助硫化剂ZDMA对EPDM硫化特性和基本性能的影响  

Effect of vulcanizing agent ZDMA on vulcanization characteristics and basic properties of EPDM

作　　者：史兴辉 涂杰昀 蒋兴旺 徐加勇 吴迪 刘明辉 刘广永[1] SHI Xinghui;TU Jieyun;JIANG Xingwang;XU Jiayong;WU Di;LIU Minghui;LIU Guangyong(Key Laboratory of Rubber-Plastics of Ministry of Education,Qingdao University of Science and Technology,Qingdao 266042,China;Datwyler Sealing Technology(Anhui) Co.,Ltd.,Xuancheng 242300,China)

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042 [2]德特威勒密封技术(安徽)有限公司,安徽宣城242300

出　　处：《弹性体》2021年第4期34-37,共4页China Elastomerics

基　　金：山东省自然科学基金项目(ZR2020QE079)。

摘　　要：研究了甲基丙烯酸锌(ZDMA)作为助硫化剂时对三元乙丙橡胶(EPDM)的硫化特性和基本力学性能的影响。结果表明,随着ZDMA用量的增加,混炼胶的正硫化时间(t90)迅速降低,门尼黏度下降,交联程度上升,即ZDMA提高了EPDM的交联效率,改善了胶料的流动性。另外,随着ZDMA用量的增加,EPDM硫化胶的拉伸强度略微下降,撕裂强度和硬度增加,压缩永久变形增加,回弹性基本保持不变。The effect of zinc dimethacrylate(ZDMA)as a vulcanizing agent on the vulcanization characteristics and basic mechanical properties of ethylene-propylene diene monomer(EPDM)was studied.The results show that as the amount of ZDMA increases,the normal vulcanization time(t90)of the rubber compound is decreased rapidly,and Mooney viscosity decreases,and the degree of crosslinking increases.ZDMA enhances the crosslinking efficiency of EPDM and improves the fluidity of the rubber compound.In addition,with the increasing in the amount of ZDMA,the tensile strength of EPDM vulcanizates decreases slightly,and the tear strength,hardness and the compression set increases,and the resilience remaines basically unchanged.

关 键 词：甲基丙烯酸锌 三元乙丙橡胶 硫化特性 力学性能 

分 类 号：TQ333.4[化学工程—橡胶工业]