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UV adhesive for 3D printing mold casting molding, and uses thereof

A 3D printing and molding technology, applied in adhesives, non-polymer adhesive additives, non-polymer organic compound adhesives, etc., can solve the problems of time-consuming, complex process, labor-intensive, etc. The effect of reducing environmental pollution

Active Publication Date: 2016-03-16
SHENZHEN SAPIENCE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, jewelry and dental molds usually adopt the lost wax casting process, which is complicated, time-consuming and labor-intensive; the process flow is drawing-engraving-plastic mold-opening mold-wax injection-planting trees-lost wax casting-after Processing procedure

Method used

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  • UV adhesive for 3D printing mold casting molding, and uses thereof
  • UV adhesive for 3D printing mold casting molding, and uses thereof
  • UV adhesive for 3D printing mold casting molding, and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The UV adhesive used for 3D printing in this embodiment, the adhesive is 100% solid-containing viscous liquid, and the adhesive includes at least the following substances in weight ratio: polyolefin UV oligomer: 25-80%, polyol acrylate Monomer: 10-50%, initiator: (184, 369) 1-10%, oxygen inhibitor (allyloxymethacrylate) 1-15%. The polymerization product of polyolefin UV oligomer in this adhesive has excellent toughness and structural strength. In addition, initiators (184, 369) are specially added to this adhesive. This compound initiator can make the adhesive solidify quickly and accurately on the projection of 3D printing, and obtain the same model as the design drawing. In this embodiment, it is preferable to control the molecular weight of the above-mentioned polyolefin UV oligomer to: 15000-17000

[0022] Experiments have proved that when the molecular weight of polyolefin UV oligomer is in the above range, the structural strength and toughness can reach a more pe...

Embodiment 2

[0024] The difference between the adhesive of this embodiment and that of Embodiment 1 is that this adhesive further includes: a polyol acrylate monomer, and its weight ratio is 10-50%. The polyol structural monomer has low-temperature vaporization properties, and the addition of this component makes the cured adhesive easier to lose wax casting.

Embodiment 3

[0026] The difference between the adhesive of this embodiment and that of Embodiment 2 is that this adhesive also includes: an oxygen inhibitor (allyloxymethacrylate), and its weight ratio is 1-15%. Oxygen inhibitor prevents the adhesive from cross-linking in an aerobic environment. The addition of this component enables the adhesive to meet continuous ultraviolet light irradiation in addition to intermittent light 3D printers that use mercury lamps and 405nm LED lamps as light sources. 3D printing model.

[0027] The specific weight ratio of the adhesive of the present embodiment is shown in the table below:

[0028] formula Weight ratio Polyolefin UV Oligomer 25～80％ Polyol Acrylate Monomer 10～50％ UV photoinitiators (184, 369) 1～10％ Oxygen Inhibitor (Allyloxymethacrylate) 1～15％

[0029] In summary, using the adhesives of the above-mentioned embodiments, intermittent 3D printing with mercury lamps and 405nm LED lamps as light sources and...

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Abstract

The present invention discloses a UV adhesive for 3D printing mold casting molding, and uses thereof, wherein the adhesive comprises, by weight, 25-80% of a polyolefin UV oligomer, 10-50% of a polylol acrylate monomer, 1-10% of a photoinitiator, and 1-15% of an oxygen barrier agent. According to the present invention, with the application of the adhesive in jewelry manufacture and tooth mold casting, the adhesive can completely vaporize at a low temperature (600-700 DEG C) after the adhesive is subjected to light curing, the residual ash does not exist, and the precise and smooth mold cavity can be formed; and the adhesive can be used for 3D projection printing adopting a mercury lamp or 405 nm LED lamp as a light source, and can further meet the continuous light high-speed 3D printing.

Description

technical field [0001] The invention relates to the field of light-curing 3D printing, in particular to a UV adhesive for 3D printing casting molds and its application in jewelry and tooth casting molds. Background technique [0002] At present, jewelry and tooth casting molds usually adopt the lost wax casting process, which is complicated, time-consuming and labor-intensive; the process flow is drawing-engraving-plastic mold-opening mold-wax injection-tree planting-lost wax casting-after Processing procedure. [0003] The technological process of using this adhesive for jewelry and tooth casting molds is: drawing-3D printing-planting trees-lost wax casting-post-treatment process, which can save a lot of manpower and equipment costs, and the vaporization products of this adhesive are carbon dioxide and water. It is non-toxic to the human body and has no pollution to the environment, and the precision and smoothness of the mold cavity formed are better than the traditional ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/00C09J4/02C09J4/06C09J11/06B33Y70/00
Inventor 王继宝
Owner SHENZHEN SAPIENCE TECH CO LTD
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