淡江大學機構典藏:Item 987654321/98399
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    題名: Preparation and characterization of spironaphthooxazine/polyacrylate photochromic hard coatings on plastic substrates
    作者: Chang, Chao-Ching;Wang, Chih-Shing;Chen, Yu-Chen;Cheng, Liao-Ping
    貢獻者: 淡江大學化學工程與材料工程學系
    能源與光電材料研究中心
    關鍵詞: Photochromic;Coatings;Spirooxazine;Polyacrylate
    日期: 2014-06-01
    上傳時間: 2014-07-29 14:22:54 (UTC+8)
    出版者: Taiwan: Tamkang University Press
    摘要: Optical coatings exhibiting photochromic effects were prepared by UV-curing of a coating formulation that incorporates a hexa-functional monomer, DPHA, and an organic dye, spironaphthooxazine. Spectroscopic studies of the coatings indicated efficient photochromic activities in response to UV irradiation. The depth of color and the rate of bleaching at 610 nm were found to depend on the UV dosage and the dye content; specifically, the transmittance returned from 42 to 82% and from 38 to 67% in 60 s. for the coating containing 3.7 wt% dye that received 0.45 and 3.6 of J/cm2 of UV exposure, respectively. Furthermore, the coatings were very hard (7H, pencil hardness) and adhered perfectly (100%, peel test) on poly (methyl methacrylate) substrates.
    關聯: Journal of Applied Science and Engineering 17(2), pp.167-174
    DOI: 10.6180/jase.2014.17.2.07
    顯示於類別:[化學工程與材料工程學系暨研究所] 期刊論文

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