Graphene oxide-based anti-bacterial finishing agent for dyeing, and preparation method and application thereof

An antibacterial finishing agent, graphene technology, applied in the field of antibacterial finishing agent, one-step dyeing of textiles, antibacterial finishing, and graphene oxide-based dyeing fields, can solve the problems of complex composite process of cytotoxic graphene oxide and fabrics, and improve the combination Fastness, simple handling, low cytotoxicity effect

Active Publication Date: 2013-03-27
常熟市亿盛织造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the cytotoxicity of existing inorganic antibacterial agents and organic antibacterial agents

Method used

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  • Graphene oxide-based anti-bacterial finishing agent for dyeing, and preparation method and application thereof
  • Graphene oxide-based anti-bacterial finishing agent for dyeing, and preparation method and application thereof
  • Graphene oxide-based anti-bacterial finishing agent for dyeing, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Disperse 1g of graphite oxide into 10ml of N,N-dimethylformamide (DMF) solution, and ultrasonically treat it for 1h to obtain a graphene oxide (GO-COOH) dispersion;

[0031] (2) Mix the above graphene oxide dispersion with 100ml thionyl chloride (SOCl 2 ) solutions were mixed, then heated to 70°C, and reacted for 72h under stirring. After the reaction, centrifuged, the solid was washed 3 times with anhydrous tetrahydrofuran (THF), and then vacuum-dried at 60°C for 24h to obtain acyl chloride graphite oxide Alkenes (GO-COCl);

[0032] (3) Disperse 6g chitosan (relative molecular weight 5000, deacetylation degree 85%) in 360ml N,N-methylformamide, heat to 140°C under stirring, keep warm for 1h, after chitosan is completely dissolved, add 1g GO-COCl was reacted at 140°C for 48h. After the reaction, the solvent was removed by suction filtration, and the solid was washed 3 times with 2% acetic acid solution to remove unreacted chitosan, then washed 5 times with distille...

Embodiment 2

[0044] (1) Disperse 1g of graphite oxide into 40ml of N,N-methylacetamide (DMAC) solution, and ultrasonically treat it for 2 hours to obtain a graphene oxide (GO-COOH) dispersion;

[0045] (2) Mix the above graphene oxide dispersion with 60ml of thionyl chloride (SOCl 2 ) solutions were mixed, heated to 80°C, and reacted for 24 hours under stirring. After the reaction, centrifuged, the solid was washed with N,N-dimethylacetamide (DMAC) for 5 times, and then vacuum-dried at 80°C for 12 hours. Obtain graphene oxide (GO-COCl) of acid chloride;

[0046] (3) Disperse 10g chitosan (relative molecular weight 30000, deacetylation degree 95%) in 1000ml N,N-methylacetamide, heat to 120°C under stirring, keep warm for 2h, after chitosan is completely dissolved, Add 1g of GO-COCl, and react at 120°C for 96h. After the reaction, remove the solvent by suction filtration, wash the solid with 5% citric acid solution for 5 times, remove unreacted chitosan, and wash with distilled water for 3 ...

Embodiment 3

[0051] (1) Disperse 1g of graphite oxide into 20ml of N,N-dimethylformamide (DMF) solution, and ultrasonically treat it for 1.5h to obtain a graphene oxide (GO-COOH) dispersion;

[0052] (2) Mix the above graphene oxide dispersion with 80ml of thionyl chloride (SOCl 2 ) solutions were mixed, heated to 75°C, and reacted for 36h under stirring. After the reaction, centrifuged, the solid was washed with N,N-dimethylformamide (DMF) for 4 times, and then vacuum-dried at 70°C for 12h. Obtain graphene oxide (GO-COCl) of acid chloride;

[0053] (3) Disperse 8g chitosan (relative molecular weight 10000, degree of deacetylation 90%) in 640ml mixed solution of N,N-methylacetamide and N,N-methylformamide (the volume ratio of the two is 1: 1), heat to 130°C under stirring, keep warm for 1.5h, after the chitosan is completely dissolved, add 1g GO-COCl, react at 130°C for 60h, after the reaction, remove the solvent by suction filtration, use a mass concentration of 3% Wash the solid matter...

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Abstract

The invention overcomes the defects of cytotoxicity of the existing inorganic antibacterial agent and organic antibacterial agent, and complicated compounding process of graphene oxide and fabric, and provides a graphene oxide-based anti-bacterial finishing agent for dyeing, wherein the graphene oxide-based anti-bacterial finishing agent is a composite material of chitosan/graphene oxide/dye. A preparation method of the graphene oxide-based anti-bacterial finishing agent for dyeing comprises the steps of firstly, carrying out acylating chlorination on graphene oxide based on the reaction activity of carboxyl at the surface of graphene oxide, then covalently grafting a natural antibacterial material chitosan to graphene oxide based on the reactivity between acyl chloride and active amino or hydroxyl, and adsorbing the dye on the plane of graphene oxide by phi-phi interaction between graphene oxide and a water-soluble dye. The graphene oxide-based anti-bacterial finishing agent for dyeing can be applied to textiles. Graphene oxide which has no toxic or side effect on a human body, and natural cationic polymer chitosan are selected as antibacterial components, so that the cytotoxicity is low.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to a dyeing and antibacterial finishing agent based on graphene oxide and a method for realizing one-step dyeing and antibacterial finishing of textiles by using the auxiliary agent. Background technique [0002] With the improvement of people's living standards and the enhancement of awareness of disease prevention and resistance, antibacterial functional textiles are more and more popular. The preparation of antibacterial functional textiles is usually to process antibacterial agents on textiles by blending spinning or functional finishing. Common antibacterial agents mainly include: organic antibacterial agents and inorganic antibacterial agents. Organic antibacterial agents are mostly quaternary ammonium salts, guanidines, fatty acids and metal compounds, etc., most of which are toxic and not environmentally friendly; inorganic antibacterial agents, especially silv...

Claims

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Application Information

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IPC IPC(8): D06M11/74D06M15/03D06P1/48
Inventor 彭勇刚纪俊玲汪媛赵晓燕施建平
Owner 常熟市亿盛织造有限公司
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