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Abstract

The surface of cotton (COT) and polyester (PET) fabrics was modified to create a water-repellent finishing by depositing a modified silica-based film using the sol-gel technique. TEOS (tetraethoxysilane)-based physically modified sols with 2% and 11% on weight fabric (o.w.f.) of hydrophobic additives were tested. N-propyltrimethoxysilane (C3), hexadecyltrimethoxysilane (C16) and 1H,1H,2H,2H-fluorooctyltriethoxysilane (FOS) were investigated as additives.

Furthermore, a low-temperature plasma pre-treatment was used to activate the COT and PET fabric surface to improve the sol-gel coating adhesion, resistance to abrasion and fastness to washing stresses.

A complete chemical/morphological (Fourier transform infrared, X-ray photoelectron spectroscopy, scanning electron microscopy) and physical characterization (abrasion and air permeability test) of treated samples was carried out. High values of θ (around 140°) on PET and COT samples were obtained with all additives used (C3, C16 and FOS) even at a low concentration (2%). Due to plasma pre-treatment, interesting water-repellent properties were achieved for PET (θ = 148°) treated with TEOS/FOS molar ratio 0.63 and for COT (θ = 140°) with TEOS/C16 molar ratio 0.63. The enhanced coating adhesion, due to plasma surface activation, was confirmed by abrasion and washing tests.

Keywords

surface modification coatings sol-gel plasma cotton polyester

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References

Bae

Min

Jeong

. Superhydrophobicity of cotton fabrics treated with silica nanoparticles and water-repellent agent. J Colloid Interface Sci 2004; 337: 170–175.

Wang

Fang

Cheng

. One-step coating of fluoro-containing silica nanoparticles for universal generation of surface superhydrophobicity. Chem Commun 2008; 7: 877–879.

Cappelletto E, Callone E, Campostrini R, et al. Hydrophobic siloxane paper coatings: the effect of increasing methyl substitution. J Sol-Gel Sci Technol 2012; 62(3): 441–452.

Cunha

Gandini

. Turning polysaccharides into hydrophobic materials: a critical review. Part 1. Cellulose 2010; 17: 875–889.

Tomšič

Simončič

Orel

. Sol-gel coating of cellulose fibres with antimicrobial and repellent properties. J Sol-Gel Sci Technol 2008; 47: 44–57.

Textor

Mahltig

. A sol-gel based surface treatment for preparation of water repellent antistatic textiles. Appl Surf Sci 2010; 256: 1668–1674.

Bozzi

Yuranova

Kiwi

. Self-cleaning of wool-polyamide and polyester textiles due to surface TiO2-rutile modification under daylight irradiation. J Photochem Photobiol A 2005; 172: 27–34.

Mejía

Marín

Restrepo

. Self-cleaning TiO2 cotton pretreated by RF-plasma and UV-C-light (185 nm) in vacuum and also under atmospheric pressure. Appl Catal B 2009; 91: 481–488.

Gururaj

Subasri

Raju

KRCS

. Appl Surf Sci 2011; 257: 4360–4364.

10.

Schulz

Kaiser

. Vacuum coating of plastic optics review. Prog Surf Sci 2006; 81: 387–401.

11.

Mahltig

Böttcher

. Modified silica sol coatings for water-repellent. J Sol-Gel Sci Technol 2003; 27: 43–52.

12.

Mahltig

Audenaert

Böttcher

. Hydrophobic silica sol coatings on textiles-the influence of solvent and sol concentration. J Sol-Gel Sci Technol 2005; 34: 103–109.

13.

Garg

Hurren

Kaynak

. Improvement of adhesion of conductive polypyrrole coating on wool and polyester fabrics using atmospheric plasma treatment. Synth Met 2007; 157: 41–47.

14.

Navaneetha Pandiyaraj

Selvarajan

. Non-thermal plasma treatment for hydrophilicity improvement of grey cotton fabrics. J Mater Process Technol 2008; 199: 130–139.

15.

Abidi N and Hequet EF. Cotton fabric surface modification using microwave plasma. In: Proceedings of the beltwide cotton conferences, National Cotton Council, New Orleans, LA, January 4–7, 2005.

16.

Fengyan

Yanjun

Xin

. Silica xerogel coating on the surface of natural and synthetic fabrics. Surf Coat Technol 2008; 202: 4721–4727.

17.

Brancatelli G, Colleoni C, Gigli A, et al. Hybrid organic-inorganic finishing for multifunctional textiles. In: International IFATCC congress, Stresa, Lago Maggiore, Italy, May 5–7, 2010, paper no. B1-12.

18.

Wang H, Fang J, Cheng T, et al. One-step coating of fluoro-containing silica nanoparticles for universal generation of surface superhidrophobicity. Supplementary Material (ESI) for chemical communications. Royal Society of Chemistry, 2007.

19.

Gehlen Marcelo

. Kinetics of autocatalytic acid hydrolysis of cellulose with crystalline and amorphous fractions. Cellulose 2010; 17: 417–426.

20.

Mitchell

Carr

Parfitt

. Surface chemical analysis of raw cotton fibres and associated materials. Cellulose 2005; 12: 629–639.

21.

Topalovic

Nierstrasz

Bautista

. XPS and contact angle study of cotton surface oxidation by catalytic bleaching. Colloids Surf A 2007; 296: 76–85.

22.

Inbakumar

Morent

De Geyter

. Chemical and physical analysis of cotton fabrics plasma-treated with a low pressure DC glow discharge. Cellulose 2010; 17: 417–426.

23.

O’Hare

Parbhoo

Leadley

. Development of a methodology for XPS curve fitting of the Si_2p core level of siloxane materials. Surf Interface Anal 2004; 36: 1427–1434.

24.

Alongi

Ciobanu

Tata

. Thermal stability and flame retardancy of polyester, cotton, and relative blend textile fabrics subjected to sol-gel treatment. J Appl Polym Sci 2011; 119: 1961–1969.

25.

Wen

Vasudevan

Wilkes

. Abrasion resistant inorganic/organic coating materials prepared by the sol-gel method. J Sol-Gel Sci Technol 1995; 5: 115–126.

Hydrophobic sol-gel finishing for textiles: Improvement by plasma pre-treatment

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