English  |  正體中文  |  简体中文  |  Items with full text/Total items : 52359/87459 (60%)
Visitors : 9140357      Online Users : 210
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/987654321/104526

    Title: Morphology and mechanical properties of dual-curable epoxyacrylate hybrid composites
    Authors: Su, Yu-Chieh;Don, Trong-Ming
    Keywords: mechanical properties;composites;adhesives;elastomers
    Date: 2015-04-15
    Issue Date: 2016-01-06 11:01:10 (UTC+8)
    Abstract: A dual-curable epoxyacrylate (EA) oligomer with one epoxide group and one vinyl group at each end was synthesized for the application as adhesive sealant in the liquid crystal display panels. However, after UV and thermal cure, the EA resin was brittle with a poor resistance to crack initiation and propagation. Liquid rubbers with different functional end groups were thus tried as toughening agents for the EA resin. Among all the rubber-toughened EAs, the EA-V5A5 added with vinyl-terminated and amino-terminated butadiene-acrylonitrile copolymers (VTBN and ATBN) each at 5 phr had the highest fracture toughness, tensile strength, and elongation at break but a lower initial modulus. To raise the modulus, submicron-sized silica particles (∼170 nm) with surface vinyl functional groups were further added to the EA-V5A5 to prepare the hybrid composites. Because of interfacial chemical bonding provided by the surface vinyl functional groups, both modulus and fracture toughness were increased by adding silica particles, without any appreciable decrease in extensibility. For the hybrid composite at 20 phr silica particles, the initial modulus, fracture toughness, and fracture energy were raised by 10.3, 100, and 267%, respectively, when compared to the neat epoxyacrylate. Owing to their strong interfacial bonding, the increase of fracture toughness was mainly due to the crack deflection and bifurcation on silica particles, in addition to the rubber particle bridging and tearing as evidenced by SEM pictures on the fracture surface.
    Relation: Journal of Applied Polymer Science 132(15), 41820
    DOI: 10.1002/app.41820
    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
    Su_et_al-2015-Journal_of_Applied_Polymer_Science.pdf1225KbAdobe PDF0View/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