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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/50381

    Title: Investigation of the Ultradrawing Properties of Gel Spun Fibers of Ultra-high Molecular Weight Polyethylene/Carbon Nanotube Blends
    Authors: Yeh, Jen-taut;Lin, Shui-chuan;陳幹男;Chen, Kan-nan;Huang, Kuo-shien
    Contributors: 淡江大學化學學系
    Keywords: UHMWPE/CNTs;shear viscosities;achievable draw ratio;birefringence;morphology
    Date: 2008-12
    Issue Date: 2010-08-09 16:27:37 (UTC+8)
    Publisher: Wiley-Blackwell
    Abstract: The carbon nanotubes (CNTs) contents, ultrahigh-molecular-weight polyethylene (UHMWPE) concentrations and temperatures of UHMWPE, and CNTs added gel solutions exhibited significant influence on their rheological and spinning properties and the drawability of the corresponding UHMWPE/CNTs as-prepared fibers. Tremendously high shear viscosities (s) of UHMWPE gel solutions were found as the temperatures reached 140°C, at which their s values approached the maximum. After adding CNTs, the s values of UHMWPE/CNTs gel solutions increase significantly and reach a maximum value as the CNTs contents increase up to a specific value. At each spinning temperature, the achievable draw ratios obtained for UHMWPE as-prepared fibers prepared near the optimum concentration are significantly higher than those of UHMWPE as-prepared fibers prepared at other concentrations. After addition of CNTs, the achievable draw ratios of UHMWPE/CNTs as-prepared fibers prepared near the optimum concentration improve consistently and reach a maximum value as their CNTs contents increase up to an optimum value. To understand these interesting drawing properties of the UHMWPE and UHMWPE/CNTs as-prepared fibers, the birefringence, thermal, morphological, and tensile properties of the as-prepared and drawn fibers were investigated. Possible mechanisms accounting for these interesting properties are proposed.
    Relation: Journal of Applied Polymer Science 110(5), pp.2538-2548
    DOI: 10.1002/app.28663
    Appears in Collections:[Graduate Institute & Department of Chemistry] Journal Article

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