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Photocurable material for 3D inkjet printing, and preparation method thereof, and printing method

A light-curing material and inkjet printing technology, applied in the chemical industry, additive processing, sustainable manufacturing/processing, etc., can solve the problems of affecting eyesight, difficult to print target 3D objects, uneven curing, etc., to achieve the best 3D The effect of inkjet printing effect

Active Publication Date: 2017-12-22
ZHUHAI SAILNER 3D TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above method of removing the support part, it is easy to damage the fine structure in the solid part by water impact or mechanical force, so it is difficult to print the target 3D object with fine structure; and the method of heating may heat the entire target 3D object damage, and because wax is solid at room temperature, the entire ink system needs to be heated and kept warm during the inkjet printing process. After the wax material is sprayed out, it must be cooled to make it solidify quickly, which is not conducive to Energy-saving requirements, there are also cases of uneven curing; removal in alkaline solution, because the lye is corrosive, may cause damage to the skin of the human body, accidentally splashing into the eyes will irritate the eyes and even affect vision, and the lye May corrode the target object itself and affect the accuracy of the target 3D object

Method used

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  • Photocurable material for 3D inkjet printing, and preparation method thereof, and printing method
  • Photocurable material for 3D inkjet printing, and preparation method thereof, and printing method
  • Photocurable material for 3D inkjet printing, and preparation method thereof, and printing method

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Experimental program
Comparison scheme
Effect test

Embodiment 1-8

[0056] See Table 1 for the composition and mass percentage of light-curing materials.

[0057] Preparation method of light curing material:

[0058] (1) Mixing monofunctional monomers, linear non-ionic water-soluble polymers, polar organic solvents, defoamers, leveling agents, and polymerization inhibitors to obtain a first mixture;

[0059] (2) Add a photoinitiator to the first mixture and mix to obtain a second mixture;

[0060] (3) The second mixture is subjected to two-stage filtration; wherein the first-stage filtration adopts a 0.45μm glass fiber membrane of Shanghai Haoqing Environmental Protection Technology Co., Ltd., and the second-stage filtration adopts Shanghai Yiling Filter Equipment Co., Ltd. A polypropylene membrane with a pore size of 0.2 μm, collect the filtrate to obtain the third mixture;

[0061] (4) The third mixture is first degassed at normal pressure for about 1 hour, and then degassed under reduced pressure at -0.05 to -0.1 atmospheres for about 1 hour to obta...

Embodiment 9

[0074] The composition and mass percentage of the light-curing material are the same as in Example 3, see Table 1.

[0075] Preparation method of light curing material:

[0076] (1) Mix the monofunctional monomer and the linear non-ionic water-soluble polymer, heat to about 60°C, stir, and place the linear non-ionic water-soluble polymer completely dispersed in the monofunctional monomer. To room temperature about 25°C, then add polar organic solvent, defoamer, leveling agent, polymerization inhibitor, use a stirrer to stir for about 3 hours, until the components are uniformly mixed to obtain the first mixture;

[0077] (2) Add a photoinitiator to the first mixture and continue to stir for about 2 hours until the components are evenly mixed to obtain a second mixture;

[0078] (3) Perform secondary filtration on the second mixture; wherein, the first stage filtration uses a glass fiber membrane with a pore size of 0.45 μm, and the second stage filtration uses a polypropylene membrane ...

Embodiment 10

[0082] A 3D inkjet printing method, wherein the supporting material used for 3D inkjet printing is the photocurable material described in any one of the above embodiments 1-8.

[0083] Inkjet printing is performed using a 3D printing device equipped with the above 3D inkjet printing material. reference figure 1 , The printed intermediate 3D object 1 is composed of a supporting part 3, a first physical part 2 and a second physical part 4, wherein the supporting part 3 is printed by the above light-curing material, the first physical part 2 and the second physical part 4The two parts of the target 3D object are integrated.

[0084] After the printing is completed, the intermediate 3D object 1 is placed in water, and the supporting part 3 is dispersed in the water and completely separated from the target 3D object (combination of the first physical part 2 and the second physical part 4), and finally the target 3D object is obtained.

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Abstract

The present invention relates to a photocurable material for 3D inkjet printing, and a preparation method thereof, and a printing method, wherein the photocurable material comprises, by weight, 50-98 parts of a monofunctional monomer, 1-50 parts of a linear nonionic water-soluble polymer, 0-20 parts of a polar organic solvent, 0.1-5 parts of a photoinitiator, and 0.5-10 parts of an auxiliary agent. According to the present invention, the photocurable material can be used for 3D inkjet printing so as to print the support part, wherein the support part can be removed in the water or the aqueous liquid so as not to affect the precision of the target 3D object; and the 3D printing method has advantages of simple in operation, energy saving, and no harm to human body.

Description

Technical field [0001] The invention provides a photocurable material for 3D inkjet printing and a preparation method of the photocurable material. The invention also provides a 3D inkjet printing method. Background technique [0002] 3D inkjet printing technology is based on the working principle of inkjet printers. Under the excitation of digital signals, the 3D inkjet printing ink in the nozzle chamber instantly forms droplets, which are ejected from the nozzles at a certain speed and frequency. Then, solidify and shape layer by layer according to the specified path to obtain the intermediate 3D object, and then remove the non-solid part according to the requirements, and finally obtain the target 3D object. [0003] According to the layer-by-layer production process of the intermediate 3D object, its structure can be divided into a solid part and a supporting part. Such as figure 1 As shown, the intermediate 3D object 1 has a first physical part 2, a second physical part 4, ...

Claims

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Application Information

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IPC IPC(8): C08F271/02C08F220/54C08F220/28C08F220/32C08F220/18C08F226/06B29C67/00B33Y10/00
CPCC08F261/04C08F271/02C08F283/06B33Y10/00C08F220/54C08F220/283C08F220/18C08F220/32Y02P20/10
Inventor 王风李嘉杨前程
Owner ZHUHAI SAILNER 3D TECH CO LTD
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