Method for manufacturing nano TO silver-carried antibacterial membrane

A technology of silver-loaded antibacterial and manufacturing methods, which is applied to the device for coating liquid on the surface, pretreatment surface, coating, etc., can solve the problem of easy discoloration, and achieve the effect of low consumption and cost reduction

Inactive Publication Date: 2005-10-05
湖南泰鑫瓷业有限公司
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AI Technical Summary

Problems solved by technology

However, due to the strong photosensitive reaction ability of silver salt, it is easy to change color when exposed to light or stored for a long time, which brings a lot of trouble to the addition and use of silver salt, especially when adding it to titanium sol.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] 1. Press Ag + / TiO 2 =3~6% of the proportion of silver nitrate, first dissolve the silver nitrate with a trace amount of water, then add oleic acid and acetone and fully stir for half an hour to obtain the silver solution. Note that the volume ratio of oleic acid and acetone used is 1:1, and the used The total amount is 20 ml. If the amount of oleic acid is insufficient, the solution stabilization time will be short; if the amount of oleic acid is too much, the transparency of the film will be poor. Add the prepared silver solution to the titanium sol solution and stir for half an hour to obtain the silver sol. After coating the product with the sol, dry it at 100-120°C for 1 hour, and then calcinate at 500-550°C for 2 hours. can.

[0009] 2. First coat the product in a titanium sol and then dry it at 80-120°C for 20 minutes, and then lift the coating in a silver solution. The silver solution contains Ag + The amount is TiO 2 Weigh the silver nitrate according to this ratio...

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PUM

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Abstract

The present invention relates to production method of nano TiO2 silve-carried antibacterial film. First method includes the following steps: adding prepared silver solution into titanium sol to obtain silve-carried sol, then film-coating product with said sol; and second method includes the following steps: firstly, film-coating product in titanium sol, drying, then film-coating said product in silver solution. The said silver solution is made up by adopting the following steps: firstly, dissolving proper quantity of silver nitrate in micro-water, then adding proper quantity of oleic acid and acetone, fully stirring them so as to obtain the silver solution. It has high antibacterial property, the bacteria-killing rate for killing colibacillus and staphylococcus can be up to above 90%.

Description

Technical field [0001] The present invention relates to nano TiO 2 Manufacturing method of silver-loaded antibacterial film. Background technique [0002] Among all metal ions, Ag + It is one of the varieties with the smallest minimum inhibitory concentration value, plus it is colorless and non-toxic, which is very suitable for the preparation of antibacterial agents. However, because silver salt has strong photosensitivity, it is easy to change color when exposed to light or long-term storage, which brings a lot of trouble to the addition and use of silver salt, especially when it is added to titanium sol. Summary of the invention [0003] The purpose of the present invention is to adopt a protective coating modification method to allow silver ions to absorb a protective layer and avoid direct light irradiation, so that nano-TiO 2 The manufacture of silver-loaded antibacterial film becomes possible. [0004] Nano TiO 2 The manufacturing method of silver-loaded antibacterial fil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/18B05D3/00B05D5/00
Inventor 潘俊明
Owner 湖南泰鑫瓷业有限公司
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