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Preparation method of zirconia ceramic material extrusion type 3D printing material

A zirconia ceramic and 3D printing technology, applied in the direction of additive processing, etc., can solve the problems of increasing manufacturing time and cost, increasing mass production of customized products, etc.

Pending Publication Date: 2021-09-10
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the molds used in casting greatly increase the time and cost of manufacturing. At the same time, there are certain requirements for the operation level of technicians, which increases the difficulty of mass production of customized products in a short period of time.

Method used

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  • Preparation method of zirconia ceramic material extrusion type 3D printing material
  • Preparation method of zirconia ceramic material extrusion type 3D printing material
  • Preparation method of zirconia ceramic material extrusion type 3D printing material

Examples

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preparation example Construction

[0032] A method for preparing a zirconia ceramic material extruded 3D printing material, comprising:

[0033] read on figure 1 , Step 1: Mix 0.1-2 parts of dispersant, 0.1-2 parts of adhesive, 0.1-1 part of plasticizer, 1-5 parts of humectant and 66.7-150 parts of deionized water, Obtain the premix; the dispersant makes the zirconia ceramic powder evenly distributed in the premix, the binder improves the structural strength of the zirconia slurry green body, the plasticizer improves the plasticity of the zirconia slurry, and the humectant improves the zirconia slurry. material stability.

[0034] Step 2: Add ammonia water with a purity of 25-28% to the premixed liquid to make the pH of the premixed liquid 8-11 to obtain an alkaline mixed liquid; the purpose of adjusting the premixed liquid to alkaline is to assist the dispersant and make the zirconia ceramic The powder is evenly distributed in the premix.

[0035] Step 3: Add 100 parts of zirconia powder into the alkaline m...

Embodiment 1

[0042] This implementation case shows a preparation method of extruded 3D printing material of zirconia ceramic material according to the following steps:

[0043] Step (1) Mix 0.32g of dispersant, 0.32g of adhesive, 0.24g of plasticizer, 2g of humectant and 80ml of deionized water, and stir evenly for 5 minutes to fully dissolve the additives.

[0044] Step (2) adding ammonia water to the premixed liquid to make the premixed liquid alkaline to obtain the premixed liquid, the purity of the added ammonia water is 25-28%, and the pH of the solution is adjusted to be 10.

[0045] Step (3) Add 80g of zirconia ceramic powder into the premixed solution, then add 2g of defoamer AF865, stir for 5min, then add the slurry to an ultrasonic disperser with a power of 50W and disperse at a frequency of 40kHz for 3min. Stir with a glass rod for 2 minutes, then disperse for 3 minutes, stir with a glass rod for 2 minutes, finally disperse for 4 minutes, stir with a glass rod for 2 minutes, and...

Embodiment 2

[0049] This implementation case shows a preparation method of extruded 3D printing material of zirconia ceramic material according to the following steps:

[0050] Step (1) Mix 0.1g of dispersant, 0.1g of adhesive, 0.1g of plasticizer, 1g of humectant and 66.7ml of deionized water, and stir evenly for 5 minutes to fully dissolve the additives.

[0051] Step (2) adding ammonia water to the premixed liquid to make the premixed liquid alkaline to obtain the premixed liquid, the purity of the added ammonia water is 25-28%, and the pH of the solution is adjusted to be 8.

[0052] Step (3) Add 100g of zirconia ceramic powder into the premix liquid, then add 1g of defoamer AF865, stir for 5min, then add the slurry to an ultrasonic disperser with a power of 50W and disperse at a frequency of 40kHz for 3min. Stir with a rod for 2 minutes, then disperse for 3 minutes, stir with a glass rod for 2 minutes, finally disperse for 4 minutes, stir with a glass rod for 2 minutes, and cool the d...

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Abstract

The invention provides a preparation and printing method of a zirconia ceramic material extrusion type 3D printing material. The zirconium oxide ceramic material capable of being applied to extrusion type 3D printing is prepared by mixing a plurality of auxiliaries with zirconium oxide powder and carrying out defoaming and dispersing treatment. By accurately controlling the material ratio, printing parameters and a high-temperature glue discharging process, the material can be used for manufacturing zirconia ceramic products with excellent mechanical properties and biocompatibility, and can be applied to the medical fields of implants, dental crowns, skeleton manufacturing and the like; the manufacturing cost of the die can be saved, the requirement on the operation level of technicians is reduced, the production time of a single part is greatly shortened, the manufacturing period of small-batch products is shortened, and the economic benefit is further improved.

Description

technical field [0001] The invention belongs to the technical field of 3D printing material extrusion, and in particular relates to a method for preparing a zirconia ceramic material extrusion type 3D printing material. Background technique [0002] Zirconia ceramics are used in automotive, aerospace and other engineering fields because of their excellent physical properties such as high hardness and toughness and stable chemical properties. In view of the good biocompatibility of zirconia, square zirconia polycrystalline ceramics (Square zirconia polycrysta, TZP) are more and more used in the manufacture of implants, crowns, and bones, and are attracting much attention in the medical field. one of the materials. Due to the high hardness of ceramic materials, brittle fractures are prone to occur, and it is very difficult to use subtractive material manufacturing to form complex structural specimens. Traditional techniques often use casting methods, such as injection moldin...

Claims

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Application Information

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IPC IPC(8): C04B35/48C04B35/622B33Y70/10B33Y50/02B33Y10/00
CPCC04B35/48C04B35/622B33Y70/10B33Y10/00B33Y50/02C04B2235/3225C04B2235/5436C04B2235/6026C04B2235/606C04B2235/656C04B2235/6562C04B2235/6567
Inventor 韩江田润泽田晓青马丁逸飞夏链
Owner HEFEI UNIV OF TECH
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