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Method for preparing core-shell structured high temperature red ceramic pigment by in-situ synthesis

A core-shell structure and ceramic pigment technology is applied in the field of in-situ synthesis of core-shell structure high-temperature red ceramic pigments, which can solve problems such as unsatisfactory color rendering and easy erosion of ceramic pigments by glass melt.

Inactive Publication Date: 2011-11-23
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at high temperature, Ce 1-x PR x o 2 Ceramic pigments are easily eroded by glass melt, resulting in unsatisfactory coloration, which hinders Ce 1-x PR x o 2 Bottlenecks in the development of ceramic pigments

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Take Triton X-100 and C respectively according to the mass ratio of 2:1:5:2 5 h 12 O, C 6 h 12 and H 2 O, mix and stir evenly to obtain a transparent microemulsion system, respectively take Ce(NO 3 ) 3 ·6H 2 O aqueous solution, Pr(NO at a concentration of 1mol / L 3 ) 3 ·6H 2O aqueous solution and the prepared microemulsion system, the Ce(NO 3 ) 3 ·6H 2 O aqueous solution and Pr(NO 3 ) 3 ·6H 2 O aqueous solution is added in the microemulsion system that obtains, and the molar ratio of control Ce and Pr is 0.99: 0.01, and the total water content of two kinds of aqueous solutions accounts for 5% of the total mass of microemulsion system taken, fully stirs, makes microemulsion A; Take NH respectively 3 ·H 2 O and microemulsion systems, the NH 3 ·H 2 O is added to the microemulsion system to control the NH 3 ·H 2 The water content in O accounts for 5% of the total mass of the microemulsion system taken, and it is fully stirred to obtain microemulsion B; un...

Embodiment 2

[0024] Triton X-100, C 5 h 12 O, C 6 h 12 and H 2 O, mix and stir evenly to prepare a transparent microemulsion system, respectively take Ce(NO 3 ) 3 ·6H 2 O aqueous solution, Pr(NO at a concentration of 1mol / L 3 ) 3 ·6H 2 O aqueous solution and the prepared microemulsion system, the Ce(NO 3 ) 3 ·6H 2 O aqueous solution Pr(NO 3 ) 3 ·6H 2 O aqueous solution and add in the microemulsion system that obtains, control the mol ratio of Ce and Pr to be 0.95: 0.05, the total water content of these two kinds of aqueous solutions accounts for 10% of the microemulsion system gross mass of taking, fully stir, make microemulsion A; take NH respectively 3 ·H 2 O and prepared microemulsion system, the NH 3 ·H 2 O is added to the obtained microemulsion system to control the NH 3 ·H 2 The water content in O accounts for 10% of the total mass of the microemulsion system taken, fully stirred to prepare microemulsion B; under stirring conditions, microemulsion A and microemuls...

Embodiment 3

[0026] Triton X-100, C 5 hi 2 O, C 6 h 12 and H 2 O, mix and stir evenly to prepare a transparent microemulsion system, respectively take Ce(NO 3 ) 3 ·6H 2 O aqueous solution, Pr(NO at a concentration of 1mol / L 3 ) 3 ·6H 2 O aqueous solution and the prepared microemulsion system, the Ce(NO 3 ) 3 ·6H 2 O aqueous solution and Pr(NO 3 ) 3 ·6H 2 O aqueous solution is added in the microemulsion system that obtains, and the molar ratio of control Ce and Pr is 0.85: 0.15, and the total water content of these two kinds of aqueous solutions accounts for 20% of the microemulsion system gross mass of taking, fully stirs, makes microemulsion A ; take NH respectively 3 ·H 2 O and the prepared microemulsion system, the NH 3 ·H 2 O is added to the obtained microemulsion system to control the NH 3 ·H 2 The water content in O accounts for 20% of the total mass of the microemulsion system taken, and it is fully stirred to obtain microemulsion B; under stirring conditions, mi...

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PUM

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Abstract

The invention discloses a method for preparing high-temperature red ceramic pigment with a core-shell structure through in-situ synthesis, which wraps a SiO2 wrapping layer outside a Ce1-xPrxO2 chromogenic unit and comprises the following steps: mixing TritonX-100, C5H12O, C6H12 and H2O according to a mass ratio of 2-3:1-2:5-7:2-3 to obtain a microemulsion system; adding an aqueous solution of Ce(NO3)3.6H2O and an aqueous solution of Pr(No3)3.6H2O into the microemulsion system to obtain a microemulsion A; adding NH3.H2O into the microemulsion system to obtain a microemulsion system B; mixing the microemulsion system A and the microemulsion system B and adding TEOS into the mixture for hydraulic emulsion breaking for generation of precipitate; and washing, centrifugally separating, drying, calcining, cooling and grinding the precipitate to obtain the Ce1-xPrxO2SiO2 high temperature red ceramic pigment with the core-shell structure. The method for preparing high-temperature red ceramic pigment with the core-shell structure through in-situ synthesis can improve the high-temperature glass melt corrosion resistance of the red ceramic pigment.

Description

technical field [0001] The invention belongs to the technical field of pigment preparation, and relates to a method for improving the high-temperature glass melt erosion resistance of pigments, in particular to an in-situ synthesis method for preparing high-temperature red ceramic pigments with a core-shell structure. Background technique [0002] As a basic decorative material, red ceramic pigment plays a very important role in the decoration of ceramic products, and its research and application has a history of thousands of years. It is usually divided into ordinary red pigments, sulfide red pigments, encapsulated red pigments, and new red pigments. Most of the traditional red pigments have unsatisfactory color rendering properties at high temperatures, and are currently used in red pigments in ceramics, such as: zirconium iron red and cadmium selenium red. Zirconium iron red is not bright enough in high temperature. Cadmium selenium red is a kind of toxic pigment, if th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/85
Inventor 朱振峰李军奇马建中刘辉何选盟钱强文
Owner SHAANXI UNIV OF SCI & TECH