苯基硅橡胶的动态力学性能研究  

Dynamic Mechanical Properties of Phenyl Silicone Rubber

作　　者：郝敏[1] 黄艳华[1] 苏正涛[1] 王景鹤[1] 

机构地区：[1]北京航空材料研究院,北京100095

出　　处：《材料工程》2012年第10期35-38,53,共5页Journal of Materials Engineering

摘　　要：用橡胶加工分析仪(RPA2000)表征了SE系列苯基硅橡胶在不同应变、温度、频率下的动态力学性能。结果表明:在不同应变下,SE系列硫化胶随应变的增大弹性模量G′减小,损耗因子tanδ略有上升,混炼胶的黏性扭矩S″增大;在不同温度下,损耗因子tanδ随温度的升高而降低;在不同频率下,混炼胶的损耗因子tanδ随频率的升高而降低,硫化胶的损耗因子tanδ随频率的升高而升高,混炼胶的损耗因子比硫化胶的损耗因子大得多。The dynamic mechanical properties of the SE series phenyl silicone rubber under the different strain,temperature and frequency were characterized by rubber processing analyzer.The results show that with the increasing of strain the elastic modulus G′ of the SE series vulcanized rubber decreases,that the tanδ increases slightly and that the viscous torque S″ of the SE series mixed compounds increases.The tanδ reduces with the increasing of temperature.With the increasing of frequency,tanδ of SE series mixed compounds decreases while tanδ of the vulcanized SE series increases;and tanδ of mixed compounds is much greater than vulcanizate’s.

关 键 词：苯基硅橡胶 弹性模量 弹性扭矩 损耗因子 动态力学性能 

分 类 号：TQ016.51[化学工程]