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 limited application range, poor heat resistance of organic antibacterial agents, etc. Good thermal properties, the effect of improving the continuous antibacterial ability

Active Publication Date: 2016-08-10
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

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Comparison scheme
Effect test

preparation example Construction

[0019] The invention provides a preparation method of an antibacterial coating for household appliances, comprising the following steps: step a) heating white carbon black to a gas phase state, and then mixing it with nano-silver nitrate, nano-nickel carbonate, nano-zinc oxide and nano-lithium carbonate to obtain Nano white carbon black antibacterial powder; step b) at 80-95°C, adding the nano white carbon black antibacterial powder, carbon black and titanium dioxide into the silicone rubber, stirring, and then adding a silane coupling agent and a curing agent to obtain an antibacterial liquid; step c) coarsening the substrate, irradiating it under ultraviolet light for 10-30 minutes for the first time, then immersing it in the antibacterial solution for 10-50 minutes, drying it and placing it in a muffle furnace at 100-150 ° C Calcining for 2-6 hours, cooling, and irradiating with ultraviolet light for 10-30 minutes again to obtain an antibacterial coating for household applia...

Embodiment 1

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

[0032] (1) First, the surface pretreatment of the substrate: the stress of the substrate is removed by knocking method; then the surface of the substrate is wiped with 0.1M HCl solution to degrease the substrate;

[0033](2) Roughen the base material: after manual grinding, use 0.5M potassium dichromate-sulfuric acid solution to smear the surface of the base material, and then clean it with water;

[0034] (3) Activation of the substrate: activate the substrate by irradiating with ultraviolet light for 30 minutes;

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

Embodiment 2

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

[0040] (1) First, the surface pretreatment of the substrate: the stress of the substrate is removed by knocking method; then the surface of the substrate is wiped with 0.1M HCl solution to degrease the substrate;

[0041] (2) Roughen the base material: after manual grinding, use 0.5M potassium dichromate-sulfuric acid solution to smear the surface of the base material, and then clean it with water;

[0042] (3) Activation of the substrate: activate the substrate by irradiating with ultraviolet light for 30 minutes;

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

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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 preparation method of 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 human beings. People's research and understanding of environmental microorganisms are constantly improving. While utilizing the beneficial properties of microorganisms, they are also aware of their harmfulness as pathogenic bacteria, which promotes the development of antibacterial functional materials, resulting in the emergence of various antibacterial products. developed rapidly. [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 materials are new functional metal materials successfully ...

Claims

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Application Information

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Patent Type & Authority Applications(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
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