Environmentally-friendly low-transparency type absolute black alumina silicate glass

Abstract

The invention relates to lining plates of electronic display products and frame side protection and decorative glass materials, and in particular to environmentally-friendly low-transparency type absolute black alumina silicate glass. The environmentally-friendly low-transparency type absolute black alumina silicate glass is characterized by consisting of basic glass and a coloring agent; according to the 100 percent of weight percentage, the coloring agent is prepared from the following components in percentage by weight: 1-8 percent of MnO, 0-3.5 percent of Fe2O3, 0.2-0.8 percent of C0O, 0-3 percent of NiO and 0.2-2.5 percent of CuO; the basic glass is prepared from the components in percent by weight: 50-75 percent of SiO2, 5-16 percent of Al2O3, 5-15 percent of Na2O, 0-5 percent of K2O, 0.5-4 percent of MgO, 0.5-8 percent of CaO, 4-12 percent of TiO2 and 0.2-0.5 percent of CeO. The alumina silicate glass is high in decoration property, has basic chemical compositions which can be chemically intensified and processed, and can be used for promoting the chemical compositions to realize high mechanical strength, including compressive strength, bending strength, impact resistance, abrasion resistance and scratch resistance.

Description

technical field [0001] The invention relates to a glass material for protecting and decorating substrate plates and frame edges of electronic display products, which is a pure black high-alkali aluminosilicate glass system with environmental protection and low transmittance. The glass material has excellent mechanical properties and decorative properties, and can be used to replace engineering plastics in electronic display products or ordinary glass coated with black ink, in which electronic display products include plasma TVs, LCD TVs, LCD monitors, laptop LCD monitors, tablet computers , smartphones, PDAs, etc. Background technique [0002] With the development of modern electronic display technology, a large number of flat-panel electronic display products have emerged, including plasma TVs, LCD TVs, LCD monitors, LCD monitors for notebook computers, tablet computers, smart phones, PDA, PSP, information inquiry machines, media advertisements player etc. Generally, the ...

AI Technical Summary

Problems solved by technology

The black frame is for shading and decoration. It is necessary to print black glass ink on the back of the glass multiple times, and then bake or bake the ink to make it solidify on the glass surface, but the mechanical strength is not very strong. It needs to be handled with care, otherwise it will easily cause the ink to scratch and fall off, which will affect the appearance effect. In addition, the printing process of black ink is very complicated, and the printing process is polluting. In addition, the yield rate of the product is greatly restricted. Therefore, it is necessary to A product that combines decorative and mechanical strength with black glass instead of ink on the surface of transparent glass

[0005] If the environmental protection requirements of glass are not considered, the black color of ordinary soda-lime-silica glass is easy to achieve. Usually, iron oxide, chromium oxide, copper oxide, and nickel oxide are used together to form a black colorant for glass, but based on RoHS regulations are harmful to electronic products Cr 6+ Therefore, the black colorant of traditional soda lime silica glass cannot be popularized and applied

[0006] In addition, the application of V in the lithium aluminum silicon glass-ceramic system 2 o 5 The method of showing black after glass crystallization has been widely used on induction cooker panels, but V 2 o 5 It is also listed as a toxic and harmful oxide, so the black coloring principle cannot be applied and promoted

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