Pretreated dual-curing 3D printing resin and pretreatment method thereof

A 3D printing and dual curing technology, which is applied in the field of 3D printing, can solve the problems of poor mechanical properties, poor curing performance, and failure to achieve it, and achieve excellent mechanical properties, avoid huge troughs, and achieve good curing performance.

Pending Publication Date: 2021-04-06
深圳市匠和新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] China CN201310498194.8 discloses a kind of light-curing 3D printing hybrid system photosensitive resin, including the following mass ratio of raw material components: oligomer A, oligomer B and acrylates in a mass percentage of 50:15:35 The mixture accounts for 70%-90% of the total mass of active components; the reactive diluent accounts for 10%-30% of the total mass of active components; oligomer A, oligomer B and acrylates are 50:15 by mass: The total mass of the mixture of 35 and active diluent is 100%; additives: cationic initiators account for 1-10% of the total mass of active components, free radical initiators account for 1%-6% of the total mass of active com

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Epoxy acrylate 39g,

[0022] Cationic monomer GR-OX-1 18g,

[0023] OXE-10 15g,

[0024] NPG(PO)2DA 11.5g,

[0025] Aryldiazonium salt 2.5g,

[0026] Omnicat550 1g,

[0027] Photoinitiator 184 5g,

[0028] Jiuri Omnicat550 5g,

[0029] MOK-2120 2g,

[0030] BYK-066N 1g

[0031] 100g total.

[0032] Under the condition of temperature ≤ 30°C, stir 100g of pre-treated dual-curing 3D printing resin (the above-mentioned raw materials) at a low speed of 500r / min, and apply an external DC weak electric field of 50A / m 2 , and lasted for 10 minutes to obtain the pre-treated dual-curing 3D printing resin. The pre-treated proportioning material was transferred to the DLP-3D printer, and the temperature of the printer module was raised to 35 ° C, and then the 2 ) 405nm ultraviolet light to irradiate and print, and then test its performance according to the following evaluation method.

Embodiment 2

[0034] Polyester Acrylate 41g,

[0035] Cationic monomer GR-OX-4 16g,

[0036] 6270 14g,

[0037] Tridecyl Acrylate 11.5g,

[0038] Diaryliodonium salt 2.5g,

[0039] Omnicat550 1g,

[0040] Photoinitiator TPO 5g,

[0041] Jiuri Omnicat550 5g,

[0042] BYK-333 2.5g,

[0043] BYK-3510 1.5g,

[0044] Total 100g

[0045] Under the condition of temperature ≤ 30°C, stir 100g of pretreated dual-curing 3D printing resin at a low speed of 500r / min, and apply an external DC weak electric field of 30A / m 2 , lasted for 10min, transferred the pre-treated proportioning material to the DLP-3D printer, the temperature of the printer module was raised to 40°C, and then passed through low energy (18mw / cm 2 ) 405nm ultraviolet light to irradiate and print, and then test its performance according to the following evaluation method.

Embodiment 3

[0047] Epoxy Acrylate 42g,

[0048] Cationic monomer GR-OX-8 16g,

[0049] 6278 15g,

[0050] THFA 13.5g,

[0051] Triarylsulfide 2.5g,

[0052] Omnicat550 1g,

[0053] Photoinitiator TPO 2g,

[0054] Omnicat650 5g,

[0055] MOK-2120 2g,

[0056] BYK-066N 1g,

[0057] Total 100g

[0058] Under the condition of temperature ≤30°C, stir 100g of pretreated dual-curing 3D printing resin at a low speed of 500r / min, and apply an external DC weak electric field of 45A / m 2, lasted for 10min, transferred the pre-treated proportioning material to the DLP-3D printer, the temperature of the printer module was raised to 42°C, and then passed through low energy (18mw / cm 2 ) 385nm ultraviolet light to irradiate and print, and then test its performance according to the following evaluation method.

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PUM

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Abstract

The invention discloses pretreated dual-curing 3D printing resin and a pretreatment method thereof. The resin comprises the following raw material components in percentage by weight: 19%-78% of oligomer, 1%-9% of radical initiator, 0.5%-5% of cationic initiator, 0.5%-5% of hybrid curing photoinitiator, 0.2%-4% of aid, 10%-35% of reactive diluent, 13%-62% of cationic monomer and 5%-20% of hybrid monomer, wherein the sum of the weight percentages of the components is 100%. The printing effect comparable with that of a high-energy SLA sunken 3D printer is obtained, the shrinkage rate is low, the curing performance is good, the mechanical property is excellent, color changing is convenient, and the problems that a sunken printer trough is huge, the needed resin amount is large, and the humidity control requirement is high are solved.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a pretreatment dual-curing 3D printing resin and a pretreatment method thereof. Background technique [0002] With the popularization of 3D printing technology, DLP / SLA 3D printing technology is being used more and more, and more and more requirements are put forward for the physical properties of 3D printing products. Photocuring 3D printing technology is a new type of material that has emerged in recent years. The processing and forming method is based on the three-dimensional model, and the method of directly printing the solid model by adding materials layer by layer. This technology can print out personalized parts with diverse shapes and appearances without making molds, which greatly simplifies the production process of products. [0003] China CN201310498194.8 discloses a kind of light-curing 3D printing hybrid system photosensitive resin, including the following mas...

Claims

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Application Information

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IPC IPC(8): C08F283/10C08F283/01C08F283/06C08F283/08C08F283/12B33Y70/00
CPCC08F283/105C08F283/01C08F283/065C08F283/008C08F283/12B33Y70/00
Inventor 林世妥肖国悦焦鑫
Owner 深圳市匠和新材料有限公司
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