Degradation Kinetics of Organophosphorus Flame Retardant from Cotton Fabric

Abstract:

The organophosphorus compound N-methylol dimethyl phosphonopropionamide (MDPA) is extensively used for durable flame retardant (FR) treatments for cotton fabrics. For optimum finishing treatment, MDPA is used with the Trimethylol melamine (TMM) or dimethylol dihydroxyethylene urea (DMDHEU) for cotton fabric treatments. The amino resins TMM known to pose severe toxic problems such as; breathing problems, headache and most importantly, cancer. In the production, consumption and eventually in the disposal phase of FR with TMM treated cotton fabrics, the release of TMM and toxic emissions cannot be ignored. In this study, mineralization and degradation of the organophosphorus FR compound from the cotton fabric using Advanced Oxidation Process (AOP) was successfully employed. The kinetics of degradation of FR substance from the cotton fabric was studied. The rate of degradation of the FR substance from the cotton fabrics was observed with chemical oxygen demand (COD). The kinetic rate constant equations and characterization of the mineralization and degradation of the FR substance by the AOP reaction was developed with the COD values. The organophosphorus FR on the fabric found to follow the first-order of kinetics of degradation from the cotton fabric.

• Periodical: Applied Mechanics and Materials (Volume 864)
• Pages: 54-58
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.864.54
• Online since: April 2017
• Authors: Sohail Yasin, Nemeshwaree Behary, Anne Perwuelz, Jin Ping Guan*, Guo Qiang Chen
• Keywords: Cotton, Degradation, Flame Retardant, Kinetics, Organophosphorus

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