Preparation method of alumina foam ceramic

A technology of alumina ceramic powder and foam ceramics, which is applied to ceramic products, applications, household appliances, etc., can solve the problems of high production cost, poor product reliability, and long production cycle, so as to reduce manpower demand and labor volume, avoid Product defects, the effect of reducing the production process

Inactive Publication Date: 2014-05-14
JIANGSU WEISHI STRUCTURAL CERAMICS
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of low degree of automation, many processes, high production cost, poor product reliability and long production cycle in the current preparation process of ceramic foam filters, the present invention proposes an alumina filter with high degree of automation, stable product quality and short production cycle. Preparation method of foam ceramic filter

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] 1. Prepare a square foam ceramic sponge molding container, which is made of various common thermoplastic or thermosetting plastics, such as polypropylene. And make sure the inner surface is smooth.

[0017] 2. Evenly apply a release agent, such as butter, to the inner wall of the foam ceramic sponge forming container, and then place it in the foaming workshop.

[0018] 3. Preparation molding and curing process: at a temperature of about 15°C, 65kg of polyoxypropylene polyol (hydroxyl value 56) and modified polyester polyol (hydroxyl value 80, acid value Less than 1) Add 4kg of water, 2kg of cyclopentane, 0.15kg of A33 (33% solution of triethylenediamine), 0.05kgN,N-dimethylcyclohexylamine, 0.2kg stannous octoate and 0.2kg organosilicone are pre-mixed, and then 15kg nano-magnesium oxide and particle size of 0.1-1um Add 285kg of alumina ceramic powder into the premix and stir well, then add 53kg of toluene diisocyanate with a specification of 80 / 20 and stir to form a mi...

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PUM

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Abstract

The invention discloses a preparation method of alumina foam ceramic, and relates to the technical field of production of high-tech ceramic product foam ceramic. The preparation method comprises the steps of stirring polyether or polyester polyol with a catalyst, a surfactant and a foaming agent, adding nano magnesium oxide and alumina ceramic powder, uniformly stirring, adding a curing agent, completely and uniformly mixing, reacting and curing in a shaping container, implementing perforation treatment on a cured foam ceramic sponge, and sintering at high temperature to obtain the alumina foam ceramic. The preparation method disclosed by the invention, which directly forms a three-dimensional reticulated foam ceramic green body, can greatly reduce production process, guarantee uniform and consistent alumina foam ceramic structure prepared, greatly reduce manpower demand and manual labor, shorten production cycle, and can also improve stability of product performance.

Description

technical field [0001] The invention relates to the technical field of production of foam ceramics, a high-tech ceramic product. Background technique [0002] Foam ceramics are ceramic products with a three-dimensional network skeleton structure. As a new type of inorganic non-metallic filter material, ceramic foam has the advantages of light weight, high strength, high temperature resistance, corrosion resistance, simple regeneration, long service life and good filtration and adsorption properties. Compared with traditional filters such as ceramic particles sintered Compared with body and glass fiber cloth, it is not only easy to operate, energy saving, low cost, but also has good filtering effect. It is evenly distributed and has interpenetrating micropores, so it has the advantages of low density, high porosity, large specific surface area, and low thermal conductivity. In addition, the manufacturing process of foam ceramics is simple, and by selecting different materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B35/10C04B35/622
Inventor 骆兵丁成进吉小冬
Owner JIANGSU WEISHI STRUCTURAL CERAMICS
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