Effect of a short chain alcohol on activity and spreading performance of a superspreading trisiloxane surfactant
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F25%3A43933047" target="_blank" >RIV/60461373:22340/25:43933047 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S000925092500404X?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S000925092500404X?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ces.2025.121581" target="_blank" >10.1016/j.ces.2025.121581</a>
Alternative languages
Result language
angličtina
Original language name
Effect of a short chain alcohol on activity and spreading performance of a superspreading trisiloxane surfactant
Original language description
This study examines the effect of short chain alcohols on the spreading of aqueous solutions of a superspreading trisiloxane surfactant on a polymeric substrate. In the absence of alcohol, fast spreading (superspreading) was observed with the spread area being proportional to time. An increase of alcohol concentration resulted in a slowing down of the spreading kinetics. The spreading exponent reached 0.25 at 0.05 mol fraction of 1-propanol; this value is close to that observed for the spreading of pure liquids. This behaviour was explained by a decrease of surfactant activity in the presence of alcohol and by much faster adsorption of the alcohol on the expanding surface leading to a considerable decrease of the Marangoni stresses near the leading edge of spreading. The obtained results confirm the importance of Marangoni stresses in surfactant enhanced spreading and have potential for controlling the spreading rate of aqueous formulations on hydrophobic surfaces.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20401 - Chemical engineering (plants, products)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
CHEMICAL ENGINEERING SCIENCE
ISSN
0009-2509
e-ISSN
1873-4405
Volume of the periodical
311
Issue of the periodical within the volume
March 2025
Country of publishing house
GB - UNITED KINGDOM
Number of pages
5
Pages from-to
nestránkováno
UT code for WoS article
001459424800001
EID of the result in the Scopus database
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