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采用DMA对硫化橡胶进行表征
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DMA measures the modulus (stiffness) and damping (energy dissipation) properties of a material as it is deformed under a periodic stress. These measurements provide quantitative and qualitative information about the performance of materials. DMA is particularly useful for evaluating elastomeric materials that exhibit time, frequency, and temperature effects on mechanical properties because of their viscoelastic nature. The determination of the storage modulus and glass transition temperature is often used to characterize the cure profile of rubber materials. Differences in these properties correspond to differences in cure. DMA is used to examine the cure properties of two rubber samples each cured for different lengths of time. |
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2016-06-30 15:58:54, 445.44 K
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