy (SEM) The results showed that the introduction of FS-SiO 2 could significantly improve the solvent resistance of the FS-SiO 2 / PSPMTFPS-PS electrostatic spray film. The contact angle with diethylene glycol could reach as high as 148.2 ° and the rolling angle of water significantly decreased.