Abstract
Polyurethane asymmetric membranes were prepared by wet coagulation process from the PU/DMF/Span-80/OT-70 solutions, and the morphological features of cross section of the membranes were obtained by scanning electron microscopy. The influences of the non-ionic hydrophobic surfactant Span-80 and the anionic hydrophilic surfactant OT-70 on the morphology of the membranes, the mechanical properties and the water vapor permeability were studied. The formation mechanism of the membrane microstructure from different PU/DMF/surfactant systems was discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 15-18 |
| Number of pages | 4 |
| Journal | Journal of Dong Hua University (English Edition) |
| Volume | 19 |
| Issue number | 2 |
| Publication status | Published - 1 Jun 2002 |
Keywords
- Macrovoid
- Membrane formation
- Polyurethane
- Spinodal decomposition
ASJC Scopus subject areas
- Polymers and Plastics
- Industrial and Manufacturing Engineering