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A kind of preparation method of antibacterial coating for household appliances

A technology for antibacterial coatings and home appliances, applied in coatings, biocide-containing paints, antifouling/underwater coatings, etc., can solve the problems of poor heat resistance and limited application range of organic antibacterial agents, and achieve good heat resistance , Low toxicity, and the effect of improving the sustained antibacterial ability

Active Publication Date: 2017-12-22
中山市国辉五金实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the heat resistance of organic antimicrobial agents is poor, so the scope of application of antimicrobial metal materials with organic antimicrobial agent coatings is severely limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0019] The invention provides a method for preparing an antibacterial coating for household appliances, including the following steps: step a) heating white carbon to a gas phase state, and then mixing with nano silver nitrate, nano nickel carbonate, nano zinc oxide and nano lithium carbonate to obtain Nano-silica antibacterial powder; step b) at 80-95°C, add the nano-silica antibacterial powder, carbon black and titanium dioxide to the silicone rubber, stir, and then add silane coupling agent and curing agent to obtain antibacterial Liquid; step c) the substrate is roughened, irradiated for 10-30min under ultraviolet light for the first time, then immersed in the antibacterial liquid for 10-50min, dried and placed in a muffle furnace at 100-150℃ It is calcined for 2-6 hours, cooled, and irradiated again under ultraviolet light for 10-30 minutes to obtain an antibacterial coating for household appliances.

[0020] In the present invention, silver nitrate, nickel carbonate, zinc o...

Embodiment 1

[0031] A preparation method of antibacterial coating for household appliances, including the following steps:

[0032] (1) First, pretreat the surface of the substrate: use the percussion method to remove the stress of the substrate; then use a 0.1M HCl solution to wipe the surface of the substrate to degrease the substrate;

[0033] (2) Coarse the substrate: After manual polishing, coat the surface of the substrate with a 0.5M potassium dichromate-sulfuric acid solution, and then clean it with water;

[0034] (3) Substrate activation: use ultraviolet light for 30min to activate the substrate;

[0035] (4) Configure the antibacterial liquid: heat the white carbon black to a gas phase state, then pulverize the silver nitrate, nickel carbonate, zinc oxide, and lithium carbonate to nanometer level, then heat the two up and down countercurrently to mix, and cool to obtain nano white Carbon black antibacterial powder, wherein, in weight fraction, white carbon black is 95%, silver nitrate i...

Embodiment 2

[0039] A preparation method of antibacterial coating for household appliances, including the following steps:

[0040] (1) First, pretreat the surface of the substrate: use the percussion method to remove the stress of the substrate; then use a 0.1M HCl solution to wipe the surface of the substrate to degrease the substrate;

[0041] (2) Coarse the substrate: After manual polishing, coat the surface of the substrate with 0.5M potassium dichromate-sulfuric acid solution, and then clean it with water;

[0042] (3) Substrate activation: use ultraviolet light for 30min to activate the substrate;

[0043] (4) Configure the antibacterial liquid: heat the white carbon black to a gas phase state, then pulverize the silver nitrate, nickel carbonate, zinc oxide, and lithium carbonate to nanometer level, then heat the two up and down countercurrently to mix, and cool to obtain nano white Carbon black antibacterial powder, wherein, in weight fraction, white carbon black is 90%, silver nitrate is ...

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PUM

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Abstract

The invention provides a preparation method of an antibacterial coating for household appliances .According to the preparation method, the antibacterial effect and the continuous antibacterial capacity of the coating are improved through the antibacterial efficacy of silver, and the adhesive force of the coating is improved by taking white carbon black as a carrier and taking silicone rubber as a substrate, wherein nano-white carbon black antibacterial powder is prepared from silver nitrate, nickel carbonate, zinc oxide and lithium carbonate to generate the synergistic effect, and therefore the antibacterial property of the coating is better; antibacterial liquid is prepared by taking carbon black and titanium dioxide as raw materials, active substances such as .OH and O2 are generated on the surface of titanium dioxide and have the high oxidation effect to enable bacteria to be decomposed, and then the sterilizing effect is achieved; the substrate of the coating can generate the bacterial adhesion resisting effect through ultraviolet irradiation .Therefore, the prepared antibacterial coating for the household appliances has the advantages of being high in antibacterial efficiency, low in toxicity and good in heat resistance.

Description

Technical field [0001] The invention relates to the technical field of chemical coatings, in particular to a method for preparing an antibacterial coating for household appliances. Background technique [0002] With the development of society, a healthy living environment has increasingly become the goal pursued by mankind. People's research and understanding of environmental microbes have been continuously improved. While using the benefits of microbes, they are also aware of their harmfulness as pathogens. This has promoted the development of antibacterial functional materials and led to the emergence of various antibacterial products. Obtained rapid development. [0003] At present, antibacterial materials such as antibacterial plastics, antibacterial fibers, antibacterial ceramics, antibacterial steel and antibacterial coatings have been used in various fields. Antibacterial coating material is a new type of functional metal material successfully developed in the 20th century...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/04C09D5/14C09D7/12
CPCC08K3/04C08K2201/011C09D5/14C09D7/61C09D183/04
Inventor 魏亮
Owner 中山市国辉五金实业有限公司