3D (three dimensional) print light-cured resin composition and preparation method thereof

A light-curing resin and 3D printing technology, which is applied in the direction of epoxy resin coating, coating, polyester coating, etc., can solve the problems of toughness, warpage, heat resistance defects, and high price, so as to improve the mechanical strength, Improving the effect of flexibility, hardness and moderate flexibility

Inactive Publication Date: 2016-05-04
SHENZHEN SILMAC NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, 3D printing light-curing materials are scarce and expensive. The general 3D printing ma

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 3D printing photocurable resin, mainly composed of the following raw materials in parts by weight: 20 parts of carboxyl-containing epoxy acrylate, 20 parts of aliphatic urethane acrylate, 2 parts of photocuring reactive diluent, 1 part of photocuring agent, heat curing agent 1 part, α-Al 2 o 3 2 parts, 0.1 part of auxiliary agent.

[0031] The degree of unsaturation of the carboxyl-containing epoxy acrylate is 2, which is epoxy acrylic resin.

[0032] The aliphatic urethane acrylate is a straight-chain urethane acrylic resin with a hydroxyl value of 4.

[0033] The photocurable reactive diluent is alkoxylated pentaerythritol tetraacrylate.

[0034] The photocuring agent is dicumyl peroxide.

[0035] The thermal curing agent A is isocyanate deblocked at 90°C.

[0036] The α-Al 2 o 3 The particle size is 0.5 μm.

[0037] Further, the auxiliary agent is composed of 0.025 parts of defoaming agent, 0.01 part of leveling agent, 0.03 part of coupling agent and 0.025 pa...

Embodiment 2

[0040] 3D printing photocurable resin, mainly composed of the following raw materials in parts by weight: 70 parts of carboxyl-containing epoxy acrylate, 70 parts of aliphatic urethane acrylate, 20 parts of photocuring reactive diluent, 20 parts of photocuring agent, heat curing agent 20 parts, α-Al 2 o 3 10 parts, 1 part of auxiliary agent.

[0041] The degree of unsaturation of the carboxyl-containing epoxy acrylate is 6, which is polyester acrylic resin.

[0042] The aliphatic urethane acrylate is a branched urethane acrylic resin with a hydroxyl value of 8.

[0043] The photocurable reactive diluent is vinyl ether.

[0044] The photocuring agent is 1-hydroxyl-cyclohexylbenzophenone.

[0045]The thermosetting agent A is dicyandiamide.

[0046] The α-Al 2 o 3 The particle size is 2 μm.

[0047] The auxiliary agent is composed of 0.25 part of defoamer, 0.25 part of leveling agent, 0.25 part of coupling agent and 0.25 part of dispersant.

[0048] The preparation metho...

Embodiment 3

[0050] 3D printing photocurable resin, mainly composed of the following raw materials in parts by weight: 25 parts of carboxyl-containing epoxy acrylate, 28 parts of aliphatic urethane acrylate, 3 parts of photocuring reactive diluent, 5 parts of photocuring agent, heat curing agent 4 parts, α-Al 2 o 3 5 parts, 0.2 parts of additives

[0051] The degree of unsaturation of the carboxyl-containing epoxy acrylate is 3, which is polyurethane acrylic resin.

[0052] The aliphatic urethane acrylate is a straight-chain urethane acrylic resin with a hydroxyl value of 5.

[0053] The photocurable reactive diluent consists of 1.5 parts of alkoxylated pentaerythritol tetraacrylate and 1.5 parts of vinyl ether.

[0054] The photocuring agent is composed of 1 part of dicumyl peroxide, 1 part of 1-hydroxy-cyclohexyl benzophenone and 1 part of 2,4,6-trimethylbenzoyl-diphenylphosphine oxide.

[0055] The thermosetting agent A is dicyandiamide.

[0056] The α-Al 2 o 3 The particle size ...

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Abstract

The invention discloses 3D (three dimensional) print light-cured resin, and belongs to the technical field of new materials. The light-cured resin is prepared from 20 to 70 parts of carboxyl-containing epoxy acrylate, 20 to 70 parts of aliphatic polyurethane acrylate, 2 to 20 parts of light curing reactive diluent, 1 to 20 parts of light curing agent, 1 to 20 parts of heat curing agent, 2 to 10 parts of alpha-Al2O3 and 0.1 to 1 part of assistant. The invention also provides a preparation method of the 3D print light-cured resin. The resin provided by the invention is quick in light curing speed, can be quickly formed and processed, is moderate in hardness and flexibility, and can be cured completely. Defects in the aspects of toughness, wrapping property, heat resistance and the like of light-cured resin in the prior art are overcome. According to the resin and the preparation method thereof, the carboxyl-containing epoxy acrylate is selected for reacting to improve mechanical strength in post curing; by adding the aliphatic polyurethane acrylate, the flexibility can be improved; two components are introduced, so the light curing efficiency and finished product mechanical property are improved at the same time.

Description

technical field [0001] The invention relates to a 3D printing photocurable resin composition and a preparation method thereof. Background technique [0002] In the 21st century where innovation is the mission, new technologies and new products have always attracted attention. As an important direction of "Made in China 2025", 3D printing technology has also attracted more and more attention from all walks of life. 3D printing technology is divided into laser sintering, UV curing, etc., and can print almost all materials: ABS (acrylonitrile-butadiene-styrene), PLA (polylactic acid), metal powder, fiber, soil, liquid resin, etc., 3D The field of printing design covers military industry, automobile, biomedicine, electronic circuit, etc. 3D printing technology is a relatively mature technology, which consists of three aspects: software, hardware, and materials. The first two aspects are relatively mature, and the material aspect is a difficulty that needs to be solved urgently....

Claims

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Application Information

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IPC IPC(8): C09D163/10C09D175/14C09D167/06C09D7/12
CPCC08L2201/08C08L2205/025C08L2205/035C09D163/10C09D167/06C09D175/14C09D7/61C08L75/14C08K2003/2227C08L63/10C08L67/06
Inventor 赵曦王连建张红艳田然王沙生
Owner SHENZHEN SILMAC NEW MATERIAL
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