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A kind of curved antibacterial glass and preparation method thereof

An antibacterial glass and curved surface technology, applied in glass manufacturing equipment, glass forming, glass reshaping, etc., can solve the problems of glass performance strength decline, shallow surface shape distortion, increased time and process flow, etc., to achieve production process time and process shortening, the effect of improving antibacterial activity

Active Publication Date: 2022-08-09
KORNERSTONE MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The antibacterial function of the existing curved glass needs to increase the antibacterial part of the process. If the antibacterial layer is formed by coating, it will not be able to achieve long-term antibacterial. At the same time, due to the curvature of the curved surface itself, it is also difficult to evenly coat the curved surface itself.
To increase the antibacterial property through the ion exchange process, it is to first heat-bend the glass and then perform one or more steps of ion exchange, which invisibly increases the time and process flow, and will cause the performance and strength of the glass to decrease due to multiple thermal strengthening, or The shallow surface morphology of the glass may be distorted during the ion exchange process, resulting in changes in the curvature of the glass surface

Method used

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  • A kind of curved antibacterial glass and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1 provides a curved surface antibacterial glass and a preparation method, and the specific steps are:

[0045] Deposition: Take the original glass piece, cut it by CNC in the early stage, grind and clean it, and evenly spray one side of the glass with the compound solution of copper nitrate and potassium nitrate. 2 The atomization pressure and the flow rate of 10mL / min were sprayed on the glass surface, and dried at room temperature; the glass sprayed surface was evenly sprayed with the prepared zinc nitrate and potassium nitrate compound solutions, wherein the mass concentration of zinc ions was 1%, and the spray gun was 1.2kg. / cm 2 The atomization pressure and the flow rate of 10mL / min were sprayed on the glass surface, and dried at room temperature; again, the glass sprayed surface was evenly sprayed with the prepared silver nitrate and potassium nitrate compound solutions, wherein the mass concentration of silver ions was 3%, and the spray gun was 1.2kg....

Embodiment 2

[0051] Embodiment 2 provides a preparation method of curved antibacterial glass, and the specific steps are:

[0052] Deposition: Take the original glass piece and go through CNC cutting in the early stage, edge grinding and cleaning, and evenly spray the prepared compound solution of copper nitrate and potassium nitrate on one side of the glass, wherein the mass concentration of copper ions is 2%, the spray gun is 1.2kg / cm 2 The atomization pressure and 10mL / min flow rate were sprayed on the glass surface, and dried at room temperature; the glass sprayed surface was uniformly sprayed with the prepared zinc nitrate and potassium nitrate compound solutions, wherein the mass concentration of zinc ions was 1.5%, and the spray gun was 1.2kg. / cm 2 The atomization pressure and the flow rate of 10mL / min were sprayed on the glass surface, and dried at room temperature; again, the glass sprayed surface was evenly sprayed with the prepared silver nitrate and potassium nitrate compound ...

Embodiment 3

[0057] Embodiment 3 provides a preparation method of curved antibacterial glass, the specific steps are:

[0058] Deposition: Take the original glass sheet, cut it by CNC in the early stage, grind and clean it, and spray the compound solution of copper nitrate and potassium nitrate on one side of the glass evenly. 2 The atomization pressure and 10mL / min flow rate were sprayed on the glass surface, and dried at room temperature; the glass sprayed surface was evenly sprayed with the prepared zinc nitrate and potassium nitrate compound solutions, wherein the mass concentration of zinc ions was 1%, and the spray gun was 1.2kg. / cm 2 The atomization pressure and 10mL / min flow rate were sprayed on the glass surface, and dried at room temperature; again, the glass sprayed surface was evenly sprayed with the prepared silver nitrate and potassium nitrate compound solutions, wherein the mass concentration of silver ions was 0.5%, and the spray gun was 1.2kg. / cm 2 The atomization pres...

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Abstract

The invention provides a curved antibacterial glass and a preparation method thereof, comprising the following steps: depositing: depositing two or more different antibacterial metal ions on the surface of a base glass in layers to form a laminated antibacterial coating; preheating: forming an antibacterial coating The glass of the first layer is preheated at T1 temperature; the first ion exchange: the preheated glass is subjected to the first ion exchange at the T2 temperature; the hot bending ion exchange: the glass subjected to the first ion exchange is subjected to pressure and heat bending at the T3 temperature. The second ion exchange is carried out; after annealing and cooling, the curved antibacterial glass is obtained. By setting a laminated antibacterial coating containing different antibacterial metal ions, a 2-step ion exchange process, and ion exchange during hot bending, the production process time and process of curved antibacterial glass are shortened. At the same time, most of the antibacterial metal ions entering the glass also stay in the superficial layer to achieve the effect of improving the antibacterial activity. The antibacterial activity R of the curved antibacterial glass is greater than 5 before the photoaging test, and greater than 2.9 after the photoaging test.

Description

technical field [0001] The invention relates to the field of curved antibacterial glass, in particular to a curved antibacterial glass and a preparation method thereof. Background technique [0002] In order to achieve more advanced design ideas and product differentiation, manufacturers of electronic products and equipment have launched curved smart wristbands, watches, mobile phones, tablets, and curved TVs, etc. There are more and more devices with large-size display screens, and it has become a popular trend in the design world. At present, 3D curved glass has become the standard configuration of high-end fashion mobile phones. With the launch of new models from more manufacturers, the trend of "curved" mobile phone covers will also intensify. The hot bending of glass is already a relatively mature technology in the glass industry. Adding antibacterial functions to mobile phone glass has also become a new research and development direction for manufacturers. Most of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C21/00C03B23/023C03B25/00C03C17/34C03C17/22
CPCC03C21/005C03C21/001C03B23/023C03B25/00C03C17/3494C03C17/22C03C17/006C03C2218/112C03C2217/70C03C2217/40
Inventor 谢祯瀛杨忠林罗云侠黄小杰张熊熊陈招娣洪立昕
Owner KORNERSTONE MATERIALS TECH