Study on the preparation and properties of POE/PP dynamic vulcanized thermoplastic elastomers with low degree of hardness

The thermoplastic elastomer of POE/PP was prepared by dynamical vulcanization.The effects of type of resin,POE/PP ratio,the category and content of curing agents,processing conditions,etc.on the performances of the dynamic vulcanized thermoplastic elastomers of POE/PP were investigated by the orthogonal designing method in this paper.It was shown that POE/PP ratio,preparation technology and processing temperature were the key factors effecting the performances of the elastomers.It was proved that the POE/PP TPV with low degree hardness had best performances when POE/PP ratio was 70/30,the processing temperature was 240 ℃.The tensile strength of the material was 4.54 MPa,and the break elongation was 1 023.74%,and the processing flowability was much better than the EPDM/PP TPV.