Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 138, Issue 23, Pages -Publisher
WILEY
DOI: 10.1002/app.50556
Keywords
composites; emulsion polymerization; fibers; inorganic polymers
Categories
Funding
- Transformation Program of Scientific and Technological Achievements of Jiangsu Provence (CN) [202002030223]
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This paper proposes a method of modifying the surface of cotton fiber to achieve super-hydrophobic properties, which can resist acid and alkali, have good selective adsorption performance and self-cleaning properties.
This paper proposes a method of directly modifying the surface of cotton fiber to achieve super-hydrophobic properties. The process was directly utilized the long-chain alkyl siloxane and the nano-SiO2 modified cotton cloth, which was simple to operate, low in cost and environmentally friendly. This study discussed the influence of solvent ratio, reactant content and ammonia content on hydrophobicity. The solvent ratio had the greatest influence, and the maximum water contact angle (CA) changes were70 degrees +/- 1 degrees. The maximum water CA of the superhydrophobic cotton fabric prepared after process selection was 162 +/- 1.5 degrees; it had good acid, alkali and salt resistance. After 24 h in a solution with a pH of 1-14, CA remained almost unchanged; After 144 h in a 3.5% salt solution, CA stabilized above 132 degrees; it had self-cleaning properties; it had good selective adsorption performance, which can quickly separate oil and water; it had good mechanical stability. After 300 times abrasion of sandpaper, which still shows hydrophobic properties.
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