Textile solar light collectors based on models for polar bear hair |
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Authors: | Thomas Bahners Uwe Schlosser Eckhard Schollmeyer |
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Affiliation: | a Deutsches Textilforschungszentrum Nord-West e.V., Adlerstr. 1, D-47798 Krefeld, Germany b Institut für Textilchemie und Chemiefasern, Körschtalstr. 26, D-73770 Denkendorf, Germany |
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Abstract: | Concepts of technical fibers following models for the polar bear hair to be used for textile solar collectors are discussed. The approach to coat fibers with a thin layer into which fluorescent dyestuff was dispersed was studied experimentally. Modified fibers made of different polymers were characterized with respect to optical properties relevant for the bionic model. In the case of poly(methylmethacrylate) fibers, the envisaged effect could be achieved to high efficiency. The optical performance could be enhanced by ultrasonic dispersion of the dyestuff in the coating matrix. The effect is less significant in semi-crystalline fibers such as poly(ethylene terephthalate), which is attributed to diffuse scattering. |
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Keywords: | Textile fibers Fexible solar light collectors Polar bear hair |
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