High-temperature-resistant photo-curing material for 3D ink-jet printing, preparation method thereof, 3D printed product and 3D printer

A light-curing material and inkjet printing technology, applied in the field of 3D printing, can solve the problems of low viscosity, low temperature resistance, and restrictions on the application of light-curing materials, and achieve the goals of increasing temperature, highlighting impact resistance, and enhancing mechanical properties Effect

Active Publication Date: 2019-04-09
ZHUHAI SAILNER 3D TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Compared with SLA technology and DLP technology, 3D inkjet printing technology has higher requirements on the viscosity and fluency of the photo-curing material used. The viscosity of normal jetting, such as 8-15cp, especially when the normal working temperature of the print head is lower than 80°C, requires that the viscosity of the light-curing material can drop to the viscosity suitable for normal jetting in an instant, which requires the light-curing material to be It has a low viscosity at room temperature of 25°C, such as less than 100cp; and photocurable materials with lower viscosity at room temperature usually have a lower glass transition temperature Tg, generally 40-60°C, which causes photocurable materials to be exposed to radiation under radiation. The temperature resistance of solid products formed after curing is not high, and the heat distortion temperature is difficult to exceed 60°C, which limits the application of photocurable materials in the field of 3D inkjet printing technology

Method used

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  • High-temperature-resistant photo-curing material for 3D ink-jet printing, preparation method thereof, 3D printed product and 3D printer
  • High-temperature-resistant photo-curing material for 3D ink-jet printing, preparation method thereof, 3D printed product and 3D printer
  • High-temperature-resistant photo-curing material for 3D ink-jet printing, preparation method thereof, 3D printed product and 3D printer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] This embodiment provides a high temperature resistant photocurable material for 3D inkjet printing, which has the composition of the following table 1:

[0085] Composition of high temperature resistant photocurable material for 3D inkjet printing in Table 1 Example 1

[0086]

[0087] The preparation method of the high-temperature photocurable material for 3D inkjet printing is as follows:

[0088] (1) All components except the free radical photoinitiator are placed in a glass container, and stirred with a stirrer to obtain a uniformly mixed first mixture; then add the free radical photoinitiator to the first mixture and continue stirring until the free radical photoinitiator is completely dissolved to obtain the second mixture;

[0089] (2) Carry out primary filtration to the second mixture with a 0.6 μm glass fiber membrane, and then perform secondary filtration with a 0.2 μm polypropylene membrane (PP membrane) to obtain a filtrate;

[0090] (3) Under a vacuum ...

Embodiment 2

[0092] This embodiment provides a high-temperature photocurable material for 3D inkjet printing, which has the composition of the following table 2:

[0093] Composition of high temperature resistant photocurable material for 3D inkjet printing in Table 2 Example 2

[0094]

[0095] The preparation method of the high-temperature photocurable material for 3D inkjet printing in this example is basically the same as in Example 1, except that the components used are replaced accordingly, and in step (3), the method of heating and degassing is adopted. (2) The obtained filtrate was heated to 40° C. for degassing treatment, and the degassing time was 50 minutes.

[0096] The high-temperature photocurable material for 3D inkjet printing obtained in this embodiment is a transparent material.

Embodiment 3

[0098] This embodiment provides a high temperature resistant photocurable material for 3D inkjet printing, which has the composition of the following table 3:

[0099] Composition of high temperature resistant photocurable material for 3D inkjet printing in Table 3 Example 3

[0100]

[0101] The preparation method of the high-temperature photocurable material for 3D inkjet printing in this embodiment is basically the same as that in Embodiment 1, except that the components used are replaced accordingly, and in step (3), the specific time for decompression and degassing is adjusted to 2 Hour. The high temperature resistant photocurable material for 3D inkjet printing obtained in this embodiment is a red material.

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Abstract

The invention provides a high-temperature-resistant photo-curing material for 3D ink-jet printing, a preparation method thereof, a 3D printed product and a 3D printer, and relates to the technology of3D printing. The high-temperature-resistant photo-curing material is prepared from the following components in parts by weight: 60-99 parts of a first vinyl compound, 0-39 parts of a second vinyl compound and 0.5-4 parts of free radical photo-initiator, wherein the first vinyl compound has a non-reactive cyclic structure which does not have the photopolymerization property under initiation of thefree radical photo-initiator; and the second vinyl compound does not have the non-reactive cyclic structure, and the number of methylene on the main chain is not less than 3. The photo-curing material can perform normal ink-jet printing at a relatively low temperature, and the high temperature resistance can be remarkably improved on the premise of ensuring the impact strength, so that a high-quality 3D printed product can be obtained, and the service life of a 3D printer can be prolonged.

Description

technical field [0001] The invention relates to 3D printing technology, in particular to a high-temperature-resistant photocurable material for 3D inkjet printing, a preparation method thereof, a 3D printing product and a 3D printer. Background technique [0002] Existing three-dimensional molding technologies using photocurable materials mainly include: Stereolithography Appearance (SLA) technology, Digital Light Processing (Digital Light Processing, DLP) technology and 3D inkjet printing technology. [0003] The main working principle of SLA technology is: the resin tank is filled with photocurable materials for three-dimensional molding containing liquid photosensitive resin. The ultraviolet laser beam scans along the liquid surface according to the requirements of the cross-sectional profile, and the liquid photosensitive resin in the scanned area is cured in the order from point to line and from line to surface, so as to obtain a resin sheet with the cross-sectional pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/10C08F283/01C08F283/00C08F220/36C08F220/34C08F220/18C08F220/32C08F222/14C08F2/48B29C64/106B29C64/20B33Y30/00B33Y70/00
CPCC08F2/48C08F220/18C08F220/32C08F220/34C08F220/36C08F222/1006C08F283/008C08F283/01C08F283/105B29C64/106B29C64/20B33Y30/00B33Y70/00C08F220/1811C08F222/102C08F2/50B29C64/112B33Y10/00C08F222/1067C08F220/58C08F220/282C09D4/00C08F220/301C08F222/1065
Inventor 杨银波杨前程
Owner ZHUHAI SAILNER 3D TECH CO LTD
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