A comparison of a novel formulation of rigid polyurethane foams synthesis by hydrocarbon blowing agents

Abstract A simple formulation of rigid polyurethane foams (RPUFs) is presented for obtaining a material, with good thermal insulation and long-term stability, based on the different hydrocarbon blowing agents (HBAs). The obtained formulation is prepared from isocyanate and polyol for construction application or appliances. A method and a particular experimental approach have realized to replace hazardous blowing agents (chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs)) with other less harmful agents to improve the thermal resistance of this polymer. The obtained results are very encouraging in certain foams prepared from HBA and provide excellent performance.