Permanent flame retardant finishing of textile materials by a photochemical immobilization of vinyl phosphonic acid |
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Authors: | Klaus Opwis Andreas WegoThomas Bahners Eckhard Schollmeyer |
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Affiliation: | Deutsches Textilforschungszentrum Nord-West e.V., Adlerstr. 1, D-47798 Krefeld, Germany |
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Abstract: | A new photochemical method for a permanent flame retardant finishing of textiles made of cotton (CO), polyamide (PA) and polyester (PET) is described. Using a mercury vapour UV lamp vinyl phosphonic acid (VPA) can be fixed durable to different fabrics made of CO, PA and PET in the presence of a cross-linking agent and a photo-initiator. After a home laundering cycle up to 50 wt% of the reaction mixture is retained on the fabrics and the absolute phosphorus content was found to be more than 2.0% in all investigated cases. The photochemically modified textiles showed high levels of flame retardant performance and passed a vertical flammability test for protective clothing. |
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Keywords: | Cotton Polyamide Polyester Photochemical flame retardant finishing Vinyl phosphonic acid |
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