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甜菜碱对异戊橡胶热降解性能的影响
The Influence of Betaine on Thermal Degradation Properties of Polyisoprene Rubber
【摘要】 采用热重分析法研究氮气气氛下甜菜碱对异戊橡胶(IR)热降解性能的影响。结果表明:添加甜菜碱不会改变IR的热降解机理;添加甜菜碱的IR胶料的起始降解温度、最大降解温度和反应活化能均比未添加甜菜碱的IR胶料高,表明甜菜碱提高了IR胶料的热稳定性。
【Abstract】 The effects of betaine on thermodegradation properties of the polyisoprene rubber(IR) were studied by thermogravimetry analysis(TG) in nitrogen atmosphere.The results showed that after added with betaine,the thermal degradation mechanism of IR has not changed,the initial temperature of mass loss,the peak temperature of mass loss and the reaction activation energy of IR are higher than those of compound IR without betaine.The thermal stability of IR is improved by betaine.
【关键词】 甜菜碱;
异戊橡胶;
热降解;
动力学;
热重分析;
差热分析;
【Key words】 betaine; polyisoprene rubber; thermal degradation; kinetics; TG; DTG;
【Key words】 betaine; polyisoprene rubber; thermal degradation; kinetics; TG; DTG;
【基金】 海南省自然科学基金项目(511109);海南大学青年基金项目(qnjj1172)
- 【文献出处】 橡胶科技 ,Rubber Science and Technology , 编辑部邮箱 ,2013年09期
- 【分类号】TQ333.3
- 【被引频次】1
- 【下载频次】59