Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of photosensitive ceramic liquid and its ceramic parts for 3D printing

A 3D printing and photosensitive ceramic technology, which is applied in the field of ceramic parts, can solve the problems of ceramics that cannot be transformed through sintering, easy to shrink violently, and high solvent content, etc., to achieve cross-linking molding, high degree of sintering densification, and high Si content. Effect

Active Publication Date: 2021-06-08
TIANJIN UNIV
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few studies on such raw materials at present, and they are basically limited to the application of polymers after printing, and cannot be converted into ceramics after sintering.
This is due to the high solvent content, low silicon content, and low viscosity in the preparation process, and it is difficult to cross-link into a tight network structure after sintering at elevated temperatures. extremely low

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
  • A kind of photosensitive ceramic liquid and its ceramic parts for 3D printing
  • A kind of photosensitive ceramic liquid and its ceramic parts for 3D printing
  • A kind of photosensitive ceramic liquid and its ceramic parts for 3D printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation of a photosensitive ceramic liquid and a ceramic part for photocuring 3D printing, comprising the following steps:

[0030] (1) After mixing 79.2% epoxy silicone oil, 19.8% acrylic acid, and 1% triethylamine evenly, heat at 105°C for 6 hours, and obtain photosensitive silicone oil after cooling;

[0031] (2) Add simethicone oil with 10% photosensitive silicone oil quality to the photosensitive silicone oil obtained in step (1), 1% dibutyltin dilaurate, 1% TPO-L, 0.02% Sudan III, mix uniformly, Obtain photosensitive ceramic liquid;

[0032] (3) Put the photosensitive ceramic liquid obtained in step (2) into a digital light processing 3D printing device, set the printing parameters to be 50 μm for a single layer, the exposure time for a single layer is 5 s, and the exposure energy per unit area is 6 mJ / cm 2 , print according to the preset model to obtain the ceramic green body;

[0033] (4) The ceramic body obtained in step (3) is put into a high-temperatu...

Embodiment 2

[0035] A preparation of a photosensitive ceramic liquid and a ceramic part for photocuring 3D printing, comprising the following steps:

[0036] (1) Mix 81.7% epoxy silicone oil, 16.3% acrylic acid, and 2% N,N-dimethylcyclohexylamine evenly, heat at 95°C for 5 hours, and obtain photosensitive silicone oil after cooling;

[0037] (2) To the photosensitive silicone oil obtained in step (1), add hydroxy silicone oil with 20% photosensitive silicone oil quality, 2.5% tetrabutyl titanate, 1% TPO, 0.02% Sudan IV, and mix evenly to obtain photosensitive ceramic liquid ;

[0038] (3) Put the photosensitive ceramic liquid obtained in step (2) into a digital light processing 3D printing device, set the printing parameters as a single layer of 50 μm, a single layer exposure time of 7s, and an exposure energy per unit area of ​​3mJ / cm 2 , print according to the preset model to obtain the ceramic green body;

[0039] (4) The ceramic green body obtained in step (3) is put into a high-temp...

Embodiment 3

[0041]A preparation of a photosensitive ceramic liquid and a ceramic part for photocuring 3D printing, comprising the following steps:

[0042] (1) Mix 8.32% epoxy silicone oil, 13.8% acrylic acid, and 3% triethylamine evenly, heat at 90°C for 3 hours, and obtain photosensitive silicone oil after cooling;

[0043] (2) Add 30% hydroxy silicone oil, 3% tetrabutyl titanate, 2% TPO-L, and 0.01% Sudan III to the photosensitive silicone oil obtained in step (1), and mix evenly to obtain a photosensitive silicone oil. ceramic liquid;

[0044] (3) Put the photosensitive ceramic liquid obtained in step (2) into a digital light processing 3D printing device, set the printing parameters as a single layer of 50 μm, a single layer exposure time of 10 s, and an exposure energy per unit area of ​​2.8 mJ / cm 2 , print according to the preset model to obtain the ceramic green body;

[0045] (4) The ceramic green body obtained in step (3) is put into a high-temperature argon gas tube furnace a...

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

PropertyMeasurementUnit
viscosityaaaaaaaaaa
compressive strengthaaaaaaaaaa
compressive strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a photosensitive ceramic fluid for photocuring 3D printing, comprising: 74.3%-89.3% photosensitive silicone oil, 8.7%-22.3% silicone oil additive, 0.9%-2.6% metal catalyst, 0-0.02% dyeing agent, 0.9%-2.0% photoinitiator, wherein the photosensitive silicone oil is made of 74.6%-83.2% epoxy-containing liquid polysiloxane and 13.8%-24.9% acrylic acid. The invention can obtain ceramic products with good structure through sintering.

Description

technical field [0001] The invention belongs to the field of ceramics, and in particular relates to a photosensitive ceramic liquid used for photocuring 3D printing and a ceramic part prepared by using the ceramic liquid as a raw material. Background technique [0002] Traditional ceramic preparation techniques, such as slurry molding and dry pressing, are difficult to form near-net complex structures, and mechanical processing will damage the microstructure of the green body, which is time-consuming and laborious. The manufacturing principle of 3D printing additive molding makes it have the technical advantages of rapid prototyping and efficient production of complex structures, and is very suitable as a preparation method for special-shaped ceramics. [0003] The main application methods of 3D printing of ceramic materials are stereolithography (SLA), digital light processing (DLP), laser selective sintering (SLS), layered entity manufacturing (LOM), inkjet printing (IJP),...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/571C04B35/56C04B35/622B29C64/124B33Y10/00B33Y70/10
CPCB33Y10/00B33Y70/00B29C64/124C04B35/5603C04B35/571C04B35/622C04B2235/6562C04B2235/6567C04B2235/96
Inventor 郭安然贺翀马聪刘家臣杜海燕
Owner TIANJIN UNIV