Preparation method of porous ceramic material, porous ceramic material and application of porous ceramic material

A technology of porous ceramics and raw materials, applied in the direction of ceramic products, applications, ceramic molding machines, etc., can solve problems such as complex structure, low service life, complex production process, etc.

Active Publication Date: 2016-12-07
SHENZHEN SMOORE TECH LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current common electronic vaporizers are composed of various comp...

Method used

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  • Preparation method of porous ceramic material, porous ceramic material and application of porous ceramic material
  • Preparation method of porous ceramic material, porous ceramic material and application of porous ceramic material
  • Preparation method of porous ceramic material, porous ceramic material and application of porous ceramic material

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preparation example Construction

[0028] refer to figure 1 , a method for preparing porous ceramics in one embodiment, comprising the following steps:

[0029] Step S100: Provide raw materials.

[0030] The raw materials include silicate raw materials, pore formers and binders, the silicate raw materials include sodium silicate and other compounds, and the other compounds are at least one of oxides, nitrides and carbides. The resource-rich and non-polluting inorganic silicate material is used as the aggregate of the porous ceramic material, and the sintering conditions are relatively mild, which can be sintered at a lower temperature, air atmosphere and normal pressure.

[0031] In particular, oxides include alumina, zirconia, silica, iron oxide, sodium oxide, potassium oxide, calcium oxide, magnesium oxide, and the like.

[0032] In particular, the nitride includes silicon nitride and the like.

[0033] In particular, carbides include silicon carbide, boron carbide, and the like.

[0034] In particular, o...

Embodiment 1

[0082] After grinding the alumina powder through an 80-mesh sieve, take 400g of alumina powder, add 60g of 80-100-mesh wood chips, and mix them in a ball mill for 30 minutes, then add industrial water glass with a modulus of 2.6 (the main component is sodium silicate ) 230g, mixed and stirred for 30min to obtain a premix.

[0083] Dry the premixed material in a drying oven at 80°C for 400 minutes to obtain a dried silicate aggregate.

[0084] Preheat the mixer to 220°C, add 20g of polypropylene to the mixer until the polypropylene is completely melted, then cool to 170°C, then add 400g of silicate aggregate, 300g of paraffin, and mix for 1 hour; continue to add 40 g of stearic acid and 40 g of dibutyl phthalate were mixed for 2 hours to obtain raw materials for injection.

[0085] The injected raw materials are cooled and pelletized by crocodile crushing equipment. The pelletized injection raw materials were put into the hopper of the injection molding machine, and injection...

Embodiment 2

[0089] After grinding zirconia through a 60-mesh sieve, take 400g of zirconia, add 80g of wood chips of 60-80mesh, and mix them in a ball mill for 40 minutes, then add 160g of industrial water glass with a modulus of 2.8, and mix and stir for 20 minutes to obtain the prepared product. mix.

[0090] Dry the premixed material in a drying oven at 100°C for 300 minutes to obtain a dried silicate aggregate.

[0091] Preheat the mixer to 220°C, add 40g of polypropylene to the mixer until the polypropylene is completely melted, then cool to 170°C, then add 400g of silicate aggregate, 280g of paraffin, and mix for 1 hour; continue to add 40 g of stearic acid and 40 g of dibutyl phthalate were mixed for 2 hours to obtain raw materials for injection.

[0092] Cool the raw materials for injection and cut them into pellets. The pelletized injection raw materials were put into the hopper and injection molded to obtain a green body. The injection temperature was 140° C., the injection pre...

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Abstract

The invention relates to a preparation method of a porous ceramic material. The preparation method comprises the following steps of mixing metasilicate raw materials with a pore forming agent so as to obtain a premix, wherein the metasilicate raw materials comprise sodium silicate and other compounds, and the other compounds are at least one of oxide, nitride and carbide; drying the premix so as to obtain metasilicate aggregate; performing mixed refining on the metasilicate aggregate and a bonding agent so as to obtain injection raw materials, wherein in percentage by mass, the metasilicate aggregate is 50-60%, and the bonding agent is 40-50%; performing injection molding on the injection raw materials so as to obtain a green body; and sequentially performing degumming treatment and calcination treatment on the green body so as to obtain the porous ceramic material. According to the preparation method of the porous ceramic material, a method for adding the pore forming agent and an injection molding method are combined, and the prepared porous ceramic material is high in porosity and controllable in pore diameter and has favorable mechanical properties; and an injection molding technology is adopted, so that compared with a dry pressing shaping technology, the injection molding technology has the advantage that the production efficiency is obviously increased, and the porous ceramic material is suitable for large-scale production.

Description

technical field [0001] The invention relates to the field of preparation of ceramic materials, in particular to a preparation method of a porous ceramic material, a porous ceramic material and applications thereof. Background technique [0002] Ceramic materials are a class of inorganic non-metallic materials made of natural or synthetic compounds through shaping and high-temperature sintering, and have a wide range of uses. [0003] At present, the preparation methods of porous ceramic materials commonly used in industry mainly include adding pore-forming agent method, organic foam impregnation method, foaming method, injection molding method, particle accumulation method and so on. However, the above preparation methods all have their limitations. For example, the porous ceramic material obtained by adding a pore-forming agent has poor pore distribution uniformity, poor mechanical properties, and low production efficiency; the shape density of the product obtained by the o...

Claims

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Application Information

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IPC IPC(8): C04B38/06B28B1/24A24F47/00
Inventor 周宏明夏庆路肖凯文李荐刘平昆
Owner SHENZHEN SMOORE TECH LTD
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