教師資料查詢 | 類別: 期刊論文 | 教師: 張朝欽 Chang, Chao-Ching (瀏覽個人網頁)

標題: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
語言英文
ISSN
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者
審稿制度
國別英國
公開徵稿
出版型式,電子版,紙本
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