Improving Mechanical and Thermal Properties for Unsaturated Polyester Resin by Adding Cement

The aim of this research is to prepare a composite material consisting of unsaturated polyester as a base material with cement as a supporting material in different weight percentages (5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%). 50%) to study some of the mechanical and thermal properties of the composite material. After comparing unsaturated polyester before and after reinforcement of the prepared polymeric compounds, the results confirmed that the weight percentage in which the mechanical properties increase at a temperature of 25C is 30%. And the values of the mechanical properties (hardness, impact resistance, and compressive strength) increase with the increase in the percentage of reinforcement, and the relationship was direct. Both hardness and elasticity increased with increasing temperature at 50C and reversed at 8C. However, impact resistance and compressive strength decreased with increasing temperature. It was also found that thermal conductivity decreased at all temperatures after adding the supporting material, indicating that the polymeric compounds prepared from unsaturated polyester with... Cement backing material is good thermal insulators.