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80~130Hz的频率表现出很强的依赖性;在80~130Hz的频率下,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.