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Fabrication and Properties of Recycled PET Reinforced Waste Cellulosic Fiber Composites

Haydar Zaman, Ruhul A. Khan

Abstract


The economic utilization of lignocellulose waste, which is now being explored, is one of the environmental problems confronting third-world nations. Waste cellulosic fiber (paper sludge, PS) composites will enable the cost of the composite to be reduced while allowing for the efficient use of a waste material that is presently burned or buried. Environmentally friendly composites made from PSreinforced recycled poly(ethylene terephthalate) (rPET) matrix with the addition of SEBS-g-MA as a compatibilizer are discussed in terms of their mechanical and thermal properties in this work. The effects of SEBS-g-MA addition and different PS content (10, 20, and 30 wt%) on the tensile, flexural, and impact properties of the rPET/PS eco-friendly composites were examined using a twin-screw extruder. Composites have significantly improved stiffness as compared to rPET/SEBS-g-MA blend. The inclusion of SEBS-g-MA significantly improved the impact strength of rPET. The compatibilizer's rubbery characteristics cause the blend's lower tensile and flexural capabilities. The tensile and flexural moduli improved with increased PS. With a loading of 10% PS, the maximum values for the tensile and flexural strengths were noted. The nonisothermal crystallization results demonstrated that the temperature of onset crystallization and degree of crystallinity increased for the PS-reinforced composites. When PS was added, studies employing thermogravimetric analysis revealed that the composites' thermal stability increased, with the principal decomposition temperature hovering around 350°C

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