Polyurethane dissolving problem

Toluene and DMF dichloropenhane can be dissolved, and the premise does not cross -link.I don't understand what solvent can be used for the specific test

Polyurethane powder?Uh.Dare to ask what high -end polyurethane is this?

Do you dare to say a bit? You do n’t tell how to help you, rest assured that no one will care about your formula.One thing that can be determined, insoluble is the cross -linking, and the thermoplasticity should be dissolved.

It is estimated that it is cross -linking, and it is dissolved with dmf. Even if it cannot be dissolved at room temperature, it can still dissolve after heating.

How do you have no solvent during the synthesis process

If you still have a drama in TPU, don't think about the cross -linking as a CPU.

Ask the solvents that you use to dissolve