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Effects of Compatibilizer and Paper Sludge Content on the Performances of Thermoplastic Polymer Composites
Abstract
One of the environmental issues affecting third-world countries is the economic use of lignocellulose waste, which is now being researched. Paper sludge (PS) composites will allow for the effective use of a waste material that is currently burned or buried, as well as the ability to lower the cost of the composite that is created. In this study, the mechanical and thermal
characteristics of environmentally friendly composites constructed from PS-reinforced recycled poly(ethylene terephthalate) (rPET) matrix with the addition of SEBS-g-MA as a compatibilizer are presented. A twin-screw extruder was used to analyze the effects of SEBS-g-MA addition
and various PS content (10, 20, and 30 wt%) on the tensile, flexural, and impact properties of the rPET/PS eco-friendly composites. When compared to rPET/SEBS-g-MA blend, the stiffness of composites dramatically enhanced. The impact strength of rPET was dramatically increased by the addition of SEBS-g-MA. Due of the rubbery features of the compatibilizer, the blend has reduced tensile and flexural properties. With more PS, the tensile and flexural moduli became better. The maximum values for the tensile and flexural strengths were observed with a loading
of 10% PS. The nonisothermal crystallization results showed that for the PS-reinforced Ncomposites, the temperature of onset crystallization and degree of crystallinity increased. Studies using thermogravimetric analysis showed that the thermal stability of the composites improved when PS was added, with the primary decomposition temperature being around 350 o C.
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