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A method for preparing zirconium-based wrapped zirconium-iron red ceramic pigment by organic network method

A technology of ceramic pigment and organic network, which is applied in the field of preparation of inorganic ceramic powder and ceramic materials, to achieve the effects of high efficiency, good packaging of pigment, and simple production equipment

Inactive Publication Date: 2016-08-24
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is: in view of the shortcomings and deficiencies in the prior art, provide an organic network method for preparing zirconium-based encapsulation with wide sources of raw materials, simple operation process, low firing temperature, high encapsulation rate and high purity. Type zirconium iron red ceramic pigment method, and suitable for industrialized large-scale production

Method used

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  • A method for preparing zirconium-based wrapped zirconium-iron red ceramic pigment by organic network method
  • A method for preparing zirconium-based wrapped zirconium-iron red ceramic pigment by organic network method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. Preparation of organic network precursor:

[0036] According to the concentration of polyvinyl alcohol of 4%, polyvinyl alcohol and water are mixed, heated and stirred at about 80° C. for 2-3 hours, and then allowed to stand and cooled to room temperature to obtain an aqueous solution of polyvinyl alcohol.

[0037] 2.Zr 4+ Preparation of other inorganic / organic network gels:

[0038] Take 70ml of the above-prepared polyvinyl alcohol solution, add 30g of zirconium oxychloride according to the ratio and stir until it is completely dissolved; then add 5.02g of ferric nitrate nonahydrate and stir until dissolved; add 22.37g of silica sol, 1g of dispersant PEG400 and stir evenly ;Finally, add 10ml of glutaraldehyde and stir quickly until a gel is formed;

[0039] 3. Zr 4+ Other inorganic / organic network gel post-treatment:

[0040] After the above gel was left to stand for 3 hours, it was soaked in 25% ammonia water for 24 hours, washed with deionized water until neutra...

Embodiment 2

[0045] 1. Preparation of organic network precursor:

[0046] According to the concentration of polyvinyl alcohol of 4%, polyvinyl alcohol and water are mixed, heated and stirred at about 85° C. for 2-3 hours, and then allowed to stand and cooled to room temperature to obtain an aqueous solution of polyvinyl alcohol.

[0047] 2.Zr 4+ Preparation of other inorganic / organic network gels:

[0048] Take 60ml of the above-prepared polyvinyl alcohol solution, add 40g of zirconium oxychloride according to the proportion and stir until it is completely dissolved; then add 8.04g of ferric nitrate nonahydrate and stir until dissolved; then add 29.83g of silica sol, 1.5g of dispersant PEG400 Stir well; finally add 8ml of glutaraldehyde, stir quickly until a gel is formed;

[0049] 3. Zr 4+ Other inorganic / organic network gel post-treatment:

[0050] After the above gel was left to stand for 3 hours, it was soaked in ammonia water (mass percentage concentration 25%) for 24 hours, washe...

Embodiment 3

[0054] 1. Preparation of organic network precursor:

[0055] According to the polyvinyl alcohol concentration of 6%, the polyvinyl alcohol and water were mixed and heated and stirred at about 85° C. for 2-3 hours, and then stood to cool to room temperature.

[0056] 2.Zr 4+ Preparation of other inorganic / organic network gels:

[0057] Take 70ml of the above-prepared polyvinyl alcohol solution, add 30g of zirconium oxychloride according to the proportion and stir until it is completely dissolved; then add 7.52g of ferric nitrate nonahydrate and stir until dissolved; then add 22.37g of silica sol and 1g of PEG400 and stir evenly; Finally, add 10ml of glutaraldehyde and stir quickly until a gel is formed;

[0058] 3. Zr 4+ Other inorganic / organic network gel post-treatment:

[0059] After the above gel was left to stand for 3 hours, it was dried in an oven at 90°C and crushed into fine powder;

[0060] 4. Preparation of zirconium iron red ceramic pigment:

[0061] Calcining...

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Abstract

The invention discloses a method of preparing zirconium-based package type ceramic iron zircon pigment by virtue of an organic network process. The method comprises the following steps: enabling a three-dimensional network structure formed by organic polymerization reaction, an inorganic enclosure Zr<4+> ion, a nano SiO2 raw material as well as a coloring ion Fe<3+> to occupy a three-dimensional network microcell; and finally, performing thermal treatment to obtain the zirconium-based package type ceramic iron zircon pigment. The method disclosed by the invention has the characteristics of simple process operation, good package effect, low powder synthesis temperature and high purity, and is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to a method for preparing a zirconium-based wrapped zirconium-iron red ceramic pigment by an organic network method, and relates to the field of preparation of inorganic ceramic powder and ceramic materials. Background technique [0002] As we all know, inorganic red pigments have good color and coloring ability, but their high temperature stability is poor, and they are prone to reactions at high temperatures, which greatly changes the color or coloring, thus limiting the use of these pigments to a large extent. scope of use. α-Fe 2 o 3 As a red colorant, its coloration is very unstable, especially at high temperature. This is because at high temperature α-Fe 2 o 3 Oxidation-reduction reactions will occur, so that α-Fe 2 o 3 The red color weakens or even disappears. Therefore, it is necessary to improve the α-Fe 2 o 3 The high-temperature coloring performance, the common method is to use high melting point substances fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/85
Inventor 王浩熊圣安吴宇梅森杨娟
Owner WUHAN UNIV OF TECH
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