Effect of surface treatment with potassium permanganate on ultra-high molecular weight polyethylene fiber reinforced natural rubber composites |
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| Affiliation: | 1. Department of Chemical Engineering, Isfahan University of Technology, Isfahan, 84156/83111, Iran;2. Deakin University, Carbon Nexus, Institute for Frontier Materials, Geelong, Australia;1. Department of Materials and Metallurgical Engineering, Faculty of Engineering, Rajamangala University of Technology Thanyaburi, Klong 6, Thanyaburi, Patumthani 12110;2. Department of Textile Science, Kyoto Institute of Technology, Matsugasaki, Sakyo-Ku, Kyoto 606, Japan;1. National University of Science and Technology “MISIS”, 119049 Moscow, Russia;2. Institute for High Pressure Physics Russian Academy of Sciences, 42190, Troitsk, Moscow, Russia |
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| Abstract: | The effects of surface treatment using potassium permanganate on ultra-high molecular weight polyethylene (UHMWPE) fibers reinforced natural rubber (NR) composites were investigated. The results showed the surface roughness and the oxygen-containing groups on the surface of the modified fibers were effectively increased. The NR matrix composites were prepared with as-received and modified UHMWPE fibers added 0–6 wt%. The treated fibers increased the modulus and tensile stress at a given elongation. The tear strength increased with increasing fiber mass fraction, attained maximum values at 4 wt%. The hardness of composites exhibited continuous increase with increasing the fiber content. The dynamic mechanical tests showed that the storage modulus and the tangent of the loss angle were decreased in the modified UHMWPE fibers/NR composites. Several micro-fibrillations between the treated fiber and NR matrix were observed, which meant the interfacial adhesion strength was improved. |
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| Keywords: | UHMWPE fiber Potassium permanganate Natural rubber Composites Mechanical properties |
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