الملخص

Abstract: The work focuses on the preparation of polymer matrix composite materials by hand lay up the composite materials were prepared from the unsaturated polyester resin as matrix reinforced by intensification materials (Si, Al2O3, and hybrid of both reinforcement (Si+Al2O3)) with weight fraction of %25. This research includes studying the mechanical properties for these materials composite, the mechanical tests were done at room temperature, and they include (bending, impact, hardness, compression, tensile). Results of the work showed that mechanical properties were for composite material reinforced by (Si) such that, they have higher compressive strength, impact strength, and more ductile in the tensile, and the composite material reinforced by alumina had higher value of young's modulus than the polyester itself. also the values of hardness for the composite material is a little low than material of un reinforced polyester.