Ceramic 3D printing paste and preparation method thereof

A 3D printing and ceramic technology, applied in the field of 3D printing, can solve the problems of difficult processing and hinder the development of ceramic materials, and achieve the effect of good uniformity

Inactive Publication Date: 2020-01-17
SHENZHEN SUNSHINE LASER & ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As we all know, ceramic materials are hard and brittle, and the post-processing is difficult, which hinders the development of ceramic materials to a certain extent.

Method used

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  • Ceramic 3D printing paste and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0038] The preparation method of this embodiment includes step S1 to step S3.

[0039] Step S1, performing pretreatment on the ceramic powder to obtain pretreated ceramic powder.

[0040] Use absolute ethanol and dispersant to ceramic powder figure 1 The ceramic powder 1 in the ceramic powder is processed, specifically, the ceramic powder can be processed with 40% to 60% absolute ethanol and a dispersant whose quality is 0.5% to 2.5% of the ceramic powder quality. processed, collected after drying, and obtained the pre-treated ceramic powder that is figure 1 Ceramic powder in 2.

[0041] Step S2, adding the pretreated ceramic powder into the prepared mixed solution of photosensitive resin, dispersant, defoamer and photoinitiator, and ball milling to prepare slurry.

[0042] In this embodiment, the photosensitive resin is a mixture of three resin monomers. The slurry obtained by ball milling is ceramic slurry.

[0043]Step S3, adding a thickener to the obtained slurry, sti...

experiment example 1

[0047] Weigh 75g of IBOA, 150g of HDDA and 75g of TMPTA (13.03% of the total mass), place the photosensitive resin in a 1L ball mill jar with 1kg of ground zirconium balls, then add 36.85g of dispersant BYK- 110 (for ZrO 2 2% of powder mass), 11.52g of defoamer BYK-088 (0.5% of total mass) and 1.5g of photoinitiator 184 (0.5% of photosensitive resin mass), ball milling 160r / min, ball milling 0.5h . After each component is completely dissolved, add 1861g (ZrO 2 Solid content is 80%) ZrO through powder pretreatment 2 Powder. After ball milling at 180r / min for 20h, ZrO was collected 2 ceramic slurry. Then add 92.12g of thickener BYK-415 (4% ​​of the total mass) thereto, stir at high speed for 1h, and then stand still for 10h to obtain a ceramic paste.

experiment example 2

[0049] Weigh 75g of IBOA, 150g of HDDA and 75g of TMPTA (10.95% of the total mass), place the photosensitive resin in a 1L ball mill jar with 1kg of ground zirconium balls, then add 45.47g of dispersant BYK- 110 (ZrO 2 2% of powder mass), 13.7g of defoamer BYK-088 (0.5% of total mass) and 1.2g of photoinitiator 184 (0.4% of photosensitive resin mass), ball milling 160r / min, ball milling 0.5h. After each component is completely dissolved, add 2296g (ZrO 2 Solid content is 83%) ZrO through powder pretreatment 2 Powder. After ball milling at 180r / min for 20h, ZrO was collected 2 ceramic slurry. Then add 82.17g of thickener BYK-415 (3% of the total mass) thereto, stir at a high speed for 1 hour, and then stand still for 10 hours to obtain a ceramic paste.

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Abstract

The invention discloses a ceramic 3D printing paste material and a preparation method thereof. According to the preparation method, the following components in percentage by mass are adopted: 15-20% of a photosensitive resin; wherein the photosensitive resin comprises a monofunctional monomer, a bifunctional monomer and a trifunctional monomer at a mass ratio of 1: 2: 1; the viscosity of the monofunctional monomer is less than 15 pa*s; the viscosity of the bifunctional monomer is less than 20 pa*s; the viscosity of the trifunctional monomer is less than 200 pa*s; 80% to 85% of ceramic powder;a dispersant with a mass amount accounting for 1%-4% of the mass amount of the ceramic powder; 0.1% to 1% of a defoamer; a photoinitiator with a mass amount accounting for 0.1% to 0.5% of the mass amount of the photosensitive resin; and 0.5% to 5% of a thickening agent. The ceramic 3D printing paste material is obtained by the preparation method, has good dispersion uniformity and excellent anti-settling performance.

Description

technical field [0001] The present application relates to the technical field of 3D printing, in particular to a ceramic 3D printing paste and a preparation method thereof. Background technique [0002] Ceramic materials, as a class of traditional inorganic non-metallic materials, have been developed for thousands of years. Because of its unique physical and chemical properties, it has been widely used in various industries. At the same time, 3D printing technology is a molding technology that has developed rapidly in recent years, also known as additive manufacturing technology. 3D printing technology is different from traditional equal material and subtractive technology, and realizes many molding problems that cannot be realized by traditional technology. As we all know, ceramic materials are hard and brittle, and the post-processing is difficult, which hinders the development of ceramic materials to a certain extent. Ceramic 3D printing technology is an organic combin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/48C04B35/626C04B35/634B33Y70/10
CPCC04B35/6261C04B35/6264C04B35/6344C04B35/48B33Y70/00
Inventor 肖坦邹倩陆青肖华军江涛牛文明顾成言马建立
Owner SHENZHEN SUNSHINE LASER & ELECTRONICS TECH CO LTD
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