硅橡胶的结晶行为及动力学研究  

Study on Crystallization Behavior and Kinetics of Silicon Rubber

作　　者：王鑫 李超芹[1] WANG Xin;LI Chaoqin(Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]青岛科技大学高性能聚合物及成型技术教育部工程研究中心,山东青岛266042

出　　处：《橡胶工业》2023年第5期330-335,共6页China Rubber Industry

基　　金：山东省自然科学基金资助项目(ZR2016XJ001)。

摘　　要：采用差示扫描量热(DSC)仪测试硅橡胶在温度变化过程中的热行为,并对硅橡胶的非等温结晶动力学和等温结晶动力学进行研究。结果表明:硅橡胶在升温过程中存在冷结晶现象;在降温过程中,结晶峰温度随着降温速率的增大向低温方向移动;等温结晶温度越低,结晶速率越快;Mo法和Avrami法分别适用于硅橡胶的非等温结晶动力学和等温结晶动力学分析。The thermal behavior of silicone rubber in the process of temperature change was studied by using differential scanning calorimeter(DSC),and the non-isothermal crystallization kinetics and isothermal crystallization kinetics of silicone rubber were investigated.The results showed a cold crystallization phenomenon during the heating process of silicone rubber.During the cooling process,the crystallization peak temperature moved to the low temperature direction with the increase of the cooling rate.Moreover,the lower the isothermal crystallization temperature was,the faster the crystallization rate was.It was also found that Mo method and Avrami method were suitable for the analysis of non-isothermal crystallization kinetics and isothermal crystallization kinetics of silicone rubber,respectively.

关 键 词：硅橡胶 差示扫描量热法 冷结晶 非等温结晶动力学 等温结晶动力学 

分 类 号：TQ333.93[化学工程—橡胶工业]