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Composition for 3D ink-jet printing supporting structure and preparation method thereof

A support structure, inkjet printing technology, applied in the direction of 3D object support structure, manufacturing tools, additive manufacturing, etc., can solve problems such as the influence of dissolution rate, and achieve the goal of increasing support strength, improving the conversion rate of photocuring reaction, and improving the dissolution rate. Effect

Active Publication Date: 2020-04-14
ZHUHAI SAILNER 3D TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the molecular structure of the second water-miscible curable material contains unsaturated double bonds, the double bonds will also participate in the photocuring reaction during the photocuring reaction. The dissolution rate in the

Method used

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  • Composition for 3D ink-jet printing supporting structure and preparation method thereof
  • Composition for 3D ink-jet printing supporting structure and preparation method thereof
  • Composition for 3D ink-jet printing supporting structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] This embodiment provides a composition for 3D inkjet printing support structure, which has the composition of the following table 2:

[0066] The composition of the composition for 3D inkjet printing support structure in the embodiment 1 of table 2

[0067]

[0068]

[0069] The preparation method of the composition for the 3D inkjet printing support structure is as follows:

[0070] (1) Put all the ingredients except the photoinitiator in a glass container, and stir with a stirrer to obtain a uniformly mixed first mixture; then add the photoinitiator to the first mixture, and continue to stir until the photoinitiator is completely Dissolving to obtain a second mixture;

[0071] (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;

[0072] (3) Under a vacuum degree of 0.1 MPa, filter under reduced pressure for 1 hou...

Embodiment 2

[0074] This embodiment provides a composition for 3D inkjet printing support structure, which has the composition of the following table 3:

[0075] The composition of the composition for 3D inkjet printing support structure in the embodiment 2 of table 3

[0076]

[0077]The preparation method of the composition for 3D inkjet printing support structure in this example is basically the same as that of Example 1, except that the components used are replaced accordingly, and in the step (3) of the preparation method, the method of heating and degassing is adopted. The filtrate obtained in step (2) was heated to 40° C. for degassing treatment, and the degassing time was 50 minutes.

Embodiment 3

[0079] This embodiment provides a composition for 3D inkjet printing support structure, which has the composition of the following table 4:

[0080] The composition of the composition for 3D inkjet printing support structure in the embodiment 3 of table 4

[0081]

[0082]

[0083] The preparation method of the composition for 3D inkjet printing support structure in this example is basically the same as that of Example 1, except that the components used are replaced accordingly, and in step (3) of the preparation method, the specific time for decompression and degassing is adjusted to 2 hours.

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Abstract

The invention provides a composition for a 3D ink-jet printing supporting structure and a preparation method of the composition. The composition comprises the following components in parts by weight:18-40 parts of a photo-curable main material, 2-30 parts of a functional reaction promoting material, a non-curable water-miscible material, a photo-initiator and an auxiliary agent, wherein the molecular structure of the functional reaction promoting material contains carboxyl and active hydrogen, and the active hydrogen can react with peroxide free radicals. The invention also provides a preparation method of the composition. The composition provided by the invention has the advantages that the photo-curing reaction conversion rate is obviously improved, and the photo-curing product also hasobviously improved dissolution rate in an alkaline solution while the support strength is increased.

Description

technical field [0001] The invention relates to a printing composition and a preparation method thereof, in particular to a 3D inkjet printing support structure composition and a preparation method thereof. Background technique [0002] In the process of 3D inkjet printing, for example, when printing an object with a suspended structure, the suspended part under the suspended structure of the object needs to print a support structure so that the target object can be formed; after the target object is formed, the support structure needs to be moved from the target object In addition to without affecting the surface accuracy of the target object; therefore, the support structure needs to have sufficient mechanical strength to support the target object, and at the same time be easy to remove from the target object. [0003] The types of existing support materials can be divided into: support materials removed by mechanical force, water-soluble support materials, water-swellable...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/02C08L51/08C08K5/09C08K5/053C08K5/06C08K5/3467C08K5/1515B29C64/112B29C64/20B29C64/40B33Y10/00B33Y30/00B33Y40/00B33Y70/00
CPCC08L71/02C08L51/08B29C64/112B29C64/20B29C64/40B33Y10/00B33Y30/00B33Y40/00B33Y70/00C08L2205/025C08L2205/03C08K5/09C08K5/053C08K5/06C08K5/3467C08K5/1515C08K5/092C08F220/286C09D4/00C08L33/14C09D11/38C09D11/101C08F220/58C08F222/1063C08F220/20C08F220/54C08F220/325C08F222/103
Inventor 余嘉杨前程
Owner ZHUHAI SAILNER 3D TECH CO LTD
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