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NT-BMPkE with bacteria resistance as well as preparation and application thereof

A technology of epoxy styrene acrylate and Pickering emulsion, which is applied in the polymer field and can solve the problems of easy discoloration, poor heat resistance and high cost of antibacterial coatings

Inactive Publication Date: 2014-01-22
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the preparation of antibacterial coatings is mainly obtained by adding specific antibacterial agents to traditional coatings. Such antibacterial coatings are prone to discoloration, high cost (inorganic), poor heat resistance, and toxic decomposition products (organic), etc., which are not conducive to wider use. research and development

Method used

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  • NT-BMPkE with bacteria resistance as well as preparation and application thereof
  • NT-BMPkE with bacteria resistance as well as preparation and application thereof
  • NT-BMPkE with bacteria resistance as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] (1) Preparation of Epoxy-containing Styrene Acrylate Copolymer Pickering Emulsion

[0051] Raw material ratio: by weight

[0052] 10 parts of nano titanium dioxide, 50 parts of methyl methacrylate and butyl acrylate, 50 parts of styrene, 50 parts of glycidyl methacrylate, 10 parts of sodium bicarbonate, 10 parts of potassium persulfate, 50 parts of deionized water.

[0053] Preparation process: Add nano-titanium dioxide and deionized water into the dispersing cup, adjust the pH value of the solution to 1 with dilute HCl, disperse with a high-speed disperser, then move to the reactor, raise the temperature to 60°C, and dissolve the methyl Methyl acrylate, butyl acrylate, styrene, glycidyl methacrylate mixed monomers, and potassium persulfate solution were added dropwise to the reactor within 5 hours. After the dropwise addition, continue to stir and react for 4 hours. After the reaction is complete, a blue-phase white Pickering emulsion is obtained; filter through a 300...

Embodiment 2

[0059] (1) Preparation of Titanium Dioxide Stabilized Acrylate Copolymer Pickering Emulsion

[0060] Raw material ratio: by weight

[0061] 1 part of nano titanium dioxide, 1 part of methyl methacrylate, 10 parts of butyl acrylate, 5 parts of styrene, 10 parts of glycidyl methacrylate, 1 part of sodium bicarbonate, 1 part of potassium persulfate, 1 part of deionized water .

[0062] Preparation process: Add nano-titanium dioxide and deionized water into the dispersion cup, adjust the pH value of the solution to 8 with dilute NaOH, disperse with a high-speed disperser, then move it to the reactor, raise the temperature to 60°C, and dissolve the methyl Methyl acrylate, butyl acrylate, styrene, glycidyl methacrylate mixed monomer, and potassium persulfate initiator solution were added dropwise to the reactor within 4.5 hours. After the dropwise addition, continue to stir and react for 0.5 hours. After the reaction is complete, a blue-phase white Pickering emulsion is obtained, ...

Embodiment 3

[0068] (1) Preparation of epoxy-containing styrene acrylate copolymer Pickering emulsion stabilized by nano-titanium dioxide

[0069] Raw material ratio: by weight

[0070] 5 parts of nano titanium dioxide, 25 parts of methyl methacrylate, 25 parts of butyl methacrylate, 25 parts of styrene, 25 parts of glycidyl methacrylate, 5 parts of sodium bicarbonate, 5 parts of potassium persulfate, deionized water 5 servings.

[0071] Preparation process: Add nano-titanium dioxide and deionized water into the dispersion cup, adjust the pH value of the solution to 3 with dilute HCl, disperse with a high-speed disperser, then move to the reactor, raise the temperature to 85°C, and dissolve the methyl Methyl acrylate, butyl methacrylate, glycidyl methacrylate, styrene mixed monomer, and potassium persulfate initiator solution were added dropwise to the reactor within 4 hours. After the dropwise addition, continue to stir and react. After the reaction is complete, the blue-phase white Pic...

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Abstract

The invention discloses an NT-BMPkE with bacteria resistance. Amphiphilic nanometer titanium dioxide solid particles are taken as a stabilizing agent, an acrylic ester, styrene and GMA (glycidyl methacrylate) monomer is taken as an oil phase, deionized water is taken as a solvent, and sulfate is taken as a neutralizing agent, so that a copolymer is formed through induced polymerization; and after tests, the NT-BMPkE has higher hygroscopicity and bacteria resistance, excellent film-forming property and good heat stability. An indoor debug antibacterial coating produced by taking the NT-BMPkE as a film-forming matter has a better antibacterial effect and can be applied to places such as hospital wards, operating rooms, household toilets and the like where bacteria are dense and easy to breed, and effects such as air purification, infection prevention, deodorization, odor removal and the like can be realized; besides, no organic solvent precipitates in the process, so that the NT-BMPkE is non-toxic, odorless, safe, reliable, and is an environment-friendly antibacterial coating.

Description

technical field [0001] The invention belongs to the technical field of macromolecules, and relates to the preparation and method of an epoxy-containing styrene acrylate copolymer Pickering emulsion stabilized by nano-titanium dioxide; The application of Pickering emulsion as a film former in the preparation of indoor humidity-adjusting antibacterial coatings. Background technique [0002] Coating is an important building material that people often come into contact with in daily life. With the society's pursuit of a green environment, the green and environmental protection of coatings has become inevitable, and antibacterial coatings have emerged as the times require. The bactericidal paint contains a bactericide with strong bactericidal effect. The bactericide will organically combine with various components in the paint, so it can effectively sterilize for a long time. Moreover, the paint will not endanger human health. Simultaneously, the bactericidal paint is easy to u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F220/14C08F220/18C08F220/32C09D125/14C09D5/14
Inventor 王荣民吴战民王晓雯何玉凤
Owner NORTHWEST NORMAL UNIVERSITY
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