【摘要】 采用动态硫化法制备了POE/PP热塑性弹性体,运用正交设计方法系统研究了POE/PP树脂类型及用量比、交联剂类型及用量、助交联剂类型及用量、加工工艺条件等对POE/PP动态硫化胶性能的影响规律。结果表明,POE/PP用量比、加工工艺和捏合温度是影响材料性能的关键因素;当POE/PP用量比为70/30、捏合温度为240℃时,所得低硬度POE/PP共混型热塑性弹性体的性能最佳,其拉伸强度为4.54 MPa,断裂伸长率可达1 023%,且加工流动性远优于EPDM/PP型动态硫化胶。更多还原

【Abstract】 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.更多还原