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Method for preparing silver-based inorganic antibacterial material

An inorganic antibacterial material and silver-based technology, which is applied in the field of preparation of silver-based inorganic antibacterial materials, can solve the problems of large loss of nano-silver, decreased antibacterial effect of fabrics, and reduced antibacterial effect, so as to improve antibacterial effect, avoid loss of nano-silver, The effect of improving efficiency

Inactive Publication Date: 2019-04-26
DET IND DESIGN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The existing silver-based inorganic antibacterial knitted fabric loses a lot of nano-silver after washing, which leads to a significant decline in the antibacterial effect of the fabric
[0004] 2. Nano-silver in existing silver-based inorganic antibacterial knitted fabrics is easy to migrate and aggregate, which reduces the antibacterial effect and needs to be improved. Therefore, we propose a preparation method for silver-based inorganic antibacterial materials

Method used

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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  • Method for preparing silver-based inorganic antibacterial material
  • Method for preparing silver-based inorganic antibacterial material
  • Method for preparing silver-based inorganic antibacterial material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The knitted fabric was washed with ionized water for 10 minutes, dried with a dryer, and then sealed and placed.

[0026] 1) Take a quantitative concentration of 0.3mol / L potassium persulfate solution, use sodium hydroxide to adjust the pH until the pH value is 9, the initiator configuration is completed, and the knitted fabric is put into the initiator, the bath ratio is 1:30, Then the temperature is raised to 70 degrees Celsius, and the dipping treatment is carried out at this temperature for 30 minutes.

[0027] 2) The grafting reaction of the knitted fabric is more efficient after being impregnated with the initiator. A certain amount of 0.5 mol / L methacrylamide is added to the impregnated solution of the knitted fabric, and then the grafting reaction is carried out at 70 degrees Celsius for 1.5 hours.

[0028] 3) After the grafting reaction is completed, the knitted fabric is taken out, fully washed with water, and then extracted with an acetone Soxhlet extractor f...

Embodiment 2

[0032] 1) Take a quantitative concentration of 0.3mol / L potassium persulfate solution, use sodium hydroxide to adjust the pH until the pH value is 9, the initiator configuration is completed, and the knitted fabric is put into the initiator, the bath ratio is 1:30, Then the temperature is raised to 70 degrees Celsius, and the dipping treatment is carried out at this temperature for 30 minutes.

[0033] 2) The grafting reaction of the knitted fabric is more efficient after being impregnated with the initiator. A certain amount of 0.5 mol / L methacrylamide is added to the impregnated solution of the knitted fabric, and then the grafting reaction is carried out at 70 degrees Celsius for 1.5 hours.

[0034] 3) After the grafting reaction is completed, the knitted fabric is taken out, fully washed with water, and then extracted with an acetone Soxhlet extractor for 8 hours to remove the polymethacrylamide homopolymer on the surface of the grafted knitted fabric.

[0035] 4) Immerse ...

Embodiment 3

[0039] 1) Take a quantitative concentration of 0.3mol / L potassium persulfate solution, use sodium hydroxide to adjust the pH until the pH value is 9, the initiator configuration is completed, and the knitted fabric is put into the initiator, the bath ratio is 1:30, Then the temperature is raised to 70 degrees Celsius, and the dipping treatment is carried out at this temperature for 30 minutes.

[0040] 2) The grafting reaction of the knitted fabric is more efficient after being impregnated with the initiator. A certain amount of 0.5 mol / L methacrylamide is added to the impregnated solution of the knitted fabric, and then the grafting reaction is carried out at 70 degrees Celsius for 1.5 hours.

[0041] 3) After the grafting reaction is completed, the knitted fabric is taken out, fully washed with water, and then extracted with an acetone Soxhlet extractor for 8 hours to remove the polymethacrylamide homopolymer on the surface of the grafted knitted fabric.

[0042] 4) Immerse ...

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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Abstract

The invention discloses a method for preparing a silver-based inorganic antibacterial material. By modifying a methacrylamide graft knitted fabric by maleic anhydride, by virtue of double effects suchas adsorption and complexation of amino and double bond rich electrons on silver ions, adsorption of the silver ion is enhanced, and the loss of lots of nano-silver caused by washing of the knitted fabric is avoided. Moreover, by virtue of the reduction effect of the amino and double bond rich electrons on the silver ions, the negative ions are reduced into nano silver, the independent nano silver reduction step is reduced, and the efficiency is improved. Meanwhile, by virtue of the double effects such as adsorption and complexation of the amino and double bond rich electrons on silver ions,migration of the silver ion in the steaming reduction process is effectively controlled, gathering of the nano silver is effectively controlled, and the antibacterial effect is improved.

Description

technical field [0001] The invention relates to the technical field of nano-silver antibacterial materials, in particular to a method for preparing silver-based inorganic antibacterial materials. Background technique [0002] Most of the nano-silver particle size is about 25 nanometers, which has a strong inhibitory and killing effect on dozens of pathogenic microorganisms such as Escherichia coli, Neisseria gonorrhoeae, and Chlamydia trachomatis, and will not produce drug resistance. Cotton socks made of nano-silver and combed cotton fibers have good antibacterial and deodorant effects. Combining knitted fabrics with nano-silver greatly improves the characteristics of the knitted fabric itself and also has a strong antibacterial effect, but the existing The method of preparation is flawed. [0003] 1. The loss of nano-silver in the existing silver-based inorganic antibacterial knitted fabric after washing is very large, resulting in a significant decline in the antibacteri...

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): D06M11/83D06M14/00
CPCD06M11/83D06M14/00D06M16/00
Inventor 杨学太卢丹孙彬骆燕明
Owner DET IND DESIGN
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