Influence of Tensile Rates on Mechanical Properties of PP/GB Composites

The effect of tensile rates on the elastic modulus (E c) and yield strength of glass bead filled polypropylene composites was investigated by using an Instron material tester at room temperature The results show that the E c increases with increasing glass bead content and is proximately a power function of tensile strain rates, except for individual data point The tensile yield stress decreases nonlinearly with the addition of the filler volume fraction (φ f), while increases with increasing tensile strain rates as a form of power function Furthermore, the relationship among E c , φ f and stress were discussed