A Review on Synthesis and Characterization of Castor Oil Based Polyurethane Adhesive

This review paper gives the idea about use of raw materials from renewable sources to synthesis polyurethane adhesive which is important from social, environmental and economic view as compared to those produced form petrochemical sources. Polyurethanes based on castor oil were synthesized with polyols and toluene diisocyanate, and amine as a catalyst. The degree of swelling, mechanical properties, and polymerization kinetics was greatly affected by the diisocyanate nature. The aim of this review paper is to give a fundamental description of castor oil and various application of polyurethane adhesive like wood, metal, etc