Rosa Taurino, Maria Cannio, Stefano Martinuzzi, Stefano Caporali, Francesca Borgioli, Emanuele Galvanetto, Dino Boccaccini
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引用次数: 0
Abstract
This study explores the application of chitosan-based sol–gel coatings on textile fabrics to achieve multifunctional surfaces with enhanced hydrophobicity and stain resistance. Sol–gel solutions were prepared using chitosan, vinyltrimethoxysilane (VTMS), and tetraethyl orthosilicate (TEOS), with concentrations of 2 wt% and 5 wt%. Additionally, the effect of UV curing was investigated. The coatings were applied to pure cotton and synthetic polyester fabrics using dip-coating and digital deposition techniques. To ensure uniform deposition in the printing process, key solution properties including viscosity, density, and surface tension were optimized. The chemical and physical characteristics of the coatings were analyzed through FTIR and DSC, while SEM imaging, color measurements, water contact angle assessments, and stain and abrasion resistance tests were conducted to evaluate their impact on textile properties. The results demonstrated significant improvements in hydrophobicity, with water contact angles reaching up to 120° compared to non-functionalized textiles. The coatings also enhanced stain and abrasion resistance, exhibiting low friction coefficients and minimal degradation after multiple washing cycles. In the final phase of the study, we investigated the integration of the sol–gel technique with 3D inkjet printing to create films with a more uniform structure while preserving the hydrophobic properties of the coatings. These findings highlight the feasibility of using chitosan-based sol–gel solutions for textile functionalization, offering promising results for both conventional and digital application methods. This approach paves the way for advanced, eco-friendly, and multifunctional textile coatings.
期刊介绍：
The primary objective of the Journal of Sol-Gel Science and Technology (JSST), the official journal of the International Sol-Gel Society, is to provide an international forum for the dissemination of scientific, technological, and general knowledge about materials processed by chemical nanotechnologies known as the "sol-gel" process. The materials of interest include gels, gel-derived glasses, ceramics in form of nano- and micro-powders, bulk, fibres, thin films and coatings as well as more recent materials such as hybrid organic-inorganic materials and composites. Such materials exhibit a wide range of optical, electronic, magnetic, chemical, environmental, and biomedical properties and functionalities. Methods for producing sol-gel-derived materials and the industrial uses of these materials are also of great interest.
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