Phosphorus/nitrogen/sulfur synergistic flame retardant and application thereof in flame-retardant finishing of protein fiber products

A technology of synergistic flame retardant and protein fiber, which is applied in the direction of flame retardant fiber, fiber treatment, animal fiber, etc., can solve the problems that do not have guiding significance, and achieve mild reaction conditions, good washing resistance, and flame retardant efficiency high effect

Active Publication Date: 2021-07-09
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are differences between cellulose fibers and protein fibers. Protein fibers mainly contain amino groups and carboxyl groups, and th

Method used

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  • Phosphorus/nitrogen/sulfur synergistic flame retardant and application thereof in flame-retardant finishing of protein fiber products
  • Phosphorus/nitrogen/sulfur synergistic flame retardant and application thereof in flame-retardant finishing of protein fiber products

Examples

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Effect test

Embodiment 1

[0024] A method for preparing a phosphorus / nitrogen / sulfur synergistic flame retardant and a method for flame-retardant finishing silk crepe chine fabric, the specific steps are as follows:

[0025] (1) diethyl phosphite is dissolved in ethanol to obtain diethyl phosphite alcohol solution; the mass volume ratio of diethyl phosphite to ethanol is 14g:14mL;

[0026] (2) Add diethyl phosphite alcohol solution to glutaraldehyde and ammonium sulfamate solution and heat to 70°C, keep it warm for 60 minutes to obtain a flame retardant processing fluid; diethyl phosphite, ammonium sulfamate and glutamic acid The molar ratio of aldehyde is 2:2:2; the concentration of diethyl phosphite in the flame retardant processing fluid is 1mol / L;

[0027] (3) Immerse the silk crepe de Chine fabric in the flame-retardant processing solution, heat it to 70°C, and keep it warm for 60 minutes to obtain the flame-retardant silk crepe de Chine; the mass ratio of the silk crepe de Chine fabric to the fla...

Embodiment 2

[0031] A method for preparing a phosphorus / nitrogen / sulfur synergistic flame retardant and a method for flame-retardant finishing silk power textiles, the specific steps are as follows:

[0032] (1) Dimethyl phosphite is dissolved in ethanol to obtain diethyl phosphite alcohol solution; the mass volume ratio of dimethyl phosphite to ethanol is 6.9g:8mL;

[0033] (2) Add the dimethyl phosphite alcohol solution into the glyoxal and sulfamic acid solution and heat it to 80°C, and keep it warm for 40 minutes to obtain a flame-retardant processing fluid; The molar ratio is 2:2:1.5; the concentration of dimethyl phosphite in the flame retardant processing fluid is 0.5mol / L;

[0034] (3) Immerse the silk crepe de chine fabric in the flame-retardant processing solution, heat it to 80°C, and keep it warm for 50 minutes to obtain the flame-retardant silk electric spinning; the mass ratio of the silk electric textile fabric to the flame-retardant processing liquid is 1:40.

Embodiment 3

[0036] A method for preparing a phosphorus / nitrogen / sulfur synergistic flame retardant and a method for flame-retardant finishing silk crepe satin fabric, the specific steps are as follows:

[0037] (1) diethyl phosphite is dissolved in ethanol to obtain diethyl phosphite alcohol solution; the mass volume ratio of diethyl phosphite to ethanol is 2.8g:5mL;

[0038] (2) Add diethyl phosphite alcohol solution to malondialdehyde and sodium sulfamate solution and heat it to 60°C, keep it warm for 80 minutes to obtain a flame retardant processing fluid; diethyl phosphite, sodium sulfamate and propanediol The molar ratio of aldehyde is 2:2:1; the concentration of diethyl phosphite in the flame retardant processing fluid is 0.2mol / L;

[0039] (3) Immerse the silk crepe satin fabric in the flame-retardant processing liquid, heat it to 75°C, and keep it warm for 70 minutes to obtain the flame-retardant silk crepe satin; the mass ratio of the silk crepe satin fabric to the flame-retardan...

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Abstract

The invention relates to a phosphorus/nitrogen/sulfur synergistic flame retardant and application thereof in flame-retardant finishing of protein fiber products, and belongs to the technical field of flame-retardant functional finishing of textiles. The phosphorus/nitrogen/sulfur synergistic flame retardant is prepared by using phosphite ester, dialdehyde and sulfamate through a Kabachnik-Fields reaction. The flame retardant contains an active aldehyde group which is subjected to a Schiff base cross-linking reaction with an amino group on a protein fiber product, and the flame retardant is fixed on protein fiber through a covalent bond. The prepared phosphorus/nitrogen/sulfur synergistic flame retardant is high in flame retardant efficiency, and the protein fiber product finished by the flame retardant is excellent in flame retardant effect and good in washing resistance; the preparation process is simple, conditions are mild, formaldehyde release does not exist, and the flame retardant has wide application prospects and important practical application value.

Description

technical field [0001] The invention relates to the technical field of flame-retardant finishing of textiles, in particular to a phosphorus / nitrogen / sulfur synergistic flame retardant and its application in flame-retardant finishing of protein fiber products. Background technique [0002] With the continuous development of society, textiles have become an indispensable item in people's daily life, but most of them are flammable. According to statistics, on a global scale, there are 6 to 7 million fires every year, about half of which are caused by burning textiles, and the death toll reaches 65,000 to 75,000. In order to avoid fire accidents caused by the burning of textiles and reduce unnecessary losses, countries all over the world pay more and more attention to the improvement of the flame retardant performance of textiles, and have successively put forward relevant requirements for the flame retardant performance of textile products. Protein fibers are important natural...

Claims

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Application Information

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IPC IPC(8): D06M13/453D06M101/10D06M101/12
CPCD06M13/453D06M2200/30D06M2101/12D06M2101/10
Inventor 程献伟金文杰关晋平陈国强
Owner SUZHOU UNIV
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