Preparation and Thermal Behavior of Novel Sulfur-Nitrogen Flame Retardant Containing Triazine Ring for Cotton Fabrics
作者:Zhi-Yi Zhang、Gui-Zhe Zhao、Ya-Qing Liu
DOI:10.14233/ajchem.2014.16758
日期:——
A novel sulfur-nitrogen flame retardant containing triazine ring (SN) has been synthesized and structurally characterized by elemental analysis, FT-IR and 1H NMR spectroscopies. Meanwhile, the effects of reaction solvent, acid-binding agent, reaction temperature and molar ratio of starting materials on the yield of SN were investigated. Experiments showed that when the molar ratio of intermediate M to diethanol amine is 1 to 1 in the presence of sodium carbonate as acid-binding agent in water at 40 °C, the yield of the obtained SN reaches 85 %. In addition, to evaluate the potential flame-retardant ability of the target flame retardant (SN), the thermal behaviors of SN, pure cotton, and cotton treated with SN were studied by thermogravimetry analysis. This result demonstrated that SN was a good charring agent and obviously improved the char-forming ability and the thermal stability of cotton fabrics.
合成了一种新型含三嗪环的硫氮阻燃剂(SN),并通过元素分析、傅立叶变换红外光谱和 1H NMR 光谱对其结构进行了表征。同时,研究了反应溶剂、酸结合剂、反应温度和起始原料摩尔比对 SN 收率的影响。实验结果表明,当中间体 M 与二乙醇胺的摩尔比为 1:1 时,以碳酸钠作为酸结合剂,在 40 ℃ 的水中进行反应,得到的 SN 收率达到 85%。此外,为了评估目标阻燃剂(SN)的潜在阻燃能力,还通过热重分析法研究了 SN、纯棉和用 SN 处理过的棉花的热性能。结果表明,SN 是一种良好的成炭剂,能明显提高棉织物的成炭能力和热稳定性。