出版日期：2015-12-01 00:00:00

著者：Chao-Ching Chang; Zi-Min Lin; Shu-Hui Huang; Liao-Ping Cheng

著錄名稱、卷期、頁數：Journal of Applied Science and Engineering 18(4), p.387-394

摘要：Silica nanoparticles synthesized from tetraethoxysiliane (TEOS) via a solgel process were surface-modified by using 3-(trimethoxysilyl)propyl methacrylate (MSMA) and 1H, 1H, 2H, 2Hperfluorooctyltriethoxysilane (13F). MSMA acted as a coupling agent and a C=C provider, whereas 13F was employed to enhance hydrophobicity. The surface-modified silica particles together with a multi-functional monomer were UV-cured to yield highly transparent thin films (~7 m) on plastic substrates. Both FE-SEM imaging and UVvisible spectroscopy confirmed uniform dispersion of nano-silica in the hybrid thin films. The coating surfaces were extremely smooth, with average roughness over the range 1.02.3 nm based on profilometric measurements. X-ray photoelectron spectroscopy indicated that surface-modified silica particles have migrated to the top surface to reduce the surface energy. Therefore, only a small dosage of 1 mol% (vs. TEOS) was enough to engender surface hydrophobicity with water contact angle of 100. Furthermore, all of the prepared coatings were hard with pencil hardness reached 6H, and they adhered strongly to the poly(methyl methacrylate) substrate according to the peel test.

關鍵字：Colloidal Silica;Hard Coating;UV-curing;Plastic Substrate;Hydrophobic

語言：en_US

ISSN：2708-9975

期刊性質：國外

收錄於：EI

通訊作者：Liao-Ping Cheng

審稿制度：是

國別：USA

出版型式：電子版,紙本