Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of preparation method of antibacterial ceramic

A technology of antibacterial ceramics and water glass solution, which is applied in the field of new ceramic materials, can solve the problems of easy oxidation and discoloration of antibacterial metal ions, harsh environment for antibacterial action, and low utilization rate of antibacterial agents, so as to protect product quality or human health, ceramics as a whole Excellent texture and strong anti-destructive effect

Active Publication Date: 2017-10-27
KUNMING UNIV OF SCI & TECH
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the low utilization rate, poor stability and short duration of the antibacterial agent in the preparation of the above antibacterial ceramics; and the antibacterial property is single, easy to produce drug resistance, and the environment for antibacterial action is harsh; It is easy to oxidize, discolor and pollute the color of the glaze surface. A preparation method for antibacterial ceramics is provided. The glaze formula and glazing method are optimized and improved. The antibacterial ceramics produced use the sol-gel method to attach antibacterial ions to white carbon black. The antibacterial powder material is obtained on the carrier, mixed with ordinary glaze, and wet ball milled to obtain a composite antibacterial glaze slurry; then the "double-layer glazing method" is used to evenly pour the ordinary glaze on the outer wall of the green body or the green body. Layer and spray the outer layer of composite antibacterial glaze slurry, and finally bake at high temperature to form the required antibacterial ceramics

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: the preparation method of this silver-based antibacterial ceramic is as follows:

[0028] (1) Assemble the constant temperature stirring reaction device, preheat the hot water glass solution and the baking soda solution to 90°C respectively, measure the two reactants with a volume ratio of 1:1.3 and place them in the reaction vessel at 90°C at 500°C rpm stirring and mixing for 15 min, wherein the concentration of water glass solution is 10wt%, and the concentration of sodium bicarbonate solution is 5wt%;

[0029](2) Take the water glass solution and the baking soda solution with a volume ratio of 1:1.3 and preheat them to 90°C, and then pour the preheated water glass solution and baking soda solution into the water at a stirring rate of 150rpm. In the reaction solution of step (1), place the mixture at 90°C for 20 minutes, adjust the pH to 2 with nitric acid, and finally add 0.001 mol / L silver nitrate solution to react for 1 hour to obtain a gel-like react...

Embodiment 2

[0041] Embodiment 2: the preparation method of this silver-based antibacterial ceramic is as follows:

[0042] (1) Preheat the hot water glass solution and the baking soda solution to 85°C respectively, measure the two reactants with a volume ratio of 1:1.5, place them in a reaction vessel at 85°C, and stir and mix at 400 rpm for 25 minutes. The solution concentration is 5 wt%, and the baking soda solution concentration is 15 wt%;

[0043] (2) Take the water glass solution and the baking soda solution with a volume ratio of 1:1.5 and preheat them to 90°C, and then pour the preheated water glass solution and baking soda solution into the water at a stirring rate of 200rpm. In the reaction solution of step (1), place the mixture at 85°C for 25 minutes, adjust the pH to 2 with nitric acid, and finally add 0.005 mol / L silver nitrate solution to react for 1.5 hours to obtain a gel-like reactant. After cooling, The gel-like reactant was vacuum filtered, and then the filtered produc...

Embodiment 3

[0052] Embodiment 3: the preparation method of this zinc series antibacterial ceramics is as follows:

[0053] (1) Preheat the hot water glass solution and the baking soda solution to 85°C respectively, measure the two reactants with a volume ratio of 1:1.25, place them in a reaction vessel at 85°C, and stir and mix at 450 rpm for 15 minutes. The water glass solution concentration is 20wt%, and the baking soda solution concentration is 5wt%;

[0054] (2) Take the water glass solution and the baking soda solution with a volume ratio of 1:1.25 and preheat them to 85°C respectively, and then pour the preheated water glass solution and baking soda solution in succession at a stirring rate of 150 rpm. In the reaction solution of step (1), place the mixture at 85°C for 25 minutes, adjust the pH to 6 with nitric acid, and finally add 0.6 mol / L zinc sulfate solution to react for 2 hours to obtain a gel-like reactant. The final gel-like reactant was vacuum filtered, and then the filte...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a novel antibacterial ceramic. The method optimizes and improves a glaze formula and a glazing method, so that durable and durable ceramics with high antibacterial properties can be obtained under the conventional ceramic production methods and preparation conditions. The salient features of this method: the antibacterial ions are attached to the white carbon black carrier by the sol-gel method to obtain the antibacterial powder material, which is mixed with ordinary glaze and wet ball milled to obtain a composite antibacterial glaze slurry; "Glazing method", the inner layer of ordinary glaze and the outer layer of spraying composite antibacterial glaze slurry are evenly poured on the outer wall of the green body or the green body, and finally the required antibacterial ceramics are baked at high temperature. The advantages of this method: the product not only has antibacterial broad-spectrum, high bactericidal rate, no drug resistance, and is environmentally friendly and healthy; and the antibacterial metal ion baking process has less loss, high ion activity, and high utilization rate; the antibacterial glaze layer has good adsorption, It has little effect on the ceramic body, and the overall texture of the ceramic is excellent, strong in damage resistance, and the glaze surface is smooth and wear-resistant. In general, the cost is controllable, the cost performance is extremely high, and it is conducive to the large-scale quantitative production in the future market.

Description

technical field [0001] The invention discloses a method for making a novel antibacterial ceramic, in particular relates to an improved glaze method for efficiently utilizing antibacterial metal ions by using white carbon black as a carrier, and belongs to the technical field of novel ceramic materials. Background technique [0002] With the rapid development of society, the living environment of human beings is facing more and more hazards. The threats from various harmful bacteria and viruses have made human survival and health problems increasingly severe. Living in a space filled with a large number of microorganisms, the antibacterial and antiviral functions of production and living materials have attracted more and more attention from the society. For this reason, people's demand for antibacterial functional materials is getting higher and higher, and ceramics are widely used in people's daily life, so antibacterial ceramics as a new type of functional materials have be...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/89
Inventor 张彬郭一婧唐晓宁李欢胡艳玲
Owner KUNMING UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com