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High-performance high-temperature ceramic film material and preparation method thereof

A high-temperature ceramic, high-performance technology, applied in the field of ceramic materials and inorganic non-metallic materials, can solve the problems that hinder the toughness, high porosity and easy fracture of high-density ceramic membrane materials, and achieve poor toughness, high porosity, high The effect of permeability

Inactive Publication Date: 2016-10-12
SHANDONG RES & DESIGN ACADEMY OF IND CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a high-performance high-temperature ceramic membrane material, which has more Good mechanical strength and toughness solve the technical problems of poor toughness and easy fracture that currently hinder the popularization and application of high-density ceramic membrane materials; the invention also provides its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] (1) Preparation of the inner support body layer:

[0048] (1) Use approximately spherical silicon carbide aggregate with uniform particle size distribution, with a particle size of 400-500 microns, add 5% high-temperature binder, 10% walnut powder (particle size 200-300 microns), and the high-temperature binder It consists of the following raw materials in mass percentage: 70% of Suzhou soil, 15% of calcite and 15% of burnt talc. The above raw materials are mixed evenly with a high-speed mixer, so that the high-temperature binder is evenly coated around the aggregate particles.

[0049] (2) Use short polycrystalline mullite fibers (fiber length 1-3mm), add 5% of the above-mentioned high-temperature binder, and mix evenly, so that the high-temperature binder is uniformly coated on the surface of the fiber.

[0050] (3) Mix the raw materials in (1) and (2) evenly in a certain proportion, wherein the fiber accounts for 5% of the total mass of the fiber and the refractory ...

Embodiment 2

[0060] (1) Preparation of the inner support body layer:

[0061] (1) Use a nearly spherical silicon carbide aggregate with uniform particle size distribution, with a particle size of 200-400 microns, add 15wt% high-temperature binder, 5wt% walnut powder (particle size 300-400 microns), of which the high-temperature binder It is composed of the following raw materials in mass percentage: 85% of Suzhou soil and 15% of calcite. The above raw materials are mixed evenly with a high-speed mixer, so that the high-temperature binder is evenly coated around the aggregate particles.

[0062] (2) Using polycrystalline mullite short fibers (fiber length 1-3mm), add 15wt% of the above-mentioned high-temperature binder, mix evenly, so that the high-temperature binder is evenly coated on the surface of the fiber.

[0063] (3) Mix the raw materials in (1) and (2) evenly in a certain proportion, wherein the fiber accounts for 20% of the total mass of the fiber and the refractory aggregate. A...

Embodiment 3

[0073] (1) Preparation of the inner support body layer:

[0074] (1) Use mullite aggregate with uniform particle size distribution and approximately spherical shape, the particle size is 200-300 microns, add 30wt% high-temperature binder, 3wt% walnut powder (particle size 200-300 microns), wherein high-temperature bonding The agent is composed of the following raw materials in mass percentage: Datong soil 95%, potassium feldspar 5%. The above raw materials are mixed evenly with a high-speed mixer, so that the high-temperature binder is evenly coated around the aggregate particles.

[0075] (2) Use polycrystalline mullite short fibers (fiber length 1-3mm), add 30% of the above-mentioned high-temperature binder, and mix evenly, so that the high-temperature binder is uniformly coated on the surface of the fiber.

[0076] (3) Mix the raw materials in (1) and (2) evenly in a certain proportion, wherein the fiber accounts for 40% of the total mass of the fiber and the refractory ag...

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Abstract

The invention belongs to the field of ceramic materials in the field of inorganic non-metallic materials, and in particular relates to a high-performance high-temperature ceramic membrane material and a preparation method thereof. It is made of an inner support layer and an outer film layer, both of which are composite structures of refractory ceramic aggregate and polycrystalline mullite short fiber. The present invention has better mechanical strength and toughness while ensuring the high permeability, low resistance, high porosity and high thermal stability of the high-density ceramic membrane material, and solves the problems of poor toughness and poor toughness that currently hinder the promotion and application of high-density ceramic membrane materials The technical problem of being easy to break; the invention also provides its preparation method.

Description

technical field [0001] The invention belongs to the field of ceramic materials in the field of inorganic non-metallic materials, and in particular relates to a high-performance high-temperature ceramic membrane material and a preparation method thereof. Background technique [0002] Compared with traditional cyclone dust removal, bag dust removal, electric dust removal and other methods, ceramic membrane filtration dust removal technology has the advantages of high operating temperature, wide application range, wear resistance, strong chemical corrosion resistance, and high filtration accuracy. It has shown great advantages in high temperature and high pressure gas purification. However, high-temperature ceramic membrane materials, the core part of ceramic membrane filtration and dust removal technology, usually have disadvantages such as poor toughness, poor high-temperature thermal stability, and brittle fracture, which greatly restricts the popularization and application ...

Claims

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Application Information

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IPC IPC(8): C04B35/565C04B35/80C04B38/06C04B41/87B01D67/00B01D69/10B01D71/02
CPCC04B38/0675B01D67/0041B01D69/10B01D71/02C04B35/565C04B35/806C04B41/009C04B41/5031C04B41/87C04B2201/50C04B2235/3208C04B2235/349C04B2235/5427C04B38/0041C04B41/4596
Inventor 张晓丽薛友祥张久美李伶宋涛张燕
Owner SHANDONG RES & DESIGN ACADEMY OF IND CERAMICS
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