Zn(MAA)2在硫磺硫化天然橡胶中活化行为的研究

摘要

对照氧化锌(ZnO)研究了二甲基丙烯酸锌[Zn(MAA)2]对硫磺硫化天然橡胶硫化特性、拉伸性能、热氧老化性能及屈挠性能的影响,并初步分析其作用机理.结果表明,ZnO和Zn(MAA)2均可活化橡胶的硫化过程,从而提高胶料的交联程度;老化及疲劳测试结果证明,Zn(MAA)2可以使胶料获得更加优异的耐热氧老化性能以及屈挠疲劳性能.%Through curing characteristics,tensile properties,thermal aging properties,flexibility and scanning electron microscopy,comparing with zinc oxide(ZnO),we studied the effects of zinc dimethacrylate[Zn(M M A)2]on properties of sulfur vulcanized natural rubber,and preliminarily analysed its mechanism.The results showed that the curing process with zinc oxide and zinc dimethacrylate can be both activated rubber,so as to improve the degree of crosslinking of rubber material.According to the results of aging and fatigue test,Zn(MAA)2gives more excellent thermal aging resistance performance and fatigue properties.