A COMPREHENSIVE EXPLORATION OF BIO-BASED NON-ISOCYANATE POLYURETHANE

Abstract

Polyurethane in its various forms, has established dominance as a reliable material owing to its outstanding properties, including chemical resistance, weathering resilience, adhesion, mechanical strength, and durability. However, the escalating costs associated with synthetic polyurethane production, coupled with its non-biodegradable and toxic nature, along with the depletion of petrochemical-based raw materials, pose significant challenges. In response, researchers have successfully synthesized non-isocyanate polyurethane that adequately perform analogous to their petrochemical counterparts, addressing concerns such as environmental pollution, economic efficiency, and raw material sustainability. This work delves into the quest for 'greener' polyurethane materials, exploring the investigation of precursors for polyol and isocyanate synthesis. With attributes like biodegradability, cost-effectiveness, and the potential to substitute petroleum-based polyurethane, non-isocyanate polyurethane holds promising prospects for future polyurethane applications. This critical analysis provides an overview of the development, applications, and recent advancements in various non-isocyanate polyurethane polymers emerging over the last decade.