Effect of Calcium Oxide Nanoparticles on Thermal and Mechanical Properties of Unsaturated Polyester Resin

Abstract

In this research, calcium oxide (CaO) nanoparticles have been prepared using chemical bath deposition and characterized by the X-ray diffraction (XRD) and Raman spectroscopy, which show that the grains were within the nanoscale. The effect of calcium oxide (CaO) nanoparticles concentration on the mechanical and thermal properties of unsaturated polyester were investigated. The mechanical properties includes modulus of elasticity, compressive strength, impact resistance and hardness. The maximum values of modulus of elasticity, compressive strength, impact resistance and hardness were 834.79 MPa, 123.7, 44 kJ/m² and 122.9, respectively. The thermogravimetric analysis (TGA) curves show that the maximum onset and end decomposition temperature were observed at 8 g calcium oxide (CaO) nanoparticles. The thermal conductivity coefficient was also affected by calcium oxide (CaO) nanoparticles, where it decreased nanoparticles concentration.