An eco-friendly NP flame retardant for durable flame-retardant treatment of cotton fabric.
An eco-friendly NP flame retardant for durable flame-retardant treatment of cotton fabric.
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DOI：
10.1016/j.ijbiomac.2021.07.130
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发表时间：
2021-07
影响因子：
8.2
通讯作者：
Y. Liao;Yu Chen;Caiyan Wan;Guangxian Zhang;Fengxiu Zhang
中科院分区：
文献类型：
--
作者：
Y. Liao;Yu Chen;Caiyan Wan;Guangxian Zhang;Fengxiu Zhang
合成了一种无卤、无甲醛、高效、耐久的N-单键P阻燃剂--葡甲胺磷酸酯酸铵盐（ASMPEA）。傅里叶变换红外光谱（FTIR）和核磁共振波谱（1H NMR、13 C NMR和31 P NMR）结果表明，ASMPEA是通过P-O-C共价键接枝到棉纤维上的。30wt%ASMPEA处理棉织物的LOI值为40.2%，50次洗涤后，LOI值降至29.4%，表明经ASMPEA处理的棉纤维具有优异的耐久阻燃性能。热重、锥形量热和垂直燃烧性能测试结果表明，ASMPEA处理棉在燃烧过程中分解为磷酸或多聚磷酸，促进了处理棉的热降解和炭化，阻碍了火焰的蔓延。扫描电子显微镜（SEM）、X射线衍射（XRD）和能谱（EDS）分析表明，ASMPEA对棉纤维的渗透性没有明显影响，但对棉织物的力学性能影响不大。这些结果证实，当用于涂覆棉织物时，ASMPEA实现了优异的持久阻燃性。
A halogen-free, formaldehyde-free, efficient, durable, Nsingle bondP flame retardant, the ammonium salt of meglumine phosphoric ester acid (ASMPEA), was prepared. The Fourier-transform infrared spectroscopy (FTIR) and nuclear magnetic resonance spectroscopy (1H NMR,13C NMR, and31P NMR) results indicated that ASMPEA was grafted onto cotton fibers by P-O-C covalent bonds. The LOI value of 30 wt% ASMPEA-treated cotton fabric was 40.2%, and after 50 laundering cycles (LCs), the LOI value decreased to 29.4%, indicating that the cotton fibers treated with ASMPEA were endowed with excellent durable flame retardancy. Thermogravimetry (TG), cone calorimetry, and vertical flammability test results showed that ASMPEA-treated cotton decomposed into phosphoric acid or polyphosphoric acid during combustion, which promoted the thermal degradation and charring of treated cotton fabrics and hindered the spread of flames. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and energy-dispersive spectrometry (EDS) verified that ASMPEA infiltrated the cotton fiber without obviously affecting its surface morphology or crystal structure; however, the mechanical properties of the treated cotton fabric decreased slightly. These results confirm that ASMPEA achieved excellent durable flame retardancy when used to coat cotton fabric.