EPDM吊耳的动静刚度比影响因素分析  

Analysis of Influencing Factors of Dynamic and Static Stiffness Ratio of EPDM Lifting Lug

作　　者：魏海东 袁继贤 张润谱 张瑞造 WEI Haidong;YUAN Jixian;ZHANG Runpu;ZHANG Ruizao(Zhejiang Fengmao Technology Co.,Ltd,Yuyao 315403,China;Changsha Yongchang Vehicle Parts Co.,Ltd,Changsha 410000,China;Tianjin Zhonghe Rubber Industry Co.,Ltd,Tianjin 301721,China)

机构地区：[1]浙江丰茂科技股份有限公司,浙江余姚315403 [2]长沙永昌车辆零部件有限公司,湖南长沙410000 [3]天津中和胶业有限公司,天津301721

出　　处：《橡胶科技》2023年第12期589-592,共4页Rubber Science and Technology

摘　　要：研究硫化体系、补强体系、含胶率和交联密度对三元乙丙橡胶(EPDM)吊耳动静刚度比的影响。结果表明:在硬度相同的情况下,配方含胶率越高,EPDM吊耳在180~300 Hz频率区间内的动刚度越大;100%定伸应力越小,在0~100Hz频率区间内的动静刚度比越小;适当调整过氧化物硫化剂和助交联剂用量,平衡EPDM胶料的交联密度,可以获得合适的动静刚度比。The effects of the curing system,reinforcing system,rubber content and crosslinking density on the dynamic and static stiffness ratio of EPDM lifting lug were studied.The results showed that,when the hardness was the same,the higher the rubber content of the formula was,the larger the dynamic stiffness of EPDM lifting lug in the frequency range of 180~300 Hz was.The lower the modulus at 100%elongation was,the smaller the dynamic and static stiffness ratio in the frequency range of 0~100 Hz was.By appropriately adjusting the dosage of peroxide vulcanizing agent and co-crosslinking agent to balance the crosslinking density of EPDM compound,a suitable dynamic and static stiffness ratio could be obtained.

关 键 词：三元乙丙橡胶 补强体系 硫化体系 含胶率 交联密度 动静刚度比 静刚度 动刚度 

分 类 号：TQ336.42[化学工程—橡胶工业] TQ333.1