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

Photocuring auxiliary direct-writing 3D printed silicone rubber ink, preparation method thereof and silicone rubber of three-dimensional structure

A 3D printing and three-dimensional structure technology, applied in the direction of additive processing, etc., can solve the problems of no PDMS forming and 3D printing.

Active Publication Date: 2019-05-28
烟台润创工业科技有限公司
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, none of the PDMS silicone rubber systems currently on the market can meet the requirements of 3D printing, so there is currently no report on the application of this technology in PDMS molding.

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
  • Photocuring auxiliary direct-writing 3D printed silicone rubber ink, preparation method thereof and silicone rubber of three-dimensional structure
  • Photocuring auxiliary direct-writing 3D printed silicone rubber ink, preparation method thereof and silicone rubber of three-dimensional structure
  • Photocuring auxiliary direct-writing 3D printed silicone rubber ink, preparation method thereof and silicone rubber of three-dimensional structure

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0037] The present invention also provides a preparation method for photocuring assisted direct writing 3D printing silicone rubber ink described in the above scheme, comprising the following steps:

[0038] Mix PDMS silicone rubber, photoinitiator, trimethylolpropane triacrylate, ethoxylated pentaerythritol tetraacrylate and photosensitive silicone rubber to obtain photocuring-assisted direct writing 3D printing silicone rubber ink.

[0039] In the present invention, the order of mixing is preferably:

[0040] (1) photoinitiator, trimethylolpropane triacrylate and ethoxylated pentaerythritol tetraacrylate are mixed to obtain a photoinitiating system;

[0041] (2) Mixing the photoinitiating system and photosensitive silicone rubber to obtain a photosensitive system;

[0042] (3) Mixing the photosensitive system and the PDMS silicone rubber to obtain photocuring-assisted direct writing 3D printing silicone rubber ink.

[0043] In the present invention, the mixing in the step ...

Embodiment 1

[0054] In parts by weight, the silicone rubber ink in the present embodiment consists of the following components:

[0055] 80 parts of Dow Corning SYLGARD184 PDMS silicone rubber, 0.5 parts of photoinitiator IRGACURE 819, 1.5 parts of trimethylolpropane triacrylate (TMPTA), 2 parts of ethoxylated pentaerythritol tetraacrylate (PPTTA), 16 parts of photosensitive silicone rubber, The viscosity of photosensitive silicone rubber is 2000-3000 cSt. The photosensitive silicone rubber is a copolymer of methyl acetoxypropyl methyl siloxane and dimethyl siloxane, purchased from Henan Geike Technology Co., Ltd.

[0056] Add IRGACURE 819 to the mixture of TMPTA and PPTTA and disperse in low temperature and avoid light until the solution is uniform and transparent to obtain a photoinitiating system; add the photoinitiating system to the photosensitive silicone rubber and stir mechanically until it is uniformly dispersed to obtain a photosensitive system; Mix A and B components of SYLGARD...

Embodiment 2

[0058] In parts by weight, the silicone rubber ink in the present embodiment consists of the following components:

[0059] 75 parts of Dow Corning SYLGARD184 PDMS silicone rubber, 1 part of photoinitiator IRGACURE 819, 2 parts of trimethylolpropane triacrylate (TMPTA), 2 parts of ethoxylated pentaerythritol tetraacrylate (PPTTA), 20 parts of photosensitive silicone rubber, The viscosity of photosensitive silicone rubber is 2000-3000 cSt. The photosensitive silicone rubber is a copolymer of methyl acetoxypropyl methyl siloxane and dimethyl siloxane, purchased from Henan Geike Technology Co., Ltd.

[0060] The preparation method of silicone rubber ink ink is identical with embodiment 1.

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
wavelengthaaaaaaaaaa
strengthaaaaaaaaaa
wavelengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of photocuring elastomers, and provides photocuring auxiliary direct-writing 3D printed silicone rubber ink. The photocuring auxiliary direct-writing 3D printed silicone rubber ink is prepared from the following components in parts by weight: 70-90 parts of PDMS silicone rubber, 0.5-2 parts of a photoinitiator, 1-2 parts of trimethylolpropane triacrylate, 1-2 parts of ethoxylated pentaerythritol tetraacrylate, and 10-30 parts of photosensitive silicone rubber. The silicone rubber ink has appropriate viscosity and excellent photocuring performance, and 3D printing of the PDMS silicone rubber of the complex structure can be achieved. The invention provides a preparation method of the silicone rubber ink. The preparation method is simple in step and easy tooperate. The invention further provides silicone rubber of a three-dimensional structure. The silicone rubber ink is subjected to photocuring auxiliary direct-writing 3D printing and then subjected toheat treatment, and thus the silicone rubber of the three-dimensional structure can be obtained. The silicone rubber of the three-dimensional structure can be of any complex structure, and is high inmechanical strength, and good in elasticity and scalability performance.

Description

technical field [0001] The invention relates to the technical field of light-curing elastomers, in particular to a light-curing assisted direct writing 3D printing silicone rubber ink, a preparation method thereof, and a three-dimensional structured silicone rubber. Background technique [0002] Poly(dimethylsiloxane) (PDMS) has excellent physiochemical properties and is an extremely important material for various prototyping and is widely used in various fields of biomedicine, physical chemistry and almost every engineering discipline. [0003] However, currently PDMS molding is a manual procedure that requires tedious assembly steps, especially 3D structure design, thus limiting its practicality. PDMS microdevices are traditionally fabricated using soft lithography and its derivatives, a technique based on manual procedures including micromolding, alignment and bonding of two-dimensional layers (Annu.Rev.Mater.Sci.1998,28,153-184 ), the steps of this method are very cumbe...

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 Applications(China)
IPC IPC(8): C08L83/04C08L83/06B33Y70/00
Inventor 张晓琴王晓龙郭玉雄蒋盼麻拴红周峰
Owner 烟台润创工业科技有限公司
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