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Titanium dioxide ceramic composition, slurry, preparation method and application for 3D direct writing printing

A technology of titanium dioxide and ceramic slurry, which is applied in ceramic molding machines, manufacturing tools, additive processing, etc., can solve the problems of high-solid content ceramic slurry that have not been reported yet, and achieve reduced drying cracking, large application prospects, and good molding performance effect

Active Publication Date: 2021-06-18
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, suitable high-solid content ceramic pastes for 3D direct-writing printing technology have not been reported.

Method used

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  • Titanium dioxide ceramic composition, slurry, preparation method and application for 3D direct writing printing
  • Titanium dioxide ceramic composition, slurry, preparation method and application for 3D direct writing printing
  • Titanium dioxide ceramic composition, slurry, preparation method and application for 3D direct writing printing

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preparation example Construction

[0043] Another aspect of the embodiment of the present invention also provides the preparation method of the aforementioned titanium dioxide ceramic slurry for 3D direct writing printing, which includes: uniformly mixing the titanium dioxide ceramic material, dispersant, binder and solvent, and then stirring to obtain the obtained Titanium dioxide ceramic slurry for 3D direct writing printing.

[0044] In some embodiments, the mass ratio of the dispersant, binder, solvent, and titanium dioxide ceramic material is (0.30-1.20): (0.05-2.00): (21.80-39.65): (60.00-75.00).

[0045] In some embodiments, the preparation method specifically includes:

[0046] Dissolve the dispersant and binder in the solvent at room temperature, and stir mechanically for 30-90 minutes to form a uniform mixed solution;

[0047] The titanium dioxide ceramic material is gradually added into the mixed solution, mechanically stirred for 1.0-1.5 hours, and the rotation speed is 1000-2000 rpm / min, and the t...

Embodiment 1

[0070] (1) Preparation of titanium dioxide ceramic slurry

[0071] First, dissolve sodium hexametaphosphate with a mass fraction of 0.30% and sodium alginate with a mass fraction of 0.05% in deionized water with a mass fraction of 31.65% at room temperature, and mechanically stir for 30 minutes to fully dissolve them in deionized water Form a homogeneous solution; then the mass fraction is 68.00% titanium dioxide ceramic powder gradually added in the homogeneous solution (SEM of titanium dioxide ceramic powder such as figure 1 shown), mechanically stirred for 1.0 hour, and the rotating speed was 1500rpm / min, and the titanium dioxide ceramic slurry was prepared; finally, the prepared titanium dioxide ceramic slurry for 3D printing was transferred to the material tube for vibration and defoaming, and stood for 0.5 hours for use. The viscosity of the ceramic slurry is figure 2 shown.

[0072] (2) 3D direct writing printing titanium dioxide ceramic parts

[0073] Correctly ins...

Embodiment 2

[0075] (1) Preparation of titanium dioxide ceramic slurry

[0076] First, dissolve sodium hexametaphosphate with a mass fraction of 0.30% and sodium alginate with a mass fraction of 0.05% in deionized water with a mass fraction of 27.65% at room temperature, and mechanically stir for 60 minutes to fully dissolve them in deionized water Form a uniform solution; then gradually add titanium dioxide ceramic powder with a mass fraction of 72.00% into the uniform solution, and mechanically stir for 1.0 hour at a speed of 1500rpm / min to prepare a titanium dioxide ceramic slurry; finally, the prepared titanium dioxide for 3D printing The ceramic slurry is transferred to the material pipe for shaking and defoaming, and it is left to stand for 0.5 hours for use. The viscosity of the ceramic slurry is as follows: figure 2 shown.

[0077] (2) 3D direct writing printing titanium dioxide ceramic parts

[0078] Correctly install the material tube containing the titanium dioxide ceramic sl...

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Abstract

The invention discloses a titanium dioxide ceramic composition for 3D direct writing printing, a slurry, a preparation method and an application. The titanium dioxide ceramic slurry for 3D direct-writing printing includes: titanium dioxide ceramic material, dispersant, binder and solvent, and the dispersant includes sodium hexametaphosphate, sodium citrate and sodium tripolyphosphate, etc., and the binder Agents include sodium alginate, sodium carboxymethylcellulose, polyethylene glycol, and kaolin. The preparation method can be successfully applied to 3D direct writing printing titanium dioxide ceramic parts. The present invention can prepare titanium dioxide ceramic slurry for 3D direct-writing printing with high solid phase content, and the process is simple, environmentally friendly and economical, and has good molding performance; the prepared titanium dioxide ceramic slurry is directly printed through the 3D direct-writing printing manufacturing process, In this way, the personalized manufacturing of titanium dioxide ceramics can be realized, and titanium dioxide ceramic parts with high precision can be printed, which has great application prospects in the fields of biomaterials and photocatalysis.

Description

technical field [0001] The present invention relates to a preparation technology of ceramic slurry for 3D direct writing printing, in particular to a titanium dioxide ceramic composition for 3D direct writing printing, titanium dioxide ceramic slurry and its preparation method, and its application in 3D direct writing printing, The invention belongs to the technical field of additive manufacturing of ceramic materials. Background technique [0002] Ceramic materials are widely used in industrial production and social life due to their excellent properties such as high strength, high hardness, wear resistance, corrosion resistance and chemical stability. However, due to its high hardness and high brittleness, it is difficult to form and process ceramic materials. Traditional ceramic forming methods require molds, which make it difficult to form ceramic parts with complex structures and realize the manufacture of personalized ceramic samples, which largely limits the applicat...

Claims

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Application Information

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IPC IPC(8): C04B35/46C04B35/626C04B35/63C04B35/632C04B35/634C04B35/636B28B1/00B33Y70/10B33Y10/00
CPCB28B1/001B33Y10/00B33Y70/00C04B35/46C04B35/6263C04B35/6303C04B35/632C04B35/63488C04B35/636C04B35/6365C04B2235/5445C04B2235/5454C04B2235/6562C04B2235/6567
Inventor 陈涛储成义孙爱华吴焕圣郭建军李志祥晏育刚许高杰程昱川
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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