Antibacterial carved stone ceramic tile and preparation method thereof

Abstract

The invention relates to an antibacterial carved stone ceramic tile and a preparation method thereof, and belongs to the technical field of ceramic tile processing and manufacturing. The antibacterialcarved stone ceramic tile is prepared from kaolin, ball clay, potassium feldspar, porcelain clay, pyrophyllite, coating glaze, a composite photocatalytic antibacterial agent and bentonite through steps of: ball-milling pulping, forming, one-time sintering, ink jetting, glazing with addition of a composite photocatalytic antibacterial agent, secondary sintering, and polishing and trimming. A TiO2/Ag2O composite microsphere photocatalytic antibacterial agent which is prepared through high-temperature calcination by utilizing a sol-gel method is added, wherein the photogenerated holes and electrons generated by TiO2 and Ag2O can be mutually migrated, so that the recombination rate of the photogenerated holes and the electrons is reduced, the photocatalytic activity is improved, and the photocatalyst has the advantages of large specific surface area, high photocatalytic reaction activity, high antibacterial efficiency and the like, and can stably play an antibacterial role for a long time. A good air purification effect is achieved, and substances such as TVOC in air can be effectively removed. The method is simple in process, convenient to operate and suitable for large-scale production.

Description

technical field [0001] The invention belongs to the technical field of tile processing and manufacturing, and in particular relates to an antibacterial carved stone tile and a preparation method thereof. Background technique [0002] With the improvement of living standards, people pay more and more attention to the hygienic environment, and the demand for antibacterial function is further extended to the living environment. As an indispensable product in people's living environment, architectural ceramic materials have attracted much attention for their antibacterial function. Among ceramic antibacterial products, bathrooms account for the vast majority, and there are relatively many studies in this area. As people pay more attention to the hygiene of the living environment, the research results of antibacterial materials in the field of ceramic tiles are also increasing. Therefore, improving the antibacterial performance of ceramic tiles has become the key to this technic...

AI Technical Summary

Problems solved by technology

For example, Chinese patent CN 109293338A discloses a kind of negative ion antibacterial ceramic tile and its production process. The antibacterial ceramic tile includes an embryo body, a bottom glaze and a top glaze. Fiber cloth, bottom glaze and surface glaze all include clay, feldspar, quartz, nano-silver, nano-titanium dioxide, etc. The use of nano-silver and nano-titanium dioxide stimulates the antibacterial function with the help of moisture and air in the pores of the embryo body, but the antibacterial tile The antibacterial function is still difficult to maintain for a long time

At present, the biggest disadvantage of the anatase TiO2 material of the photocatalyst is that it is easy to fail at around 850°C.

In addition, the low-temperature heat treatment antibacterial layer has weak bonding force with the glaze surface, and the antibacterial layer is easy to fall off in practical application, and the antibacterial durability is poor

[0006] In summary, the current antibacterial ceramic tiles have problems such as unstable antibacterial performance, easy to fall off the antibacterial layer, and difficult to last. The fired antibacterial ceramic products have cracks and roughness due to the mismatch of mechanical and thermodynamic properties. Therefore, it is urgent to develop a Stable antibacterial carved stone tiles

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