Observation and understanding of scratch behaviors of glass fiber reinforced polycarbonate plates with various packing pressures during the injection molding process

Jung Wook Wee, Sang Yoon Park, Byoung Ho Choi

    Research output: Contribution to journalArticlepeer-review

    12 Citations (Scopus)

    Abstract

    In this paper, the scratch resistance of injection molded, glass fiber reinforced polycarbonate (PC), constructed with different packing pressures and fiber compositions, was evaluated using the progressive normal load scratch test. The quantitative evaluation of scratch resistance of the samples was based on the onset of visibility and morphological transition points of the scratch for two fiber orientations and various scratch speeds. This study reveals that glass fiber reinforcement exerts a beneficial influence on scratch visibility; however, it has an adverse effect on morphological damage. Anisotropy and heterogeneity of glass fiber reinforced PC also plays a role in scratch resistance. The relationship between the onset of scratch visibility and damage transition points is also discussed.

    Original languageEnglish
    Pages (from-to)491-501
    Number of pages11
    JournalTribology International
    Volume90
    DOIs
    Publication statusPublished - 2015 Jun 3

    Bibliographical note

    Funding Information:
    This work was supported by the Nuclear Research and Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) Grant funded by the Ministry of Trade, Industry and Energy (No. 20141510101640 ). The authors would like to thank LG Chem., Ltd. for the supply of materials and the Korea University for the financial support.

    Publisher Copyright:
    © 2015 Elsevier Ltd. All rights reserved.

    Keywords

    • Glass fibers
    • Injection molding
    • Polycarbonate
    • Scratch

    ASJC Scopus subject areas

    • Mechanics of Materials
    • Mechanical Engineering
    • Surfaces and Interfaces
    • Surfaces, Coatings and Films

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