JOURNAL OF TEXTILE RESEARCH ›› 2018, Vol. 39 ›› Issue (06): 101-105.doi: 10.13475/j.fzxb.20170405505

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Synthesis and application of phosphorus and nitrogen-containing chlorine-resistant flame retardant finishing agent

  

  • Received:2017-04-28 Revised:2018-02-13 Online:2018-06-15 Published:2018-06-15

Abstract:

Dur to poor resistance to chlorine for most of phosphorus and nitrogen-containing flame retardant finishing agents, a phosphorus and nitrogen-containing chlorine-resistant flame retardant finishing agent was successfully synthesized by a two-step process using diethyl phosphate, N-hydroxymethyl acrylamide and epichlorohydrin as raw materials and sodium methoxide and sodium hydroxide as catalysts. The optimum synthetic conditions were determined by the orthogonal experiment, the flame retardant agent synthesized under the optimum conditions was characterized by infrared spectroscopy, and applied in the flame-retardant finishing of linen fabrics. The linen fabrics before and after finishing were characterized by infrared spectroscopy, the durability test and chlorine resistance test. The results indicate that the carbonized lingth of the linen fabrics finished with the synthesized chlorine-resistant flame retardant agent reachse 5.8 cm, the carbonized length after soaking with 20 g/L available chlorine solution for about 1 h still maintains at 9 cm. After 12 times of washing, the linen fabric finished by the flame retardant can still reach the standard GB B2, showing that a phosphorus and nitrogen-containingchlorine-resistant durable flame retardant finishing agent is successfully synthesized.

Key words: flame retardant, phosphorus and nitrogen, chlorine resistant, durability, linen fabric

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