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Reduced nano-grade silver antibiotic finishing agent containing spherical polymer brushes, and preparation method thereof

A spherical polymer, nano-silver antibacterial technology, applied in the field of nano-materials and technology, can solve the problems of uneven dispersion, uncontrollable, large nano-silver particle size, etc., and achieve good antibacterial effect and long-lasting antibacterial effect

Inactive Publication Date: 2012-04-04
泉州红瑞兴纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned various preparation methods still have deficiencies, such as the nano-silver particle size is still large, the dispersion is not uniform, and the silver loading is limited and uncontrollable.

Method used

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  • Reduced nano-grade silver antibiotic finishing agent containing spherical polymer brushes, and preparation method thereof
  • Reduced nano-grade silver antibiotic finishing agent containing spherical polymer brushes, and preparation method thereof
  • Reduced nano-grade silver antibiotic finishing agent containing spherical polymer brushes, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Dissolve 2g of sodium dodecyl sulfate (SDS) in 70mL of water and stir evenly, then add 208g of styrene (St), and react with the addition of potassium persulfate (KPS) solution (0.45gKPS dissolved in 20mL of water) At the beginning, the reaction was continued at 80°C for 1h. 10g of styrene sulfonic acid (SS) was slowly added dropwise to the system to avoid the formation of new latex particles, and the addition was completed and cooled to room temperature. 10 g of 2-hydroxy-2-methyl-1-phenyl-1-propanone (HMPP) was dissolved in acetone, added dropwise and stirred evenly, and then placed in 10 times excess water for dilution. The diluted emulsion and 95g of polyethylene glycol methacrylate (PEGMA300) with a molecular weight of 300 were mixed and stirred evenly, and vacuumized and filled with N 2 After repeated 5 times, it was placed under ultraviolet light to initiate polymerization reaction for 1 h. After the reaction was completed, the clot in the system was removed by ...

Embodiment 2～11

[0030] Table 1

[0031]

[0032] The performance indicators of the antibacterial finishing agents prepared in these examples are shown in Table 1.

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Abstract

The invention relates to a reduced nano-grade silver antibiotic finishing agent containing spherical polymer brushes, and a preparation method thereof. The spherical colloidal particles are prepared through steps that: nano-grade polystyrene microspheres are prepared through emulsion polymerization; the polystyrene microspheres are adopted as cores, and styrene sulfonic acid (SS) is further initiated, such that transition layers are formed; a photo-initiator 2-hydroxyl-2-methyl-1-phenyl-1-acetone (HMPP) is firmly adhered onto the polystyrene sulfonic acid layers under the effect of hydrogen bonds with which the particle sizes of the colloidal particles can be controlled by temperatures; polyethylene glycol methacrylate (PEGMA) is added, ultraviolet light radiation is carried out, such that polymerization is initiated, and shells are formed. The brush-shaped shells can be used for reducing and immobilizing nano-grade silver particles. The nano-grade silver particles have a narrow particle size distribution of 710nm. More importantly, the colloidal particles have good stability, such that the nano-grade silver particles can stably exist for a long time, and the antibiotic effect is good and long-lasting.

Description

technical field [0001] The invention belongs to the field of nano-materials and technology, and relates to an antibacterial finishing agent, in particular to a nano-silver antibacterial finishing agent containing spherical polymer brush reduction and a preparation method thereof. The particle size of the prepared nano-silver is 7-10nm, and the dispersion is uniform , good stability and long-lasting antibacterial effect. Background technique [0002] With the improvement of people's living standards, people pay more and more attention to health, and there are new requirements for daily clothing, that is, while paying attention to the beauty and comfort of clothing, additional functions such as shape retention, hygiene and health care are also required. New requirements were also put forward. Therefore, new multi-functional clothing will obtain broad development prospects, and its related fibers and fabrics will also obtain broad development. Among the new functions of cloth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/83D06M15/27C08F285/00C08F2/48C08F2/44D06M101/06
Inventor 庄碧双
Owner 泉州红瑞兴纺织有限公司
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