Creaming Rate of O/W Emulsion
-
- CHEN Enshen
- Department of Bioresource Science, Kagawa University
-
- GOHTANI Shoichi
- Department of Bioresource Science, Kagawa University
-
- NAKASHIMA Tadao
- Department of Chemistry, Industrial Research Institute of Miyazaki
-
- YAMANO Yoshimasa
- Department of Bioresource Science, Kagawa University
Bibliographic Information
- Other Title
-
- O/Wエマルションのクリーミング速度
- O W エマルション ノ クリーミング ソクド
Search this article
Abstract
By a membrane emulsification method, four kinds O/W emulsions with very narrow distribution of droplet size were prepared. The creaming rate of the emulsions for various volume fractions (φ) were measured accurately by the Image-Analysis Method. The obtained creaming rate did not agree with both the values calcurated by using Buscall's equation for monodisper sion of latex and those obtained by Uχ= Uο/ηsys, where Uο is Stoke's value for Newtonian fluid under gravity and ηsys is the viscosity of emulsion determined by Mooney's theoretical equation or Sherman's empirical equation. It was found that the creaming rate of the emulsion could be presented by the equation Uχ=Uο/exp (A [η] φ) for a wide range of φ, where [η] is the intrinsic viscosity of the emulsion and A is a correction coefficient for the individual intrinsic viscosity for emulsions with different radius. Furthermore, this eqation is also applicable to monodispersed hard spheres (latex) from 0 to 0.3 of φ.
Journal
-
- Journal of Japan Oil Chemists' Society
-
Journal of Japan Oil Chemists' Society 42 (12), 972-977, 1993
Japan Oil Chemists' Society
- Tweet
Details 詳細情報について
-
- CRID
- 1390001205335385728
-
- NII Article ID
- 10006944925
-
- NII Book ID
- AN00245435
-
- ISSN
- 0513398X
- 18842003
-
- NDL BIB ID
- 3866685
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed