Mechanical and Thermal Properties of Sisal-Cotton Fibres Reinforced Polypropylene Hybrid Nanocomposites
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Abstract
Sisal-Cotton fibres reinforced polypropylene hybrid nanocomposites were fabricated by employing melt intercalation technique. The cotton and sisal fibres were dried, pretreated and blended with matrix material by Haake Rheochord. In addition to cotton and sisal fibres in the ratio of 15:15 wt. % (30% CSFP). Nano clay of 1, 3, 5, 7 wt. % and 2 wt.% of Maleic Anhydride Grafted Polypropylene (MAPP) were added. The investigation on mechanical properties for those composites were carried out. The fibre pull-outs, the bonding, repulsiveness and cracks in composites were studied by scanning electron microscopy. The WAXD patterns showed that the addition of compatibilizer and the clay improved the dispersion of nano clay in CSFP matrix. Among all the composition of nano clays, the one with 3% has shown better mechanical properties than others. The MAPP compatibilized CSFP hybrid nanocomposites showed good toughness and stiffness. Addition of clay has resulted in appreciable nucleating effect due to crystallization which occurred at higher temperature. Higher thermal stability was shown by TGA thermograms of nanocomposites.
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