Gradient porous material and preparation method thereof, atomizer and electronic atomization device

A gradient porous and atomizer technology, which is used in transportation and packaging, ceramic products, other household appliances, etc., can solve the problem of poor bonding performance of porous materials at both ends of the interface, affecting the service life of gradient porous materials, and poor interface connection. Natural and other problems, to achieve the effect of small firing shrinkage, low cost, and easy automation

Pending Publication Date: 2020-10-02
SHENZHEN SMOORE TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the porous materials of different gradients in the current sintering method are irrelevant to each other, and the interface between different gradients is unnatural. The bonding performance of the porous materials at both ends of the interface is not good, and cracks are easy to appear at the interface, which affects the service life of the gradient porous material.

Method used

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  • Gradient porous material and preparation method thereof, atomizer and electronic atomization device
  • Gradient porous material and preparation method thereof, atomizer and electronic atomization device
  • Gradient porous material and preparation method thereof, atomizer and electronic atomization device

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preparation example Construction

[0029] One embodiment of the present invention provides a method for preparing a gradient porous material, the method comprising the following steps:

[0030] Step a. The raw materials of each functional layer are made into corresponding slurries, wherein the slurries of at least two functional layers are made of different raw materials.

[0031] Step b. Spray-dry the slurry of each functional layer respectively to make dry granulated powder of each functional layer.

[0032] Step c. After distributing the dry granulated powder of each functional layer according to the preset gradient structure, press molding and sintering to make a gradient porous material with multiple functional layers.

[0033] Specifically, the raw materials of each functional layer include at least one of metal materials and non-metal materials. The solvent of the slurry is water or an organic solvent. The functional layer can be designed according to actual needs. For example, the functional layer ca...

Embodiment 1

[0073] (1) Dry granulated powder for alumina layer:

[0074] The raw materials of the alumina layer are firstly called: in parts by mass, 100 parts of alumina powder (median particle size is 50 microns), 2 parts of PVA, 10 parts of glass powder, 10 parts of carbon powder and 78 parts of water. Then grind and mix uniformly to form a stable water-based slurry, and then spray-dry at 250°C to form dry granulated powder for a 200-mesh alumina layer.

[0075] (2) Dry granulated powder for base layer:

[0076] First weigh the raw materials of the base layer: in parts by mass, 100 parts of diatomite powder (median particle size is 50 microns), 0.5 parts of PVA, 10 parts of high-temperature glass powder, 20 parts of carbon powder, and 69.5 parts of water . Then grind and mix evenly to form a stable water-based slurry, and then spray-dry at 250°C to form a dry granulated powder for the base layer of 200 meshes.

[0077] (3) The two kinds of powders prepared by step (1) and step (2) a...

Embodiment 2

[0079] (1) Dry granulation powder for glass ceramic layer:

[0080] The raw materials of the glass-ceramic layer: in parts by mass, 100 parts of high melting point glass powder (median particle size is 100 microns, melting point is above 600 ° C), 10 parts of Suzhou soil, 0.5 parts of PVA, 10 parts of carbon powder, and 70 parts of water. Then grind and mix uniformly to form a stable water-based slurry, and then spray-dry at 280°C to form dry granulated powder for a 100-mesh glass-ceramic layer.

[0081] (2) Dry granulated powder for base layer:

[0082] First weigh the raw materials of the base layer: in parts by mass, 100 parts of silicon carbide powder (median particle size is 100 microns), 2 parts of PVA, 15 parts of high-temperature glass powder, 10 parts of carbon powder, and 60 parts of water. Then grind and mix evenly to form a stable water-based slurry, and then spray-dry at 280°C to form a dry granulated powder for the base layer of 200 meshes.

[0083] (3) The tw...

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Abstract

The invention relates to a gradient porous material and a preparation method thereof, an atomizer and an electronic atomization device. The preparation method of the gradient porous material comprisesthe following steps of: preparing raw materials of all functional layers into corresponding slurry, wherein the slurry of at least two functional layers is prepared from different raw materials; respectively spray-drying the slurry of each functional layer to prepare dry granulation powder of each functional layer; and distributing the dry granulation powder of each functional layer according toa preset gradient structure, carrying out compression molding, and sintering to prepare the gradient porous material with a plurality of functional layers. According to the preparation method of the gradient porous material, the interface bonding force between functional layers is improved.

Description

technical field [0001] The invention relates to the technical field of gradient porous materials, in particular to a gradient porous material and a preparation method thereof, an atomizer and an electronic atomization device. Background technique [0002] Gradient porous material refers to a kind of asymmetric porous material whose pore structure is asymmetric, and the pore structure presents a continuous gradient change along a certain direction. As an important part of gradient functional materials, it is widely used in people's daily life, production And national defense has been more and more widely used. For example, as biological materials, thermal insulation materials, porous electrodes, piezoelectric materials, catalytic converters, sound-absorbing materials and filters, etc. [0003] According to the chemical composition of materials, gradient porous materials can be divided into gradient porous metals, gradient porous ceramics, gradient porous polymers and composi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24F40/40B22F1/00B22F3/11C04B35/10C04B35/634C04B35/63C04B35/14C03C10/00C03C6/02C04B35/584C04B38/06C03C11/00
CPCA24F40/40B22F3/1121C04B35/10C04B35/63416C04B35/6316C04B35/6303C04B35/14C03C10/00C03C1/00C04B35/584C04B38/068C03C11/007C04B2235/96C04B2235/94C04B2235/422B22F1/102B22F1/105B22F1/103C04B38/0074
Inventor 王守平肖令荣张琳王郁江雪涛蒋振龙于春生
Owner SHENZHEN SMOORE TECH LTD
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