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Soluble polyelectrolyte compound and method for flame-retardant finishing of protein fiber

A technology of protein fiber and polyelectrolyte, which is applied in fiber treatment, animal fiber, flame-retardant fiber, etc., can solve the problems of restricting industrial application and complicated process, and achieve good washing resistance, simple process, low phosphorus and nitrogen content high effect

Active Publication Date: 2019-01-29
NANTONG TEXTILE & SILK IND TECH RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the layer-by-layer assembly technology involves multiple dipping of polyanion and polycation solutions, and the process is complicated, which greatly limits its industrial application.

Method used

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  • Soluble polyelectrolyte compound and method for flame-retardant finishing of protein fiber
  • Soluble polyelectrolyte compound and method for flame-retardant finishing of protein fiber
  • Soluble polyelectrolyte compound and method for flame-retardant finishing of protein fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: Silk Fabric - Citric Acid - One Impregnation

[0029] (1) Preparation of soluble polyelectrolyte complex: first dissolving chitosan (2%) in citric acid (10%) solution, and using acetic acid to adjust the pH value of the solution to 2 to obtain a chitosan solution. Then an equal volume of phytic acid (24%) solution is slowly added dropwise to the chitosan solution, and stirred evenly to obtain a uniform and transparent soluble phytic acid / chitosan polyelectrolyte complex system, and the concentration of phytic acid in the solution is now 12%, the concentration of chitosan is 1%, the concentration of citric acid is 5%, and the pH value of the solution is 2.

[0030] (2) Preparation of flame-retardant silk fabric: immerse the silk fabric in the polyelectrolyte complex solution obtained in step (1) for 10 minutes, then roll off excess water, the excess rate is 100%, and dry the silk fabric at 70°C . Then the silk fabric was treated in pH6 citric acid / sodium cit...

Embodiment 2

[0031] Example 2: Silk fabric - citric acid - five dips

[0032] (1) Preparation of soluble polyelectrolyte complex: first dissolving chitosan (4%) in citric acid (12%) solution, and using acetic acid to adjust the pH value of the solution to 1 to obtain a chitosan solution. Then an equal volume of phytic acid (20%) solution is slowly added dropwise to the chitosan solution, and stirred evenly to obtain a uniform and transparent soluble phytic acid / chitosan polyelectrolyte complex system, and now the concentration of phytic acid in the solution is 10%, the concentration of chitosan is 2%, the concentration of citric acid is 6%, and the pH value of the solution is 1.

[0033] (2) Preparation of flame-retardant silk fabric: immerse the silk fabric in the polyelectrolyte complex solution obtained in step (1) for 10 minutes, then roll off excess water, the excess rate is 100%, and dry the silk fabric at 70°C . Then the silk fabric was treated in pH5 citric acid / sodium citrate bu...

Embodiment 3

[0034] Embodiment 3: silk fabric-hydrochloric acid-five dippings

[0035] (1) Preparation of soluble polyelectrolyte complex: first dissolving chitosan (4%) in hydrochloric acid solution with a pH value of 1 to prepare a chitosan solution. Then an equal volume of phytic acid (20%) solution is slowly added dropwise to the chitosan solution, and stirred evenly to obtain a uniform and transparent soluble phytic acid / chitosan polyelectrolyte complex system, and now the concentration of phytic acid in the solution is 10%, the concentration of chitosan is 2%, and the pH value of the solution is 1.

[0036](2) Preparation of flame-retardant silk fabric: immerse the silk fabric in the polyelectrolyte complex solution obtained in step (1) for 10 minutes, then roll off excess water, the excess rate is 100%, and dry the silk fabric at 70°C . Then the silk fabric was treated in pH5 citric acid / sodium citrate buffer solution for 5 minutes, then washed with water and dried at 70°C. The a...

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Abstract

The invention discloses a soluble polyelectrolyte compound and a method for flame-retardant finishing of protein fiber, and belongs to the technical field of textile function finishing. A soluble polyelectrolyte compound flame-retardant system is prepared from phytic acid and chitosan under strong acidic conditions, and after being treated by a buffer solution, the phytic acid and the chitosan canbe combined with the surface of the protein fiber by ion bonds, and are attached to the surface of the protein fiber. The phytic acid and chitosan flame retardant components in the preparation methodare natural products, the raw materials are sufficient in source, and the prepared polyelectrolyte compound belongs to an environment-friendly flame-retardant system. The method is simple in process,short in flow and low in economic cost, and the prepared flame-retardant protein fiber is excellent in flame retardancy, is good in washing resistance and has a wide application prospect.

Description

technical field [0001] The invention relates to a soluble polyelectrolyte compound and a method for flame-retardant finishing of protein fibers, belonging to the technical field of textile functional finishing. Background technique [0002] Fires caused by burning textiles account for a large proportion of residential fire accidents, which not only pose a great threat to the safety of human life and property, but also cause serious pollution to the environment. Therefore, flame retardant finishing of textiles is still an important and urgent task. Relevant researchers have developed many flame retardants to improve the flame retardancy of textiles, thereby reducing the fire hazard of textiles. Halogen flame retardants have the characteristics of low concentration and high efficiency, high production efficiency, and are widely used in flame-retardant finishing of textiles. However, halogenated flame retardants have persistent harm to the environment and ecosystem, so their ...

Claims

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Application Information

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IPC IPC(8): D06M15/03D06M13/292D06M13/207D06M101/12D06M101/10
CPCD06M13/207D06M13/292D06M15/03D06M2101/10D06M2101/12D06M2200/30
Inventor 程献伟杨旭红唐人成关晋平
Owner NANTONG TEXTILE & SILK IND TECH RES INST
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