Ultraviolet light curing high-hardness material used for 3D printing and preparation method of high-hardness material

A 3D printing and ultraviolet light technology, applied in the field of 3D printing materials, can solve the problems of ultraviolet curing high hardness materials that have not been reported, and achieve the effects of high light transmittance, wide application and high tensile strength

Active Publication Date: 2018-08-17
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned patents solve some problems of UV-curable materials for 3D printing, and obtain photo-curable materials with excellent performance, but there are no relevant reports on UV-curable high-hardness materials for 3D printing

Method used

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  • Ultraviolet light curing high-hardness material used for 3D printing and preparation method of high-hardness material
  • Ultraviolet light curing high-hardness material used for 3D printing and preparation method of high-hardness material
  • Ultraviolet light curing high-hardness material used for 3D printing and preparation method of high-hardness material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] A 3D printing UV-curable high-hardness material, in parts by weight, at least includes the following components:

[0073]

[0074] Wherein, the functionality of the high-functionality epoxy acrylate (DR-G908) is 6, the functionality of the hyperbranched polyester acrylate (DR-E522) is 15-18, and the thinner diethylene diacrylate The addition ratio of alcohol dimethacrylate (EM329) to trimethylolpropane triacrylate (EM231) is 0.6:1.

[0075] Mix and heat DR-G908, DR-E522, EM329, EM231, nano-silica, BYK-110, 55% BYK-065, EFKA-3030, silanol non-ionic surfactant, sodium hypophosphite, and stir The speed is 2800rad / min, after uniform dispersion, add 1-hydroxycyclohexyl benzophenone, continue to stir, the stirring speed is 2500rad / min, add the remaining BYK-065 after the system is uniformly dispersed, continue stirring, the stirring speed is 1150rad / min min until the system is uniform and free of air bubbles, and then stored at low temperature and protected from light.

Embodiment 2

[0077] A 3D printing UV-curable high-hardness material, in parts by weight, at least includes the following components:

[0078]

[0079] Wherein, the functionality of the high-functionality epoxy acrylate (DR-G908) is 6, the functionality of the hyperbranched polyester acrylate (DR-E522) is 15-18, and the thinner diethylene diacrylate The addition ratio of alcohol dimethacrylate (EM329) to trimethylolpropane triacrylate (EM231) is 0.6:1.

[0080] Mix and heat DR-G908, DR-E522, EM329, EM231, nano-silica, BYK-110, 55% BYK-065, EFKA-3030, silanol non-ionic surfactant, sodium hypophosphite, and stir The speed is 2800rad / min, after uniform dispersion, add 1-hydroxycyclohexyl benzophenone, continue to stir, the stirring speed is 2500rad / min, add the remaining BYK-065 after the system is uniformly dispersed, continue stirring, the stirring speed is 1150rad / min min until the system is uniform and free of air bubbles, and then stored at low temperature and protected from light.

Embodiment 3

[0082] A 3D printing UV-curable high-hardness material, in parts by weight, at least includes the following components:

[0083]

[0084]

[0085] Wherein, the functionality of the high-functionality epoxy acrylate (DR-G908) is 6, the functionality of the hyperbranched polyester acrylate (DR-E522) is 15-18, and the thinner diethylene diacrylate The addition ratio of alcohol dimethacrylate (EM329) to trimethylolpropane triacrylate (EM231) is 0.6:1.

[0086]Mix and heat DR-G908, DR-E522, EM329, EM231, nano-silica, BYK-110, 55% BYK-065, EFKA-3030, silanol non-ionic surfactant, sodium hypophosphite, and stir The speed is 2800rad / min, after uniform dispersion, add 1-hydroxycyclohexyl benzophenone, continue to stir, the stirring speed is 2500rad / min, add the remaining BYK-065 after the system is uniformly dispersed, continue stirring, the stirring speed is 1150rad / min min until the system is uniform and free of air bubbles, and then stored at low temperature and protected fro...

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Abstract

The invention relates to the field of 3D printing materials, and in particular relates to an ultraviolet light curing high-hardness material used for 3D printing and a preparation method of the high-hardness material. The high-hardness material at least comprises the following components in parts by weight: 30-70 parts of an oligomer, 10-30 parts of a diluent, 2-5 parts of a photoinitiator, 5-10 parts of a filler, 0.1-1 part of an antifoaming agent, and 1-5 parts of other functional auxiliary agents. Compared with a conventional ultraviolet light curing material for the 3D printing, the 3D printing material provided by the invention can reach hardness of 78 Shore D or more, can reach maximum hardness of 90 Shore D, and has excellent properties such as high hardness, high tensile strength and high light transmittance, so that the 3D printing material provided by the invention has very broad application prospects, and can be widely used in various fields such as automobile industry, aerospace, mechanical parts, household appliances and electronic devices.

Description

technical field [0001] The invention relates to the field of 3D printing materials, in particular to an ultraviolet light-cured high-hardness material for 3D printing and a preparation method thereof. Background technique [0002] 3D printing is also called additive manufacturing technology or rapid prototyping (RP). A technique for constructing three-dimensional objects. 3D printing materials are the material basis of 3D printing, and they are also the bottleneck restricting the development of 3D printing. The UV-curable material for 3D printing is photosensitive resin, which is generally composed of polymer monomers and prepolymers, and a photo (UV) initiator is added to it, which can immediately cause UV light (250-300nm) irradiation of a certain wavelength. After the polymerization reaction is completed and solidified, it is a 3D printing material that is developing rapidly at present. However, at present, domestic research on photosensitive resins is relatively scatt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/10C08F283/01C08F222/14C08K3/36C08K3/22B33Y70/00
CPCB33Y70/00C08F283/01C08F283/105C08K3/22C08K3/36C08K2003/2227C08K2003/2241C08K2003/2244C08K2201/003C08K2201/011C08F222/103
Inventor 任天斌闫晓琦罗顺
Owner TONGJI UNIV
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