Studies of the Mechanical Properties of Unsaturated Polyester Composite Reinforced by Randomly Woven Fiber Glass and Effect of Acidic Solutions on some of its Physical Properties

ABSTRACT
Preparation of unsaturated polyester reinforced with 20% (v/v) glass fiber woven randomly Ewere studied and the mechanical properties such as, Yong modulus (E), Impact Strength (I.S), Brinell hardness (B.H) and compression Strength (C.S) were investigated, at room temperature.
The resistance to the stress of the reinforced polyester and its mechanical properties were improved.
The effect of the acidic solutions like (HCl, HNO3, H2SO4) at different concentrations, has been studied on some physical properties (absorbance and diffusion coefficient) of polyester before and after reinforcement, and the results revealed obvious improvement in its physical properties.