Durable Antibacterial and UV Protective Properties of Cotton Fabric Coated with Carboxymethyl Chitosan and Ag/TiO2 Composite Nanoparticles

Low-pressure oxygen plasma created by an electrodeless radiofrequency (RF) discharge was applied to modify the properties of cellulosic fibrous polymer (cotton) in order to improve adsorption properties towards zinc oxide (ZnO) nanoparticles and to achieve excellent ultraviolet (UV) protective properties of cotton fabric. The chemical and physical surface modifications of plasma-treated cotton fabric were examined by X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). The mechanical properties of plasma-treated samples were evaluated, measuring strength and elongation of the fabrics. The quantity of zinc on the ZnO-functionalized cotton samples was determined using inductively coupled plasma mass spectrometry (ICP-MS) and the effectiveness of plasma treatment for UV protective properties of cotton fabrics was evaluated using UV-VIS spectrometry, measuring the UV protection factor (UPF). The results indicated that longer plasma treatment times cause higher concentration of oxygen functional groups on the surface of fibres and higher surface roughness of fibres. These two conditions are crucial in increasing the content of ZnO nanoparticles on the fibres, providing excellent UV protective properties of treated cotton, with UPF factor up to 65.93.

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Textiles. Solar UV protective properties

10.3403/bsen13758 ◽

2015 ◽

Keyword(s):

Protective Properties ◽

Solar Uv ◽

Uv Protective Properties

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Use of Extended Cover Factor Theory in UV Protection of Woven Fabric

Polymers ◽

10.3390/polym13081188 ◽

2021 ◽

Vol 13 (8) ◽

pp. 1188

Author(s):

Klara Kostajnšek ◽

Krste Dimitrovski

Keyword(s):

Woven Fabrics ◽

Uv Protection ◽

Woven Fabric ◽

Simplified Model ◽

Light Penetration ◽

Protective Properties ◽

Cover Factor ◽

Coefficient Of Reflection ◽

Uv Protective Properties

The paper presents an extension of existed cover factor theory more suitable for the evaluation of light penetration through a net woven fabrics structure. It also introduces a new simplified model of predicting the ultraviolet (UV) protective properties of woven fabrics assuming that the coefficient of reflection (KR), transmission (KT), and absorption (KA) of constitutive yarns are known. Since usually they are not, the procedure of preparation of simulation of proper woven fabric samples without interlacing and with known constructional parameters is also presented. The procedure finishes with a fast and cheap detection of missed coefficient for any type of yarns. There are differences between theoretical and measured results, which are not particularly significant in regard to the purpose and demands of investigation.

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Characterization of mechanical and barrier properties of bacterial cellulose, glycerol and polyvinyl alcohol (PVOH) composite films with eco-friendly UV-protective properties

Food Hydrocolloids ◽

10.1016/j.foodhyd.2019.105323 ◽

2020 ◽

Vol 99 ◽

pp. 105323 ◽

Cited By ~ 11

Author(s):

Patricia Cazón ◽

Gonzalo Velazquez ◽

Manuel Vázquez

Keyword(s):

Polyvinyl Alcohol ◽

Bacterial Cellulose ◽

Composite Films ◽

Barrier Properties ◽

Protective Properties ◽

Uv Protective Properties

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Antibacterial and UV protective properties of polyamide fabric impregnated with TiO2/Ag nanoparticles

Journal of the Serbian Chemical Society ◽

10.2298/jsc141104125m ◽

2015 ◽

Vol 80 (5) ◽

pp. 705-715 ◽

Cited By ~ 4

Author(s):

Milica Milosevic ◽

Ana Krkobabic ◽

Marija Radoicic ◽

Zoran Saponjic ◽

Vesna Lazic ◽

...

Keyword(s):

Escherichia Coli ◽

Staphylococcus Aureus ◽

Antibacterial Activity ◽

Ag Nanoparticles ◽

Uv Protection ◽

Bacterial Reduction ◽

Protective Properties ◽

Polyamide Fabric ◽

Uv Protective Properties

The possibility of in situ photoreduction of Ag+ ions using colloidal TiO2 nanoparticles deposited on the surface of polyamide fabric in the presence of amino acid alanine and methyl alcohol is discussed. The presence of TiO2/Ag nanoparticles on the polyamide fabric was confirmed by FESEM and ICP analyses. Antibacterial activity of the fabric was tested against Gram-negative bacterium Escherichia coli and Gram-positive bacterium Staphylococcus aureus. Fabricated TiO2/Ag nanoparticles on the surface of polyamide fabric provided maximum bacterial reduction and thus, excellent antibacterial activity. In spite of silver leaching from the fabric during washing, impregnated polyamide fabric preserved maximum reduction of Escherichia coli colonies. Antibacterial activity against Staphylococcus aureus slightly decreased after ten washing cycles, but still antibacterial activity can be considered as satisfactory. In addition, the presence of TiO2/Ag nanoparticles ensured better UV protection efficiency which belongs to very good UV protection category.

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