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北京石油化工学院2026年研究生招生接收调剂公告
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[交流] DMA中的温度时间叠加原理

The linear viscoelastic properties of polymers are both time and temperature dependent. When considering a material for an application, many times we want to know how the viscoelastic properties will change over a long period of time (very low frequencies) such as months or even years. Other times, we want to know the viscoelastic properties under very high frequency (very short time) applications such as high speed impact strength. Often the response times of interest are inconveniently long or outside the measurable limits of analytical instruments. 
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