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Preparation method for biodegradable high anti-bacterial anti-mold agent

An antibacterial and antifungal agent, biodegradable technology, applied in botany equipment and methods, biocides, chemicals for biological control, etc., can solve the problems of poor biodegradability, antifungal agent and poor bactericidal performance, and achieve Good biocompatibility, enhanced antibacterial effect, high porosity effect

Inactive Publication Date: 2018-03-09
高产明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for preparing a biodegradable high antibacterial and antifungal agent in view of the defects of poor bactericidal properties and poor biodegradability of the current antifungal agents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020]Weigh 12g of diatomite and grind it for 8 minutes, pass through a 100-mesh sieve, collect the sieved powder, mix the sieved powder and titanate coupling agent PN-101 at a mass ratio of 3:1 and stir for 12 minutes to obtain a mixture, and continue to Add 7% sucrose of mixture mass and 0.7% yogurt of mixture mass, put into fermenter, seal and ferment at 30℃ for 10 days, after fermentation, take out the fermentation product, which is modified diatomite powder, according to mass The ratio is 1:1:2. Mix shrimp shells and crab shells in a beaker with a mass fraction of 24% hydrochloric acid and stir for 10 minutes. After stirring, put 20 mL of sodium hydroxide solution with a concentration of 8 mol / L and continue mixing at 25 ° C. Stir for 30 minutes, then rinse with hydrogen peroxide with a concentration of 5mol / L for 3 times, dry naturally, and discharge, which is self-made chitosan. The mass ratio of homemade chitosan, 2-methacryloyl Oxyethylphosphorylcholine and sodium vin...

example 2

[0022] Weigh 16g of diatomite, grind it for 9 minutes, pass it through a 100-mesh sieve, collect the sieved powder, mix the sieved powder and titanate coupling agent PN-101 at a mass ratio of 3:1 and stir for 14 minutes to obtain a mixture, and continue to Add 7% sucrose of mixture mass and 0.7% yogurt of mixture mass into the fermenter, seal and ferment at 40°C for 11 days, after fermentation, take out the fermentation product, which is modified diatomite powder, according to mass The ratio is 1:1:2. Mix shrimp shells and crab shells in a beaker with a mass fraction of 24% hydrochloric acid and stir for 15 minutes. After stirring, put 25 mL of sodium hydroxide solution with a concentration of 8 mol / L and continue mixing at 30 ° C. Stir for 40 minutes, then rinse with hydrogen peroxide with a concentration of 5mol / L for 4 times, dry naturally, and discharge, which is homemade chitosan. The homemade chitosan, 2-methacryloyl Oxyethylphosphorylcholine and sodium vinyl sulfonate w...

example 3

[0024] Weigh 20g of diatomite, grind it for 10min, pass it through a 100-mesh sieve, collect the sieved powder, mix the sifted powder and titanate coupling agent PN-101 at a mass ratio of 3:1 and stir for 16min to obtain a mixture, and continue to Add 7% sucrose of mixture mass and 0.7% yogurt of mixture mass into the fermenter, and seal and ferment at 50°C for 12 days. After the fermentation, take out the fermentation product, which is modified diatomite powder. The ratio is 1:1:2. Mix shrimp shells and crab shells in a beaker with a mass fraction of 24% hydrochloric acid and stir for 20 minutes. After stirring, put 30 mL of sodium hydroxide solution with a concentration of 8 mol / L and continue mixing at 35 ° C. Stir for 50 minutes, then wash 5 times with hydrogen peroxide with a concentration of 5mol / L, dry naturally, and discharge, which is self-made chitosan. The mass ratio of homemade chitosan, 2-methacryloyl Oxyethylphosphorylcholine and sodium vinyl sulfonate were mixed...

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PUM

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Abstract

The invention discloses a preparation method for a biodegradable high anti-bacterial anti-mold agent, and belongs to the technical field of the environmental protection preparation. The method comprises the following steps: according to the features of kieselguhr, such as high porosity and high liquid adsorption rate, using the kieselguhr as a carrier of the anti-mold agent, modifying kieselguhr powder by a titanate coupling agent, and extracting chitosan with the good biocompatibility, the biodegradability and the better anti-bacterial anti-corrosion property from shrimp shells and crab shells in acidity and alkaline reaction processes successively, grafting 2-methacryloyloxyethyl phosphorylcholine and sodium ethylenesulphonate on the chitosan, forming a derivative with the amphoteric iron characteristic, high molecular weight and water solubility, continuously reacting to generate quaternary ammonium salt in the high temperature and high pressure through dodecyl dimethylamine, isopropanol, sodium hydroxide solution and deionized water and the protection of chloromethane, enabling the quaternary ammonium salt to hybrid-modify with trimethylchlorosilane and a hydrochloric acid, andfurther improving the anti-bacterial property of the anti-mold agent. The anti-mold agent has the extensive using prospect.

Description

technical field [0001] The invention discloses a preparation method of a biodegradable high antibacterial and antifungal agent, belonging to the technical field of environmental protection. Background technique [0002] Antifungal agent refers to a preparation that has the effect of killing or inhibiting mold and preventing the application object from going moldy. Main ingredients of antifungal agent: quaternary ammonium salt derivatives, Cathone, surfactant, synergist, etc. Agents that prevent microbes from causing mildew. There are phenols (such as phenol), chlorophenols (such as pentachlorophenol), organic mercury salts (such as phenylmercury oleate), organic copper salts (such as 8-hydroxyquinoline copper), organic tin salts (such as chloride Triethyl or tributyltin, etc.), and inorganic salts such as copper sulfate, mercuric chloride, and sodium fluoride. Used in plastics, rubber, textiles, paints and insulating materials, etc. Classification of antifungal agents: a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/08A01N57/16A01N43/80A01N43/54A01N33/12A01P1/00A01P3/00
CPCA01N25/08A01N33/12A01N43/54A01N43/80A01N57/16
Inventor 高产明杨立军陈莉莉
Owner 高产明
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