For adding water as non-solvent additive to hydrophobe PVDF, at which step and with what condition should we add water to solution?
Should we add polymer after water mixed in solvent or we should first wait for the polymer to get mixed with solvent and then we add water?
What solvent do you want to use? It is more usual to dissolve polymer in the solvent and then add water in case of using water-miscible solvents.
Hello.
Thank you for reply.
My polymer solvent is Dimethylacetamide (DMAC).
For this solvent, at which step should we add water?
Also, please advise on "how" to add water into the solution.
I mean, the approach of adding water: should we add the entire water at once? Or, we should add it gradually with high dispersion?
And, what about the temperature of water?
You should add water gradually with high disspersion.
Please, read these papers for more information.Article Molecular elucidation of morphology and mechanical propertie...
Article Morphology of Microporous Poly(vinylidene Fluoride) Membrane...
Article Porous PVDF asymmetric hollow fiber membranes prepared with ...
Thank you.
I'll read the papers. if I had any questions, I will let you know.
I reviewed the papers.
Non of them have mentioned how to generate the "high dispersion".
Should we make such dispersion by intensive mixing?
Or, there are other techniques?
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