THERMOPLASTIC POLYURETHANE RESIN CAPABLE OF BEING APPLIED TO DYNAMIC MECHANICAL COMPONENT MATERIAL REQUIRING THERMAL RESISTANCE IN HIGH TEMPERATURE AND EXCELLENT LOW TEMPERATURE PERFORMANCE, AND A MANUFACTURING METHOD THEREOF

摘要

PURPOSE: A thermoplastic polyurethane resin is provided to have excellent thermal resistance and cold resistance, to have low glass transition temperature, and has high mechanical strength.;CONSTITUTION: A thermoplastic polyurethane resin comprises polyol, polyisocyanate, and benzothiazole based chain extender. A manufacturing method of the thermoplastic polyurethane resin comprises a step of mixing polyol and polyisocyanate under nitrogen atmosphere, and synthesizing a prepolymer by reacting the mixture for 1-5 hours; and a step of adding thebenzthiazol based chain extender into the prepolymer, and reacting the mixture at 80-95 °C for 12-48 hours.;COPYRIGHT KIPO 2013