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Photocurable 3D printing material as well as preparation method and application thereof

A 3D printing and light curing 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 expensive SLA system, so as to shorten the curing time and achieve good printing stability , Improve the effect of printing efficiency

Active Publication Date: 2018-08-17
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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  • Photocurable 3D printing material as well as preparation method and application thereof
  • Photocurable 3D printing material as well as preparation method and application thereof
  • Photocurable 3D printing material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0037] The five photocurable 3D printing materials in this example are composed of the raw material components shown in Table 1 in parts by weight:

[0038] Table 1

[0039]

[0040] The above additives consist of 0.2 parts of polyether modified polydimethylsiloxane defoamer, 0.1 part of leveling agent polyacrylate, 0.1 part of titanate coupling agent, 0.2 part of alkyl ammonium carboxylate dispersant, It is composed of 2 parts of filler calcium carbonate and 0.5 part of color paste.

[0041] The preparation method of the above photocuring 3D printing material, the steps are as follows:

[0042] Weigh each raw material component by weight, sequentially add the photocurable reactive diluent, photoinitiator, thixotropic agent and auxiliary agent into the photocurable resin, mix uniformly in the reaction kettle, and then gradually heat up to 50 At -60°C, vacuumize to a negative pressure of 0.1 MPa at the same time, and disperse and stir for 1.5 hours under the condition of 1...

Embodiment 6-10

[0044] The five photocurable 3D printing materials in this example are composed of the raw material components shown in Table 2 in parts by weight:

[0045] Table 2

[0046]

[0047] The above additives consist of 0.2 parts of polyether modified polydimethylsiloxane defoamer, 0.1 part of leveling agent polyacrylate, 0.1 part of titanate coupling agent, 0.2 part of alkyl ammonium carboxylate dispersant, It is composed of 2 parts of filler calcium carbonate and 0.5 part of color paste.

[0048] The preparation method of the above-mentioned photocurable 3D printing material is similar to Example 1.

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Abstract

The invention relates to a photocurable 3D printing material as well as a preparation method and application thereof. The photocurable 3D printing material is prepared from the following raw materialcomponents in parts by weight: 20 to 80 parts of photocurable resin, 10 to 60 parts of photocurable active diluent, 1 to 10 parts of photo-initiator, 0.1 to 20 parts of thixotropic agent and 0.1 to 5parts of auxiliaries, wherein the thixotropic agent is at least one of attapulgite, montmorillonite, bentonite, fumed silica, polyamide wax and mica powder; the photocurable resin is at least one of aliphatic polyurethane and aliphatic epoxy resin. The photocurable 3D printing material has high thixotropy, and can be applied to the nozzle printing process of FDM (Fused Deposition Modeling). Compared with an SLA (Stereolithigraphy Apparatus), the photocurable 3D printing material has the advantages that the production cost of 3D printing products can be lowered effectively, high molding speed and high precision are achieved, complex-contour or large-sized 3D printing products can be made.

Description

technical field [0001] The invention relates to 3D printing materials, in particular to photocurable 3D printing materials and their preparation methods and applications. Background technique [0002] With the continuous development of 3D printing technology, 3D printing design has been able to cover military industry, automobile, biomedicine, electronic circuit and other fields. 3D printing technology is a relatively mature technology that covers many processes, such as fused deposition modeling (FDM) and stereolithography (SLA). [0003] FDM is to send solid raw materials into the melting nozzle, and then heat and melt in the nozzle. Under the control of the computer, the nozzle moves along the cross-sectional contour of the part and the filling trajectory, and sends the semi-fluid material to the designated position and finally solidifies into a finished product. This process is low in cost, has a wide range of optional materials, and has low pollution. It can produce la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/14C08L63/00C08L77/00C08L83/12C08L33/08C08K13/02C08K3/36C08K3/26B33Y70/00C08F283/00C08F283/10C08F222/20
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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