Effect of chemical crosslinking on mechanical and electrical properties of ultrahigh-molecular-weight polyethylene-carbon fiber blends prepared by gelation/crystallization from solutions |
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| Authors: | Ru Chen Yuezhen Bin Yumiko Nakano Naoko Kurata Masaru Matsuo |
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| Institution: | (1) Department of Polymer Material Science, School of Chemical Engineering, Dalian University of Technology, Dalian, 116012, China;(2) Human Environment Science, Mukougawa Women’s University, Ikebiraki-cho, Nishinomiya 663-8558, Japan;(3) Department of Textile and Apparel Science, Nara Women’s University, Nara 630-8263, Japan; |
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| Abstract: | In an attempt to improve the mechanical property of polyethylene composite at high temperature, crosslinking of ultrahigh-molecular-weight
polyethylene (UHMWPE) and carbon fiber (CF) blends was carried out by using dicumyl peroxide (DCP). The specimens were prepared
by gelation/crystallization from solutions. The effect of chemical crosslinking on mechanical and electrical properties of
UHMWPE/CF blends with composition of 1/0, 1/0.25, and 1/1 (w/w) were investigated in detail. Electrical conductivity and thermal mechanical properties of the blends with the 1/1 composition
were greatly improved by incorporation of enough content of CF and adequate crosslinking network formation. Surprisingly,
the Young’s modulus of the 1/1 blend reached 20 GPa at room temperature (20 °C). On the other hand, heat treatment at 135 °C
played an important role for obtaining a high PTC effect for the UHMWPE-CF blend in which the PTC intensity reached 107. |
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