Bismuth-silicon-boron low-melting-point nano glass powder suspension for glass jet drawing and preparation method

Abstract

The invention belongs to the field of glass decoration, particularly belongs to the field of glass jet drawing, and particularly relates to bismuth-silicon-boron low-melting-point nano glass powder suspension for glass jet drawing and a preparation method. The bismuth-silicon-boron low-melting-point nano glass powder suspension for glass jet drawing and the preparation method are characterized in that solid-phase component raw materials comprise bismuth oxide, amorphous silica and boric acid or boric oxide, lithium nitrate, aluminum oxide and zirconium oxide; the preparation method comprises the steps that firstly, after bismuth oxide, amorphous silica, aluminum oxide and zirconium oxide are mixed to be uniform, high-energy ball milling is carried out, and preliminary mechanical alloying is achieved; then the powder obtained through ball milling, boric acid or boric oxide and lithium nitrate are mixed and subjected to ball milling, and then a solvent is added for wet grinding. According to the suspension, the solid phase grain size is at the submicron grade or nano grade, the starting temperature of the low-melting-point glass powder during mass melting ranges from 580 DEG C to 650 DEG C, a colorless glass state is achieved after the low-melting-point glass powder is sintered on glass, the binding force between the suspension and the glass is high, and the suspension has wide application prospects in the field of glass digital jet drawing and printing.

Description

technical field [0001] The invention belongs to the field of glass decoration, is especially suitable for the field of glass spray painting, and particularly relates to a suspension of bismuth-silicon-boron-based low-melting nano-glass powder for glass spray painting and a preparation method thereof. Background technique [0002] With the development of construction, automobile, decoration, furniture and other industries and the improvement of people's living environment requirements, people's demand for the beauty of glass products is also increasing. Glass decoration is following the fashion, personalization, artistic, The trend of small batch, multi-color, low-carbon and environmental protection is developing. There are many kinds of inks for glass decoration, which are mainly divided into low-temperature quick-drying type and high-temperature sintering type. The usage of low-temperature quick-drying glass ink is to apply the ink to the glass and bake it at 50℃~200℃. Gla...

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Problems solved by technology

Chinese patent CN104893410, U.S. patents U.S4892847, U.S5468695, U.S4554258, and U.S4892847 all disclose similar high-temperature smelting methods for preparing low-melting glass powders. 700°C glass powder, but this method requires a melting temperature above 1000°C to fully alloy the raw materials, which results in high energy consumption and high preparation costs

Moreover, the particle size of the prepared glass powder is coarse, generally above 2 μm, which is only suitable for traditional printing such as screen printing, not suitable for glass digital inkjet printing, which requires an ink particle size below 2 μm. Advanced glass printing technology, scope of application narrower

[0005] U.S. Patent U.S. 20120138215 discloses a method for preparing low-melting glass powder by using sol-gel method (sol-gel). This preparation method can prepare nano-scale glass powder, but this preparation method needs to use NH 4 Chemical reagents such as OH are easy to form a large amount of chemical waste, which is harmful to the environment, and this method also has high requirements for production equipment, and the production cost is relatively high

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