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Preparation method of quaternary ammonium salt modified antibacterial textile and antibacterial textile

A technology of antibacterial textiles and quaternary ammonium salts, applied in textiles, papermaking, fiber treatment, etc., can solve the problems of easy shedding of antibacterial molecules, affecting the antibacterial performance of textiles, threats to ecological balance, etc., and achieve the effect of simplifying the preparation process

Inactive Publication Date: 2019-04-05
CGN DASHENG ELECTRON ACCELERATOR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regardless of the method of physical blending, adsorption or bonding, the antibacterial molecules are easy to fall off during the use of textiles carrying antibacterial molecules, which seriously affects the antibacterial performance of textiles, and after the antibacterial agents enter the environment, they will also affect the ecological balance. serious threat

Method used

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  • Preparation method of quaternary ammonium salt modified antibacterial textile and antibacterial textile
  • Preparation method of quaternary ammonium salt modified antibacterial textile and antibacterial textile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] First, the pure cotton fiber is activated: take 2g of pure cotton fiber and place it in a polyethylene bag, and irradiate the pure cotton fabric with a cobalt 60 radiation source. The absorbed dose of the pure cotton fabric is 80kGy. The irradiation time was 17 hours, and the pure cotton fiber after irradiation was obtained, which was stored in cold storage; secondly, the graft polymerization precursor solution was prepared: 12 mL of dimethylaminoethyl methacrylate and 0.7 mg of sodium lauryl sulfate were added to 60 mL of deionized In an Erlenmeyer flask of water, magnetically stir for 1 hour to mix the solution evenly to obtain a graft polymerization precursor solution; again, carry out a graft polymerization reaction: place the Erlenmeyer flask containing the graft polymerization precursor solution in a water bath, weigh Add 1g of the irradiated pure cotton fiber into the above-mentioned Erlenmeyer flask, completely immerse the irradiated cotton fiber into the graft p...

Embodiment 2

[0021] First, activate the polypropylene fiber: put 2g polypropylene fiber (weight average molecular weight: 300,000) in a polyethylene bag, apply cobalt 60 radioactive source to it for irradiation treatment, the irradiation dose is 90kGy, and the irradiation time After 17 hours, the irradiated polypropylene fiber was obtained and stored in cold storage; secondly, the graft polymerization precursor solution was prepared: 12 mL of dimethylaminoethyl methacrylate and 0.7 mg of sodium lauryl sulfate were added to 60 mL of deionized water In the Erlenmeyer flask, stirred for 1h, the solution was mixed evenly to obtain the graft polymerization precursor solution; again, the graft polymerization reaction was carried out: 1g of the irradiated polypropylene fiber was weighed and placed in a container containing the graft polymerization precursor solution In the Erlenmeyer flask, feed nitrogen into the Erlenmeyer flask, remove the air, continue to feed nitrogen for 20 minutes, stop feed...

Embodiment 3

[0023] First, the polyethylene fiber is activated: 2g polyethylene fiber (weight average molecular weight: 300,000) is irradiated with an electron beam in a nitrogen atmosphere, the irradiation dose is 100kGy, and the irradiation time is 10 minutes, and the irradiation Afterwards, polyethylene fibers were stored in cold storage; secondly, the graft polymerization precursor solution was prepared: 10mL dimethylaminoethyl methacrylate and 0.7mg sodium lauryl sulfate were added to an Erlenmeyer flask containing 60mL deionized water, and stirred 1h, the solution was mixed uniformly to obtain a graft polymerization precursor solution; again, graft polymerization was carried out: 1g of the irradiated polyethylene fiber was weighed and placed in a Erlenmeyer flask containing a graft polymerization precursor solution, Feed nitrogen into the flask, remove the air, continue to feed nitrogen for 20 minutes, stop feeding nitrogen, seal the Erlenmeyer flask, place the Erlenmeyer flask in a w...

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Abstract

The invention relates to a preparation method of a quaternary ammonium salt modified antibacterial textile. The preparation method includes the following steps that firstly, a textile base material isput into a mixed solution of vinyl monomers containing tertiary amine groups and sodium lauryl sulfate for a grafting polymerization reaction, so that a grafted tertiary amine group textile base material is obtained; secondarily, the grafted tertiary amine group textile base material and halogenated hydrocarbon have a reaction, so that the quaternary ammonium salt modified antibacterial textile is obtained. Through addition of sodium lauryl sulfate into a grafting precursor solution, a hydrogen abstraction reaction of sodium lauryl sulfate and delocalization of alkyl halide, delocalization electric charges are generated, styrene monomers containing tertiary amine groups are efficiently grafted onto the textile, activated alkyl halide can be more fully quaternized, and finally quaternary ammonium salt is bonded onto the textile with a high grafting rate; in this way, stable and efficient broad-spectrum antibacterial and sterilizing effects are realized, and the preparation process is simplified greatly.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a method for preparing antibacterial textiles modified with quaternary ammonium salts. Background technique [0002] As a medium for spreading diseases, pathogens seriously threaten human health. Establishing an "isolation layer" between the human body and pathogens is the most effective way to prevent diseases. As the most frequently used carrier of pathogens in people's daily life, textiles have attracted people's attention. However, traditional textiles have no effect of isolating and killing pathogenic bacteria. If they are not cleaned in time and effectively, pathogens will grow on textiles. and reproduction, accelerating the spread and spread of the disease. Therefore, the preparation of textiles with antibacterial properties is favored by people. [0003] The current method of preparing textiles with antibacterial properties is to integrate inorganic or organic antibacte...

Claims

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Application Information

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IPC IPC(8): D06M14/04
CPCD06M14/04
Inventor 陈川红李景烨罗洪文虞鸣王自强丁小军梁伟扬季左封玉龙
Owner CGN DASHENG ELECTRON ACCELERATOR TECH
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