DYNAMIC MECHANICAL THERMAL AND THERMOMECHANICAL CHARACTERIZATIONS OF RICE HUSK AND SAW DUST FILLED POLYOLEFIN COMPOSITES

Tóm tắt

The composites based on bio-fillers and polymers have attracted great interest due to increasing environmental concern, their low cost and renewable resource. In this study, the dynamic mechanical thermal and thermomechanical characterizations of polyolefin (Polypropylene – PP and polyethylene - PE) as well as three composite systems including the rice husk (RH) filled polypropylene composite, rice husk filled polyethylene composite and saw dust (SD) filled polyethylene composite were investigated. The effect of two types of compatibilizers, maleic anhydride grafted polypropylene (2 wt% MAPP) for polypropylene matrix composite and maleic anhydride grafted polyethylene (4 wt% MAPE) for polyethylene matrix composites on dynamic mechanical thermal properties (Storage modulus - E’, loss modulus - E”,damping factor - Tan δ)of three composite systems were studied. Moreover, the coefficient of thermal expansion and dimension change of neat matrices (PP, PE) and three composite systems (PP/RH, PE/RH and PE/SD) with compatibilizers were also investigated by Thermo Mechanical Analysis.