Preparation of hydrophobic nanosilica-filled polyacrylate hard coatings on plastic substrates
學年 102
學期 2
出版（發表）日期 2014-05-01
作品名稱 Preparation of hydrophobic nanosilica-filled polyacrylate hard coatings on plastic substrates
作品名稱（其他語言）
著者 Chao-Ching Chang; Tai-Yueh Oyang; Yu-Chen Chen; Feng-His Hwang; Liao-Ping Cheng
單位
出版者
著錄名稱、卷期、頁數 Journal of Coatings Technology and Research 11(3), pp.381-386
摘要 Colloidal silica nanoparticles synthesized from tetraethoxysilane via a sol–gel process were surface-modified first by 3-(trimethoxysilyl)propyl methacrylate, and then by trimethylethoxysilane (TMES). The former agent acts both as a coupling agent and as a C=C provider, whereas the latter agent is used to prevent particle aggregation and to increase hydrophobicity of the coating. The modified silica particles were UV-cured together with the monomer, 2-hydroxyethyl methacrylate (2-HEMA), and the crosslinking agent, dipentaerythritol hexaacrylate (DPHA), to form highly transparent hard coatings on plastic (PMMA and PET) substrates. Both differential scanning calorimetric and thermal gravimetric analyses of the hybrid materials indicated enhanced thermal stability with respect to the neat HEMA–DPHA copolymer. Furthermore, due to the incorporation of TMES, hydrophobicity of the hybrid coating increased considerably with increasing modified silica content. In the extreme case, an antiabrasive hard coating (7H on PMMA) with a water contact angle of 99 was obtained at the silica content of 15 wt%.
關鍵字 Colloidal silica;Hard coating;UV-curing;Plastic substrate;Hydrophobicity
語言 en_US
ISSN 1945-9645 1935-3804
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 否
國別 USA
公開徵稿
出版型式 ,電子版,紙本
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/107052 )