Photocurable non-transparent material for 3D printing, preparation method thereof, 3D printing product and 3D printer

A 3D printer and 3D printing technology, applied in the field of 3D printing, can solve the problems of poor material stability, blockage of print head nozzles, and easy sedimentation, and achieve the effect of good printing fluency, not easy to block, and good quality.

Active Publication Date: 2019-01-18
ZHUHAI SAILNER 3D TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the density of titanium dioxide is generally higher than that of other components in the material composition, it is prone to sedimentation, which in turn leads to poor stability of the material. Especially for 3D inkjet printing technology, the sedimentation of titanium dioxide can easily lead to printing The nozzle hole of the head is blocked, and the line is broken during the printing process, which not only affects the quality of the 3D printed product, but also increases the operation and maintenance cost of the 3D printer.

Method used

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  • Photocurable non-transparent material for 3D printing, preparation method thereof, 3D printing product and 3D printer
  • Photocurable non-transparent material for 3D printing, preparation method thereof, 3D printing product and 3D printer
  • Photocurable non-transparent material for 3D printing, preparation method thereof, 3D printing product and 3D printer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] This embodiment provides a photocurable non-transparent material for 3D printing, which has the following composition in Table 1:

[0086] Table 1

[0087]

[0088] The preparation method of the light-cured non-transparent material for 3D printing is as follows:

[0089] (1) All components except the photoinitiator are placed in a glass container, and agitator is used to stir to obtain a uniformly mixed first mixture; then add a photoinitiator to the first mixture, and continue to stir until the photoinitiator completely dissolved to obtain a second mixture;

[0090] (2) performing primary filtration on the second mixture with a 0.45 μm glass fiber membrane, and then performing secondary filtration with a 0.22 μm polypropylene membrane (PP membrane) to obtain a filtrate;

[0091] (3) Under the vacuum of 0.1 MPa, vacuum and suction filtration for 1 hour to remove air bubbles in the filtrate, and finally obtain a light-cured white material for 3D printing, and it is ...

Embodiment 2

[0093] This embodiment provides a photocurable non-transparent material for 3D printing, which has the composition of the following table 2:

[0094] Table 2

[0095]

[0096] The preparation method of the 3D printed photocurable non-transparent material in this example is basically the same as that in Example 1, except that the components used are replaced accordingly, and in step (3), the method of heating and degassing is adopted, and step (2) ) The obtained filtrate was heated to 40°C for degassing, and the degassing time was 50min.

[0097] In this example, a light-cured white material for 3D printing is obtained, and it is a completely opaque material.

Embodiment 3

[0099] This embodiment provides a photocurable non-transparent material for 3D printing, which has the following composition in Table 3:

[0100] table 3

[0101]

[0102] In this example, the preparation method of the 3D printed light-cured non-transparent material is basically the same as that in Example 1, except that the components used are replaced accordingly, and the specific time for decompression and degassing in step (3) is adjusted to 2 hours.

[0103] What is obtained in this example is a light-cured red opaque material for 3D printing.

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Abstract

The invention provides a photocurable non-transparent material for 3D printing, a preparation method thereof, a 3D printing product and a 3D printer. The photocurable non-transparent material for 3D printing comprises the following components in parts by weight: 30-70 parts of a first acrylate component, 20-60 parts of a second acrylate component, 0.5-5 parts of a photoinitiator, 0.5-8 parts of anauxiliary agent and 0-4 parts of a colorant, wherein the first acrylate component is a polar acrylate component; and the second acrylate component is selected from at least one of weakly polar and non-polar acrylate components. According to the photocurable non-transparent material for 3D printing provided by the invention, a 3D printing product can be made non-transparent without adding white pigments such as titanium dioxide, so that the photocurable non-transparent material for 3D printing has the characteristics of high stability, the smoothness in a 3D printing process is ensured, the 3Dprinting product has good quality, and the 3D printer containing the photocurable non-transparent material for 3D printing has good performance.

Description

technical field [0001] The invention relates to 3D printing technology, in particular to a light-cured non-transparent material for 3D printing and a preparation method thereof, a 3D printing product and a 3D printer. Background technique [0002] Materials (or inks) used in existing 3D printing technologies, such as 3D inkjet printing technology, light-curing three-dimensional modeling technology (SLA technology for short), digital light processing technology for projectors (DLP technology for short), etc., according to the printing test block The transparency of the material can be divided into two categories: transparent materials and non-transparent materials. The transparent materials include colorless transparent materials and colored transparent materials (referring to the colors prepared by the three primary colors C, M, and Y); the non-transparent materials include white materials and colored non-transparent materials. [0003] In practical applications, 3D printed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F220/58C08F220/10C08F2/44B29C64/20B29C64/112B33Y30/00B33Y10/00
CPCC08F2/44C08F220/18B29C64/112B29C64/20B33Y10/00B33Y30/00C08F220/585C08F220/10C08L33/10B29C64/314B33Y40/10B29C64/291B33Y70/10B33Y70/00B29K2033/08B29K2995/0025B29K2995/0082B29K2995/0089C08K5/1535C08K5/5415C08L2201/08
Inventor 王丽坤
Owner ZHUHAI SAILNER 3D TECH CO LTD
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