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Journal of Sol-Gel Science and Technology
Erschienen in: Journal of Sol-Gel Science and Technology 1/2011

01.04.2011 | Original Paper

Preparation of durable superhydrophobic surface by sol–gel method with water glass and citric acid

verfasst von: Jinyun Liu, Wenqi Huang, Yanjun Xing, Rong Li, Jinjin Dai

Erschienen in: Journal of Sol-Gel Science and Technology | Ausgabe 1/2011

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Abstract

Durable superhydrophobic surface on cotton fabrics has been successfully prepared by sol–gel method. Cellulose fabric was first coated with silica sol prepared with water glass and citric acid as the acidic catalyst. The silica coated fabric was then padded with hydrolyzed hexadecyltrimethoxysilane afterwards obtaining low surface energy. Water contact angle and hydrostatic pressure were used to characterize superhydrophobicity and washing durability. Scanning electron microscopy was used to characterize the surface morphology changes after certain washing times. All results showed good durable hydrophobicity on cellulose fabrics. In addition, the influence of citric acid and sodium hypophosphite (NaH2PO2) on the durability of hydrophobicity was also investigated. The durability of treated cotton improved with the increase of concentration of citric acid in the presence of NaH2PO2. It could be concluded that citric acid acted as multi-functional heterogeneous grafting chemicals to improve washing durability of hydrophobicity by forming the ester bonds between cotton fabric and silica sol and improved the durability of hydrophobicity.
Vorheriger Artikel Comparative study of the structural, optical, and electrical properties of CuAlO2 thin films on Al2O3 and YSZ substrates via chemical solution deposition
Nächster Artikel Preparation and characterization of nanocrystalline CoFe2O4 deposited on SiO2: in situ sol–gel process

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Metadaten
Titel
Preparation of durable superhydrophobic surface by sol–gel method with water glass and citric acid
verfasst von
Jinyun Liu
Wenqi Huang
Yanjun Xing
Rong Li
Jinjin Dai
Publikationsdatum
01.04.2011
Verlag
Springer US
Erschienen in
Journal of Sol-Gel Science and Technology / Ausgabe 1/2011
Print ISSN: 0928-0707
Elektronische ISSN: 1573-4846
DOI
https://doi.org/10.1007/s10971-010-2349-8

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