“Preparation of polyurethane foam using bio-based polyhydroxyl oils and investigation of its effect on mortar pastes”

Abstract

Polyurethane foams are versatile polymeric materials which find broad applications such as: thermal insulation, sound insulation, coating, adhesive, sealant and construction building industry. Researchers are making great efforts to develop and improve their mechanical and thermal properties. The use of bio renewable resources for polyurethane manufacturing and polymer industry as a whole has become highly desirable for both economic and environmental reasons. Synthesis of the polyurethane foam was involved two main reactions which are gelling and blowing reaction. The gelling reaction is related to generating of the urethane linkages which were created from isocyanate group and hydroxyl group. The blowing reaction is the reaction that creating of air bubbles entrapped inside the reactive mixture.