Preparation and flame retardancy of 3-(hydroxyphenylphosphinyl)-propanoic acid esters of cellulose and their fibers

被引：16
|
作者：
Zheng, Yunbo [1 ]
Song, Jun [1 ,2 ]
Cheng, Bowen [1 ,2 ]
Fang, Xiaolin [1 ]
Yuan, Ya [1 ]
机构：
[1] Tianjin Polytech Univ, Dept Mat Sci & Engn, Key Lab Tianjin City Modificat & Funct Fiber, Tianjin 300387, Peoples R China
[2] Tianjin Polytech Univ, Dept Mat Sci & Engn, State Key Lab Hollow Fiber Membrane Mat & Proc, Tianjin 300387, Peoples R China
来源：
CELLULOSE | 2015年 / 22卷 / 01期
关键词：
Cellulose; Homogeneous modification; Fire-retardant fiber; COTTON FABRICS; 1-ALLYL-3-METHYLIMIDAZOLIUM CHLORIDE; THERMAL-DEGRADATION; IONIC LIQUID; BEHAVIOR; POLYMERIZATION; DERIVATIVES; PYROLYSIS; CHEMISTRY; TEXTILES;
D O I：
10.1007/s10570-014-0486-x
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
New 3-(hydroxyphenylphosphinyl)-propanoic acid (3-HPP) esters of cellulose were synthesized in N, N-dimethylacetamide/LiCl homogeneously by the method of in situ activation with p-toluenesulfonyl chloride. Chemical structure and thermal properties of the cellulose esters were investigated by FTIR, C-13-NMR, TGA, RT-IR and Py-GC/MS, and their flame retardancy was studied by limiting oxygen index (LOI) test and vertical flammability test. It was found that the degree of substitution (DS) of cellulose esters, in the range from 0.62 to 1.42, had an obvious effect on solubility of cellulose esters. According to the FT-IR and Py-GC/MS results, flame retardant 3-HPP reacting with cellulose could accelerate dehydration action and decrease flammable released products. Besides, ESEM observation also confirmed that flame retardant cellulose (FRC) fibers with 3 wt% cellulose acetate prepared by dry-wet spinning technique possessed good flame resistance.
引用
收藏
页码：229 / 244
页数：16
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