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Photosensitive resin used in light-curing 3d printers

A 3D printer and photosensitive resin technology, applied in the direction of additive processing, etc., can solve the problems of low tensile strength, yellowing, etc., and achieve the effect of improving comprehensive performance, preventing yellowing, and improving mechanical quality

Active Publication Date: 2021-07-30
深圳市金石三维打印科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 3D printing, the performance of UV-curable photosensitive resins for 3D printing directly affects the performance of printed products. Currently, commonly used UV-curable photosensitive resins for 3D printing include photoinitiators, photosensitive preforms, photoreactive active monomers, and others. Auxiliary, the tensile strength of UV-curable photosensitive resin for 3D printing is low, only 30-40MPa, and the printed product will turn yellow in less than one month, which cannot meet the actual needs

Method used

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  • Photosensitive resin used in light-curing 3d printers
  • Photosensitive resin used in light-curing 3d printers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The photosensitive resin used by photocuring 3D printers includes the following raw materials corresponding to parts by weight:

[0029] 80 parts of photopreform, 35 parts of active monomer, 4 parts of photoinitiator, 1 part of enhancing additive, and 1 part of auxiliary agent.

[0030] The optical preform is composed of the following substances corresponding to the weight parts:

[0031] 35 parts bisphenol A type epoxy acrylic resin, 8 parts bisphenol A type epoxy resin, 6 parts aliphatic epoxy resin.

[0032] Active monomer is made up of following material of corresponding weight part:

[0033] 20 parts propoxylated neopentyl glycol diacrylate, 25 parts propoxylated glycerol triacrylate.

[0034] The photoinitiator is 1-hydroxycyclohexylbenzophenone.

[0035] Auxiliaries are made up of the following materials corresponding to parts by weight:

[0036] 0.5 parts of defoamer, 3 parts of dispersant, 5 parts of plasticizer.

[0037] The preparation method of reinforc...

Embodiment 2

[0046] The photosensitive resin used by photocuring 3D printers includes the following raw materials corresponding to parts by weight:

[0047] 83 parts of photopreforms, 40 parts of reactive monomers, 6 parts of photoinitiators, 1.5 parts of reinforcing additives, and 1.3 parts of auxiliary agents.

[0048] The optical preform is composed of the following substances corresponding to the weight parts:

[0049] 38 parts bisphenol A type epoxy acrylic resin, 10 parts bisphenol A type epoxy resin, 8 parts aliphatic epoxy resin.

[0050] Active monomer is made up of following material of corresponding weight part:

[0051] 22 parts propoxylated neopentyl glycol diacrylate, 27 parts propoxylated glycerol triacrylate.

[0052] The photoinitiator is 1-hydroxycyclohexylbenzophenone.

[0053] Auxiliaries are made up of the following materials corresponding to parts by weight:

[0054] 0.8 parts of defoamer, 5 parts of dispersant, 7 parts of plasticizer.

[0055] The preparation me...

Embodiment 3

[0064] The photosensitive resin used by photocuring 3D printers includes the following raw materials corresponding to parts by weight:

[0065] 85 parts of photopreforms, 45 parts of reactive monomers, 7 parts of photoinitiators, 2 parts of reinforcing additives, and 1.5 parts of auxiliary agents.

[0066] The optical preform is composed of the following substances corresponding to the weight parts:

[0067] 40 parts bisphenol A type epoxy acrylic resin, 12 parts bisphenol A type epoxy resin, 9 parts aliphatic epoxy resin.

[0068] Active monomer is made up of following material of corresponding weight part:

[0069] 25 parts propoxylated neopentyl glycol diacrylate, 30 parts propoxylated glycerol triacrylate.

[0070] The photoinitiator is 1-hydroxycyclohexylbenzophenone.

[0071] Auxiliaries are made up of the following materials corresponding to parts by weight:

[0072] 1 part defoamer, 6 parts dispersant, 8 parts plasticizer.

[0073] The preparation method of reinfo...

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Abstract

The invention discloses a photosensitive resin used in a photocurable 3D printer, which belongs to the technical field of chemical materials for photocurable 3D printing, and includes the following raw materials in corresponding parts by weight: 80-85 parts of photopreform, 35-45 parts of active monomer, 4 ~7 parts of photoinitiator, 1~2 parts of strengthening additive, 1~1.5 parts of auxiliary agent. The invention optimizes and improves the components of the photosensitive resin used in the photocuring 3D printer, and the finally obtained photosensitive resin has strong mechanical quality, corrosion resistance and weather resistance, etc.

Description

technical field [0001] The invention belongs to the technical field of chemical materials for photocuring 3D printing, in particular to photosensitive resins used in photocuring 3D printers. Background technique [0002] Light-curing 3D printing rapid prototyping (SLA) is a technology that uses photosensitive resins to undergo polymerization reactions under the irradiation of ultraviolet light of a certain wavelength, thereby curing and molding. In 3D printing, the performance of UV-curable photosensitive resins for 3D printing directly affects the performance of printed products. Currently, commonly used UV-curable photosensitive resins for 3D printing include photoinitiators, photosensitive preforms, photoreactive active monomers, and others. Auxiliary, UV-curable photosensitive resin for 3D printing has low tensile strength, only 30-40MPa, and the printed product will turn yellow in less than one month, which cannot meet the actual needs. Contents of the invention [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/10C08F222/20C08F2/48C08K9/04C08K9/02C08K7/26C08K3/22B33Y70/10
Inventor 谢安琼吴震黄一山杨红九吴杰华杨华杰
Owner 深圳市金石三维打印科技有限公司