Abstract
Measurements have been made of the rate of removal of a solid organic film (phenanthrene) from the surface of a rotating disk using emulsions containing water, the nonionic surfactant Tween 20, and d-limonene as the organic phase. The results show that phenanthrene removal initially occurs by the uptake of phenanthrene into the emulsion drops as small aggregates. Simultaneously, the organic phase penetrates into the phenanthrene film, diminishing the adhesive force between the film and the substrate. After sufficient time, the phenanthrene film detaches from the rotating disk surface as a solid. This detachment mechanism accounts for the vast majority of the phenanthrene removal (~90%). Initial solubilization rates were analyzed using two solubilization models. Both models assume that phenanthrene removal occurs via a mass transfer limited removal of phenanthrene-laden emulsion drops from the phenanthrene film surface into the bulk solution. One model treats the emulsion as homogeneous while the other accounts for the finite size of the emulsion droplets. The latter model was also used to relate the flux of organic phase impacting the phenanthrene film to the detachment times. (C) 2000 Academic Press.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 344-358 |
| Number of pages | 15 |
| Journal | Journal of Colloid and Interface Science |
| Volume | 228 |
| Issue number | 2 |
| DOIs | |
| State | Published - Aug 15 2000 |
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Keywords
- Cleaning
- Emulsion
- Phenanthrene
- Rotating disk
- Solubilization
ASJC Scopus subject areas
- Colloid and Surface Chemistry
- Physical and Theoretical Chemistry
- Surfaces and Interfaces
Cite this
Removal of solid organic films from rotating disks using emulsion cleaners. / Kabin, J. A.; Withers, S. T.; Grant, C. S.; Carbonell, R. G.; Saez, Avelino E.
In: Journal of Colloid and Interface Science, Vol. 228, No. 2, 15.08.2000, p. 344-358.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Removal of solid organic films from rotating disks using emulsion cleaners
AU - Kabin, J. A.
AU - Withers, S. T.
AU - Grant, C. S.
AU - Carbonell, R. G.
AU - Saez, Avelino E
PY - 2000/8/15
Y1 - 2000/8/15
N2 - Measurements have been made of the rate of removal of a solid organic film (phenanthrene) from the surface of a rotating disk using emulsions containing water, the nonionic surfactant Tween 20, and d-limonene as the organic phase. The results show that phenanthrene removal initially occurs by the uptake of phenanthrene into the emulsion drops as small aggregates. Simultaneously, the organic phase penetrates into the phenanthrene film, diminishing the adhesive force between the film and the substrate. After sufficient time, the phenanthrene film detaches from the rotating disk surface as a solid. This detachment mechanism accounts for the vast majority of the phenanthrene removal (~90%). Initial solubilization rates were analyzed using two solubilization models. Both models assume that phenanthrene removal occurs via a mass transfer limited removal of phenanthrene-laden emulsion drops from the phenanthrene film surface into the bulk solution. One model treats the emulsion as homogeneous while the other accounts for the finite size of the emulsion droplets. The latter model was also used to relate the flux of organic phase impacting the phenanthrene film to the detachment times. (C) 2000 Academic Press.
AB - Measurements have been made of the rate of removal of a solid organic film (phenanthrene) from the surface of a rotating disk using emulsions containing water, the nonionic surfactant Tween 20, and d-limonene as the organic phase. The results show that phenanthrene removal initially occurs by the uptake of phenanthrene into the emulsion drops as small aggregates. Simultaneously, the organic phase penetrates into the phenanthrene film, diminishing the adhesive force between the film and the substrate. After sufficient time, the phenanthrene film detaches from the rotating disk surface as a solid. This detachment mechanism accounts for the vast majority of the phenanthrene removal (~90%). Initial solubilization rates were analyzed using two solubilization models. Both models assume that phenanthrene removal occurs via a mass transfer limited removal of phenanthrene-laden emulsion drops from the phenanthrene film surface into the bulk solution. One model treats the emulsion as homogeneous while the other accounts for the finite size of the emulsion droplets. The latter model was also used to relate the flux of organic phase impacting the phenanthrene film to the detachment times. (C) 2000 Academic Press.
KW - Cleaning
KW - Emulsion
KW - Phenanthrene
KW - Rotating disk
KW - Solubilization
UR - http://www.scopus.com/inward/record.url?scp=0034664046&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034664046&partnerID=8YFLogxK
U2 - 10.1006/jcis.2000.6832
DO - 10.1006/jcis.2000.6832
M3 - Article
AN - SCOPUS:0034664046
VL - 228
SP - 344
EP - 358
JO - Journal of Colloid and Interface Science
JF - Journal of Colloid and Interface Science
SN - 0021-9797
IS - 2
ER -