| Summary: | 碩士 === 淡江大學 === 化學工程與材料工程學系碩士班 === 104 === In this study, ~100 nm spherical hollow silica nanoparticles were synthesized by the sol-gel method at room temperature, and were surface-modifyed. The modification was divided into two parts: (I) 3-(trimethoxysilyl)propylmethacrylate (MSMA) and 1H,1H,2H,2H-perfluorooctyltrimethoxysilane co-modified hollow silica nanoparticles; (II) hexamethyldisilazane (HMDS) modified hollow silica nanoparticles. In the method (I), the composite coatings were prepared using acrylic monomer and hollow silica nanoparticles via spin coating on the PMMA substrate followed by UV-curing. The hollow silica nanoparticles and the acrylic resin have covalent bondings. The contact angle of the coating (SiO2 : fluorosilane = 4.5 : 0.2) was 109o, and average transmittance was 99.1% in the wavelength range of 380 – 760 nm. In the method (II), the poly(methylmethacrylate-co-methacrylate). was dipped on the PMMA substrate followed by dip coating of the sol of hollow silica nanoparticles. The contact angle of 129o, the average transmittance of 86%, and adhesion of 5B of the coating were obtained.
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