Antibacterial biodegradable intelligent response hydrogel and preparation method thereof

A biodegradable, hydrogel technology, applied in the field of antibacterial biodegradable intelligent response hydrogel and its preparation, can solve the problems of poor heat resistance, short validity period, harm, etc., and achieve antibacterial effect, efficient antibacterial effect, strong antibacterial effect Effective antibacterial effect

Pending Publication Date: 2022-03-25
汉中聚智达远环能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing antibacterial deodorants are mainly organic antibacterial agents, and their active ingredients are mainly imidazole, thiazole, vanillin, and quaternary ammonium salts. The use of such antibacterial materials can have a fatal effect on bacteria and microorganisms immediately, but adsorption and slow release The performance is relatively weak, and the residual substances after use will cause potential harm to rivers, organisms, and soil, and it is difficult to enrich and recycle
However, these organic substances have poor heat resistance, are easy to hydrolyze in humid environment, have a short validity period, and have poor adsorption and slow-release effects.
Microorganisms such as bacteria are more likely to grow in a humid environment than in a dry environment, and a large amount of such antibacterial agents will produce resistance to the bacteria themselves

Method used

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  • Antibacterial biodegradable intelligent response hydrogel and preparation method thereof
  • Antibacterial biodegradable intelligent response hydrogel and preparation method thereof
  • Antibacterial biodegradable intelligent response hydrogel and preparation method thereof

Examples

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preparation example Construction

[0026] The specific preparation methods include:

[0027] 1) Dissolve 1-3 parts of flavonoids in 10-20ml of ether for later use;

[0028] 2) Dissolve 6-12 parts of chitosan in water (solid-to-liquid ratio is (1-2):(50-200)), add 3-5 parts of polyethylene glycol and fully stir to obtain sugar solution for subsequent use;

[0029] 3) Dissolve 2-4 parts of sodium humate in water (solid-to-liquid ratio (1-3): (100-300)), and obtain the sodium humate solution for later use;

[0030] 4) Add 1), 2), and 3) solutions with a volume ratio of (1-5):(1-5):(1-5) to the three-necked flask to emulsify for 30 minutes, add polymerized monomers, 0.05-0.2 parts of nano oxide, stirred at 40°C for 30 minutes, and added dropwise 0.05-0.1 part of initiator and 0.08-0.15 part of cross-linking agent. Raise the temperature to 80°C and continue stirring until a gel-like product appears;

[0031] 5) The gel-like product was washed three times with absolute ethanol and water respectively, and dried und...

Embodiment 1

[0034] The invention discloses a preparation method of an antibacterial and biodegradable intelligent response hydrogel, which comprises the following steps:

[0035] 1) 1 part of curcumin is dissolved in 10ml of ether for subsequent use;

[0036] 2) Dissolve 6 parts of chitosan quaternary ammonium salt in water (solid-to-liquid ratio is 1:50), add 3 parts of polyethylene glycol-400 and fully stir to obtain chitosan quaternary ammonium salt solution for subsequent use;

[0037] 3) Dissolve 2 parts of sodium humate in water (solid-to-liquid ratio is 1:100) to obtain a sodium humate solution for subsequent use;

[0038] 4) Add 1), 2), and 3) solutions with a volume ratio of 1:1:1 to the three-necked flask to emulsify for 30 minutes, add 2 parts of acrylamide and 0.05 parts of nano-SiO2, stir at 40 ° C for 30 minutes, and drop 0.05 parts Potassium persulfate with 0.08 parts of N,N-dimethylbisacrylamide. Raise the temperature to 80°C and continue stirring until a gel-like produc...

Embodiment 2

[0041] The invention discloses a preparation method of an antibacterial and biodegradable intelligent response hydrogel, which comprises the following steps:

[0042] 1) Dissolve 2 parts of dihydroflavone in 12ml of ether for later use;

[0043] 2) Dissolve 8 parts of chitosan quaternary ammonium salt in water (solid-to-liquid ratio is 2:50), add 3 parts of polyethylene glycol-400 and fully stir to obtain chitosan quaternary ammonium salt solution for subsequent use;

[0044] 3) Dissolve 3 parts of sodium humate in water (solid-to-liquid ratio is 3:100) to obtain sodium humate solution for later use;

[0045] 4) Add 1), 2), and 3) solutions with a volume ratio of 2:1:1 to the three-necked flask to emulsify for 30 minutes, add acrylamide and 0.08 parts of nano-SiO2, stir at 40°C for 30 minutes, and dropwise add 0.05 parts of potassium persulfate With 0.08 parts of N,N-dimethylbisacrylamide. Raise the temperature to 80°C and continue stirring until a gel-like product appears; ...

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Abstract

The invention discloses an antibacterial biodegradable intelligent response hydrogel, which is prepared from the following ingredients in parts by weight: 1 to 3 parts of flavonoid substances, 6 to 12 parts of chitosan, 3 to 5 parts of polyethylene glycol, 2 to 4 parts of sodium humate, 5 to 8 parts of polymeric monomers, 0.05 to 0.2 part of nanometer oxides, 0.05 to 0.1 part of initiators and 0.08 to 0.15 part of cross-linking agents. The invention further discloses a corresponding preparation method which can effectively respond to different environments quickly, can be biologically degraded and efficiently play an antibacterial role, and in addition, the antibacterial component sodium humate is added, so that air can be effectively purified, peculiar smells in the environment can be effectively adsorbed, and multiple effects are achieved.

Description

technical field [0001] The invention belongs to the technical field of application of chemical life products, and in particular relates to an antibacterial and biodegradable intelligent response hydrogel and a preparation method thereof. Background technique [0002] Antimicrobial agents are a class of chemical agents that can keep the growth and reproduction of certain microorganisms below necessary levels for a certain period of time. There are four main mechanisms: interfering with the synthesis of cell walls; damaging the bacterial cell membrane and destroying the barrier function of the cell membrane; affecting the synthesis of bacterial proteins, causing bacteria to lose the material basis for growth and reproduction; affecting bacterial nucleic acid metabolism. [0003] Existing antibacterial deodorants are mainly organic antibacterial agents, and their active ingredients are mainly imidazole, thiazole, vanillin, and quaternary ammonium salts. The use of such antibact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/075C08L5/08C08L71/02C08L97/00C08L33/26C08L33/02C08L33/20C08K3/36C08K5/13C08K5/1545
CPCC08J3/075C08J2305/08C08J2471/02C08J2497/00C08J2433/26C08J2433/02C08J2433/20C08K2201/011C08K3/36C08K2003/2296C08K2003/2241C08K5/13C08K5/1545
Inventor 李欣玥孙鹏飞张贵梓张贵贤
Owner 汉中聚智达远环能科技有限公司
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