A kind of preparation method of ceramic antibacterial film

A thin film and ceramic technology, which is applied in the field of preparation of antibacterial ceramic thin films, can solve the problems of affecting antibacterial persistence, excessive silver ion release, and reduced silver ion migration ability, etc., to achieve increased action time, high antibacterial rate, and simple preparation process Effect

Active Publication Date: 2018-12-18
福建省德化县继裕陶瓷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: aiming at the problem that the existing silver-based antibacterial ceramic film needs to be fired at high temperature, which easily causes the silver ion to decompose and discolor and affect the appearance of the ceramic product, and the release of silver ion is too fast, which affects its antibacterial durability. Provides a method for compounding copper-silver particles, enhancing the strength of copper-silver composite particles through polylactic acid compounding, reducing the migration ability of silver ions by compounding copper-silver, preventing it from being released too quickly, and enhancing its durability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] First, according to the mass ratio of 1:5, the nano-copper powder was stirred and mixed with the 10% lactic acid solution by mass, and the pH was adjusted to 8.5 with 5% ammonia solution by mass, and left to age for 3 hours, and then suction filtered and the filter cake was collected. Wash with deionized water until the pH of the washing solution reaches 7.0, and then activate at 110°C for 1 hour to prepare activated modified copper powder; in parts by weight, weigh 25 parts of glucose, 45 parts of deionized water, and 5 parts of Polyvinyl alcohol, 15 parts by mass fraction of 5% silver nitrate solution and 10 parts of the above-mentioned activated modified copper powder were placed in a beaker, and the pH was adjusted to 8.5 with a mass fraction of 10% ammonia solution, and after standing for 6 hours, suction filtered and collected. Cake, washed with deionized water until the pH of the washing solution reaches 7.0, and then dried at 110°C for 6 hours to prepare composit...

example 2

[0018] First, according to the mass ratio of 1:5, the nano-copper powder was stirred and mixed with the 10% lactic acid solution by mass, and the pH was adjusted to 8.5 with 5% ammonia solution by mass, left to age for 4 hours, and then suction filtered and the filter cake was collected. Wash with deionized water until the pH of the washing solution reaches 7.0, and then activate at 118°C for 2 hours to prepare activated modified copper powder; in parts by weight, weigh 27 parts of glucose, 47 parts of deionized water, and 8 parts of Polyvinyl alcohol, 17 parts by mass fraction of 5% silver nitrate solution and 12 parts of the above-mentioned activated modified copper powder were placed in a beaker, and the pH was adjusted to 8.5 with a mass fraction of 10% ammonia solution, and after standing for 7 hours, suction filtered and collected. Cake, washed with deionized water until the pH of the washing solution reaches 7.0, and then dried at 115°C for 7 hours to prepare composite c...

example 3

[0020] First, according to the mass ratio of 1:5, the nano-copper powder was stirred and mixed with the 10% lactic acid solution by mass, and the pH was adjusted to 8.5 with 5% ammonia solution by mass, left to age for 4 hours, and then suction filtered and the filter cake was collected. Wash with deionized water until the pH of the washing solution reaches 7.0, and then activate at 115°C for 2 hours to prepare activated modified copper powder; in parts by weight, weigh 30 parts of glucose, 50 parts of deionized water, and 10 parts of Put polyvinyl alcohol, 20 parts by mass fraction of 5% silver nitrate solution and 15 parts of the above-mentioned activated modified copper powder in a beaker, adjust the pH to 8.5 with a mass fraction of 10% ammonia solution, let stand for 8 hours and then suction filter and collect the filtered water. The cake was washed with deionized water until the pH of the washing solution reached 7.0, and then dried at 120°C for 8 hours to prepare composi...

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Abstract

The invention relates to a preparation method of an antibacterial ceramic thin film and belongs to the technical field of preparation of the antibacterial ceramic thin film. Aiming at the problems that silver ions are heated to be decomposed and discolored easily and then appearance of a ceramic product is influenced due to need of high-temperature firing of an existing silver antibacterial ceramic thin film as well as the antibacterial endurance of the silver antibacterial ceramic thin film is affected by fast release of the silver ions, the antibacterial ceramic thin film is provided and is characterized in that copper and silver ions are composited, the strength of the copper and silver composite particles is enhanced through composition with polylactic acid, and by means of composition of copper and silver, the silver ion migration capacity is reduced, the silver ions are prevented from being released too fast, and the action endurance of the antibacterial ceramic thin film is enhanced. The action time of the antibacterial ceramic thin film prepared with the method is prolonged by 15%-20%, the antibacterial ratio is as high as 85%, and besides, the preparation process is simple, green, environment-friendly and pollution-free.

Description

technical field [0001] The invention relates to a method for preparing a ceramic antibacterial film, which belongs to the technical field of antibacterial ceramic film preparation. Background technique [0002] my country is a world-famous ancient country of ceramics, which has created a splendid ceramic civilization. In the long history, ceramics have experienced the transformation from the most primitive practicality, practicality and aesthetics, to the current practicality + artistry + health, and its efficacy has undergone a qualitative leap. Especially in the past ten years, with the improvement of people's living standards in our country, people have begun to take high-quality life as the goal of pursuit, and pay more attention to the cleanliness and sanitation of the environment closely related to their own health. However, the various sanitary ware toilets, bathtubs, porcelain basins, ceramic tiles and building walls that people come into contact with on a daily bas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/81
CPCC04B41/4539C04B41/81C04B41/5105C04B41/46
Inventor 阮炜蒋玉芳
Owner 福建省德化县继裕陶瓷有限公司
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