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Porous ceramic and preparation method thereof

A technology for porous ceramics and powder, which is applied in the field of porous ceramics and its preparation, achieves the effects of wide source of raw materials, simple process and improved heat utilization efficiency

Inactive Publication Date: 2021-03-05
上海魅湃实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the above disadvantages and provide a porous ceramic with the characteristics of high through-hole porosity, good pore distribution uniformity, high strength and uniform density distribution, and will not cause powder dropping, embrittlement and cracking during use. problems such as deformation; in addition, the present invention also provides a preparation method of porous ceramics

Method used

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  • Porous ceramic and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A porous ceramic consisting of solid mixed powder and organic slurry, the mass ratio of solid mixed powder to organic slurry is 72:10;

[0031] The solid mixed powder includes raw materials of the following weight: 40g of alumina powder, 6g of plant ash, 6g of flour, and 20g of low-temperature glass glaze powder;

[0032] The organic slurry includes the following raw materials by weight: polypropylene glycol 1 g, polyethylene glycol 5 g.

[0033] Wherein, the flour in this embodiment is commercially available common edible flour.

[0034] Wherein, the mesh number of the alumina powder in this embodiment is 180 mesh.

[0035] Wherein, the molecular weight of the polypropylene glycol in the present embodiment is 2000.

[0036] Wherein, the polyethylene glycol in the present embodiment is 1 g of polyethylene glycol with a molecular weight of 600, 1 g of polyethylene glycol with a molecular weight of 1000, 1 g of polyethylene glycol with a molecular weight of 2000, and 1 ...

Embodiment 2

[0044] A porous ceramic consisting of solid mixed powder and organic slurry, the mass ratio of solid mixed powder to organic slurry is 76:8.1;

[0045] The solid mixed powder includes the following raw materials in weight: 40g of alumina powder, 6g of plant ash, 10g of flour, and 20g of low-temperature glass glaze powder;

[0046] The organic slurry includes the following raw materials by weight: 3 g of polypropylene glycol, 5.1 g of polyethylene glycol.

[0047] Wherein, the flour in this embodiment is commercially available common edible flour.

[0048] Wherein, the mesh number of the alumina powder in this embodiment is 180 mesh.

[0049] Wherein, the molecular weight of the polypropylene glycol in the present embodiment is 1000.

[0050] Wherein, the polyethylene glycol in the present embodiment is 1 g of polyethylene glycol with a molecular weight of 600, 1 g of polyethylene glycol with a molecular weight of 1000, 1 g of polyethylene glycol with a molecular weight of 20...

Embodiment 3

[0058] A porous ceramic consisting of solid mixed powder and organic slurry, the mass ratio of solid mixed powder to organic slurry is 81:8.6;

[0059] The solid mixed powder includes the following raw materials in weight: 40g of alumina powder, 6g of plant ash, 15g of flour, and 20g of low-temperature glass glaze powder;

[0060] The organic slurry includes the following raw materials by weight: polypropylene glycol 3g, polyethylene glycol 5.6g.

[0061] Wherein, the flour in this embodiment is commercially available common edible flour.

[0062] Wherein, the mesh number of the alumina powder in this embodiment is 180 mesh.

[0063] Wherein, the molecular weight of the polypropylene glycol in the present embodiment is 2000.

[0064] Wherein, the polyethylene glycol in the present embodiment is 1.1 g of polyethylene glycol with a molecular weight of 600, 1.2 g of polyethylene glycol with a molecular weight of 1000, 1.2 g of polyethylene glycol with a molecular weight of 2000...

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Abstract

The invention discloses a porous ceramic and a preparation method thereof. The porous ceramic is composed of solid mixed powder and organic slurry, and the mass ratio of the solid mixed powder to theorganic slurry is 100:(10-20); the solid mixed powder comprises the following raw materials in parts by weight: 40-60 parts of alumina powder, 5-15 parts of plant ash, 5-15 parts of flour and 20-30 parts of low-temperature glass glaze powder; and the organic slurry comprises the following raw materials in parts by weight: 1-4 parts of polypropylene glycol and 1-16 parts of polyethylene glycol. Theporous ceramic provided by the invention has the characteristics of high through hole porosity, stable porosity, good pore distribution uniformity, high strength and uniform density distribution, anddoes not generate the problems of powder falling, embrittlement, deformation and the like in the use process. The preparation method of the porous ceramic is simple in process, high in repeatability,wide in raw material source, low in raw material and equipment cost and suitable for industrial production, and has an excellent industrial application prospect.

Description

technical field [0001] The invention relates to the technical field of ceramic materials, in particular to a porous ceramic and a preparation method thereof. Background technique [0002] Porous ceramics is a ceramic material with a network structure of interconnected or closed pores. Due to its unique porous structure, porous ceramic materials have small bulk density, high specific surface area, and low thermal conductivity. At the same time, they also have the characteristics of high temperature resistance, high strength, and good chemical stability unique to ceramic materials. They are widely used in filtration and separation. , dispersion, penetration, heat insulation, heat transfer, sound absorption, sound insulation, adsorption carrier, reaction sensing and biological tissue engineering and other fields. The existing porous ceramics still have unresolved problems in meeting the requirements of high through-hole porosity, high strength, and uniform distribution of pore...

Claims

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Application Information

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IPC IPC(8): C04B35/10C04B35/622C04B38/06
CPCC04B35/10C04B35/622C04B38/067C04B2235/36C04B2235/5436C04B2235/602C04B2235/656C04B2235/6562C04B2235/6567C04B2235/77
Inventor 李宏书
Owner 上海魅湃实业有限公司
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