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A slurry for photocuring 3D printing ceramics and a method for preparing ceramic products thereof

A technology of 3D printing and light-curing materials, applied in the field of ceramic 3D printing, can solve the problems of high organic content of photosensitive resin, high cost of raw materials, environmental pollution, etc., and achieve the effect of simple and effective preparation method, good fluidity and high strength

Active Publication Date: 2022-03-25
FOSHAN DONGPENG CERAMIC +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, 3D printing technology has been applied in organic materials and metal materials, but it is still less applied in the field of ceramic materials.
[0003] However, light-cured ceramic 3D printing technology is currently mostly aimed at special ceramic materials such as oxides, nitrides, carbides, and bioceramic powders, while traditional silicate ceramic materials are less involved.
Moreover, the organic content of the photosensitive resin in the photocurable ceramic slurry is high, which makes the raw material cost of the 3D printing method high, and the gas decomposed during the debinding of the printed ceramic body is easy to cause environmental pollution

Method used

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  • A slurry for photocuring 3D printing ceramics and a method for preparing ceramic products thereof
  • A slurry for photocuring 3D printing ceramics and a method for preparing ceramic products thereof
  • A slurry for photocuring 3D printing ceramics and a method for preparing ceramic products thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0057] Preferably, the ceramic product preparation method using the slurry for photocuring 3D printing ceramics comprises the following steps:

[0058] Step A, according to the mass percentage, mix 70-85% ceramic powder, 10-25% light-curing material and 4-10% additives and ball mill for 20-60 minutes to obtain a volume solid content of 40-60%. slurry;

[0059] Step B, put the slurry mixed in step A into a high-speed vacuum agitator to evacuate and stir for 20-40 min to prepare a slurry for photocuring 3D printing ceramics;

[0060] Step C, putting the vacuum-stirred slurry in Step B into a light-curing 3D printer for 3D printing and molding to obtain a green body;

[0061] Step D, cleaning up excess slurry on the green body prepared in step C, and then drying;

[0062] Step E, debinding and sintering the dried green body in step D to obtain a ceramic product.

[0063] Using the ceramic product preparation method for photocuring 3D printing ceramic slurry can save the time a...

Embodiment 1～6

[0078] Examples 1-6 Weigh each raw material according to Table 1 to Table 5 according to mass percentage.

[0079]

[0080] Table 1

[0081]

[0082] Table 2

[0083]

[0084] table 3

[0085]

[0086] Table 4

[0087]

[0088] table 5

[0089] Embodiments 1-6 prepare the slurry for photocuring 3D printing ceramics and ceramic products thereof according to the following steps:

[0090] Preparation of ceramic powder

[0091] Step A1, put waste porcelain, white clay, potassium feldspar, sand 5, Jiangxi porcelain stone, kaolin, pyrophyllite and burnt gem into the ball mill jar, and simultaneously put deionized water, lignin, sodium metasilicate and Coupling agent K-560, and then rapid wet ball milling for 30 minutes to prepare ceramic slurry;

[0092] In step A2, the ceramic slurry prepared in step A1 is dried, and then dry-method rapid ball milled for 3 minutes, and the obtained powder is passed through a 100-mesh sieve and stored for later use.

[0093] Prep...

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Abstract

The invention discloses a slurry for photocuring 3D printing ceramics and a method for preparing ceramic products thereof. The raw materials include 70-85% ceramic powder, 10-25% photocuring material and 4-10 % additives; wherein, calculated according to mass percentage, ceramic powder includes 12-16% waste porcelain, 16-18% white clay, 6-8% potassium feldspar, 4-6% sand 5, 12-14% Jiangxi porcelain Stone, 18-22% kaolin, 9-11% pyrophyllite and 12-14% pyrophyllite; calculated by mass percentage, the light-curing material includes 20-40% monomer, 2-5% N, N-methylene bis Acrylamide, 40-60% silica sol, 10-20% glycerin and 1-5% photoinitiator. The prepared slurry has high solid content, good fluidity, and less organic matter content in the slurry, so that the harmful gas generated by decomposition during the debinding process of producing ceramic products is greatly reduced, and it is more environmentally friendly, and the structure of the green body is better after firing. For compactness, the prepared ceramic products have high strength.

Description

technical field [0001] The invention relates to the technical field of ceramic 3D printing, in particular to a slurry for photocuring 3D printing ceramics and a method for preparing ceramic products thereof. Background technique [0002] 3D printing technology has the advantages of short production cycle, printable complex structure, integrated manufacturing, and low cost of personalized products. It will be widely used in industry, medicine, aerospace and other fields. At present, 3D printing technology has been applied in organic materials and metal materials, but its application in the field of ceramic materials is still relatively small. The technologies applied to ceramic 3D printing mainly include clay extrusion method (LDM), light curing molding method (SLA, DLP), slurry direct writing technology (DIW), ceramic fusion deposition technology (FDC), selective laser sintering technology (SLS), layered solid manufacturing technology (LOM) and three-dimensional inkjet prin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/04C04B33/13C04B33/132B28B1/00B33Y10/00B33Y70/10
CPCC04B33/04C04B33/1324C04B33/1321C04B33/131C04B33/1305B28B1/001B33Y70/00C04B2235/3418C04B2235/3472C04B2235/6026Y02P40/60
Inventor 周梅刘文涛钟保民曾德朝
Owner FOSHAN DONGPENG CERAMIC
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