Enhancement of mechanical properties of unsaturated polyester resin by mixing with carbon-Kevlar hybrid fibers

Abstract

Mechanical properties of unsaturated polyester resin (SIROPOL 8340-PI) incorporated with carbon - Kevlar hybrid fibers were calculated . Impact strength , tensile strength ,flexural strength ,and hardness were studied for composite material reinforced with hybrid carbon - Kevlar fibers as a woven roving (°45-°0) with density (1.77g/cm3) and (1.47g/cm3) respectively . These fibers were mixed with unsaturated polyester resin in different reinforcement percentage (20%,40%,60%) and the effect on the above mechanical properties were studied , where we see Improves in these mechanical properties after reinforcement by fibers and the value of mechanical properties will increase with increasing percentage of reinforcement