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Jet type 3D-printing light curing material

A light-curing material and 3D printing technology, applied in the field of 3D printing, can solve the problems of high relative viscosity and high cost, achieve the effect of small volume shrinkage and good comprehensive mechanical properties of materials

Inactive Publication Date: 2016-12-14
SUZHOU BC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Among them, stereolithography technology has advantages that other molding technologies cannot match in terms of large objects, fineness, and rapid prototyping, but its cost is relatively high
In terms of 3D printing light-curing materials, the materials are required to have low viscosity, fast curing speed, high strength after curing, and moderate flexibility. However, due to the influence of their own molecular structure properties, the commonly used light-curing resins have relatively high relative viscosity. , need to be used with a large amount of diluent, relatively high cost

Method used

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  • Jet type 3D-printing light curing material
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  • Jet type 3D-printing light curing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 discloses a jet-type 3D printing light-curing material, and the material formulation in Example 1 is shown in Table 1.

[0024] Formulation table in the embodiment 1 of table 1

[0025] components

Embodiment 2

[0027] The formulation of the material in Example 2 is shown in Table 2.

[0028] Formulation table in table 2 embodiment 2

[0029]

[0030]

Embodiment 3

[0032] The material formulations disclosed in Example 3 are shown in Table 3.

[0033] Formulation table in the embodiment 3 of table 3

[0034] components

Content (parts by mass)

Polypropylene glycol diglycidyl ether diacrylate

90

Cycloaliphatic epoxy

55

1-Hydroxycyclohexylbenzophenone

2

Benzyl alcohol

5.5

Active Diluent Monomer

0.5

Auxiliary

5

[0035] Other embodiments are also designed, and oxetane is selected as the cationic monomer. It is verified by experiments that alicyclic epoxy and oxetane are respectively coordinated with benzyl alcohol, and their effects in the entire material formula are not much different. .

[0036] Among them, the above-mentioned polypropylene glycol diglycidyl ether diacrylate has a density of 1.16 g / cm at 25°C 3 , the viscosity is 1810mPs.s, in the process of 3D printing, the working temperature of the nozzle is 50-55°C, and the surface tension is 31.5-31.0mN / m; ...

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Abstract

The invention discloses a jet type 3D-printing light curing material. The formula of the material comprises 75 to 90 parts of polypropyleneglycol diglycidyl ether diacrylate, 30 to 55 parts of cationic monomers, 0.5 to 2 parts of initiators, 3 to 5.5 parts of accelerators, 0 to 0.5 part of an active diluent monomer and 0.5 to 5 parts of additives, in parts by weight, wherein the density of the polypropyleneglycol diglycidyl ether diacrylate is 1.16g / cm<2> at the temperature of 25 DEG C, and the viscosity of the polypropyleneglycol diglycidyl ether diacrylate is 1810mPs.s; during the 3D printing process of the polypropyleneglycol diglycidyl ether diacrylate, the nozzle working temperature is 50 to 55 DEG C, and the surface tension is 31.5 to 31.0mN / m; when the material is prepared, the accelerators are used after being added into the cationic monomers to be uniformly mixed, and the mass ratio of the cationic monomers to the accelerators is 10:1. The light curing material disclosed by the invention is relatively high in light curing speed, and the mechanical properties of the light-cured material are relatively good.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a jet-type 3D printing photocurable material. Background technique [0002] Three-dimensional rapid prototyping technology is a relatively popular technology in manufacturing technology. It is a stacked manufacturing technology. Its principle is to create objects by adding materials to objects layer by layer. It obtains the path, limitation and method of stacking through discrete, and forms a three-dimensional entity through the superposition of stacked materials, which is combined with a computer system to improve the efficiency and accuracy of rapid prototyping, which is in stark contrast to the traditional removal molding. Construction, approximate processing, slice processing, section processing, section superposition, post-processing, etc. [0003] Among them, the 3DP process adopts three-dimensional three-dimensional molding. The section of the part is printed on the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/08C08L63/00C08K5/05B33Y70/00
CPCC08L71/00B33Y70/00C08L63/00C08K5/05
Inventor 王智郭池黄祺梁园陈号徐军戴晨雨
Owner SUZHOU BC TECH
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