I am a DSC instrument user and trainer. I highly recommend this video, if you are about to use DSC for polymer studies. Neglect the video quality! believe me, it is worth it! Thank you for sharing this video!
@solocod4993
3 жыл бұрын
Can i have more source to interpret the DSC data.
@mariamtemitopearowona9514
2 жыл бұрын
Thank you
@JadAzido
6 жыл бұрын
Great video! Regardless of the 3 frames per second framerate
@Organicarivu
6 жыл бұрын
This is very much helpful in learning DSC... This is really awesome video for beginners.
@prashantadki4046
5 ай бұрын
This video is the reason I could quickly and easily understand DSC for my masters project, only lasting for 3 months. Saved my thesis, to be honest!
@bina5580
5 жыл бұрын
Thank you so much ! That was like 2 hrs worth of 20 mins :D
@sarveshkumargupta6988
4 жыл бұрын
Such a nice lecture, it clears many doubts which were in my mind.
@mdsakinulislam2854
5 жыл бұрын
Excellent discussion on TGA and DSC fundamentals. Thanks a lot to Robert Jones !!!
@mustikaselaseh285
4 жыл бұрын
I've been working with dsc for few years.. you got all the points there. It could saved me years of learning by experience if I get to watch this video earlier. Thank u.
@solocod4993
3 жыл бұрын
Can I have more sources to interpret DSC data
@preciousamaechi689
7 ай бұрын
My notes has become ever full and brimming with information. I think anyone watching this should do so while taking notes.
@cesnopereiralorenzodossant6180
Жыл бұрын
Let me ask, can i transform my result dsc in heat flow (W/g) and temperature to calculated about enthalphy of %cristanility? i have a problem because in my result i dont know about a mass change, please help me thank you
@garciansmith1460
3 жыл бұрын
I'm a little confused at around the 6 minute mark. Why would a polymer crystallize as you are heating it up? Don't thinks become more and more amorphous/fluid-like as you heat them up?
@KhaLed-pb4pu
5 жыл бұрын
Thanks, but the crystallisation peak example was not very clear... Could you give an example? You said it goes from an amorphous to a semi-crystalling material with increasing temperature... Does this mean that when heat is applied to starch in its semi-crystalline structure, we will have an EXOthermic reaction??
@dineshmule6986
2 жыл бұрын
Excellent explanation. Really helpful. 💯 ❤️
@ncsctsr
Жыл бұрын
Respected sir I have a DSC thermogram of maltose monohydrate having one endothermic peak just below the melting point. Can please explain what this peak indicate?
@aslamsajad1112
2 жыл бұрын
Thanks a lot for this…🤩
@ankitdere9173
3 жыл бұрын
Hi Robert I have got very strange type of curves for Cashewnut shell phenolic resin. I could not find out curing temperature.
@lf198
5 жыл бұрын
why is the quality so good?
@harishthakur5124
Жыл бұрын
Best teacher
@gn6675
Жыл бұрын
thank you
@muhammadumerfarooq2895
4 жыл бұрын
Excellent and amazing teaching style...Thanks sir
@aleisha8757
3 жыл бұрын
Wow, probably one of the most useful lectures i've come cross. Thank you very much!
@psubbareddy1959
Жыл бұрын
Hello can explain
@Manitham-vk8er
Жыл бұрын
Thank you, you covered the basic and important points for beginners.....
@ayazmubaraka2316
Жыл бұрын
I etched this videos many times. Every time I learned domeo
@nagellaraveendrababu7883
Жыл бұрын
very insightful.....!! Thank you
@tylerpennell434
3 жыл бұрын
Definitely not deep stone crypt... move along.
@youcef4172
7 жыл бұрын
Thanks a lot, it's a really helpful video
@mezbahuddin1402
2 жыл бұрын
Would you please explain the differences between DTG and DTA?
@mustafayildiz4943
4 жыл бұрын
Sis kebap structure, what a creative term :) Great video, thanks a lot.
@jingyaogan3033
2 жыл бұрын
Very good video and make me get better understanding of DSC
@إلهام-ق2و
2 жыл бұрын
Teacher you have a DSC in French!!
@shimonamalik2847
7 жыл бұрын
this video was perfect! helped so much
@aaa7724
4 жыл бұрын
Hello. Dr Jones. Is there any data base about materials linked with their calorimetry? Currently, I am working to idenfify unknowledge materials using DSC techniques. Thank you in advance
@LM53180
3 жыл бұрын
Hi, you can can check the polymer handbook, which is a comprehensive database that gives information on mechanical properties, thermal properties, electrical properties, and chemical properties.
@viscerataken
7 жыл бұрын
This is very helpful. I come across with this video because I have some doubts. Would be possible to contact you to ask you some staffs? Thanks a lot in advance
@melearn-utrgvley2252
7 жыл бұрын
Yes you can contact us at melearn.utrgv@gmail.com.
@luannamoura5428
6 жыл бұрын
great video! super simple and clear!
@A_Box
6 жыл бұрын
Question here: How come that the signal is recorded in units of energy per mass per degree per second [J/m°Cs=W/m°C] and we integrate that with respect to temperature [°C] we somehow end up with just energy per mass [J/m]?
@LM53180
7 жыл бұрын
great video
@sukantadas5481
6 жыл бұрын
Is it heat release of the sample or net heat supply to the sample in the y-axis ?
@Danial-mm6ze
6 жыл бұрын
please can you explain the TGA analysis especially the weight loss of samples
@Bibidance2013
7 жыл бұрын
very helpful vídeo. but what to do when we need to only use the first run? Due to acess the actual TG of a composite (to realise the degree of cure of a process) and in the first run we have a thermogram where is difficult to find the TG.
@melearn-utrgvley2252
7 жыл бұрын
There are a couple of possible issues that I can think of, and probably several more that are not. If the degree of cure is too low, your Tg may be below your minimum temperature of the scan. If you have a high fiber/filler volume fraction, the Tg transition can appear pretty weak and you may need to play with your vertical scale. Finally, significant residual cure may obscure the Tg. It isn’t always nice and separated from the Tg like I show in the sketches. If you had a reference scan of a fully cured system and a completely uncured system, you could compare to those. TA instruments has a bunch of helpful tech and application notes on their website and if memory serves, one is on measuring degree of cure in the DSC. Hope one of those helps… Dr Robert E. Jones Professor Department of Mechanical Engineering (956) 665-5019 robert.jones@UTRGV.edu Brownsville • Edinburg • Harlingen
@LM53180
7 жыл бұрын
Hi there, yes TA tech tips are very helpful. If you have problems seeing a Tg, you can increase the heating rate, according to ASTM this may help. Also, you can use modulated DSC to separate the reversible heat flow associated with Tg.
@Bibidance2013
7 жыл бұрын
At our company we follow the ISO 11357. In this standard, heating rate defined is 20 K/min.
@Bibidance2013
7 жыл бұрын
I really appreciate your time, thank you. I think that in my case, it can be related with the high fiber volume of samples. Also, most of the times I cannot get a clean tansition, as there are several effects affecting the graph. There is no smooth line.. production department not always understands when we can not give them a temperature value as we can not read TG.
@debarshinath9930
3 жыл бұрын
//Can exothermic peak denote melting point?? please help
@shamitakohli6443
4 жыл бұрын
Awesome Sir, it helped a lot
@yashodiptakore7599
6 жыл бұрын
Good explanation
@jaj2629
3 жыл бұрын
good video
@chetanswaroop3598
5 жыл бұрын
Very informative!! Many thanks for such a valuable presentation.
@famasymas7
7 жыл бұрын
Very good video. Thanks for the explanation Dr. Jones.
@iftekharahmed5372
4 жыл бұрын
Excellent
@AliUchiha94
5 жыл бұрын
thanks alot
@mehtashirley
4 жыл бұрын
amazing
@sivashankari8118
7 жыл бұрын
Thank you for the clear explanation.. Helped a lot
@avaes5260
4 жыл бұрын
amazing, thank you so much
@al-ajalyaimamas6679
6 жыл бұрын
Excellent video
@douglasmonteiro4203
6 жыл бұрын
You helped a lot. Thanks
@بنتليبيا-ز2ك
7 жыл бұрын
very nice
@stevearaujo6543
7 жыл бұрын
great presentation
@uceee1
6 жыл бұрын
03:22 Isnt that the other way around? Mobility of molecules increases with higher temp rather than decreases?
@artimis15
4 жыл бұрын
He was saying that the temperature of the glass transition increases if it is harder to move the molecules, because there is more energy needed for the transition. If the transition is at a lower temperature that means there is less energy needed for the transition.
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