【摘要】 研究了4种型号EPDM和过氧化物溴化酚醛树脂复合硫化体系对动态硫化三元乙丙橡胶(EPDM)/聚丙烯(PP)热塑性硫化橡胶(TPV)力学性能的影响。采用正交设计安排19次实验得出4种助剂各有4个不同用量时力学性能最佳的配方,而不必对45(1024)种可能配方都进行实验。结果表明EPDM型号和溴化酚醛树脂用量对力学性能影响最大。力学性能最佳的配方(质量份)为:门尼粘度适中、碘值为8的EPDM100;PP120;溴化酚醛树脂7;双叔丁过氧异丙基苯1.3;三烯丙基异氰脲酸酯0.8;钛白粉4。采用此配方制备TPV不腐蚀加工设备,产品无气味,外观为乳黄色,易染色;力学性能为邵尔硬度51D;拉伸强度37.23MPa、断裂伸长率728%;超过国外同类产品水平。更多还原

【Abstract】 The dynamic vulcanization EPDM/PP TPV was studied in this paper.The optimum formula of the elastomer was gained by using orthogonal experiments.The optimum formula is as follows(Wt):EPDM(Iodine value 8) 100,PP(F401) 120,brominated octylphenol/formaldehyde heat reactive resin(SP1055) 7,titanium white(R930):4,bis (t-butylperoxy isopropyl) benzene (BIPB) 0.8,triallyl isocyanurate (TAIC) 1.3.The tensile strength of the result TPV was 37.23MPa.The elongation at break was 728%.更多还原