Dynamic Mechanical Analysis (DMA)- Polymer Characterization

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Dynamic Mechanical Analysis (DMA) is a frequently used technique in materials characterization. It is most useful for studying the viscoelastic behavior of polymers. DMA mechanically deforms a sample and measures the sample response as a function of temperature, time, frequency and amplitude. The DMA measurements are used mainly to determine glass transition temperature, modulus, damping behavior, relaxation behavior, molecular interactions, creep recovery, degree of cross linking, crystallinity, and effect of fillers on material’s properties.
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10 июл 2024

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Комментарии : 40

@bobakkhoshnazar5994 2 года назад

Thank you so much. It was the most understandable method to describe DMA (which is so hard to understand in the beginning). It was amazing and so useful

@PolymerWorld 2 года назад

Thanks for your feedback. Glad it was helpful!

@ACarlosA 4 года назад

Thank you so much for this video! That was a great explanation. This was really helpful for my Characterization class.

@PolymerWorld 4 года назад

Happy to help......

@manishmamgain8050 Год назад

This is what i was looking for Thank you so much for your lovely content

@PolymerWorld Год назад

Happy to help! Thanks for the feedback.

@komlalebu8333 4 года назад

Thanks for the content

@PolymerWorld 4 года назад

Thanks for watching!

@phanindraravi2367 Год назад

thank you for your great explanation

@PolymerWorld Год назад

Glad it was helpful!

@kandyajith 3 года назад

Thanks a lot. great explanation

@PolymerWorld 3 года назад

Thanks for the feedback.

@ayazmubaraka2316 6 месяцев назад

Your lecture is very helpful to understand stand my analytical works

@PolymerWorld 6 месяцев назад

Thanks for the feedback.

@kmfhasan4441 4 года назад

Great explanation

@PolymerWorld 4 года назад

Glad it was helpful!

@mechsparks 2 года назад

Wonderful video

@PolymerWorld 2 года назад

Thanks for feedback!

@nikhildhore5197 3 года назад

This year XE ppr was very out. Numerical was tough.

@usamakhalid2227 4 месяца назад

Informative

@PolymerWorld 4 месяца назад

Thanks for the feedback.

@aos_studio 10 месяцев назад

Thank you so much!! This lecture was so clear and helped me understand things I couldn't by reading only. A melody to my ears!

@PolymerWorld 10 месяцев назад

Thanks for the feedback. Glad it was helpful.

@erickcamacho136 4 года назад

How can I determinate the melting point on a typical DMA Scan?

@PolymerWorld 4 года назад

From a typical DMA scan, onset of melting of a polymer can be measured as DMA works by applying an oscillating force to the material and measuring resultant displacement of the sample. Melting of the polymer can contaminate the instrument so the sample is heated below its melting point. To avoid contamination materials pockets or holders are used to measure melting point. tan delta vs time plot gives melting point of polymer Although DSC is the most widely used technique to detect and measure the melting temperatures of polymers.

@shaikshakeeurrahaman1388 8 месяцев назад

Thank you so much for your detailed explanation. Will the result analysis be the same for other materials too or just only restrained to the polymers only? I want to apply the same for Cement Asphalt Mortars? So will it be applicable or not?

@PolymerWorld 8 месяцев назад

Analysis will remain the same, only the experimental conditions and magnitude of deformation will be different for different materials.

@shaikshakeeurrahaman1388 8 месяцев назад

@@PolymerWorld Thanks for your kind info

@vittoriocarino 7 месяцев назад

someone can explain to me why loss modulus decrease in rubbery state

@BC-yr6eg 3 года назад

👍👍🙏🏼

@lemtalsiinas8702 3 года назад

Can you prose me a book that's more focused on this area at live for my thesis. thank youuuuuu

@PolymerWorld 3 года назад

The video content is not from a particular book but you may consult Dynamic Behavior of Materials by Marc A. Meyers and Introduction to Impact Dynamics By T. X. Yu, Xinming Qiu for this and related topic.