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Method for preparing zirconium silicate coated carbon nanosphere ceramic black pigment

A technology of nano-carbon spheres and black materials, applied in the direction of fibrous fillers, etc., can solve the problems of low wrapping rate, poor color rendering, grayish chroma, etc., and achieve high wrapping rate, dense wrapping layer, and pure hair color Effect

Active Publication Date: 2017-09-22
JINGDEZHEN CERAMIC INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the current zirconium silicate-wrapped carbon black material with low wrapping rate, poor color, and grayish chroma, and provide a method for preparing zirconium silicate-wrapped nano-carbon sphere ceramic black material

Method used

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  • Method for preparing zirconium silicate coated carbon nanosphere ceramic black pigment
  • Method for preparing zirconium silicate coated carbon nanosphere ceramic black pigment
  • Method for preparing zirconium silicate coated carbon nanosphere ceramic black pigment

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Dissolve 38g of glucose in 350ml of deionized water, stir evenly, pour the solution into a 400ml reaction kettle, then place it in an oven at 160°C for 10 hours, filter the reacted solution with ethanol and deionized water Wash three times to obtain carbon sphere particles, then disperse the carbon sphere particles in 1mol / L sodium hydroxide solution and stir at 38°C for 2.5h, then wash the pH value of the sodium hydroxide solution with deionized water to 7, and finally dry Obtain nano-carbon sphere powder; take 0.0733 g of the prepared nano-carbon sphere powder and add it to 14.66 g of ammonia water with a mass fraction of 20%, and disperse into a carbon sphere suspension by ultrasonication for 30 minutes. Weigh 0.744g ethyl orthosilicate and dissolve in 20ml ethanol and 20ml water, stir at room temperature for 1.5h, add 0.826g zirconyl nitrate and continue stirring at room temperature for 1h. The fully stirred silicon-zirconium mixed solution was added dropwise to the...

Embodiment 2

[0031] Dissolve 45g of starch in 350ml of deionized water, stir evenly, pour the solution into a 400ml reaction kettle, then place it in an oven at 180°C for 8 hours, filter the reacted solution with ethanol and deionized water Wash three times to obtain carbon sphere particles, then disperse the carbon sphere particles in 1mol / L sodium hydroxide solution and stir at 50°C for 4 hours, then wash the pH value of the sodium hydroxide solution with deionized water to 7, and finally dry to obtain Nano-carbon sphere powder; after drying, obtain nano-carbon sphere powder; take 0.0814 g of the prepared nano-carbon sphere powder and add it to 16.3 g of ammonia water with a mass fraction of 25%, and disperse it into a carbon sphere suspension by ultrasonication for 30 minutes. Weigh 0.625g ethyl orthosilicate and dissolve in 20ml ethanol and 20ml water, stir at room temperature for 3h, add 0.644g zirconium oxychloride and continue stirring at room temperature for 3h. The fully stirred s...

Embodiment 3

[0034] Dissolve 56g of fructose in 350ml of deionized water, stir evenly, pour the solution into a 400ml reaction kettle, then place it in an oven at 200°C for 6 hours, filter the reacted solution with ethanol and deionized water Wash three times to obtain carbon sphere particles, then disperse the carbon sphere particles in 1mol / L potassium hydroxide solution and stir at 65°C for 6 hours, then wash the pH value of the potassium hydroxide solution with deionized water to 7, and finally dry to obtain Nano-carbon sphere powder; obtain nano-carbon sphere powder after drying; take 0.9165 g of the prepared nano-carbon sphere powder and add it to 18.33 g of ammonia water with a mass fraction of 20%, and disperse it into a carbon sphere suspension by ultrasonication for 30 minutes. Weigh 0.833g ethyl orthosilicate and dissolve in 20ml ethanol and 20ml water, stir at room temperature for 6h, add 0.862g zirconium oxychloride and continue stirring at room temperature for 5h. The fully s...

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Abstract

The invention discloses a method for preparing a zirconium silicate coated carbon nanosphere ceramic black pigment. The method is characterized in that carbon nanospheres prepared from a biomass raw material by a hydrothermal method replace a traditional carbon source, the hydrophilicity is improved by use of rich oxygen-containing functional groups on the surfaces of the carbon nanospheres and the negative potential state, and the dispersity of the carbon source is enhanced; the thickness of wrappers of the carbon nanospheres and the electrostatic adsorption capability are adjusted and controlled to enable a zirconium silicate precursor to tightly wrap the carbon nanospheres; and under the action of a mineralizer, the ceramic black pigment in which zirconium silicate wraps the carbon nanospheres is prepared after high-temperature calcination. In the experiment process, through optimization and control of such conditions as the addition of glucose, the hydrothermal temperature, the hydrothermal time, the silicon-zirconium ratio, the stirring time of the precursor, type and consumption selection of the mineralizer and a firing system, the synthesized black pigment is pure in color, uniform in particle size and stable in performance, can be used in various high-temperature ceramic glazes, and has a high economical value.

Description

technical field [0001] The invention belongs to the technical field of ceramic pigments, and in particular relates to a preparation method of zirconium silicate-wrapped nano-carbon sphere ceramic black material. Background technique [0002] As an indispensable and important additive and colorant in the ceramic industry, ceramic pigment has a wide range of far-reaching applications. The color performance and physical and chemical properties of ceramic pigments directly affect the production quality of ceramic products. At present, ceramic pigments can be divided into low-temperature type and high-temperature type according to the use temperature. High-temperature pigments are used at a temperature above 1000°C, and have wider application prospects and better color rendering properties. However, among many ceramic pigments, the proportion of low-temperature pigments is much higher than that of high-temperature pigments. Therefore, it is of great significance to develop hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/00C03C8/00C03C1/04
CPCC03C1/04C03C8/00C09C1/0012
Inventor 汪长安陈仕乐魏红康田传进郎莹
Owner JINGDEZHEN CERAMIC INSTITUTE
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