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Antibacterial environment-friendly domestic ceramic and preparation method thereof

A ceramic and daily-use technology, applied in the field of antibacterial and environmental protection daily-use ceramics and its preparation, can solve the problems of easy loss of antibacterial active components, decline in antibacterial performance and failure, and achieve good bactericidal effect, enhanced bactericidal effect, and destruction of metabolism.

Inactive Publication Date: 2020-12-29
陈彩霞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defects and deficiencies that the antibacterial active components are easy to lose during the use process of the existing antibacterial ceramics, causing the gradual decline in antibacterial performance and failure, and provide an antibacterial and environmentally friendly daily-use ceramics and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Pretreatment of graphene oxide:

[0044] Mix graphene oxide and nano-iron powder in a mass ratio of 60:1 and pour them into a ball mill jar, and add 0.3% of the mass of graphene oxide in sodium fluoride; then add ball milling beads at a mass ratio of 30:1, and then Under the condition that the rotating speed is 400r / min, ball milling is carried out for 36h, and the material is discharged to obtain the ball grinding material, which is the pretreated graphene oxide;

[0045] Synthesis of graphene oxide-monodisperse nanosilica composites:

[0046] In parts by weight, successively take 8 parts of pretreated graphene oxide, 50 parts of tetraethyl orthosilicate, 200 parts of absolute ethanol, 8 parts of stearic acid, and 2 parts of emulsifier; after mixing, at a frequency of 50kHz , ultrasonically dispersed for 30 minutes, and after the dispersion was completed, heated and refluxed for 4 hours, discharged, filtered, and dried to obtain a compound;

[0047] Ceramic firing: ...

Embodiment 2

[0052] Pretreatment of graphene oxide:

[0053] Mix graphene oxide and nano-iron powder in a mass ratio of 80:1 and pour them into a ball mill jar, and add 0.4% of the mass of graphene oxide in sodium fluoride; then add ball milling beads at a mass ratio of 40:1, and then Under the condition that the rotating speed is 500r / min, ball milling is carried out for 52 hours, and the material is discharged to obtain the ball grinding material, which is the pretreated graphene oxide;

[0054] Synthesis of graphene oxide-monodisperse nanosilica composites:

[0055] In parts by weight, successively take 9 parts of pretreated graphene oxide, 80 parts of tetraethyl orthosilicate, 250 parts of absolute ethanol, 9 parts of stearic acid, and 3 parts of emulsifier; after mixing, under the condition of 60kHz frequency , ultrasonically dispersed for 50 minutes, after the dispersion was completed, heated to reflux for 5 hours, discharged, filtered, and dried to obtain a compound;

[0056] Cera...

Embodiment 3

[0061] Pretreatment of graphene oxide:

[0062] Mix graphene oxide and nano-iron powder in a mass ratio of 100:1 and pour them into a ball mill jar, and add 0.5% of the mass of graphene oxide in sodium fluoride; then add ball milling beads at a mass ratio of 50:1, and then Under the condition of the rotating speed of 600r / min, ball milling for 72 hours, discharging, and obtaining the ball grinding material, which is the pretreated graphene oxide;

[0063] Synthesis of graphene oxide-monodisperse nanosilica composites:

[0064] In parts by weight, successively take 10 parts of pretreated graphene oxide, 100 parts of tetraethyl orthosilicate, 300 parts of absolute ethanol, 10 parts of stearic acid, and 3 parts of emulsifier; after mixing, under the condition of a frequency of 70kHz , ultrasonically dispersed for 60 minutes, after the dispersion was completed, heated to reflux for 8 hours, discharged, filtered, and dried to obtain a compound;

[0065] Ceramic firing:

[0066] ...

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PUM

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Abstract

The invention belongs to the field of inorganic non-metallic materials, and particularly relates to antibacterial environment-friendly domestic ceramic and a preparation method thereof. The product developed by the invention comprises a three-layer composite structure, which is composed of a surface layer, a middle layer and a ceramic base layer, wherein the surface layer is of a continuous wave structure, and is silicon dioxide, the middle layer comprises a graphene-silicon carbide composite layer, and is connected with the surface layer through a Si-C chemical bond, the ceramic base layer isan aluminum oxide ceramic base layer, further comprises cobalt oxide and titanium dioxide, and is made of an aluminum oxide ceramic, the aluminum oxide ceramic further comprises cobalt oxide and titanium dioxide, the middle layer further comprises nanometer iron powder accounting for 1-3% of the mass of the graphene, and the silicon carbide is silicon carbide whisker. The product obtained by theinvention has an excellent antibacterial effect and good effect persistence.

Description

technical field [0001] The invention belongs to the technical field of inorganic non-metallic materials. More specifically, it relates to an antibacterial and environment-friendly daily-use ceramic and a preparation method thereof. Background technique [0002] Antibacterial ceramics is an environmentally friendly functional material. It is the product of the combination of antibacterial materials and ceramic products. Antibacterial ceramics increase the functions of antibacterial, disinfection and chemical degradation on the basis of retaining the physical and chemical properties of original ceramic products. At present, antibacterial ceramics are mainly divided into two types: metal ion doped antibacterial ceramics and photocatalytic antibacterial ceramics. Among them, metal ion-doped antibacterial ceramics are directly fired by adding antibacterial agents containing silver, zinc, copper and other metal ions directly into the ceramic glaze; photocatalytic antibacterial ce...

Claims

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Application Information

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IPC IPC(8): C04B35/10C04B35/622C04B41/89
CPCC04B35/10C04B35/622C04B41/89C04B41/52C04B2235/3418C04B2235/3232C04B2235/3275C04B2235/36C04B2235/425C04B2235/6562C04B2235/6567C04B41/5059C04B41/5001C04B41/5035
Inventor 陈彩霞
Owner 陈彩霞