Estimation of the Stability of Foam Containing Hydrophobic Particles by Parameters in the Capillary Model
| Autor: | Motonobu Kato, Yasuo Torikata, Harutoshi Yoshimura, Toshimasa Yano, Hitoshi Kumagai |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Chemical substance
Chromatography Capillary action Time constant General Biochemistry Genetics and Molecular Biology law.invention chemistry.chemical_compound chemistry Magazine law Electrical resistivity and conductivity Volume fraction Particle lipids (amino acids peptides and proteins) cardiovascular diseases Polystyrene Composite material General Agricultural and Biological Sciences |
| Zdroj: | Agricultural and Biological Chemistry. 55:1823-1829 |
| ISSN: | 0002-1369 |
| Popis: | The effect of hydrophobic particles on foam stability was quantitatively evaluated by the parameters in the capillary model. Polystyrene particles were dispersed into an ovalbumin solution, foam then being produced by introducing air into the ovalbumin solution with polystyrene particles (OSP) through a spinneret. The electric conductivity at selected positions in the foam and the drained liquid height below the foam were measured at constant intervals, the measured electric conductivity being converted to the OSP volume fraction in the foam. The capillary model described the OSP leakage rate from the foam and OSP volume fraction in the foam. As the particle concentration increased, the ratio of the OSP volume fraction in the foam to the volume fraction of the Plateau border, and time constant for drainage, Tincreased. This result indicates that the hydrophobic particles used stabilized the foam. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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