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Very interesting Dr. How can we replicate this behavior of Tg with TMA test? Thanks.
Yes, you can run temperature sweeps in your TMA machine at different frequencies to quantify this behavior for your specific materials.
For a typical silicone material, how much would you expect Tg to shift w.r.t. loading rate?
Hmm. I don't know, and it would take some time to dig up date for that. Can you test it experimentally?
@@PolymerFEM Thanks for your response. I have DMA data at 0.1Hz up to 10Hz, and I see several degrees change in Tg. I'm more interested to know how much Tg would shift at very low and very high freqs.
@@Benyamin_Gholami I typically see about 5 deg C change with decade of frequency (or strain rate).
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Very interesting Dr. How can we replicate this behavior of Tg with TMA test? Thanks.
Yes, you can run temperature sweeps in your TMA machine at different frequencies to quantify this behavior for your specific materials.
For a typical silicone material, how much would you expect Tg to shift w.r.t. loading rate?
Hmm. I don't know, and it would take some time to dig up date for that. Can you test it experimentally?
@@PolymerFEM Thanks for your response. I have DMA data at 0.1Hz up to 10Hz, and I see several degrees change in Tg. I'm more interested to know how much Tg would shift at very low and very high freqs.
@@Benyamin_Gholami I typically see about 5 deg C change with decade of frequency (or strain rate).