Plasma modification of natural cellulosic fibres

Johansson, Kenth

doi:10.1533/9781845692575.2.247

Cited by 11 publications

(13 citation statements)

References 78 publications

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“…TiO 2 found by AAS indicate the real advantage of fibre surface activation prior to TiO 2 NPs deposition. It is well known that corona and RF plasma cause morphological and chemical changes of the Co fibre surface (Johansson 2007;Tourrette et al 2009). The interaction of plasma particles with cotton often results in homolytic bond cleavage and generation of extremely instable and reactive free radicals on the fibre surface (Johansson 2007).…”

Section: Resultsmentioning

confidence: 99%

“…Major work so far was focused on plasma modification of wool due to its complex structure and specific properties (Ueda and Tokino 1996;Wakida and Tokino 1996;Thomas 2007;Morent et al 2008). However, plasma modification of cellulosic and particularly cotton fibres also gained much scientific attention (Ueda and Tokino 1996;Johansson 2007). While the early research was oriented more towards improvement of the cotton fibres spinnability, and strength of the yarns and fabrics (Ueda and Tokino 1996), recent studies have been predominantly exploring the wetting, dyeing and printing properties of plasma treated cotton fibres (Sun and Stylos 2004;Yuen and Kan 2007;Karahan and Ö zdogan 2008;Navaneetha Pandiyaraj and Selvarajan 2008).…”

Section: Introductionmentioning

confidence: 99%

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Functionalization of cotton fabrics with corona/air RF plasma and colloidal TiO2 nanoparticles

et al. 2011

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This study discusses the possibility of using a corona discharge at atmospheric pressure and air RF plasma at low pressure for the cotton fibre activation prior to deposition of colloidal TiO 2 nanoparticles in order to enhance antibacterial, UV protective and self-cleaning properties. X-ray photoelectron spectroscopy (XPS) analysis confirmed the presence of TiO 2 nanoparticles on the surface of cotton fibres. XPS elemental mapping indicated that TiO 2 nanoparticles were more evenly distributed across the surface of untreated and corona pre-treated cotton fabrics in comparison with RF plasma pretreated fabric. Atomic absorption spectroscopy measurements revealed that the equivalent total content of TiO 2 in the cotton fabrics pre-treated by corona and RF plasma was 31% higher than in the fabric that did not undergo any treatment prior to loading of TiO 2 nanoparticles. In order to achieve maximum bacteria (Gram-negative bacteria Escherichia coli) reduction, untreated cotton fabric had to be loaded with colloidal TiO 2 nanoparticles twice, but only once following corona or RF plasma pre-treatment. Deposition of TiO 2 nanoparticles onto cotton fabrics provided maximum UV protective rating of 50?. Extraordinary photocatalytic activity of TiO 2 nanoparticles deposited onto cotton fabrics was proved by self-cleaning of blueberry juice stains and photodegradation of methylene blue in aqueous solution under UV illumination.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Functionalization of cotton fabrics with corona/air RF plasma and colloidal TiO2 nanoparticles

et al. 2011

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“…Cotton is the most important textile fibre in the world despite the inroads made into its market by synthetic fibres (Johansson 2007). Cotton is mainly composed of cellulose with some non-cellulosic components including proteins, waxes, pectic substances, organic acids, sugars,… (Karahan and Ö zdogan 2008).…”

Section: Introductionmentioning

confidence: 99%

“…Cellulose has traditionally been modified through reactions of the various hydroxyl groups, leading to esterification and etherification. In the last decades, non-thermal (or cold) plasmas are gaining popularity as a cellulose modification technique since this technique varies significantly from the traditional esterification and etherification routes (Johansson 2007). A non-thermal plasma contains activated species, such as electrons, ions, radicals, photons, … which are able to abstract hydrogen from either carbon or oxygen atoms present on the cotton surface.…”

Section: Introductionmentioning

confidence: 99%

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Chemical and physical analysis of cotton fabrics plasma-treated with a low pressure DC glow discharge

Inbakumar¹,

Morent

Geyter

et al. 2009

Cellulose

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This paper focuses on the modification of cotton fabrics using a low pressure DC glow discharge obtained in air. The influence of different operating parameters such as treatment time, discharge power and operating pressure on the chemical and physical properties of the cotton fabrics is studied in detail. Surface analysis and characterization of the plasma-treated cotton fabrics is performed using vertical wicking experiments, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and weight loss measurements. The cotton fabrics show a significant increase in wicking behaviour; an effect which increases with increasing treatment time, increasing discharge power and increasing pressure. Results also show that low pressure DC glow treatment leads to surface erosion of the cellulose fibres, accompanied by an incorporation of oxygen-containing groups (C-O, C=O, O-C-O and O-C=O) on the cotton fibres. The DC glow treatment has thus the potential to influence not only the chemical but also the physical properties of cotton fabrics and this without the use of water or chemicals.

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Dye–Fibre Interactions

2015

Physico‐chemical Aspects of Textile Coloration

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Plasma modification of natural cellulosic fibres

Cited by 11 publications

References 78 publications

Functionalization of cotton fabrics with corona/air RF plasma and colloidal TiO2 nanoparticles

Functionalization of cotton fabrics with corona/air RF plasma and colloidal TiO2 nanoparticles

Chemical and physical analysis of cotton fabrics plasma-treated with a low pressure DC glow discharge

Dye–Fibre Interactions

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