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首页> 外文期刊>Journal of Applied Polymer Science >Flame retardant modification of acrylic fiber with hydrazine hydrate and sodium ions
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Flame retardant modification of acrylic fiber with hydrazine hydrate and sodium ions

机译：水合肼和钠离子对腈纶纤维的阻燃改性

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The sodium ions were introduced into the acrylic fibers by post-treating the fibers with hydrazine hydrate and aqueous sodium hydroxide to improve the flame resistance of the fibers. The molecular structure of the modified acrylic fibers was characterized by FTIR spectra. The flame resistance of the acrylic fibers was significantly increased after post-treatment and was relied mostly on the content of sodium ions. The flame-retardant mechanism of the modified fiber was studied in details. The micro calorimeter tests showed that the total heat release and the peak heat release rate were largely reduced after post-treatment. Photographs of the char residues and the results of TGA and TG-IR technique revealed that the flame retardance of the modified acrylic fiber was provided through the combination effect of the gas phase and condensed phase. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41996.
机译：通过用水合肼和氢氧化钠水溶液对纤维进行后处理，将钠离子引入丙烯酸纤维中，以提高纤维的阻燃性。通过FTIR光谱表征了改性丙烯酸纤维的分子结构。后处理后，丙烯酸纤维的阻燃性显着提高，并且主要依赖于钠离子的含量。详细研究了改性纤维的阻燃机理。微量热量计测试表明，后处理后总热量释放和峰值热量释放速率大大降低。焦炭残渣的照片以及TGA和TG-IR技术的结果表明，改性丙烯酸纤维的阻燃性是通过气相和缩合相的结合作用来提供的。 （c）2015 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，41996。

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