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A kind of photocuring 3D printing hierarchical porous ceramic material and preparation method thereof

A technology of 3D printing and ceramic materials, which is applied in the field of porous ceramic materials, can solve the problems that the distribution of pores cannot be realized, and the pore size of multi-level porous ceramic materials can not be realized.

Active Publication Date: 2022-01-25
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the prior art also discloses a variety of methods for photocuring 3D printing porous ceramic materials; however, these existing technologies are still unable to realize the preparation of hierarchically porous ceramic materials with controllable pore distribution and pore size

Method used

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  • A kind of photocuring 3D printing hierarchical porous ceramic material and preparation method thereof
  • A kind of photocuring 3D printing hierarchical porous ceramic material and preparation method thereof
  • A kind of photocuring 3D printing hierarchical porous ceramic material and preparation method thereof

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preparation example Construction

[0055] Based on the deficiencies of the prior art, the present invention provides a method for preparing a photocured 3D printed hierarchically porous ceramic material. In parts by weight, the raw material formula used in the preparation method is as follows: 10-15 parts by weight of photosensitive resin; diluent 20-25 parts by weight; ceramic powder 35-50 parts by weight; hierarchical pore accelerator 1-15 parts by weight; surfactant 1-8 parts by weight; dispersant 1-10 parts by weight; curing agent 5-9 parts by weight ; Ultraviolet light absorption regulator 1-5 parts by weight.

[0056] figure 1 It is a process flow chart of the preparation method of the light-cured 3D printing multi-level porous ceramic material provided by the embodiment of the present invention, see figure 1 , mainly including the following steps:

[0057] Steps for preparing the primary printing resin slurry: adding the diluent to the photosensitive resin and performing heat preservation and stirring ...

Embodiment 1

[0085]In this example, a light-cured 3D printing hierarchical porous ceramic material is prepared. The raw material formula used is as follows: 15 parts by weight of photosensitive resin, 20 parts by weight of diluent, 35 parts by weight of ceramic powder, 15 parts by weight of hierarchical porous accelerator, 1 part by weight of a surfactant, 4 parts by weight of a dispersant, 5 parts by weight of a curing agent, and 5 parts by weight of an ultraviolet light absorption regulator. Wherein, the photosensitive resin is a resin obtained by mixing 1,6-hexanediol diacrylate and tripropylene glycol diacrylate at a ratio of 7:1. The diluent is deionized water. Ceramic powder is Al 2 o 3 . The hierarchical pore promoter is a mixture of carbon fiber and indium at a ratio of 7:3. The surfactant is γ-methacryloxypropyltrimethoxysilane coupling agent. The dispersant is polyvinylpyrrolidone. The curing agent is 2,4,6-trimethylbenzoyl-diphenylphosphine oxide. The ultraviolet light ab...

Embodiment 2

[0098] In this example, a light-cured 3D printing hierarchical porous ceramic material is prepared. The raw material formula used is as follows: 10 parts by weight of photosensitive resin, 25 parts by weight of diluent, 40 parts by weight of ceramic powder, 10 parts by weight of hierarchical porous accelerator, 4 parts by weight of a surfactant, 4 parts by weight of a dispersant, 6 parts by weight of a curing agent, and 1 part by weight of an ultraviolet light absorption regulator. Wherein, the photosensitive resin is a 6:5 mixed resin of trimethylolpropane triacrylate and trimethylolpropane tetraacrylate. The diluent is silica sol. Ceramic powder is SiO 2 、Al 2 o 3 , ZrO 2 Mixed powders were obtained in a ratio of 7:1:2. The hierarchical pore promoter is a mixture of Ti powder, ammonium salt and lead in a ratio of 4:3:3. The surfactant is a methacryloxysilane coupling agent. The dispersant is sodium polyacrylate. The curing agent is 2-hydroxy-2-methyl-1 phenylacetone-...

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Abstract

The present invention relates to a light-curing 3D printing multi-level porous ceramic material and a preparation method thereof, wherein the preparation method of the light-curing 3D printing multi-level porous ceramic material comprises the following steps: preparing a diluent and a photosensitive resin into a primary printing resin slurry material; the ceramic powder, hierarchical pore promoter, and surfactant are formulated into a hierarchical pore enhancer; the hierarchical pore enhancer includes a reactive hierarchical pore enhancer and a non-reactive Mix and stir the resin slurry, multi-stage pore strengthening agent, dispersing agent, curing agent, and ultraviolet light absorption regulator to obtain a ceramic slurry; use a light-curing 3D printer to perform photocuring molding on the ceramic slurry to obtain a photocuring molding element blank; degreasing and sintering the light-cured green blank to obtain a multi-level porous ceramic material. The invention is mainly used for preparing multi-level porous ceramic materials with controllable pore distribution and pore diameter and high porosity, and the preparation method has low cost and simple process.

Description

technical field [0001] The invention relates to the technical field of porous ceramic materials, in particular to a light-cured 3D printed multi-level porous ceramic material and a preparation method thereof. Background technique [0002] Porous ceramics is a ceramic material characterized by the existence of pores, its porosity is usually 20-97%, and it has excellent properties such as low density, high specific surface area, low thermal conductivity, and corrosion resistance. Porous ceramics mainly use the combination of pore structure and material to have their unique properties to achieve the required functions. They are widely used in metallurgy, chemical industry, biological materials and other industries, such as high temperature insulation materials, filter materials, electrode materials, catalyst carrier, etc. [0003] The properties and applications of porous ceramic materials depend on their phase composition and microstructure, and their microstructure mainly de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/63C04B35/634C04B35/638C04B38/02B33Y70/10
CPCC04B35/63C04B35/634C04B35/638C04B38/02B33Y70/10C04B2235/6026C04B2235/5454C04B38/0074
Inventor 李金国李乔磊梁静静周亦胄孙晓峰
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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