الفهرس 
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Abstract
Several reinforcement materials used as plastic composites, to improve the plastic properties and reduce the cost such as fibers and ceramics. The advantage of using glass as reinforcing material is due to its low cost, high availability and thermal stability. The problem which resulted during the formation of thermoplastic-glass powder is the poor compatibility, which results from the difference in nature between the hydrophobic thermoplastic polymer and the hydrophilic glass powder. The only way to improve the compatibility between the two phases is to select a coupling agent which reacts with both glass powder and polymer.
In this work high density polyethylene (HDPE) /waste glass powder/ PE-g-MA composites were prepared using both two-roll mill and compression molding techniques. Four levels of filler loading (5, 10, 20, and 30) wt % and five levels of maleated polyethylene content (0.5,
1.5, 2.5, 5, and 7.5 wt %) were used. The effect of adding the glass powder and PE-g-MA compatibilizer with different concentrations on the composite mechanical properties such as tensile strength, tensile strain, tensile modulus and thermal properties such as thermogravimetric analysis (TGA) were studied and the homogeneity of the prepared samples were confirmed by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM).
The results demonstrate that, the mechanical properties were improved whereas the tensile strength and modulus were increased with increasing waste glass powder loading and compatibilizer concentration to the optimum conditions at 20 and 1.5 wt % respectively then decreased by increasing their content, while the elongation at break is decreased with increasing both of them. Also the thermal stability of the prepared composite was improved with increasing filler loading. This study recommends that, the prepared composite at optimum conditions can be recommended as cost effective automobile’s dashboard materials.