Preparation of dye-grafted-silica/poly(acrylate) color coatings with enhanced color stability at elevated temperatures
學年 107
學期 1
出版（發表）日期 2019-01-01
作品名稱 Preparation of dye-grafted-silica/poly(acrylate) color coatings with enhanced color stability at elevated temperatures
作品名稱（其他語言）
著者 Chao-Ching Chang; Feng-Hsi Huang; Liao-Ping Cheng
單位
出版者
著錄名稱、卷期、頁數 Pigment & Resin Technology 48 (1), p.36-44
摘要 Purpose The purpose of this paper is to investigate the effects of dipentaerythritol hexaacrylate (DPHA) and 3-(trimethoxysilyl)propyl methacrylate-modified silica nanoparticles (MSiO2) contents on the performances of the Disperse Red 1 (DR1)-grafted-silica/poly(acrylate) color hard coatings. Design/methodology/approach The organic dye DR1 was silylated by reaction with the coupling agent 3-isocyanatopropyltriethoxysilane in methyl ethyl ketone. The silylated-DR1 thus obtained was grafted on MSiO2 to form dye-grafted silica (GSiO2). This hybrid dye was then UV-cured with the cross-linking agent, DPHA, to yield color coatings. Thermal durability of the coatings was evaluated based on their CIE (international commission on illumination) chromaticity coordinates and UV/Vis transmittances. Findings The results indicated that GSiO2-coatings could tolerate thermal attack better than pristine DR1-coatings or dye-absorbed silica (DSiO2)-coatings because of the fact that DR1 was more finely dispersed in the polymer binder when covalently bonded to the silica particles. Under optimal conditions, coatings with very small change of saturation and hue after high-temperature treatments were obtainable. These coatings appeared transparent, had 3H-6H pencil hardness and adhered perfectly onto the poly(methyl methacrylate) substrates. Practical implications Dye-grafted color coatings may find applications such as color filter photoresists for displays, microelectronics, printed circuit boards, etc. Originality/value The performances of the coatings were evaluated in terms of mechanical strength, adherence to the substrate, transmittance and color stability against heat treatments, which have not been disclosed. Also, using a newly developed triangular composition diagram, suitable ranges for preparing useful color coatings were accessed. The present method deserves further research studies on green and blue dyes.
關鍵字 Dyes;Thermal stability;Resins;Coloured callus;Nanocomposite coatings;Pencil hardness;Silica nanoparticles
語言 en
ISSN
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者
審稿制度 是
國別 GBR
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/987654321/116087 )