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Unformatted text preview: ass fibre (SGF) content and the incorporation of a silane coupling agent γ aminopropyltrimethoxysilane (γ-APS) on the tensile properties, morphology and thermal behaviour of polypropylene/ waste tyre dust/ short glass fibre (PP/WTD/SGF) composites were investigated. Two series of composites with various compositions were prepared by melt mixing in an internal mixer 0 Haake Rheomix Polydrive R 600/610 at 180 C and 50 rpm rotor speed. The results indicate that that tensile strength and elongation at break, Eb decrease with increasing SGF content. On the other hand, Young’s modulus increases as SGF content increases. From the morphological observation, the composites with higher SGF content shows poorer interfacial adhesion between SGF and PP/WTD matrix than that of lower SGF content. The thermal stability increase as the SGF increased. Nevertheless, the presence of a silane coupling agent, γ-APS in PP/WTD/SGF composites has improved the tensile properties except elongation at break. The SEM studies have confirmed the improved fibre-matrix interaction in PP/WTD/SGF (γ-APS) composites while the thermal stability was also improved due to the presence of γ-APS coupling agent. POLY-O10 WASTE TIRE RUBBER PARTICLES USING TO IMPROVE THE PROPERTIES OF LOCAL ASPHALT CONCRETE Abdulali B. Ben Saleh Department of Chemistry, 7 October University, Misurata, Libya E-mail: email@example.com The research considered urgent ecological reasons linked to environment such as worn tires, the waste tire rubber's powder was collected from the tire cars repair shops (passed from the sieve No 18 μm), and used to improve the asphalt concrete properties. Raw materials used were prepared and tested. Varies of asphalt concrete mixtures were prepared with different ra tios of bitumen (5.0, 5.5, 6.0 and 7.0 % of concrete weight). The Marshall mix design method was used to determine optimum conditions for bitumen in asphalt concrete with specific weight, stability and flow test, the optimum amount of bitumen was 6.1 % of whole asphalt concrete. The different percentages of waste tire rubber...
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- Spring '11