Freezing transition in porous materials revised
✍ Scribed by A. Khokhlov; R. Valiullin; J. Kärger
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 66 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0730-725X
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📜 SIMILAR VOLUMES
A theory based on thermodynamics will be presented by which the pressure in the pore structure of wet porous materials can be deduced during freezing. The pore structure is partly filled with liquid and inert gases such as air. The theory is based solely on thermodynamic relationships; no knowledge
Freeze drying is a process whereby solutions are frozen in a cold bath and then the frozen solvents are removed via sublimation under vacuum, leading to formation of porous structures. Pore size, pore volume and pore morphology are dependent on variables such as freeze temperature, solution concentr
## Abstract The formation and distribution of condensed vapor during the freeze drying of porous polymer hydrogels are numerically evaluated. The sublimation‐condensation model is developed by CFD simulation to investigate phase change in the freeze drying process. Scanning electron microscopy (SEM