Solution and dope preparation

Solution/dope preparation by magnetic stirring

Solution/dope preparation by mechanical stirring

Solution/dope preparation by Ultrasound bath

Solution and dope stability study 

Qualitative inspection

Quantitative inspection by spectrophotometric testing. Preliminary investigation of NIPS process by analysis of coagulation bath to determine eventual releasing during the polymer precipitation and membrane formation

Polymer screening : support to design polymers  in membrane application

1. Moisture content, MW, TGA and DSC 
2. Polymer solubility study in common solvent (NMP, DMAc , DMF)
3. Polymer solubility study in Green solvent (DMI, Polar Clean)  
4. Water as non solvent 
5. Polymer leaching
6. Polymer-polymer compatibility
7. Polymer-additive compatibility
8. Hydrophilicity assessment (ie: CAB, Ternary phase diagram)

      9. Chemical resistance 

      10. Tensile properties

     11. Long term solution stability