阻燃剂
烧焦
热重分析
可燃性
材料科学
热稳定性
氮气
磷酸
燃烧
傅里叶变换红外光谱
季戊四醇
高分子化学
核化学
化学工程
化学
复合材料
有机化学
工程类
冶金
作者
Yansong Liu,Jiayue Zhang,Yuanlin Ren,Yue‐Biao Zhang,Xiaohui Liu
标识
DOI:10.1177/00405175221074069
摘要
A novel phosphorus- and nitrogen-containing flame retardant (APNTHE) was synthesized through the reaction of N, N, N′, N′-tetrakis (2-hydroxypropyl) ethylenediamine, phosphoric acid and urea. Then, the APNTHE solution with a concentration of 120 g/L was used for the preparation of flame retardant cotton (FR-cotton). The elemental compositions, surface morphology, thermal stability and combustion behavior of the cotton before and after modification were investigated. Thermogravimetric (TG) analysis showed that the char residue of the treated fabric at 800°C was as high as 35.09% under a nitrogen atmosphere. Flammability tests after different LCs indicated that FR-cotton had durable flame retardancy. Compared to the blank sample, the peak of heat release rate and total heat release of the FR-cotton decreased by 91.89% and 90.53%, respectively. The char residual and TG-Fourier transform infrared spectroscopy analysis illustrated that APNTHE played a flame retardant role both in the gas phase and the condensed phase. All the results demonstrated that APNTHE can be regarded as a prospective flame retardant for cotton.
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