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Light-curing 3D printing material and its preparation method and application

A 3D printing and photocuring technology, applied in the field of 3D printing materials, can solve the problems of limited strength and stiffness of 3D printing products, difficulty in applying large 3D printing products, and high cost of SLA system, so as to achieve shortening curing time and good printing stability , Improve the effect of printing efficiency

Active Publication Date: 2021-06-08
广州有得新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has high molding precision and fast speed, but the SLA system is expensive, and the use and maintenance costs are too high. The strength and stiffness of printed products are limited

Method used

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  • Light-curing 3D printing material and its preparation method and application
  • Light-curing 3D printing material and its preparation method and application
  • Light-curing 3D printing material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0037] In this first embodiment, the photocurable 3D printing material is composed of a weight meter, which is composed of the raw material components shown in Table 1:

[0038] Table 1

[0039]

[0040] The above additive is 0.2 parts of antifoam polyether modified polydimethylsiloxane, 0.1 parts of the leveling agent polyacrylate, 0.1 parts of the titanate coupling agent, and 0.2 copolycarboxylate dispersants, 2 copies of calcium carbonate, 0.5 parts of color paste.

[0041] The preparation method of the above light curing 3D printing material is as follows:

[0042] The respective raw material components were weighed by weight, and the photocurable active diluent, photoinitiator, thixotropic, auxiliary agent, a photoinitiator, auxiliary agent, auxiliary agent were sequentially added, and mixed in the reaction kettle, then gradually warmed to 50 -60 ° C, simultaneously evacuated to a negative pressure 0.1 MPa, under 1000-2200 rpm, dispersion for 1.5 hours; cooling, filtration,...

Embodiment 6-10

[0044] In this first embodiment, the light curing 3D printing material is composed of the material component shown in Table 2:

[0045] Table 2

[0046]

[0047] The above additive is 0.2 parts of antifoam polyether modified polydimethylsiloxane, 0.1 parts of the leveling agent polyacrylate, 0.1 parts of the titanate coupling agent, and 0.2 copolycarboxylate dispersants, 2 copies of calcium carbonate, 0.5 parts of color paste.

[0048] The method of preparing the above light curing 3D printing material is similar to Embodiment 1.

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Abstract

The invention relates to a light-cured 3D printing material and its preparation method and application. The photocurable 3D printing material includes the following raw material components in parts by weight: 20-80 parts of photocurable resin, 10-60 parts of photocurable reactive diluent, 1-10 parts of photoinitiator, and 0.1-20 parts of thixotropic agent part, 0.1-5 parts of auxiliary agent; wherein, the thixotropic agent is at least one of attapulgite, montmorillonite, bentonite, fumed silica, polyamide wax, mica powder; the photocurable resin is At least one of aliphatic polyurethane and alicyclic epoxy resin. The light-curing 3D printing material has excellent thixotropy and can be applied to the FDM nozzle printing process. Compared with SLA, it can effectively reduce the production cost of 3D printing products, and has fast molding speed and high precision, and can perform complex contours or large-scale 3D printing. The production of products.

Description

Technical field [0001] The present invention relates to a 3D printing material, and more particularly to a photocurable 3D printing material and a preparation method thereof. Background technique [0002] With the continuous development of 3D printing technology, 3D printing is capable of covering military, automotive, biomedical, electronic circuits and other fields. 3D printing technology is a relatively mature technique, covering a number of processes, more commonly used, such as melt deposition molding (FDM), photocuring molding (SLA), and the like. [0003] The FDM is fed to the molten head of the solid feedstock, and then heats up in the nozzle, and the spray head is moved along the part section profile and the fill trajectory, and finally solidify into a finished product. The cost is low, the optional material is wide, and the pollution is small, and the production of large 3D print products can be made, but the molding time is long, the accuracy is low, and the support ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/14C08L63/00C08L77/00C08L83/12C08L33/08C08K13/02C08K3/36C08K3/26B33Y70/10C08F283/00C08F283/10C08F222/20
CPCB33Y70/00C08F283/008C08F283/10C08K2003/265C08L75/14C08L2205/035C08L63/00C08L77/00C08L83/12C08L33/08C08K13/02C08K3/36C08K3/26C08F222/103
Inventor 谢荣政
Owner 广州有得新材料科技有限公司
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