中大機構典藏-NCU Institutional Repository-提供博碩士論文、考古題、期刊論文、研究計畫等下載:Item 987654321/26923
English  |  正體中文  |  简体中文  |  Items with full text/Total items : 78937/78937 (100%)
Visitors : 39796420      Online Users : 647
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU 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://ir.lib.ncu.edu.tw/handle/987654321/26923


    Title: Impact fatigue of a polycarbonate/acrylonitrile-butadiene-styrene blend
    Authors: Ho,MH;Hwang,JR;Doong,JL;Fung,CP
    Contributors: 機械工程研究所
    Keywords: MECHANICAL-PROPERTIES;RESIDUAL-STRESSES;COMPOSITES;POLYPROPYLENE;MORPHOLOGY;BEHAVIOR;POLYMERS;NYLON-6
    Date: 1999
    Issue Date: 2010-06-29 18:03:22 (UTC+8)
    Publisher: 中央大學
    Abstract: This study analyzes the impact properties of a polycarbonate/acrylonitrile-butadiene-styrene (PC/ABS) blend. The specimens were prepared under various injection molding conditions, including filling time, melting temperature, and mold temperature. Impact tests were performed with a Dynatup drop weight impact tester at different impact energies (10, 15, 20, 25 J). The fracture mechanism was examined with a scanning electron microscopy. The results indicated that the load-time history of the PC/ABS blend has approximately a sinusoidal form in impact. The best injection molding conditions are a filling time of 12 s, a melting temperature of 260 degrees C and a mold temperature of 80 degrees C. Tn this case, the specimen shows the highest energy absorbed in single impact, together with the highest impact number in impact fatigue. The impact number and the accumulation energy seem to follow an exponential curve as the impact energy decreases. The PC/ABS blend material clearly exhibited ductile fracture with a continuous reduction in strength by viscoplastic deformation. The higher the impact number, the higher the accumulation energy. The accumulation energy of impact fatigue with impact energy 10 J is about 35-45 times greater than the energy absorbed in single impact. Tearing, shear fracture, and plastic deformation are the major fracture mechanisms of the PC/ABS blend matrix in single impact and repeated impact conditions.
    Relation: POLYMER ENGINEERING AND SCIENCE
    Appears in Collections:[Graduate Institute of Mechanical Engineering] journal & Dissertation

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML756View/Open


    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 隱私權政策聲明