Nano zinc oxide for UV protection of textiles
by Lu Sun, John A. Rippon, Peter G. Cookson, Xungai Wang, Ken King, Olga Koulaeva, Reno Beltrame
International Journal of Technology Transfer and Commercialisation (IJTTC), Vol. 7, No. 2/3, 2008

Abstract: This paper describes the effect on the fading of dyed polyester fabrics in artificial sunlight, when the Ultra Violet (UV) component of the radiation was blocked by coating the fabric with zinc oxide nanoparticles, dispersed in an acrylic polymer. Zinc oxide is photoactive and generates superoxide and hydroxyl radicals (Reactive Oxygen Species; ROS) when irradiated with UV in the presence of oxygen and water. The results for the four dyes studied show that different dye chromophores interact differently with ROS. Selection of dyes with anti oxidant properties or addition of other anti oxidants may reduce the adverse effects of ROS.

Online publication date: Thu, 18-Sep-2008

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