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

Photosensitive material for 3D printing and preparation method thereof

A photosensitive material and 3D printing technology, applied in the field of photosensitive materials, can solve the problems of insufficient resin toughness, poor impact resistance, single variety, etc., and achieve the effects of fast curing speed, excellent bending performance, and good storage stability

Inactive Publication Date: 2020-12-04
河源然生新材料有限公司
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is a single variety of photosensitive resins used in 3D printers in China, mainly resins with high hardness, but this type of resin has the disadvantages of insufficient toughness, poor impact resistance, and fragility. a new research direction

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A photosensitive material for 3D printing, by parts by weight, comprising the following components:

[0019] Acrylic resin 25 parts;

[0020] 65 parts of active diluent;

[0021] 10 parts of toughening agent;

[0022] 5 parts of photoinitiator;

[0023] Auxiliary 0.1 parts.

[0024] The acrylic resin is modified epoxy acrylate.

[0025] The reactive diluent is a 3:3:1 mixture of tripropylene glycol diacrylate, trimethylolpropane triacrylate, and hydroxyethyl methacrylate.

[0026] The toughening agent is a 1:1 mixture of 3-ethyl-3-oxetanemethanol and 3-methyl-3-hydroxymethyloxetane.

[0027] The photoinitiator is 4-phenylbenzophenone.

[0028] The auxiliary agent is TEGO Airex945.

[0029] The preparation of the UV light-curable photosensitive material in this example can be carried out according to the process commonly used in the field. The above materials are weighed by weight, stirred with a disperser for 30 minutes to disperse evenly, and the temperature is ...

Embodiment 2

[0031] A photosensitive material for 3D printing, by parts by weight, comprising the following components:

[0032] Acrylic resin 15 parts;

[0033] 75 parts of active diluent;

[0034] 10 parts of toughening agent;

[0035] 4 parts of photoinitiator;

[0036] Auxiliary 0.1 parts;

[0037] The acrylic resin is polyurethane acrylate.

[0038] The reactive diluent is a mixture of tripropylene glycol diacrylate, hexanediol diacrylate, bisphenol A diacrylate, tetraethylene glycol diacrylate and trimethylolpropane triacrylate.

[0039] The toughening agent is a 2:1 mixture of 3-ethyl-3-oxetanemethanol and 3-methyl-3-hydroxymethyloxetane.

[0040] The photoinitiator is α-dimethyl-α-hydroxyacetophenone.

[0041] The auxiliary agent is TEGO Airex910.

[0042] The preparation of the UV light-curable photosensitive material in this example can be carried out according to the process commonly used in the field. The above materials are weighed by weight, stirred with a disperser fo...

Embodiment 3

[0044] A photosensitive material for 3D printing, by parts by weight, comprising the following components:

[0045] Acrylic resin 25 parts;

[0046] 60 parts of active diluent;

[0047] 15 parts of toughening agent;

[0048] 3.5 parts of photoinitiator;

[0049] Auxiliary 0.1 parts;

[0050] The acrylic resin is polyester acrylate.

[0051] The reactive diluent is a mixture of vinylpyrrolidone and diethylene glycol divinyl ether.

[0052] The toughening agent is a 3:1 mixture of 3-ethyl-3-oxetanemethanol and 3-methyl-3-hydroxymethyloxetane.

[0053] The photoinitiator is 2-thioxanthone chloride and isopropylthioxanthone.

[0054] The auxiliary agent is TEGO Airex920.

[0055] The preparation of the UV light-curable photosensitive material in this example can be carried out according to the process commonly used in this field. The above materials are weighed by weight, stirred with a disperser for 38 minutes to disperse evenly, and the temperature is controlled at 58°C t...

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 discloses a photosensitive material for 3D printing and a preparation method thereof. The photosensitive material is prepared from, by weight, 10-25 parts of acrylic resin, 60-75 parts of a reactive diluent, 10-20 parts of a flexibilizer, 1-5 parts of a photoinitiator and 0.05-0.1 part of an assistant, and the acrylic resin, the reactive diluent, the flexibilizer and the photoinitiator are weighed according to preset parts by weight, the preparation method comprises the following steps: putting the raw materials into a dispersion machine, mixing, stirring, uniformly dispersing for 20-40 minutes, and controlling the temperature to be 40-60 DEG C in the stirring process, thereby obtaining the UV light-cured photosensitive material. The photosensitive material prepared by the invention has the advantages of high curing speed, good product storage stability, difficulty in deformation of a printed large model and excellent bending performance, can be used for directly printingan elastic model, and is suitable for DLP rapid prototyping desktop-level 3D printing equipment.

Description

technical field [0001] The invention relates to a photosensitive material, in particular to a UV photocurable photosensitive material used for DLP rapid prototyping desktop-level 3D printing equipment and a preparation method thereof. Background technique [0002] The 3D printing technologies using photosensitive resin as printing materials mainly include: stereolithography (Stereolithography, SLA), DLP projection three-dimensional printing process (Digital Light Processing, DLP) and ultra-thin layer thick photosensitive resin injection molding technology (Connex500 system Objet Geometries Corporation). The printing process is to determine the three-dimensional model in the computer, and then deliver it to the 3D printer. The printing process uses ultraviolet light to irradiate the liquid photosensitive resin, and the layers are stacked and formed. [0003] The photosensitive resin used for 3D printing needs to be cured quickly under the exposure conditions of the 3D printe...

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): C08F283/00C08F283/01C08F283/10C08F222/20C08F222/14C08F226/10C08F216/18B33Y70/00
CPCC08F283/008C08F283/01C08F283/105B33Y70/00
Inventor 欧龙生许李繁邹名超
Owner 河源然生新材料有限公司
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