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Antibacterial agent, preparation method and antibacterial application in plastics, textiles and coatings

An antibacterial agent and reaction technology, applied in the field of antibacterial applications, can solve problems such as limiting the scope of application, and achieve the effects of improving stability, uniform distribution, and improving dispersibility

Active Publication Date: 2022-06-24
济南金彩阳新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chitosan is insoluble in water and organic solvents, only soluble in acidic solutions, which greatly limits its application range

Method used

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  • Antibacterial agent, preparation method and antibacterial application in plastics, textiles and coatings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A preparation method of an antibacterial agent, comprising the following steps:

[0041] 1.5g of chitosan was dispersed in 250ml of isopropanol for ultrasonic treatment, ultrasonic power was 65W, ultrasonic time was 30min; The reaction was carried out at 60°C for 3 hours; the reaction was completed, washed and dried.

Embodiment 2

[0043] A preparation method of an antibacterial agent, comprising the following steps:

[0044] 1.5g of chitosan was dispersed in 250ml of isopropanol for ultrasonic treatment, ultrasonic power was 65W, ultrasonic time was 30min; Reaction at 60°C for 3h; after the reaction is over, washed and dried to obtain chitosan quaternary ammonium salt;

[0045] Dissolve 1.5g of the above-mentioned chitosan quaternary ammonium salt, 4g of graft monomer, 0.01g of polymerization inhibitor and 0.4g of initiator in 20ml of deionized water, stir evenly, and heat for 5min at 130 °C; after the reaction, wash, drying.

[0046] Described graft monomer is citric acid;

[0047] Described initiator is ammonium persulfate;

[0048] The polymerization inhibitor is 4-methoxyphenol.

Embodiment 3

[0050] A preparation method of an antibacterial agent, comprising the following steps:

[0051] 1.5g of chitosan was dispersed in 250ml of isopropanol for ultrasonic treatment, ultrasonic power was 65W, ultrasonic time was 30min; Reaction at 60°C for 3h; after the reaction is over, washed and dried to obtain chitosan quaternary ammonium salt;

[0052] 1.5g of the above chitosan quaternary ammonium salt, 4g of grafting monomer, 0.01g of polymerization inhibitor, 0.4g of initiator and 0.02g of nano-TiO 2 Dissolve in 20ml of deionized water, stir evenly, heat and react at 130°C for 5min; after the reaction, wash and dry.

[0053] Described graft monomer is citric acid;

[0054] Described initiator is ammonium persulfate;

[0055] The polymerization inhibitor is 4-methoxyphenol.

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Abstract

The invention discloses an antibacterial agent, a preparation method and an antibacterial application in plastics, textiles and coatings. The preparation method of described antibacterial agent comprises the following steps: chitosan quaternary ammonium salt, grafting monomer, polymerization inhibitor, initiator and nanometer TiO 2 Dissolve in 10‑30ml deionized water, stir evenly, heat and react at 110‑150°C for 5‑20min; after the reaction, wash and dry. The antibacterial agent prepared by the invention has good antibacterial performance, wear resistance and heat resistance. This antibacterial agent has complementary advantages, synergistic effect, and effectively improves the antibacterial property.

Description

technical field [0001] The invention relates to the technical field of antibacterials, in particular to an antibacterial agent, a preparation method and antibacterial applications in plastics, textiles and coatings. Background technique [0002] With the rapid development of the economy, people pay more and more attention to their own health, so the requirements for the cleanliness of clothing, daily necessities, living and working environments are also getting higher and higher. Some tools and utensils that people often touch, such as bus vehicles, office and living furniture, electrical equipment, toys, etc., are very easy to breed some bacteria, which become the way for pathogens to enter the human body and cause diseases. Therefore, antibacterial agents have become a research hotspot in recent years, which can greatly reduce the reproduction and spread of microorganisms such as bacteria. [0003] At present, antibacterial agents are divided into inorganic antibacterial ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/08C08L5/08C09D5/14A01N33/12A01N43/16A01P1/00D06M15/03
CPCC08B37/003C08L5/08C09D5/14A01N33/12A01N43/16D06M15/03D06M16/00
Inventor 袁娟
Owner 济南金彩阳新材料科技有限公司