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  1. JosephMatt

    How to perform a stress relaxation experiment for polymers by DMA

    I'll perform a stress relaxation experiment by DMA to obtain the relaxation modulus and the relaxation spectrum. The samples are some kinds of polystyrene (PS), Tg is around 105 oC. The instrument is TA Q800 DMA. Question: Should I set the test temperature near Tg so that it can be deformed...

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