Tempered antibacterial glass and preparation method and application thereof

Abstract

The invention relates to the field of glass production and discloses tempered antibacterial glass and a preparation method and application thereof. The preparation method includes the steps of firstly, heating zinc nitrate and zinc carbonate until the zinc nitrate and the zinc carbonate melt to obtain first molten liquid, and performing first ion exchange on plain plate glass in the first molten liquid to obtain first cover plate glass; secondly, heating silver nitrate until the silver nitrate melts to obtain second molten liquid, and performing second ion exchange on the first cover plate glass obtained in the first step in the second molten liquid to obtain second cover plate glass; thirdly, heating potassium nitrate until the potassium nitrate melts to obtain third molten liquid, and performing third ion exchange on the second cover plate glass obtained in the second step in the third molten liquid to obtain the tempered antibacterial glass. The preparation method has the advantages that the prepared tempered antibacterial glass is good in tempering performance and antibacterial performance, and the problem of ion channel blocking during preparation can be avoided effectively.

Description

technical field [0001] The invention relates to the field of glass manufacturing, in particular to tempered antibacterial glass and its preparation method and application. Background technique [0002] With the widespread popularity of LCD TVs, tablet computers, and mobile phones, higher requirements are placed on the performance of tempered glass (cover glass). On the one hand, tempered glass is required to have high tempering performance, and the surface stress must be high enough to be resistant to falling and earthquakes to a certain extent. On the other hand, due to the presence of a large number of bacteria, fungi, algae, etc. in the environment during use, the tempered glass protective sheet has been in contact with human hands and facial skin for a long time, and some heat will be generated during use, which provides a source of support for the growth of bacteria. A good breeding ground, in addition, human skin produces sweat, which also provides a moist environment...

AI Technical Summary

Problems solved by technology

On the other hand, due to the presence of a large number of bacteria, fungi, algae, etc. in the environment during use, the tempered glass protective sheet has been in contact with human hands and facial skin for a long time, and some heat will be generated during use, which provides a source of support for the growth of bacteria. A good breeding ground, in addition, human skin produces sweat, which also provides a moist environment for bacteria to grow, so bacteria can easily grow and multiply on the surface of the touch screen, and with the metabolism of these microorganisms, chemical by-products will be produced to erode the touch screen , making it less sensitive

In addition, a certain amount of fungi will also affect the optical performance of the touch screen and reduce the light transmittance.

The touch screen is directly contacted by the operator, and different operators are prone to indirect contact directly. Such contact transmission has become a source of public bacteria. Therefore, the antibacterial performance of the touch screen has become an urgent problem to be solved.

[0003] CN106348622 discloses a preparation method of high-strength antibacterial glass. The glass has certain toughening properties and antibacterial properties, but its ion exchange channels are easily blocked, thereby affecting the quality of the glass

Moreover, the tempering performance and antibacterial performance of the prepared glass all need to be improved.

[0004] In summary, most of the existing tempered glass cannot have both excellent toughening performance and antibacterial performance

Even among the few technologies, the toughening performance and antibacterial performance of tempered glass have been improved, but the effect still needs to be improved, and in the preparation process, the ion exchange channels are easily blocked, resulting in a decline in glass quality

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