摘要
采用环氧化天然橡胶(ENR)原位接枝SiO2母胶制备NR/ENR/SiO2复合材料,考察NR/ENR/SiO2复合材料的力学性能和阻尼特性。结果显示,添加环氧化天然橡胶原位接枝SiO2母胶的NR/ENR/SiO2复合材料比单独添加环氧化天然橡胶和SiO2的样品分散性更好、硫化速率更高、力学性能升高明显,且耐老化性能得到改善。添加ENR原位接枝SiO2母胶的NR/ENR/SiO2复合材料与对照样相比,玻璃化转变温度升高,有效阻尼温域扩宽,阻尼性能提高。
NR/ENR/SiO2 composites were prepared with in-situ grafted epoxidized natural rubber/SiO2 masterbatch.The mechanical properties and damping characteristics of NR/ENR/SiO2 composites were investigated.The results show that the NR/ENR/SiO2 composites with in-situ grafted epoxidized natural rubber/SiO2 masterbatch have better dispersibility,increased vulcanization rate,and better mechanical properties than the samples with ENR and silica added separately,and the aging property was improved.Compared with the control sample,the NR/ENR/SiO2 composite with in-situ grafted ENR/SiO2 masterbatch has higher glass transition temperature,wider effective damping temperature range,the damping performance was improved.
作者
刘宏超
王启方
何东宁
李高荣
孙中锐
彭政
余和平
LIU Hong-chao;WANG Qi-fang;HE Dong-ning;LI Gao-rong;SUN Zhong-rui;PENG Zheng;YU He-ping(Guangdong Provincial Key Laboratory of Natural Rubber Processing,Agricultural Products Processing Research Institute of Chinese Academy of Tropical Agricultural Sciences,Zhanjiang 524001,China;School of Chemistry and Chemical Engineering,Lingnan Normal University,Zhanjiang 524001,China)
出处
《应用化工》
CAS
CSCD
北大核心
2020年第10期2511-2514,共4页
Applied Chemical Industry
基金
现代农业产业技术体系建设专项资金资助(CARS-34-JG2)
中国热带农业科学院基本科研业务费专项资金(1630122020006)
广东省天然橡胶加工重点实验室资助(2019B121203004)
海南省自然科学基金(519QN299)。
关键词
天然橡胶
环氧化天然橡胶
二氧化硅
原位接枝
阻尼特性
力学性能
natural rubber
epoxidized natural rubber
SiO2
in-situ graft
damping properties
mechanical properties
