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Preparation method for ceramic medium printing sizing agent

A technology for ceramic media and ceramic waste, applied in the field of printing paste, can solve the problems of poor wettability of powder and air bubbles, and achieve the effect of low cost of raw materials

Inactive Publication Date: 2018-12-07
吴亚琴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention: Aiming at the problem that the current ceramic medium printing paste using water-based solvent as the carrier tends to cause poor wettability to the powder and generate a large number of bubbles, a preparation method of the ceramic medium printing paste is proposed

Method used

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  • Preparation method for ceramic medium printing sizing agent

Examples

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Effect test

example 1

[0032] Take 20g of feldspar, 50g of quartz, 40g of clay and 10g of ceramic waste, crush and mix to obtain the material, preheat the muffle furnace to 300℃, put the material in the muffle furnace, heat up and burn, the heating rate is 20℃ / Min, heat up to 900℃, then keep this temperature and continue to burn for 2h to obtain the pre-burned material; continue to heat up the muffle furnace at a heating rate of 10℃ / min, heat up to 1250℃, heat preservation and burn for 1h to obtain the burnt material ; Close the muffle furnace to make the temperature of the muffle furnace drop. When the temperature of the muffle furnace drops to 800℃, turn on the muffle furnace again, control the cooling rate to 5℃ / min, and reduce the temperature to 400℃, close the muffle furnace, and at the same time Open the door of the muffle furnace and cool to room temperature naturally to obtain modified ceramics; take 100g of modified ceramics and 10g of glass powder to crush and grind to obtain ceramic powder...

example 2

[0034] Take 30g of feldspar, 75g of quartz, 60g of clay and 15g of ceramic waste, crush and mix to obtain materials, preheat the muffle furnace to 300°C, put the materials in the muffle furnace, heat up and burn at a rate of 20°C / Min, heat up to 900℃, then keep this temperature and continue to burn for 2h to obtain the pre-burned material; continue to heat up the muffle furnace at a heating rate of 10℃ / min, heat up to 1250℃, heat preservation and burn for 1h to obtain the burnt material ; Close the muffle furnace to make the temperature of the muffle furnace drop. When the temperature of the muffle furnace drops to 800℃, turn on the muffle furnace again, control the cooling rate to 5℃ / min, and reduce the temperature to 400℃, close the muffle furnace, and at the same time Open the door of the muffle furnace and cool to room temperature naturally to obtain modified ceramics; take 150g of modified ceramics and 15g of glass powder to crush and grind to obtain ceramic powder; take 1...

example 3

[0036] Take 40g of feldspar, 100g of quartz, 80g of clay and 20g of ceramic waste, crush and mix to obtain materials, preheat the muffle furnace to 300°C, put the materials in the muffle furnace, heat up and burn at a rate of 20°C / Min, heat up to 900℃, then keep this temperature and continue to burn for 2h to obtain the pre-burned material; continue to heat up the muffle furnace at a heating rate of 10℃ / min, heat up to 1250℃, heat preservation and burn for 1h to obtain the burnt material ; Close the muffle furnace to make the temperature of the muffle furnace drop. When the temperature of the muffle furnace drops to 800℃, turn on the muffle furnace again, control the cooling rate to 5℃ / min, and reduce the temperature to 400℃, close the muffle furnace, and at the same time Open the door of the muffle furnace and cool to room temperature naturally to obtain modified ceramics; take 200g of modified ceramics and 20g of glass powder to crush and grind to obtain ceramic powder; take ...

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Abstract

The invention relates to a preparation method for a ceramic medium printing sizing agent and belongs to the technical field of printing sizing agents. According to the invention, air bubbles with larger diameters are eliminated through slow mechanical stirring and then a de-foaming agent is used for replacing the bubble walls of the air bubbles, so that the air bubbles with small diameters in thesizing agent are merged into the air bubbles with larger diameters; the pressure in the air bubbles is increased in the manner of vacuumizing and then the air bubbles are separated from the sizing agent and are broken, so that the de-foaming effect can be achieved; when the liquid evaporation pressure is ignored, the interfacial energy of solid-liquid interface is equivalent to the interfacial energy of solid surface according to young's equation, and the wetting property between water and powder can be promoted in the manner of increasing the interfacial energy of ceramic powder surface, so that the purpose of reducing air bubbles can be achieved; in the cooling stage of the preparation process of modified ceramics, the interfacial energy of ceramics can be increased by increasing the cooling speed of the ceramics, so that the air bubbles can be reduced. The ceramic medium printing sizing agent prepared according to the invention has the characteristics of excellent wetting property and few air bubbles, the production equipment is common and the raw material cost is low.

Description

Technical field [0001] The invention relates to a method for preparing ceramic medium printing paste, and belongs to the technical field of printing pastes. Background technique [0002] The ceramic medium slurry is composed of three parts: an organic carrier, a functional phase (ceramic powder), and a low-melting glass phase (which acts as a bonding agent at high temperatures). The organic vehicle is used to disperse ceramic powder to form a paste composition, usually composed of a solvent, a thickening polymer and additives. [0003] Generally, the molding methods of ceramic materials include slurry molding, press molding (dry press molding, semi-dry press molding), plastic molding and other molding methods. Among them, slurry molding is a commonly used molding method for high-tech ceramic materials. Slurry molding is highly valued by material workers because of its advantages such as high density of blanks, small pores, narrow pore size distribution, and the ability to form ce...

Claims

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Application Information

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IPC IPC(8): C04B33/132C04B33/16C04B33/13C04B33/04C04B26/26
CPCC04B26/26C04B33/04C04B33/13C04B33/1324C04B33/16C04B2111/00482C04B2201/10C04B2235/3463C04B18/023C04B14/22C04B14/30C04B24/06C04B24/16C04B24/2652C04B24/26C04B14/062Y02P40/60
Inventor 吴亚琴周立史志新
Owner 吴亚琴
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