温度和频率对BR/SBR硫化胶阻尼因数和动刚度的影响

在不同温度和频率下对BR/SBR硫化胶的阻尼因数（即损耗因子，用tanδ表示）和动刚度进行研究。结果表明：在各个温度下， tanδ和动刚度并未对80～130 Hz的频率表现出很强的依赖性；在80～130 Hz的频率下，tan tanδ和动刚度随温度的变化而发生规律性改变，tanδ随温度的升高而降低，动刚度则是先减小后增大。;The damping coefficient（tanδ） and dynamic stiffness of BR/SBR vulcanizates at different temperature and frequency were studied.The results showed that，neither tanδ nor dynamic stiffness exhibited strong dependence on the frequency from 80 Hz to 130 Hz.At a given frequency，as the temperature raised，tanδ increased,and the dynamic stiffness reduced firstly and then increased