Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Aluminum oxide ceramic slurry for photocuring 3D printing, preparation method and aluminum oxide ceramic

An alumina ceramic, 3D printing technology, applied in the direction of additive processing, can solve the problems of low solid phase content, poor curing and molding accuracy, low mechanical properties of products, etc., to improve affinity, reduce curing shrinkage, and improve The effect of density

Pending Publication Date: 2022-02-22
AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide an alumina ceramic slurry for photocuring 3D printing, a preparation method and alumina ceramics, which can effectively solve the problem of solid phase content in the preparation process of traditional alumina ceramic slurry Low, poor curing molding precision, low mechanical properties of the product and other technical defects

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Aluminum oxide ceramic slurry for photocuring 3D printing, preparation method and aluminum oxide ceramic
  • Aluminum oxide ceramic slurry for photocuring 3D printing, preparation method and aluminum oxide ceramic
  • Aluminum oxide ceramic slurry for photocuring 3D printing, preparation method and aluminum oxide ceramic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Step 1: Pretreatment of alumina powder, first dissolve dispersant BYK111 (2.5wt% of alumina mass) in absolute ethanol, then mix with alumina powder (20wt% of 40nm and 80wt% of 2μm) for 5h , and then dry the slurry at 50°C and pass through a 60-mesh sieve, wherein the mass ratio of alumina powder to ethanol is 1:2.5;

[0030] Step 2: Slurry preparation, the alumina powder pretreated in step 1, resin monomer (isobornyl methacrylate, propoxylated neopentyl glycol diacrylate, tri(propoxy) triacrylate The mass ratio of the mixture is 2.5:5:1.5), (2,4,6-trimethylbenzoyl) diphenylphosphine oxide, diluent polyethylene glycol 200 mixed ball mill and vacuum pumped for 0.5h to obtain Alumina ceramic slurry; wherein the volume ratio of alumina powder: resin monomer: diluent = 58:32:10; the initiator is 1.5% of the mass of the monomer, the ball milling medium is spherical alumina of 2 mm, the material-ball ratio 1:2, ball mill speed 300r / min, ball milling time 2h.

[0031] Adopt D...

Embodiment 2

[0033] Step 1: Pretreatment of alumina powder, first dissolve the dispersant BYK111 (1wt% of alumina mass) in absolute ethanol, then mix with alumina powder (20wt% of 40nm and 80wt% of 2μm) for 5h, Then dry the slurry at 50°C and pass through a 60-mesh sieve, wherein the mass ratio of alumina powder to ethanol is 1:2.5;

[0034]Step 2: Slurry preparation, the alumina powder pretreated in step 1, resin monomer (isobornyl methacrylate, propoxylated neopentyl glycol diacrylate, tri(propoxy) triacrylate The mass ratio of the mixture is 2.5:5:1.5), (2,4,6-trimethylbenzoyl) diphenylphosphine oxide, diluent polyethylene glycol 200 mixed ball mill and vacuum pumped for 0.5h to obtain Alumina ceramic slurry; wherein the volume ratio of alumina powder: resin monomer: diluent = 58:32:10; the initiator is 1.5% of the mass of the monomer, the ball milling medium is spherical alumina of 2 mm, the material-ball ratio 1:2, ball mill speed 300r / min, ball milling time 2h.

Embodiment 3

[0036] Step 1: Pretreatment of alumina powder, first dissolve the dispersant BYK180 (3wt% of alumina mass) in absolute ethanol, then mix with alumina powder (20wt% of 40nm and 80wt% of 2μm) for 5h, Then dry the slurry at 50°C and pass through a 60-mesh sieve, wherein the mass ratio of alumina powder to ethanol is 1:2.5;

[0037] Step 2: Slurry preparation, the alumina powder pretreated in step 1, resin monomer (isobornyl methacrylate, propoxylated neopentyl glycol diacrylate, tri(propoxy) triacrylate The mass ratio of the mixture is 2.5:5:1.5), (2,4,6-trimethylbenzoyl) diphenylphosphine oxide, diluent polyethylene glycol 200 mixed ball mill and vacuum pumped for 0.5h to obtain Alumina ceramic slurry; wherein the volume ratio of alumina powder: resin monomer: diluent = 58:32:10; the initiator is 1.5% of the mass of the monomer, the ball milling medium is spherical alumina of 2 mm, the material-ball ratio 1:2, ball mill speed 300r / min, ball milling time 2h.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides aluminum oxide ceramic slurry for photocuring 3D printing, a preparation method and aluminum oxide ceramic, and aims to effectively solve the technical defects that in the traditional aluminum oxide ceramic slurry preparation process, the solid phase content is low, the curing forming precision is poor, the product mechanical property is not high, and the like. The method comprises the following steps: 1, modifying aluminum oxide powder by adopting a polymeric dispersant containing an acidic group; and 2, mixing the modified aluminum oxide powder obtained in the step 1, a resin monomer composition, a photoinitiator and a diluent to obtain aluminum oxide ceramic slurry, wherein the resin monomer composition is composed of a monofunctional resin monomer, a bifunctional resin monomer and a resin monomer with three or more functional groups, and the mass ratio of the monofunctional resin monomer to the bifunctional resin monomer to the resin monomer with three or more functional groups is 1.8-3: 4-7: 0.5-3.2.

Description

technical field [0001] The invention belongs to the technical field of preparation of functional ceramics, and relates to an alumina ceramic slurry for photocuring 3D printing, a preparation method and alumina ceramics, in particular to a kind of alumina ceramic slurry for photocuring 3D printing (DLP technology), and its preparation Method and Alumina Ceramics Background technique [0002] Alumina ceramics have the advantages of high mechanical strength, high resistivity, good electrical insulation, high melting point, good corrosion resistance, excellent chemical stability, etc., and are widely used in machinery, electronic power, chemical industry, medicine, construction and other high-tech fields . The preparation methods include: isostatic pressing molding, dry pressing molding, extrusion molding, tape casting molding, grouting molding, gel injection molding, freezing molding, freezing gelling molding and the like. When preparing components by these processes, it is n...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C04B35/111C04B35/626B33Y70/10B33Y80/00B33Y10/00
CPCC04B35/1115C04B35/626C04B35/6264C04B35/62615B33Y70/10B33Y80/00B33Y10/00
Inventor 董衡李淑琴韩耀王涛吕毅张剑张昊
Owner AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com