Photochromic lead and cadmium free low temperature frit and preparation method thereof

Abstract

The invention discloses a photochromic lead and cadmium free low temperature frit and a preparation method thereof. The preparation method comprises the steps of: A. material mixing: mixing and grinding 10-18% of quartz, 5-12% of feldspar, 15-25% of borax, 3-12% of carbonate, 20-35% of boric acid, 3-8% of spodumene, 1-4% of fluoride salt, and 0-5% of kaolin evenly, then adding 1-5% of an antibacterial compound and 1-10% of a photochromic compound, and grinding the substances uniformly to obtain a mixture; B. melting; and C. cooling molding. Compared with existing low temperature frits, the low temperature frit prepared by the method provided by the invention has the characteristics of scientific compounding, reasonable preparation and stable performance, no lead, cadmium or other extremely toxic substances, and through reasonable collocation with photochromic compounds and antibacterial composite materials, the frit has excellent antibacterial and photochromic properties, thus further broadening the application scope of the low temperature frit. The low temperature frit can be used as the raw material for preparation of rich building materials, like photochromic antibacterial mosaics, photochromic antibacterial microcrystal ceramic composite plates, photochromic antibacterial low-temperature ceramic inks and the like.

Description

technical field [0001] The invention relates to the technical field of ceramics, in particular to a photochromic lead-free cadmium low-temperature frit and a preparation method thereof. Background technique [0002] Bacteria and molds, as pathogenic bacteria, do great harm to humans, animals and plants, affect people's health and even endanger their lives, and bring about significant economic losses. Therefore, the research on antibacterial materials and their products has attracted more and more attention, and the demand for antibacterial products will constitute a huge market. [0003] Photochromism refers to photochromism caused by different light sources and color changes caused by physical phenomena such as reflection, refraction and interference. Photochromic materials are divided into organic photochromic materials and inorganic photochromic materials, among which there are few studies on inorganic photochromic materials, mainly including transition metal oxides, met...

AI Technical Summary

Problems solved by technology

However, in order to reduce the temperature of the traditional low-temperature frit, a large amount of chemical substances containing lead and cadmium are used. Although the effect of reducing the melting temperature can be achieved, the chemical substances of lead and cadmium are highly toxic.

At the same time, there are few reports about multifunctional low-temperature frits such as antibacterial and photochromic, and the existing technology still needs to be improved and developed.

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