Study on Thermal Stability and Aging Resistance of High Hardness Polyurethane Elastomer via Thermal Analysis

Abstract

In this study, the role of chemical soft segment (SS) constructions in thermal and mechanical properties of the elastomers has been investigated by choosing two types of polyol, a polyester and a polyether. Also the effect of the hard segment (HS) chemical construction has been studied. The result showed that compared with polyether based PUs, polyester based PUs have better thermal stability under nitrogen atmosphere. However, the difference for the aging resistance performance of PUs based on polyester and polyether is not obvious without oxidation impact.