Abstract
Polypropylene (PP)/ recycled acrylonitrile butadiene rubber (NBRr)/ banana skin powder (BSP) composites with different BSP filler loading (5,10,15,20,25,30wt. %) were studied. Composites were prepared by using heated two roll mill at 180 °C. The effect of 3-aminopropyltrimethoxysilane (APS) as coupling agent were evaluated. Mechanical properties such as tensile strength, Young’s Modulus and Elongation at Break (Eb) of the different composites were investigated. Tensile strength and Elongation at break of the composites were found to be decreasing with increasing BSP filler loading. The Young’s Modulus was found to be increasing with BSP filler loading due increment of composite rigidity. At similar BSP filler loadings, γ-APS treated BSP composites shows higher tensile strength and Young’s Modulus. This may due to strong bonding between BSP filler and PP/NBRr matrices in the presence of APS silane coupling agent. The morphological studies strongly support this findings whereby good interaction and less pull outs of BSP filler was noticed in the presence of APS silane.
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