Optimised synthesis and characterisation of high-performance unsaturated polyester resin composite laminates for industrial applications

The ortho-unsaturated polyester resin (UPR01) composite laminate was synthesised using a precise resin formulation and fabricated through the hand lamination method, over a temperature range of 20°C to 45°C, utilising different concentrations of cobalt catalysts and inhibitor solutions and testing various physical characteristic features such as specific gravity, viscosity, volatile content, acid value, gel time, and peak exotherm temperature. The resin, formulated with components like propylene glycol, diethylene glycol, maleic anhydride, phthalic anhydride, and styrene monomer, exhibited optimal liquid properties and curing behaviour, and the composite laminate showed high tensile strength (308.39 N/mm2), flexural strength (282.51 N/mm2), and impact strength (278.01 KJ/m2), significantly resemblances with the industry standard materials results in advanced composite materials for the modern world.