Radiation vulcanization of NR/SBR composite enhanced with different polyfunctional monomers |
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| Authors: | A M Maysa Rania Mounir M M Abou Zeid A A El Miligy |
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| Institution: | 1. Radiation Chemistry Department, National Center for Radiation Research and Technology, Atomic Energy Authority, P.O. Box 29, Nasr City, Cairo, Egypt
2. National Center of Radiation Research and Technology, Atomic Energy Authority, P.O. Box 7551, Nasr City, Cairo, 11762, Egypt
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| Abstract: | The effect of different polyfunctional monomers (PFMs) as enhancing agents on the properties of natural rubber/styrene-butadiene rubber blend reinforced with 40 (phr) part per hundred part of rubber, by weight of HAF carbon black and vulcanized with gamma irradiation was investigated. The coagents N,N’ methylene diacrylamide (MDA), trimethylol propane-trimethacrylate (TMPTMA) and trimethylol-methane tetraacrylate (TMMTA) were used at a constant content of 5 phr. The physico-chemical properties such as tensile strength, tensile modulus at 100 % elongation, elongation at break, gel fraction and swelling number were studied. The results indicated that the properties are greatly improved by PFMs at lower doses. TMMTA as coagent is more effective than TMPTMA and MDA. |
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