Mechanical Properties Of Prepreg Glass Fibre Reinforced Polyester Composite

Abstract

This research investigates the mechanical properties of prepreg polyester fibre glass composites by analysing the effect of different prepreg times on their tensile strength. The objective is to determine the variation in tensile force for composite samples prepared with different prepreg durations: 0, 60, 120, 180, and 240 minutes. The samples were fabricated using a hand lay-up method, where polyester resin and glass fibre were layered in a standard mould and allowed to undergo prepregging for the specified durations. Each sample was then tested using a Universal Tensile Machine to evaluate its maximum tensile strength. The findings suggest that prepreg time influences the tensile performance of the composite, indicating a correlation between pre-curing duration and the mechanical properties of the material. This study highlights the significance of optimizing prepreg time in enhancing the structural performance of polyester resin glass composites.