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Visible light curable material for 3D printing, 3D printing apparatus, and product

A 3D printing and visible light technology, applied in the direction of additive processing, etc., can solve the problems of limited application range, safety and unsatisfactory production cost, etc., and achieve the effect of low viscosity, small shrinkage rate of solid products, and low production cost

Pending Publication Date: 2017-11-03
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the surge of 3D printing technology in recent years, the demand for photosensitive resins has increased significantly. At present, there are few mature photosensitive resins used for 3D printing in the domestic and foreign markets, and most of them use ultraviolet lasers as curing light sources. In terms of safety and The production cost is unsatisfactory, which limits its application range

Method used

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  • Visible light curable material for 3D printing, 3D printing apparatus, and product
  • Visible light curable material for 3D printing, 3D printing apparatus, and product
  • Visible light curable material for 3D printing, 3D printing apparatus, and product

Examples

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Effect test

preparation example Construction

[0056] As mentioned above, the present invention provides a kind of article and its preparation method, with figure 2 The shown 3D printing device is an example, and the preparation method of the product includes the following steps:

[0057] 1) Stir and mix 100 parts by weight of polymerizable monomer, 0.01-5 parts by weight of photoinitiator, 0-5 parts by weight of photoinitiator auxiliary, and 1-20 parts by weight of other functional auxiliary agents in a normal temperature environment Homogeneous, to obtain a homogeneous mixture;

[0058] 2) The mixture obtained in step 1) is sent from the container to the nozzle through the infusion device of the above-mentioned 3D printing device, and the mixture ejected from the nozzle is cured under the irradiation of the laser or monochromatic visible light source.

[0059] Wherein, the step 2) specifically includes: sending the mixture obtained in step 1) into the nozzle through the infusion device of the above-mentioned 3D printin...

Embodiment 1

[0063] 1) With 30 parts by weight of bisphenol A epoxy acrylate (E-51), 70 parts by weight of methyl methacrylate (MMA), 0.1 parts by weight of camphorquinone (CQ), 0.1 parts by weight of triethyl Amine, 5 parts by weight of micron calcium carbonate powder, and 1 part by weight of lead chrome yellow are stirred and mixed uniformly in a normal temperature environment to obtain a homogeneous mixture;

[0064] 2) the mixture obtained in step 1) is passed through the figure 2The infusion device of the shown 3D printing device is sent into the nozzle, and the nozzle moves according to the preset trajectory under the control of the computer. Curing under the radiation of the light source, stacking layer by layer, forming, and making the article of the present invention.

[0065] The material used for 3D printing in this embodiment (that is, the homogeneous mixture) has low viscosity (about 220cps, normal temperature), fast curing speed (about 2 seconds for surface solidification t...

Embodiment 2

[0068] 1) the urethane acrylate of 70 parts by weight, the trimethylolpropane trimethacrylate (TMPTMA) of 30 parts by weight, the fluorinated diphenyl titanocene of 0.1 part by weight, the nano-carbon powder of 5 parts by weight, 1 part by weight of chrome red is stirred and mixed evenly in a normal temperature environment to obtain a homogeneous mixture;

[0069] 2) the mixture obtained in step 1) is passed through the figure 2 The infusion device of the 3D printing device shown is fed into the nozzle, and the nozzle moves according to the preset trajectory under the control of the computer, and at the same time, the nozzle continuously and constantly ejects the mixture, and the mixture is in the 470nm LED blue color of the 3D printing device of the present invention. Curing under the radiation of a laser light source, stacking layer by layer, and forming, the article of the invention is obtained.

[0070] The material used for 3D printing in this embodiment (that is, the h...

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Abstract

The present invention discloses a material for 3D printing, a 3D printing apparatus using the material, and a product and a preparation method thereof, wherein the material comprise, by weight, 100 parts of a polymerizable monomer being an oligomer and / or a diluent monomer, 0.01-5 parts of a photoinitiator, 0-5 parts of a photoinitiator aid, and 1-20 parts of other functional aids, wherein the photoinitiator is one or a plurality of compounds selected from a quinone compound, a titanocene compound, an iodonium salt compound, a sulfonium salt compound and a triazine compound, and the compounds have activity under the radiation of laser or monochrome visible light having a visible light waveband of 415-780 nm. According to the present invention, the used light source has advantages of safety, low cost and the like compared to the commonly used ultraviolet radiation light source; and the printing material used by the method under the normal state is the liquid, has the adjustable viscosity, and has advantages of high printing precision, fast molding, high mechanical strength of the printed product, and the like.

Description

technical field [0001] The invention relates to a material for 3D printing and a 3D printing device and a part using the material, in particular to a visible light curing material for 3D printing and a 3D printing device and a part using the material. Background technique [0002] As an emerging rapid prototyping (Rapid Prototyping Manufacturing) technology, 3D printing (3D Printing), with its unique manufacturing advantages, has been greatly favored by various fields and is known as the symbol of the third industrial revolution. 3D printing is based on the principle of material discrete / accumulation, based on the computer three-dimensional design model, using laser sintering, heating melting and light curing to control materials such as metal, ceramic powder or polymer resin through computer digital software programs, and accumulate them layer by layer. Solidified and molded to create a physical product. This technology has the advantages of short molding time, low cost, a...

Claims

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Application Information

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IPC IPC(8): C08F283/10C08F220/14C08F283/00C08F222/14C08F120/32C08F122/14C08K3/26C08K3/04C08K3/22C08K3/34C08L63/00B33Y70/00B29C67/00B33Y30/00
CPCC08F120/32C08F283/006C08F283/10C08K3/04C08K3/22C08K3/26C08K3/346B33Y30/00B33Y70/00C08L2201/08C08K2003/265C08K2003/2275C08K2003/2227C08F122/1006C08F220/14C08L63/00C08F222/103
Inventor 崔可建李屹张京楠赵宁徐坚董金勇李春成符文鑫郭洪霞林学春刘瑞刚马永梅孙文华
Owner INST OF CHEM CHINESE ACAD OF SCI
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