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Preparation method of high-durability nano composite antibacterial paint

A nano-composite and durable technology, applied in the field of paint, can solve the problems of low durability, achieve strong ultraviolet absorption, improve durability and aging resistance, and have high surface activity

Inactive Publication Date: 2021-03-26
时嘉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problem to be solved by the present invention: Aiming at the problem that commonly used antibacterial agents are organic antibacterial agents with low durability, a preparation method of high-durability nanocomposite antibacterial paint is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In parts by weight, weigh 60 parts of linseed oil, 30 parts of oxalic acid, 3 parts of potassium hydroxide, 12 parts of phthalic anhydride, 18 parts of styrene, 6 parts of trimellitic anhydride, 3 parts of vinyl triethoxy Base silane, 3 parts of ethylene glycol butyl ether, 120 parts of deionized water, add glycerol to linseed oil, pass nitrogen protection at a rate of 120mL / min, and rotate at 160r / min under the condition of an oil bath at 180°C Stir and mix for 10 minutes to obtain an alcohol-oil mixture, add potassium hydroxide to the alcohol-oil mixture, and stir at a speed of 200 r / min in an oil bath at 220°C for 1 hour to obtain an alkaline mixture. Add phthalic anhydride, Styrene was added to the alkaline mixed liquid, and stirred and reacted at 240r / min in an oil bath at 220°C for 2 hours to obtain a reaction liquid. Add trimellitic anhydride and vinyltriethoxysilane to the reaction liquid, Stir at 240r / min for 1h under bath conditions to obtain a mixed reaction ...

Embodiment 2

[0038] In parts by weight, weigh 70 parts of linseed oil, 35 parts of oxalic acid, 3.5 parts of potassium hydroxide, 14 parts of phthalic anhydride, 21 parts of styrene, 7 parts of trimellitic anhydride, 3.5 parts of vinyl triethoxy Base silane, 3.5 parts of ethylene glycol butyl ether, 140 parts of deionized water, add oxalic acid into linseed oil, pass nitrogen protection at a rate of 140mL / min, and rotate at 180r / min under the condition of an oil bath at 190°C Stir and mix for 15 minutes to obtain an alcohol-oil mixture, add potassium hydroxide to the alcohol-oil mixture, and stir for 1.5 hours at a speed of 220 r / min in an oil bath at 230°C to obtain an alkaline mixture, and add phthalic anhydride , Styrene was added to the alkaline mixed solution, stirred and reacted at 260r / min in an oil bath at 230°C for 3 hours to obtain a reaction solution, and trimellitic anhydride and vinyltriethoxysilane were added to the reaction solution, and heated at 175°C Stir at 260r / min for ...

Embodiment 3

[0042] In parts by weight, weigh 80 parts of linseed oil, 40 parts of oxalic acid, 4 parts of potassium hydroxide, 16 parts of phthalic anhydride, 24 parts of styrene, 8 parts of trimellitic anhydride, 4 parts of vinyl triethoxy Base silane, 4 parts of ethylene glycol butyl ether, 160 parts of deionized water, add oxalic acid into linseed oil, pass through nitrogen protection at a rate of 160mL / min, and rotate at 200r / min under the condition of an oil bath at 200°C Stir and mix for 20 minutes to obtain an alcohol-oil mixture, add potassium hydroxide to the alcohol-oil mixture, and stir for 2 hours in an oil bath at 240°C at a speed of 240r / min to obtain an alkaline mixture. Add phthalic anhydride, Styrene was added to the alkaline mixed solution, and stirred and reacted at 280r / min in an oil bath at 240°C for 4 hours to obtain a reaction solution. Add trimellitic anhydride and vinyltriethoxysilane to the reaction solution, Under bath conditions, stir at 280r / min for 2h to obta...

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PUM

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Abstract

The invention relates to a preparation method of high-durability nano composite antibacterial paint, and belongs to the technical field of paint. The high-durability nano composite antibacterial paintis prepared by adding a modified nano titanium dioxide sol, and the nano titanium dioxide sol has the advantages of photocatalysis, strong ultraviolet absorption capacity, large surface activity, large specific surface area, easiness in preparation, good thermal conductivity and the like; nano titanium dioxide can oxidize and reduce substances such as water and part of organic matters in air under the action of ultraviolet excitation, so that the paint has good antibacterial and mildew-proof effects, and nano titanium dioxide sol also has very high chemical stability, good heat resistance, relatively high surface activity and the like; the photocatalytic effect of the nano titanium dioxide sol is based on decomposition of organic matters, and the organic matters are oxidized and decomposed into carbon dioxide, water and the like, so that the durability of the paint can be effectively improved.

Description

technical field [0001] The invention relates to a preparation method of a high-durability nano-composite antibacterial paint, which belongs to the technical field of paint. Background technique [0002] Due to the development of industry, the increase of population and the aggravation of environmental pollution, harmful germs are ubiquitous and hard to prevent. Pathogenic microorganisms have become one of the main killers of human health. In order to provide humans with a better and safer living environment, developing paints with antibacterial functions has become one of the important topics in the field of scientific research today. [0003] Most of the antibacterial agents used in ordinary antibacterial paints are organic antibacterial agents. Organic antibacterial agents have high toxicity, low safety, easy dissolution, and poor durability. In addition, they cannot withstand thousands of repeated washings. application requirements. There are many kinds of organic antib...

Claims

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Application Information

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IPC IPC(8): C09D167/08C09D5/14C09D7/62
CPCC08K2003/2241C08K2201/005C08K2201/011C08L2201/08C09D5/14C09D167/08C09D7/62C09D7/68C08L1/286C08L1/28C08K9/06C08K3/22C08K5/5425
Inventor 时嘉
Owner 时嘉
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