Study the properties of high-density polyethylene with nano particles silica composite

Abstract

In this research work high density polyethylene (HDPE) and silica nanoparticles (SiO2 NPs) were studied. Samples having 0-10 % composition variation were prepared by injection molding. HDPE and Sio2 NPs constituents were combined at microscopic level and they are insoluble into each other. This phase is called as “Reinforcing” Phase. Soft and ductile phase is called Matrix phase. Matrix phase provides base support to the reinforcing phase and it is protecting the reinforcing phase from the hot environment against the degradation of Polymer Matrix Composites (PMC). Silica dioxide Particle in the form of powder was examined by Electron microscopic method (46.69% silica &53.31% oxygen) with size 2-20 nm. It has large specific surface area/surface energy. Sample of HDPE/SiO2 NPs composites were characterized by mechanical and thermal analysis. It was concluded that the including the SiO2 NPs into HDPE resulted in higher tensile and flexural properties. It has increased the impact strength of composite by 23.58% (5% by wt. addition of silica nanoparticles) and 46.42% (10% by wt. addition of silica nanoparticles).