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A kind of colorless transparent antibacterial glass and preparation method thereof

A kind of antibacterial glass, glass technology, applied in cleaning methods and utensils, chemical instruments and methods, cleaning methods using liquids, etc., can solve the problems of glass discoloration, reduce glass antibacterial performance, etc., to avoid easy oxidation, excellent transparency, high The effect of chemical stability

Active Publication Date: 2022-05-27
同曦集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the free silver ions have been oxidized in the high-temperature molten state, thereby discoloring the glass and seriously reducing the antibacterial performance of the glass.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The present embodiment provides a kind of preparation method of colorless transparent antibacterial glass, and described preparation method comprises the following steps:

[0041] (1) Use 5wt% sodium hydroxide solution, absolute ethanol, and deionized water to ultrasonically clean the glass for 10 minutes in sequence, and then dry it at 105° C. for later use;

[0042] (2) Potassium nitrate and silver-loaded hydroxyapatite are mixed and then melted at 380° C. to obtain mixed molten salt. In terms of 100 parts of mixed molten salt, potassium nitrate accounts for 90 parts, and silver-loaded hydroxyapatite accounts for 10 parts. share;

[0043] (3) Preheat the glass dried in step (I) to 350°C for 30 minutes; immerse the preheated glass in the mixed molten salt obtained in step (II) for 10 minutes, and introduce silver ions into the glass through ion exchange Inside, the described colorless transparent antibacterial glass is obtained after cooling.

[0044] The antibacteri...

Embodiment 2

[0046] The present embodiment provides a kind of preparation method of colorless transparent antibacterial glass, and described preparation method comprises the following steps:

[0047] (1) Use 6wt% sodium hydroxide solution, absolute ethanol, and deionized water to ultrasonically clean the glass for 14 minutes in sequence, and place it in 105°C for drying after cleaning;

[0048] (2) Potassium nitrate and silver-loaded zirconium phosphate are mixed and molten salt is mixed at 402° C. to obtain mixed molten salt. In terms of 100 parts of mixed molten salt, potassium nitrate accounts for 92 parts, and silver-loaded zirconium phosphate accounts for 8 parts;

[0049] (3) Preheat the glass dried in step (I) to 368°C for 42 minutes; immerse the preheated glass in the mixed molten salt obtained in step (II) for 20 minutes, and introduce silver ions into the glass through ion exchange Inside, the described colorless transparent antibacterial glass is obtained after cooling.

[0050...

Embodiment 3

[0052] The present embodiment provides a kind of preparation method of colorless transparent antibacterial glass, and described preparation method comprises the following steps:

[0053] (1) Use 7wt% sodium hydroxide solution, absolute ethanol and deionized water to ultrasonically clean the glass for 18 minutes in sequence, and place it in 105°C for drying after cleaning;

[0054] (2) Potassium nitrate and silver-loaded calcium phosphate are mixed and molten salt is mixed at 414° C. to obtain mixed molten salt. In terms of 100 parts of mixed molten salt, potassium nitrate accounts for 94 parts, and silver-loaded calcium phosphate accounts for 6 parts;

[0055] (3) Preheat the glass dried in step (I) to 386°C for 54 minutes; immerse the preheated glass in the mixed molten salt obtained in step (II) for 30 minutes, and introduce silver ions into the glass through ion exchange Inside, the described colorless transparent antibacterial glass is obtained after cooling.

[0056] The...

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Abstract

The invention discloses a colorless transparent antibacterial glass and a preparation method thereof. The preparation method comprises: immersing the preheated glass in a mixed molten salt containing potassium nitrate and a silver-loaded antibacterial agent, and introducing silver ions into the glass by ion exchange. Inside the glass, the colorless transparent antibacterial glass is obtained after cooling. In the present invention, the silver-loaded antibacterial agent is used to replace the silver nitrate component in the previous high-temperature molten salt ion exchange method. In the process of preparing colorless and transparent antibacterial glass by using the molten salt ion exchange method, the silver-loaded antibacterial agent can slowly release silver ions and combine with Sodium ions in the glass are ion-exchanged, thereby effectively avoiding the shortcoming that the antibacterial component silver ions are easily oxidized in the traditional method.

Description

technical field [0001] The invention belongs to the technical field of glass preparation, and relates to a colorless transparent antibacterial glass and a preparation method thereof. Background technique [0002] With the rapid development of domestic science and technology and the continuous improvement of people's living standards, people are paying more and more attention to environmental sanitation conditions. In people's daily life, glass is one of the most widely used materials, such as glass shower rooms, various touch screens in public places, private mobile phones, tablets, etc. all use glass products. However, during the long-term use of glass, the sweat stains, scratches and warm and humid environment left on the glass surface provide favorable conditions for the growth of bacteria and viruses, which have a serious impact on human health and quality of life. Therefore, processing ordinary glass into antibacterial glass can inhibit the growth of bacteria and virus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C21/00B08B3/12B08B11/04
CPCC03C21/005B08B3/12B08B11/04
Inventor 陈广川于红光陈忠涛
Owner 同曦集团有限公司
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