English  |  正體中文  |  简体中文  |  Items with full text/Total items : 62797/95867 (66%)
Visitors : 3740646      Online Users : 584
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: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/107056


    Title: Preparation of highly transparent 13F-modified nano-silica/polymer hydrophobic hard coatings on plastic substrates
    Authors: Chao-Ching Chang;Zi-Min Lin;Shu-Hui Huang;Liao-Ping Cheng
    Keywords: Colloidal Silica;Hard Coating;UV-curing;Plastic Substrate;Hydrophobic
    Date: 2015-12
    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, Hperfluorooctyltriethoxysilane
    (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), p.387-394
    DOI: 10.6180/jase.2015.18.4.10
    Appears in Collections:[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

    Files in This Item:

    File Description SizeFormat
    10-CHE10402_0031.pdf977KbAdobe PDF1View/Open
    index.html0KbHTML267View/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