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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/49969

    Title: Scratch-resistant zeolite anti-reflective coating on glass for solar applications
    Authors: Chen,CH;Li,SY;Chiang,AST;Wu,AT;Sun,YS
    Contributors: 化學工程與材料工程學系
    Date: 2011
    Issue Date: 2012-03-27 16:27:41 (UTC+8)
    Publisher: 國立中央大學
    Abstract: Sol-gel SiO(2) anti-reflection (AR) coating on solar glass is known to increase the current output by a few percent, but its mechanical durability is of concern. To improve its strength, the amorphous SiO(2) may be replaced by zeolite, which is a microporous aluminosilicate crystalline material. Scratch-resistant AR coating has been prepared by the dip coating of a composition which contains aggregated zeolite nanoparticles as the structure provider and zeolite precursors as the reactive binder. AR coating with better than 5H pencil hardness can be made with a composition containing BEA zeolite. Nanoindenter measurements show that this BEA zeolite films have 1.5 GPa indent hardness and 35 GPa elastic modulus. Furthermore, the freshly prepared AR coating shows a self-cleaning effect with a water contact angle (WCA) close to zero. It can be made super-hydrophobic with larger than 130 degrees WCA after modifying with hexamethyl-disilazane (HMDS), upon which the pencil hardness further increases to 6H. (C) 2011 Elsevier B.V. All rights reserved.
    Appears in Collections:[化學工程與材料工程學系 ] 期刊論文

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