塑料科技2024，Vol.52Issue(12)：51-55,5.DOI:10.15925/j.cnki.issn1005-3360.2024.12.009
硫化体系对三元乙丙橡胶耐湿热老化性能的影响
Effect of Vulcanization Systems on Damp Heat Aging Resistance of Ethylene Propylene Diene Monomer Rubber
摘要
Abstract
Ethylene propylene diene monomer(EPDM)rubber is widely used as sealing material for valve cooling system of converter station in DC transmission engineering due to its excellent properties.However,various factors,including temperature,humidity and oxygen,would lead to performance degradation.In this paper,the effects of vulcanization systems on the vulcanization characteristics,mechanical properties and damp-heat aging properties of EPDM rubber were studied.The results showed that the conventional sulfur vulcanization(CV),effective vulcanization(EV),and semi-effective vulcanization(SEV)systems exhibited relatively high vulcanization efficiency.The mixed vulcanization(MV)system had comprehensive optimal mechanical properties.After damp heat aging,the tensile strength and elongation at break of EPDM rubber in CV and peroxide vulcanization(DV)systems decreased but their hardness increased to some extent.Owing to the stable cross-linked structure of EV and SEV systems,their mechanical properties only slightly changed.The change of the mechanical properties of MV system was similar to that of CV system,but the change range was small.关键词
三元乙丙橡胶/硫化体系/湿热老化/力学性能Key words
EPDM rubber/Vulcanization systems/Damp heat aging/Mechanical properties分类
化学化工引用本文复制引用
王欣欣,何成,赵普志,游溢,阿布莱·阿达克..硫化体系对三元乙丙橡胶耐湿热老化性能的影响[J].塑料科技,2024,52(12):51-55,5.基金项目
国网新疆电力有限公司科技项目(5230DK23000A) （5230DK23000A）
