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High-toughness hybrid 3D printing light-cured resin and preparation method thereof

A light-curing resin, 3D printing technology, applied in the field of 3D printing, can solve the problems of easy breaking, not resistant to falling, not resistant to impact, etc., to prevent color damage, improve the anti-fall performance, and reduce shrinkage.

Pending Publication Date: 2021-12-31
南京君智拓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

[0005] Aiming at the deficiencies of the prior art, the present invention provides a high-toughness hybrid 3D printing light-curing resin and its preparation method, which solves the defects of conventional 3D printing light-curing resins that are easy to break, not resistant to impact, and not resistant to falling. Therefore, it is subject to certain restrictions when it is widely used, and it cannot meet people's requirements.

Method used

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  • High-toughness hybrid 3D printing light-cured resin and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] refer to figure 1 , a high-toughness hybrid 3D printing photocurable resin, its formula includes: 46 parts of monofunctional acrylate, 19 parts of difunctional reactive diluent, 11 parts of rigid polysiloxane, 1.4 parts of photoinitiator, organic dye 2.8 parts, 0.9 parts of additives.

[0032] Monofunctional acrylates in the present invention include hydroxypropyl acrylate, hydroxybutyl acrylate, isobornyl acrylate, isobornyl methacrylate, acryloyl morpholine, N,N-dimethylacrylamide, cyclotrimethylol 2-Acrylic acid (2-ethyl-2-methyl-1,3- Two or more of dioxan-4-yl) methyl esters, the monofunctional acrylate is a combination of acryloylmorpholine and cyclotrimethylolpropane methylal acrylate with a mass ratio of 1:4 The mixture, the structure in the monofunctional acrylate can reinforce or increase the cohesion of the resin, so that the resin has a certain strength and flexibility after curing. The cured material after resin curing has high mechanical properties, makin...

Embodiment 2

[0041] refer to figure 1 , a high-toughness hybrid 3D printing photocurable resin, its formula includes: 60 parts of monofunctional acrylate, 30 parts of bifunctional reactive diluent, 15 parts of rigid polysiloxane, 2.5 parts of photoinitiator, organic dye 3 parts, 2 parts of additives.

[0042] Monofunctional acrylates in the present invention include hydroxypropyl acrylate, hydroxybutyl acrylate, isobornyl acrylate, isobornyl methacrylate, acryloyl morpholine, N,N-dimethylacrylamide, cyclotrimethylol 2-Acrylic acid (2-ethyl-2-methyl-1,3- Two or more of dioxan-4-yl) methyl esters, the monofunctional acrylate is a combination of acryloylmorpholine and cyclotrimethylolpropane methylal acrylate with a mass ratio of 1:4 The mixture, the structure in the monofunctional acrylate can reinforce or increase the cohesion of the resin, so that the resin has a certain strength and flexibility after curing. The cured material after resin curing has high mechanical properties, making up...

Embodiment 3

[0051] refer to figure 1 , a high-toughness hybrid 3D printing photocurable resin, its formula includes: 70 parts of monofunctional acrylate, 40 parts of difunctional reactive diluent, 16 parts of rigid polysiloxane, 5 parts of photoinitiator, organic dye 4 parts, 3 parts of additives.

[0052] Monofunctional acrylates in the present invention include hydroxypropyl acrylate, hydroxybutyl acrylate, isobornyl acrylate, isobornyl methacrylate, acryloyl morpholine, N,N-dimethylacrylamide, cyclotrimethylol 2-Acrylic acid (2-ethyl-2-methyl-1,3- Two or more of dioxan-4-yl) methyl esters, the monofunctional acrylate is a combination of acryloylmorpholine and cyclotrimethylolpropane methylal acrylate with a mass ratio of 1:4 The mixture, the structure in the monofunctional acrylate can reinforce or increase the cohesion of the resin, so that the resin has a certain strength and flexibility after curing. The cured material after resin curing has high mechanical properties, making up f...

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Abstract

The invention relates to the technical field of 3D printing, and discloses a high-toughness hybrid 3D printing light-cured resin. The high-toughness hybrid 3D printing light-cured resin is prepared from, by weight, 45 to 75 parts of monofunctional acrylate, 18 to 45 parts of a bifunctional reactive diluent, 10 to 18 parts of rigid polysiloxane, 1.2 to 5.8 parts of a photoinitiator, 2.5 to 4.6 parts of an organic dye, and 0.1 to 4.5 parts of an auxiliary agent. The invention also discloses a preparation method of the high-toughness hybrid 3D printing light-cured resin. The preparation method comprises the following steps: S1, preparing a stock solution: pouring the photoinitiator and the organic dye into a container, mixing, and heating and stirring to obtain a stock solution. According to the invention, the resin has higher toughness through the monofunctional acrylate, and meanwhile, the shrinkage of the light-cured resin in the curing process can be effectively reduced through the rigid polysiloxane, so that the mechanical property is improved.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a high-toughness hybrid 3D printing photocurable resin and a preparation method thereof. Background technique [0002] The discovery of photocurable resins has gone through the stage of using natural resins to the stage of artificial synthetic resins, and the application field has also developed from photographic cardboard technology to photolithography technology. In recent years, with the development of science and technology, photocurable resins have not only stepped up in some traditional applications Further deepening, and new application areas are also expanding, such as 3D printing rapid prototyping technology. [0003] 3D printing light-curing resin has excellent properties and can be widely used in the production of prototypes such as automobiles, medical equipment, electronic production films and architectural models. It is widely used in people's lives, but convent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/12C08F220/58C08F220/28C08F2/44C08F2/42C08K5/132C08K5/3475B33Y70/10
CPCC08F283/12C08F2/44C08F2/42C08K5/132C08K5/3475B33Y70/10C08F220/58C08F220/282
Inventor 张勇于坤狄建强
Owner 南京君智拓新材料科技有限公司
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