作者: |
Li Zhou, Zongsheng Liang, Rong Li, Dan Huang, Xuehong Ren
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作者单位: |
1Jiangnan University
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刊名: |
Journal of Thermal Analysis and Calorimetry, 2017, Vol.128 (2), pp.653-660 |
来源数据库: |
Springer Journal |
DOI: |
10.1007/s10973-016-5949-x |
关键词: |
Cotton; Phosphorus; Nitrogen; Flame retardant; Thermal degradation; |
英文摘要: |
A novel environmentally friendly flame-retardant compound, diethyl 3-(triethoxysilanepropyl) phosphoramidate (DTP) was synthesized via a simple one-step procedure with good yield and characterized by FT-IR and 1H-NMR, 31P-NMR and 29Si-NMR. The synthesized compound was coated onto cotton fabrics with different levels of add-ons (5–17 mass%) using the traditional pad-dry-cure method. SEM and XPS were conducted to characterize the surfaces of the coated cotton fabrics. The XPS results showed that DTP was attached to cotton through covalent bond. Cone calorimeter test showed that the cotton fabric treated with DTP became less flammable due to the lower HRR, THR and CO2/CO ratio. The modified cotton fabrics exhibited efficient flame retardancy, which... was evidenced by limiting oxygen index (LOI) and vertical flammability test. Cotton fabrics treated with DTP in 5–17 mass% add-ons had high LOI values of 23–32%. Thermogravimetric analysis results show that the usage of DTP promotes degradation of the cotton fabrics and catalyzes its char formation.
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原始语种摘要: |
A novel environmentally friendly flame-retardant compound, diethyl 3-(triethoxysilanepropyl) phosphoramidate (DTP) was synthesized via a simple one-step procedure with good yield and characterized by FT-IR and 1H-NMR, 31P-NMR and 29Si-NMR. The synthesized compound was coated onto cotton fabrics with different levels of add-ons (5–17 mass%) using the traditional pad-dry-cure method. SEM and XPS were conducted to characterize the surfaces of the coated cotton fabrics. The XPS results showed that DTP was attached to cotton through covalent bond. Cone calorimeter test showed that the cotton fabric treated with DTP became less flammable due to the lower HRR, THR and CO2/CO ratio. The modified cotton fabrics exhibited efficient flame retardancy, which... was evidenced by limiting oxygen index (LOI) and vertical flammability test. Cotton fabrics treated with DTP in 5–17 mass% add-ons had high LOI values of 23–32%. Thermogravimetric analysis results show that the usage of DTP promotes degradation of the cotton fabrics and catalyzes its char formation.
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