Red coloring agent for low-temperature colored glass, and preparation method and use method thereof

Abstract

The invention belongs to the field of colored glass, and particularly relates to a red coloring agent for low-temperature colored glass, and a preparation method and a use method thereof. The red coloring agent is prepared from the following raw materials in parts by mass: 30 to 50 parts of a quartz powder, 10 to 30 parts of borax, 10 to 25 parts of sodium carbonate and 2 to 30 parts of a coloringadditive, by the steps of mixing the materials, founding at high temperature, performing water quenching and pulverizing, wherein the coloring additive is one of or a mixture of more than one of selenium powder, cuprous oxide and ferric oxide. A large amount of low-melting-point silicon oxide, borax and sodium carbonate are adopted in the coloring agent base material, so that the dispersing speedof the coloring agent in 1200-DEG C glass liquid is greatly enhanced and uniformly colored glass original liquid is formed. In the preparation process of the coloring agent, the composite powder is directly added into a high-temperature frit furnace to perform founding and the reaction temperature is increased from a room temperature to 1350 to 1500 DEG C instantaneously, so that decomposition, volatilization and composition segregation of the materials in the slow heating process are avoided, and a coloring agent product with high stoichiometric ratio and high high-temperature dispersion speed is obtained.

Description

technical field [0001] The invention belongs to the field of colored glass, and in particular relates to a red colorant for low-temperature colored glass and a preparation method and application method thereof. Background technique [0002] Colored glass refers to glass that can absorb, reflect, and pass through light of different wavelengths to present different colors. Color glass has blue, brown, gray, green, gold and other colors, and has many functions, such as effectively absorbing the sun's radiant heat, producing "cold room effect", achieving the effect of heat shielding and energy saving; Become soft and avoid glare; can effectively absorb the sun's ultraviolet rays, prevent indoor items from fading, deterioration, etc. [0003] At present, the color glass preparation process is to directly add the glass colorant to the glass melting furnace at about 1600 ℃. The temperature of the furnace is high, so that the colorant components can be completely melted, fully and ...

AI Technical Summary

Problems solved by technology

However, the above methods all have problems such as unstable color development, low diffusion rate, and heavy metal element pollution. It is of great significance to develop new low-temperature red glass colorants.