Studing Some Effective Parameter on The Dielectric Properties of Composite Materials Containing of Un Saturated Polyester Resin

Abstract

The studyof dielectric constant (єr) and the dielectric strength (Ebr) of the composite materials consist of the unsaturated polyester resin reinforced with aluminum powder and unsaturated polyester resin reinforced with aluminum powder and the copper oxide .The composites were made in different weight fraction (5%,10%,15). The results showed that dielectric strength decreases with thickness increase and decrease with the weight fraction. But the dielectric constant decrease with the frequency increase and increase with the weight fraction increase.