Quaternization hadegen amide modified chitosan and method for preparing antibacterial cotton fabric

A chitosan, halogenated amine technology, applied in the directions of plant fibers, textiles and papermaking, fiber processing, etc., can solve the problems of limited application, chemical cross-linking and wearability, etc., and achieves simple synthesis method, activation and regeneration. Simple and convenient, broad-spectrum antibacterial effect

Active Publication Date: 2015-05-20
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, chemical crosslinking has a great influence on the strength and other wearable properties of fabrics, and the antibacterial effect of chitosan as an antibacterial agent can only be manifested under acidic conditions, which limits its application.

Method used

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  • Quaternization hadegen amide modified chitosan and method for preparing antibacterial cotton fabric
  • Quaternization hadegen amide modified chitosan and method for preparing antibacterial cotton fabric
  • Quaternization hadegen amide modified chitosan and method for preparing antibacterial cotton fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Weigh 3.22g (0.02mol) of chitosan in a single-necked flask, add 3.16g (0.02mol) of hydroxymethylhydantoin, then add 50mL of deionized water, and place the single-necked flask in an oil bath environment of 80°C for reaction. And keep stirring, after the deionized water in the flask is condensed and refluxed, react for 30h. After the reaction, cool down, filter the contents of the flask under reduced pressure, wash the obtained solid product with distilled water several times, put it in a vacuum oven at 45°C and dry it for 1 day, and weigh the finally obtained solid powder.

[0041] Then mix the dried solid with 15.2g (0.1mol) 2,3-epoxypropyltrimethylammonium chloride in 50mL isopropanol solution, react at 60°C for 32h, cool to room temperature and filter under reduced pressure after the reaction , the obtained solid was dried at 45° C. for 1 d, and stored for future use.

[0042] The synthetic method of poly-2-acrylamido-2-methylpropanesulfonic acid sodium is: take 4.14...

Embodiment 2

[0044] Weigh 3.22g (0.02mol) of chitosan in a single-necked flask, add 3.16g (0.02mol) of hydroxymethylhydantoin, then add 50mL of deionized water, and place the single-necked flask at 100°C in an oil bath environment for reaction. And keep stirring, after the deionized water in the flask is condensed and refluxed, react for 24h. After the reaction, cool down, filter the contents of the flask under reduced pressure, wash the obtained solid product with distilled water several times, put it in a vacuum oven at 45°C and dry it for 1 day, and weigh the finally obtained solid powder.

[0045] Then mix the dried solid with 9.12g (0.06mol) 2,3-epoxypropyltrimethylammonium chloride in 50mL isopropanol solution, react at 80°C for 24h, cool to room temperature and filter under reduced pressure after the reaction , the obtained solid was dried at 45° C. for 1 d, and stored for future use.

[0046]The synthetic method of poly-2-acrylamido-2-methylpropanesulfonic acid sodium is: take 4.1...

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PUM

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Abstract

The invention discloses a method for preparing quaternization hadegen amide modified chitosan. The method comprises the following specific steps: (1) hydroxymethyl hydantoin and chitosan in water, reacting at the temperature of 80-100 DEG C for 24-30 hours, cooling to room temperature after the reaction is ended, performing vacuum filtration, and drying the obtained solids; and (2) mixing the dried solids and 2,3-epoxypropyltrimethylammonium chloride in an isopropanol solution, reacting at the temperature of 60-80 DEG C for 24-32 hours, cooling to room temperature after the reaction is ended, performing vacuum filtration, and drying the obtained solids, thereby obtaining the quaternization hadegen amide modified chitosan. The method disclosed by the invention is easy to operate and low in cost, and the prepared antibacterial cotton fabric has excellent and high-efficiency antibacterial performance and also has good service performance.

Description

technical field [0001] The invention relates to the technical field of textile production, in particular to the use of layer-by-layer self-assembly technology to prepare high-efficiency antibacterial cotton fabrics by using quaternized ammonium halide-amine modified chitosan and poly-2-acrylamido-2-methylpropanesulfonate sodium Methods. Background technique [0002] There are a large number of pathogenic microorganisms in nature. Once these microorganisms invade the human body, they will pose a huge threat to human health. Textiles are the outermost barrier to block foreign matter and protect the human body. With the enhancement of people's awareness of safety and health, the requirements for the hygienic performance of textiles are also getting higher and higher, and materials with antibacterial and bactericidal functions have attracted more and more attention. [0003] Chitosan is the only alkaline polysaccharide in natural polysaccharides, because it contains free amino...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/08D06M15/03D06M15/356C08F120/58D06M101/06
Inventor 任学宏成晓莉殷茂力李蓉
Owner JIANGNAN UNIV
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