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A durable flame retardant for cellulosic fabrics

机译:纤维素织物的耐用阻燃剂

摘要

A novel halogen- and formaldehyde-free flame retardant named Neo-FR was synthesized and applied to cellulosic fabrics. The chemical structure of the flame retardant was characterized by Fourier-transform infrared spectroscopy (FTIR). The flame retardant performance was evaluated by Limiting oxygen index (LOI) and vertical flammability tests. The results indicated that the flame retardant had excellent flame retardancy and durability for cellulosic fabrics. The surface morphology of treated fibre and fibre char residue were observed through scanning electron microscope (SEM). The SEM graphs demonstrated that the Neo-FR system played intumescent flame retarding mechanism on cotton fibre. The thermal property of the flame retardant treated cotton fabric was investigated through thermal gravimetric analysis (TGA). The results indicated that char residue of the treated fabrics was about 36.5%, which was much higher than that of untreated fabric. The mechanical properties such as tensile strength and elongation of the cotton samples treated with Neo-FR system were much less affected than those treated by a commercial durable flame retardant agent (Pyrovatex CP New). The laundering test results show that the Neo-FR system is a durable flame retardant for cellulosic fabrics.
机译:合成了一种新型的不含卤素和甲醛的新型阻燃剂Neo-FR,并将其应用于纤维素织物。阻燃剂的化学结构通过傅里叶变换红外光谱(FTIR)表征。通过极限氧指数(LOI)和垂直可燃性测试评估了阻燃性能。结果表明,该阻燃剂对纤维素织物具有优异的阻燃性和耐久性。通过扫描电子显微镜(SEM)观察处理后的纤维的表面形态和纤维炭残留物。 SEM图表明,Neo-FR系统在棉纤维上起膨胀型阻燃机理。通过热重分析(TGA)研究了阻燃剂处理的棉织物的热性能。结果表明,经处理的织物的炭残留量约为36.5%,这比未经处理的织物的高得多。与用耐久阻燃剂(Pyrovatex CP New)处理的棉相比,用Neo-FR系统处理的棉样品的机械性能(如拉伸强度和伸长率)受到的影响要小得多。洗涤测试结果表明,Neo-FR系统是纤维素织物的耐用阻燃剂。

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