Preparation of a halogen-free P/N/Si flame retardant monomer with reactive siloxy groups and its application in cotton fabrics

doi:10.1016/j.cjche.2016.09.015

›› 2017, Vol. 25 ›› Issue (9): 1322-1328.DOI: 10.1016/j.cjche.2016.09.015

• Materials and Product Engineering • 上一篇下一篇

Preparation of a halogen-free P/N/Si flame retardant monomer with reactive siloxy groups and its application in cotton fabrics

Peihua Zhao, Kuankuan Xiong, Wentao Wang, Yaqing Liu

School of Materials Science and Engineering, North University of China, Taiyuan 030051, China

收稿日期:2016-05-15 修回日期:2016-09-17 出版日期:2017-09-28 发布日期:2017-10-11
通讯作者: Peihua Zhao,E-mail:zph2004@nuc.edu.cn
基金资助:
Supported by the National Natural Science Foundation of China (21301160).

Preparation of a halogen-free P/N/Si flame retardant monomer with reactive siloxy groups and its application in cotton fabrics

Peihua Zhao, Kuankuan Xiong, Wentao Wang, Yaqing Liu

School of Materials Science and Engineering, North University of China, Taiyuan 030051, China

Received:2016-05-15 Revised:2016-09-17 Online:2017-09-28 Published:2017-10-11
Supported by:
Supported by the National Natural Science Foundation of China (21301160).

摘要/Abstract

摘要： A novel halogen-free phosphorus-nitrogen-silicon flame retardant monomer with reactive siloxy groups, N-(diphenylphosphino)-1,1-diphenyl-N-(3-(triethoxysilyl)propyl) phosphinamine (DPTA) has been synthesized and was applied to the fire-resistant finishing of cotton fabrics. The molecular structure of DPTA has been well characterized by elemental analysis, FTIR, ¹H NMR, and ³¹P NMR spectroscopies. The chemically-grafted cotton fabrics, which were treated with 25 wt% DPTA, were obtained and confirmed by attenuated total reflectance Fourier infrared spectroscopy (ATR-FTIR). The flame retardancy and thermal property of the treated samples were investigated by limited oxygen index (LOI), vertical flammability test (VFT), thermogravimetric analysis (TGA) and microscale combustion calorimeter (MCC). It is noted that in vertical flammability test, the treated samples extinguished immediately upon removing the ignition source, whereas the untreated one was completely burned out. Furthermore, TGA and MCC tests revealed that the treated samples produced a high char formation and a low heated release during combustion. The surface morphology of the untreated and treated samples and the char residues after LOI tests were observed by scanning electron microscopy (SEM). Therefore, all the results showed that the treated cotton fabrics with 25 wt% DPTA apparently improved the fireresistant and thermal performances.

关键词: P/N/Si flame retardant, Synthesis, Cotton fabrics, Flame retardancy

Abstract: A novel halogen-free phosphorus-nitrogen-silicon flame retardant monomer with reactive siloxy groups, N-(diphenylphosphino)-1,1-diphenyl-N-(3-(triethoxysilyl)propyl) phosphinamine (DPTA) has been synthesized and was applied to the fire-resistant finishing of cotton fabrics. The molecular structure of DPTA has been well characterized by elemental analysis, FTIR, ¹H NMR, and ³¹P NMR spectroscopies. The chemically-grafted cotton fabrics, which were treated with 25 wt% DPTA, were obtained and confirmed by attenuated total reflectance Fourier infrared spectroscopy (ATR-FTIR). The flame retardancy and thermal property of the treated samples were investigated by limited oxygen index (LOI), vertical flammability test (VFT), thermogravimetric analysis (TGA) and microscale combustion calorimeter (MCC). It is noted that in vertical flammability test, the treated samples extinguished immediately upon removing the ignition source, whereas the untreated one was completely burned out. Furthermore, TGA and MCC tests revealed that the treated samples produced a high char formation and a low heated release during combustion. The surface morphology of the untreated and treated samples and the char residues after LOI tests were observed by scanning electron microscopy (SEM). Therefore, all the results showed that the treated cotton fabrics with 25 wt% DPTA apparently improved the fireresistant and thermal performances.

Key words: P/N/Si flame retardant, Synthesis, Cotton fabrics, Flame retardancy

Peihua Zhao, Kuankuan Xiong, Wentao Wang, Yaqing Liu. Preparation of a halogen-free P/N/Si flame retardant monomer with reactive siloxy groups and its application in cotton fabrics[J]. , 2017, 25(9): 1322-1328.

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Preparation of a halogen-free P/N/Si flame retardant monomer with reactive siloxy groups and its application in cotton fabrics

Preparation of a halogen-free P/N/Si flame retardant monomer with reactive siloxy groups and its application in cotton fabrics

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