LAUSR

Abstract In order to overcome the shortcomings of high cost of traditional high-performance reinforced fillers, low-cost high-density polyethylene (HDPE) was introduced into TPI matrix as reinforcement phase in this study, and the TPI/HDPE hybrid shape memory polymer composites (SMPCs) was vulcanized by dynamic vulcanization technology. Due to the different vulcanization degree of TPI components the properties of TPI SMPCs are different, so it is particularly important to choose the appropriate content of vulcanizing agent. In order to realize the complementary advantages of the rubber-plastic thermoplastic elastomers, the vulcanization degree of TPI component was controlled by changing the amount of sulfur in the dynamic vulcanization system. The strengthened cross-linked structure made the excellent characteristics of plastics and rubber fully demonstrated. Through a series experiments, the effect of dynamic vulcanization system on the thermodynamics and shape memory properties of TPI/HDPE hybrid SMPCs was revealed. The results show that the TPI/HDPE SMPCs with the sulfur content of 2% has the best thermodynamics and shape memory properties.