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Ceramic composite for 3D printing and preparation method thereof

A ceramic composite material and 3D printing technology, applied in the direction of additive processing, etc., can solve the problems of few types of 3D printing materials, inability to meet industrial applications, and lengthy manufacturing chain.

Active Publication Date: 2016-10-12
深圳长朗智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Investment casting not only has a complicated production process and a long manufacturing chain, but also requires pre-fabricated hundreds of tools, which is not a small burden on the product development cycle and cost
[0004] 3D printing technology has not yet achieved large-scale promotion and application. One of the main reasons is that it is limited by 3D printing materials.
At present, the types of 3D printing materials that can be really applied to industrial production are still relatively small, which cannot meet the requirements of industrial applications. It is very important to develop special 3D printing materials suitable for different industrial needs to expand the application field of 3D printing.
At present, most of the existing light-curing 3D printing materials are concentrated in pure resin materials, and are mostly used in entertainment creativity, design and development, model display and other fields that do not have strong requirements for the functionality of printed parts. They are aimed at replacing traditional industrial production methods such as melting The 3D printing composite materials developed by mold casting are basically still in a blank state

Method used

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  • Ceramic composite for 3D printing and preparation method thereof
  • Ceramic composite for 3D printing and preparation method thereof
  • Ceramic composite for 3D printing and preparation method thereof

Examples

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preparation example Construction

[0039] The preparation method of the above-mentioned ceramic composite material for 3D printing comprises the following:

[0040] Step S 110, mixing the dispersant, the acrylate monomer and the spiro orthocarbonate expansion monomer to obtain a premix.

[0041] Preferably, if the acrylate monomer is a mixture of two monomers, the two acrylate monomers are uniformly mixed before being mixed with the spiro ring orthocarbonate expansion monomer and added to the dispersant.

[0042] Preferably, if the spiro ring orthocarbonate expansion monomer is a mixture of two expansion monomers, the two expansion monomers are mixed evenly before being mixed with the acrylate monomer and adding the dispersant.

[0043] Step S120, adding ceramic powder to the premix and then ball milling to obtain a mixture.

[0044] Preferably, the ceramic powder is gradually added to the acrylate monomer several times, more preferably, added to the acrylate monomer three times.

[0045] Preferably, the ball...

Embodiment 1

[0056] The preparation of the 3D printing ceramic composite material of embodiment 1 comprises the following steps:

[0057] An electronic balance weighed 17.78 g of hexanediol diacrylate (HDDA) and 2.22 g of ethoxylated pentaerythritol tetraacrylate (EPETA), and mixed and stirred the two resins.

[0058] Measure 10g of spirocyclic orthocarbonate expansion monomer 3,9-diethyl-3,9-propenyloxymethyl-1,5,7,11-tetraoxaspiraundecane (BAOM), add to the acrylate monomer mixture above.

[0059] Measure 2 g of diethylpolypropoxymethyl ammonium chloride (VARIQUAT CC-59 from Degussa Company) as a dispersant and add it to the above mixed monomers, and stir properly to obtain a liquid mixture.

[0060] The spherical silicon dioxide powder is sieved to obtain the required powder, the average diameter of the powder particles is 5 microns, and the diameter of 95% of the powder particles is less than 25 microns. Measure 121g of silicon dioxide powder, gradually add into the above liquid mixt...

Embodiment 2

[0065] 18.18 g of hexanediol diacrylate (HDDA) and 1.82 g of ethoxylated pentaerythritol tetraacrylate (EPETA) were weighed by an electronic balance, and the two resins were mixed and stirred.

[0066] Measure 10g of spirocyclic orthocarbonate expansion monomer 3,9-diethyl-3,9-dimethylol-1,5,7,11-tetraoxaspiraundecane (DHOM), add to the acrylate monomer mixture above.

[0067] Measure 5.2 g of polyamide hyperdispersant (SOLSPERSE 32000 from Noveon Company) and add it to the above mixed monomers, and stir properly to obtain a liquid mixture.

[0068] After sieving the spherical silica powder, the required powder is obtained, the average diameter of the powder particles is about 10 microns, and 95% of the powder particles have a diameter less than 25 microns. Measure 130g of silicon dioxide powder, gradually add into the above liquid mixture in three batches and stir after each addition to fully mix.

[0069]The mixture obtained in the previous step was then placed in a cerami...

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Abstract

The invention relates to a ceramic composite for 3D printing and a preparation method thereof. The ceramic composite for 3D printing is characterized by comprising the following components according to parts by weight: 20-45 parts of acrylate monomer, 121-165 parts of ceramic powder, 10-20 parts of spiro-orthocarbonate expansive monomer, 2-14 parts of a dispersant, 1-3 parts of a photo-initiator, 0-3 parts of a photo-inhibitor, and 1-3 parts of an ultraviolet absorber. The ceramic composite for 3D printing is low in curing and contraction degree and short in curing time and therefore is applicable to investment casting.

Description

technical field [0001] The invention relates to a ceramic composite material for 3D printing and a preparation method thereof. Background technique [0002] Additive manufacturing technology, also known as 3D printing, appeared at the end of the last century and is a new manufacturing technology based on the idea of ​​discrete and accumulation molding. This technology breaks through the complexity limit of traditional manufacturing technology, decouples the relationship between complexity, small batch customization and cost, and is called an important tool of the "third industrial revolution". The principle of a 3D printer is to first process the three-dimensional digital model of the printed part in layers to generate the "scanning" path required to print each layer, and then selectively melt the powder material through the laser, melt the extruded wire with the electrothermal nozzle, and project the ultraviolet light. Methods such as printing images are "stacked" layer by...

Claims

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Application Information

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IPC IPC(8): C04B35/00C04B35/14C04B35/634B33Y70/00
CPCB33Y70/00C04B35/00C04B35/14C04B35/63424C04B2235/3217C04B2235/3244
Inventor 吴涛何奕章赣阳韩加军
Owner 深圳长朗智能科技有限公司
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