I want to make a 6% solution of Texin RxT85A in THF. I weighed the necessary amount of Texin resin and mixed at room temperature with THF with the help of a wooden stick, this did not work at all. Then I put the container on a magnetic stirrer for about 15 minutes, it did not seem to work. Afterwards, I tried an ultrasonic bath and a little bit of heat ( about 40 Celcius), but it seems that the resin completely swelled and fused into one piece.
What could I be doing wrong? Am I supposed to heat up the THF first and then add the resin? What should the temperature be(THF boiling point is 66 Celcius) for the Texin to dissolve completely? Should I have just used the magnetic stirrer for a longer time? I would really appreciate the help. Thank you!
Solubility of TPU in THF is not good. Why you want to solve TPU in THF? TPU might be solved in DMF or DMAc.
For anyone that might be interested, it turns out this mixture needed to be mixed over a longer period of time. I put the container on a roller shaker for about 6-7 hours and the resin was completely dissolved. I did not have to heat or do anything else.
Masakazu Kageoka This TPU-THF mix was already a solution that I was using in application, but my company had a supplier for it. Then I wanted to mix the solution myself so I did not look for a better solvent or an alternative, I just wanted to figure out how to do it. But thank you for your answer anyway!
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