Fatigue Properties of an Olefin Thermoplastic Elastomer in Comparison with Other Thermoplastic Elastomers

摘要

This paper discusses the dynamic fatigue properties of an olefin thermoplastic elastomer (TPE-O) and how it compares with flexible PVC (f-PVC) and styrene block copolymers based thermoplastic elastomers (TPE-S). The fatigue properties were investigated measuring the change of hysteresis properties as samples are subject to cyclic loads in air at room temperature. Material elastic features are investigated using dynamic mechanical analysis and compression set methods. The effect of aging on physical properties of materials is also investigated. The advantages of the TPE-0 in fatigue resistance are discussed and attributed to its structure and morphology.