Mechanical properties of fiber reinforced styrene-butadiene rubbers using surface-modified UHMWPE fibers under EB irradiation |
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Authors: | Y. Kondo Y. Yamaguchi S. Irie |
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Affiliation: | a Industrial Technology Center of Fukui Prefecture, Fukui 910-0102, Japan b Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Fukui 910-8507, Japan |
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Abstract: | Aiming to develop a high performance fiber reinforced rubber of SBR, a special technique using electron beam (EB) irradiation-induced graft-polymerization was applied to ultra-high molecular-weight polyethylene (UHMWPE) fibers. Although UHMWPE is chemically inert, N-vinyl formamide (NVF) could be graft-polymerized onto the UHMWPE fiber surface with this special technique. A maximum grafting percentage of 23.6% was achieved. The composite of SBR and grafted UHMWPE fibers with maximum grafting indicated a linear increase in the initial modulus and strength with the fiber content. At the fiber content of 10%, the initial modulus was improved about five times with respect to that of the pure SBR, while the strength was done about twice. At this moment, only a small reduction could be observed in the strain compared with that of pure SBR. The fiber reinforced rubber with a good performance was obtained in the system of SBR and grafted UHMWPE fibers. |
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Keywords: | Styrene-butadiene rubber (SBR) Ultra-high molecular weight polyethylene (UHMWPE) fiber Graft-polymerization Electron beam (EB) irradiation Composite |
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