English  |  正體中文  |  简体中文  |  Items with full text/Total items : 49983/85139 (59%)
Visitors : 7800232      Online Users : 71
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version
    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/107056


    Title: Preparation of highly transparent 13F-modified nano-silica/polymer hydrophobic hard coatings on plastic substrates
    Authors: Chang, Chao-Ching;Lin, Zi-Min;Huang, Shu-Hui;Cheng, Liao-Ping
    Keywords: Colloidal Silica;Hard Coating;UV-curing;Plastic Substrate;Hydrophobic
    Date: 2015/12/01
    Issue Date: 2016-08-15
    Publisher: Rochester Institute of Technology * College of Applied Science and Technology
    Abstract: Silica nanoparticles synthesized from tetraethoxysiliane (TEOS) via a solgel process were
    surface-modified by using 3-(trimethoxysilyl)propyl methacrylate (MSMA) and 1H, 1H, 2H, 2Hperfluorooctyltriethoxysilane
    (13F). MSMA acted as a coupling agent and a C=C provider, whereas
    13F was employed to enhance hydrophobicity. The surface-modified silica particles together with a
    multi-functional monomer were UV-cured to yield highly transparent thin films (~7 m) on plastic
    substrates. Both FE-SEM imaging and UVvisible spectroscopy confirmed uniform dispersion of
    nano-silica in the hybrid thin films. The coating surfaces were extremely smooth, with average
    roughness over the range 1.02.3 nm based on profilometric measurements. X-ray photoelectron
    spectroscopy indicated that surface-modified silica particles have migrated to the top surface to reduce
    the surface energy. Therefore, only a small dosage of 1 mol% (vs. TEOS) was enough to engender
    surface hydrophobicity with water contact angle of 100. Furthermore, all of the prepared coatings
    were hard with pencil hardness reached 6H, and they adhered strongly to the poly(methyl
    methacrylate) substrate according to the peel test.
    Relation: Journal of Applied Science and Engineering 18(4), pp.387-394
    DOI: 10.6180/jase.2015.18.4.10
    Appears in Collections:[化學工程與材料工程學系暨研究所] 期刊論文

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML78View/Open

    All items in 機構典藏 are protected by copyright, with all rights reserved.


    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - Feedback