磷氮阻燃剂对涤纶织物的阻燃整理

doi:10.13475/j.fzxb.20181004906

摘要/Abstract

摘要：

为实现涤纶织物的低毒阻燃整理,以氯磷酸二乙酯、甲基丙烯酰胺为反应物,合成磷氮阻燃剂二乙基-甲基丙烯酰胺磷酸酯(DMPP),通过浸渍方法整理到涤纶织物上,研究了引发剂过硫酸钾质量分数和浸渍时间对整理织物各项性能的影响,得到最佳工艺条件:浸渍时间为3 h,引发剂质量分数为3%。结果表明:阻燃剂成功整理到涤纶织物表面;燃烧后整理织物炭长由大于30 cm下降到7.7 cm,极限氧指数提高到28.7%;对整理织物进行10次水洗后其极限氧指数仍达27.4%;整理织物的强力损失控制在了5%以内,满足服用要求。

关键词: 磷氮化合物, 阻燃整理, 涤纶织物, 阻燃剂, 力学性能

Abstract:

In order to synchronously realize low toxicity and flame retardant properties of polyester fabrics, an environmentally friendly flame retardant, diethyl methacryloylphosphoramidate (DMPP) was synthesized through the reaction of diethyl chlorophosphate and methacrylamide. The synthesized flame retardant was grafted on PET fabrics by impregnation method. The influence of the quantity of the initiator potassium persulfate and impregnating time on the properties of the grafted fabrics were studied. The optimum finishing process was found to be as follows: the immersing time was 3 h, the initiator concentration was 3%. The tests showed that the flame retardant was grafted onto the surface of PET fabrics. After combustion, the char length of the grafted fabrics decreased from 30 cm to 7.7 cm, the limiting oxygen index increased to 28.7% and was still 27.4% after washing 10 times. The strength loss of the grafted fabrics was limited to 5% and met the apparel fabric standards.

Key words: phosphorus-nitrogen compound, flame-retardant finishing, polyester fabric, flame retardant, mechanical property

中图分类号:

TS156

丁放, 任学宏. 磷氮阻燃剂对涤纶织物的阻燃整理[J]. 纺织学报, 2020, 41(03): 100-105.

DING Fang, REN Xuehong. Flame-retardant finishing of polyester fabrics by grafting phosphorus-nitrogen compounds[J]. Journal of Textile Research, 2020, 41(03): 100-105.

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样品	续燃时间/s	阴燃时间/s	炭长/cm	质量增加率/%	LOI值/%	是否熔滴
原涤纶织物	1.2	0.6	>30	—	19.9	是
15%DMPP整理涤纶织物	0.8	0.0	15.4	5.99	22.5	是
20%DMPP整理涤纶织物	0.3	0.0	15.2	7.55	23.5	是
25%DMPP整理涤纶织物	0.0	0.0	14.8	9.82	25.1	是
30%DMPP整理涤纶织物	0.0	0.0	11.3	11.74	27.5	否
35%DMPP整理涤纶织物	0.0	0.0	7.7	12.36	28.7	否

样品	断裂强力/N
样品	经向	纬向
原涤纶织物	957.6±12.3	934.8±15.0
35%DMPP整理涤纶织物	724.0±17.6	703.9±14.4