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A kind of composite bactericidal microsphere and its preparation method and application

A technology of microspheres and chlorine spheres, applied in the field of sterilization, can solve problems such as residual water bodies of soluble fungicides, and achieve the effects of realizing batch production and automatic control, reducing environmental pollution and high mechanical strength.

Active Publication Date: 2020-05-08
ZHEJIANG GONGSHANG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a compound bactericidal microsphere and its preparation method, which is used to solve the problem of soluble bactericide residual water in the prior art

Method used

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  • A kind of composite bactericidal microsphere and its preparation method and application
  • A kind of composite bactericidal microsphere and its preparation method and application
  • A kind of composite bactericidal microsphere and its preparation method and application

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Embodiment 1

[0032] Measure 40 mL of reaction solvent into a three-necked flask with a volume of 100 mL, and add 60.0 mg of precursor (chlorine balls) to soak overnight. After the matrix is ​​fully swollen, add a certain molar ratio of 5-mercapto-1-methyltetrazole and catalyst metal sodium into the three-necked flask, stir and react at a certain temperature, and pass nitrogen protection throughout the reaction. After reacting for 12 hours, filter out the microspheres in the three-neck flask, and then soak and wash them with the reaction solvent until the washing liquid is colorless or there is no obvious attachment on the surface of the microspheres. After washing with distilled water, soak them in NaOH aqueous solution, wash them with water, and then use After repeated washing with absolute ethanol, acetone, and ether several times, the filtered microspheres were vacuum-dried at 50°C for later use.

[0033] The present invention has carried out structural characterization to the synthesiz...

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Abstract

The invention discloses a composite sterilizing microsphere, a preparation method and an application of the composite sterilizing microsphere. The preparation method includes steps of (1), placing a chorine ball in a reaction solvent until the chorine ball is fully dissolved and swelled; (2), adding 5-sulfydryl-1-methyl tetrazole and catalyst in a product of step (1), and performing nitrogen protection and stirring reaction for 12 hours; (3), filtering the product in step (2) to obtain a micro-sphere; after washing by distilled water, soaking the micro-sphere by NaOH solution; after repeatedly washing, placing a filter micro-sphere at 50 DEG C and performing vacuum drying; (4), under the nitrogen protection condition, placing the product in step (3) in propylene epoxide, and stirring the product to react for 6 hours at 20 DEG C; adding benzyl chloride and filtering after stirring for 6 hours under room temperature; repeatedly washing and vacuum-drying the product; (5), placing the product in step (4) in HAc-NaAC buffer liquid to fully dissolve and swell; (6), adding Ag+solution in the product in step (5), and performing constant-temperature oscillation at the rotate speed of 100 rpm.min-1 under the room temperature to obtain the composite sterilizing microsphere after adsorption equilibrium.

Description

technical field [0001] The invention relates to the field of sterilization, in particular to a composite bactericidal microsphere and its preparation method and application. Background technique [0002] At present, the commonly used sterilization methods for drinking water and beverages are: thermal sterilization and non-thermal sterilization. Among them, thermal sterilization mainly includes: wet heat sterilization, dry heat sterilization, microwave sterilization, electric heating sterilization and electric field sterilization, etc.; non-thermal sterilization mainly includes: chemical and biological sterilization, radiation sterilization, ultraviolet sterilization, pulse sterilization, ultra-high static pressure sterilization , Pulse electric field (PEF) sterilization and vibration magnetic field sterilization, etc. Heat sterilization can be divided into high heat sterilization and low heat sterilization. High heat sterilization is the use of high temperature to denature...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N59/16A01N25/10A01P1/00B01J13/02C02F1/50
CPCA01N25/10A01N59/16B01J13/02C02F1/50
Inventor 熊春华阎亚利何若铭勇括
Owner ZHEJIANG GONGSHANG UNIVERSITY
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