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Antibacterial chopping board and preparation method thereof

A technology of cutting board and antibacterial agent, applied in the field of cutting board manufacturing, can solve the problems of poor coating stability, no antibacterial and antibacterial cutting board, etc., and achieve the effect of strong bonding force

Pending Publication Date: 2021-09-14
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems that the existing common cutting boards have no antibacterial performance and the coating stabi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] An antibacterial cutting board, the preparation raw materials (parts by weight) include: 20 parts of polyethylene, 50 parts of 1.0 mol / liter sulfamic acid aqueous solution, and 30 parts of 0.1 mol / liter silver nitrate solution. Its preparation method is:

[0018] (1) Prepare 20 parts of polyethylene into a common chopping board by injection molding, completely immerse the cutting board in 50 parts of sulfamic acid aqueous solution, after sulfonation reaction for 3 hours, take out the cutting board and wash it with ultrapure water for several times until the residue on the cutting board Wash off all the sulfamic acid on the surface;

[0019] (2) Immerse the above sulfonated cutting board in 30 parts of 0.1 mol / L silver nitrate solution for ion exchange, take out the cutting board after 24 hours and wash it with ultrapure water for several times until all the silver nitrate solution remaining on the surface of the cutting board is washed. Lose;

[0020] (3) After the cu...

Embodiment 2

[0022] An antibacterial cutting board, the preparation raw materials (parts by weight) include: 30 parts of polypropylene, 50 parts of 1.0 mole / liter sulfamic acid aqueous solution, and 30 parts of 0.1 mole / liter silver nitrate solution. Its preparation method is:

[0023] (1) Prepare 30 parts of polypropylene into a common chopping board by injection molding, immerse one side of the cutting board in 50 parts of sulfamic acid aqueous solution, after sulfonation reaction for 3 hours, take out the cutting board and wash it with ultrapure water for several times until the residue on the cutting board Wash off all the sulfamic acid on the surface;

[0024] (2) Immerse the chopping board after sulfonation on the above one side in 30 parts of 0.1 mol / L silver nitrate solution for ion exchange, take out the chopping board after 24 hours and wash it with ultrapure water for several times until all the silver nitrate solution remaining on the surface of the chopping board is completely...

Embodiment 3

[0027] An antibacterial cutting board, the preparation raw materials (parts by weight) include: 20 parts of polyethylene, 40 parts of concentrated sulfuric acid, and 30 parts of 0.1 mol / liter silver nitrate solution. Its preparation method is:

[0028] (1) Prepare 20 parts of polyethylene into a common chopping board by injection molding, and completely immerse the cutting board in 40 parts of concentrated sulfuric acid. Sulfuric acid washes away completely;

[0029] (2) Immerse the above sulfonated cutting board in 30 parts of 0.1 mol / L silver nitrate solution for ion exchange, take out the cutting board after 24 hours and wash it with ultrapure water for several times until all the silver nitrate solution remaining on the surface of the cutting board is washed. Lose;

[0030] (3) After the cutting board prepared above was dried, it was irradiated with ultraviolet light for 24 hours to obtain an antibacterial cutting board.

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PUM

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Abstract

The invention discloses an antibacterial chopping board and a preparation method thereof. The preparation route is sulfonation-ion exchange-in-situ reduction, specifically, polyethylene or polypropylene is used as a raw material, a common chopping board is prepared through injection molding processing, sulfonate groups are introduced to the surface of the chopping board through sulfonation reaction, and antibacterial components are introduced to the surface of the chopping board through exchange with silver ions, copper ions and the like, and the simple substance nano-based antibacterial chopping board with a single surface or double surfaces capable of resisting bacteria is further prepared through an in-situ reduction reaction. The prepared antibacterial chopping board is stable in antibacterial component and excellent in antibacterial performance.

Description

technical field [0001] The invention relates to the technical field of cutting board manufacturing, in particular to an antibacterial cutting board and a preparation method thereof. Background technique [0002] A chopping board is one of the must-haves in the kitchen, mainly used for cutting vegetables and so on. Studies have shown that the bacteria content of traditional chopping boards can be as high as 200 million per square centimeter, seriously endangering health. The development of antibacterial chopping boards with excellent antibacterial properties is of great significance for ensuring health. The preparation of antibacterial chopping boards mostly adopts surface coating method to prepare at present. For example, Chinese patent CN201910265244.5 discloses an antibacterial cutting board, in which the antibacterial board layer and the cutting board base layer are connected together by means of glue. But, this method prepares a significant problem of antibacterial ch...

Claims

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Application Information

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IPC IPC(8): C08J7/12C08J7/14C08L23/06C08L23/12
CPCC08J7/12C08J7/14C08J2323/06C08J2323/12
Inventor 姚志良姜善学曹鑫悦李鑫
Owner BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY