Treatment of Cotton Fabrics by Ammonium Palmitate in a Supercritical CO2 Medium

Experimental results on the solubility of ammonium palmitate as a potential fabric water-repellent agent in supercritical carbon dioxide (SC-CO 2 )—pure and modified with acetone and dimethyl sulfoxide—are presented. The measurements are performed at temperatures 318.2 and 328.2 K in the pressure ra...

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Bibliographic Details
Published in:Russian journal of physical chemistry. B 2017-12, Vol.11 (7), p.1078-1088
Main Authors: Zakharov, A. A., Jaddoa, Ameer Abed, Bilalov, T. R., Gumerov, F. M.
Format: Article
Language:English
Subjects:
Acetone
Carbon dioxide
Chemistry
Chemistry and Materials Science
Contact angle
Cotton
Cotton fabrics
Dimethyl sulfoxide
Equations of state
Fabrics
Hydrophobicity
Physical Chemistry
Solubility
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Summary:Experimental results on the solubility of ammonium palmitate as a potential fabric water-repellent agent in supercritical carbon dioxide (SC-CO 2 )—pure and modified with acetone and dimethyl sulfoxide—are presented. The measurements are performed at temperatures 318.2 and 328.2 K in the pressure range from 10.0 to 32.5 MPa in a dynamic regime. The experimental solubility data are described using the Peng–Robinson equation of state. The results of treatment of various types of cotton fabrics by ammonium palmitate in SC-CO 2 are presented. The contact (wetting) angle of the treated samples is determined and the increase in their hydrophobicity is demonstrated.
ISSN:1990-7931
1990-7923
DOI:10.1134/S199079311707020X