摘要
研究硫磺用量对环氧化程度为25的环氧化天然橡胶(ENR25)的硫化特性、交联密度、力学性能、耐热空气老化性能及热氧稳定性的影响。研究结果表明,当促进剂NS用量一定时,随着硫磺的增加,ENR的焦烧硫化时间T_(10)和正硫化时间T_(90)逐渐缩短,硫化胶的力学性能显著提高,耐热空气老化性能逐渐降低,热稳定性也随之降低。
The effect of sulfur loading on cure characteristics,crosslink densities,mechanical properties,hot-air aging and thermal-oxidative stability of epoxidized natural rubber with 25 mol % epoxidation（ ENR25）. The results showed that the scorch time and cure time of the ENR25 vulcanizates decreased with the increasing sulfur loading,when the loading of accelerator NS was fixed. The mechanical properties of ENR25 vulcanizates increased. However,the hot-air aging and thermal-oxidative stability for ENR25 decreased with the increasing addition of sulfur.
作者
杨昌金
廖禄生
彭政
王兵兵
林宏图
许逵
钟杰平
YANG Chang-jin;LIAO Lu-sheng;PENG Zheng;WANG Bing-bing;LIN Hong-tu;XU Kui;ZHONG Jie-ping(Chinese Agricultural Ministry Key Laboratory of Tropical Crop Product Processing,Agricultural Product Processing Research Institute,Chinese Academy of Tropical Agricultural Sciences,Zhanjiang 524001,Guangdong,China)
出处
《合成材料老化与应用》
2018年第5期24-26,共3页
Synthetic Materials Aging and Application
基金
海南省自然基金资助(517247)
公益性行业(农业)科研专项经费资助(201403066)
中国热带农业科学院基本科研业务费专项资金(1630122017006)
农业部热作技术试验示范专项(2130106)
关键词
硫磺
环氧化天然橡胶
力学性能
耐热空气老化
sulfur
epoxidized natural rubber
mechanical property
hot-air aging property
