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A kind of thiol-ene photocurable resin for 3D printing and preparation method thereof

A 3D printing and curing resin technology, applied in the field of 3D printing, can solve problems such as hardness and other performance degradation, affect the performance of parts, prolong the production time and other problems, and achieve the effect of easy application

Active Publication Date: 2020-12-15
HANGZHOU LEYI NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These traditional photosensitive resins will shrink in volume during the photopolymerization process, which directly affects the performance of the part, leads to a decrease in adhesion, hardness and other properties, prolongs the production time, affects the precision of the part, and makes the oxygen barrier poly serious

Method used

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  • A kind of thiol-ene photocurable resin for 3D printing and preparation method thereof
  • A kind of thiol-ene photocurable resin for 3D printing and preparation method thereof
  • A kind of thiol-ene photocurable resin for 3D printing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A thiol-ene photocurable resin that can be applied to 3D printing, wherein the mass percentages of each component are: 13% of 1,4-benzenedimethanol, 12% of tetrakis (3-mercaptopropionic acid) pentaerythritol ester, Epoxy acrylate 15%, polyester acrylate 21%, dicyclopentadiene (meth) acrylate 20%, hydroxyethyl acrylate 10%, benzoin dimethyl ether 3%, nano silicon dioxide 5%, 2 -Hydroxy-4-methoxybenzophenone 0.1%, defoamer 0.2%, wetting and dispersing agent 0.3%, leveling agent 0.2%, KH-560 coupling agent 0.2%. The stirring temperature was 25°C, and the stirring time was 90 minutes.

Embodiment 2

[0033] A thiol-ene photocurable resin that can be applied to 3D printing, wherein the mass percentages of each component are: 20% of mercapto silicone oil, 6% of tetrakis (3-mercaptobutyric acid) pentaerythritol ester, 15% of polyether acrylic resin, Polyurethane acrylic resin 15%, 1,6-hexanediol diacrylate 30%, benzoin dimethyl ether 5%, nano core-shell rubber 8%, 2-hydroxy-4-methoxybenzophenone 0.1%, disinfectant Foaming agent 0.3%, wetting and dispersing agent 0.3%, leveling agent 0.3%. The stirring temperature was 30°C, and the stirring time was 60 minutes.

Embodiment 3

[0035] A thiol-ene photocurable resin that can be applied to 3D printing, wherein the mass percentages of each component are: 10% of 4,4'‐thiobisthiophenol, 12.85% of 2,4,6‐trimercaptotriazine %, polyester acrylate 20%, epoxy acrylate 15%, dipentaerythritol tetraacrylate 15%, 2-phenoxyethyl methacrylate 20%, 2‐hydroxy‐2‐methyl‐1‐benzene Base‐1‐acetone 4%, superfine calcium carbonate 2%, 2-hydroxy-4-methoxy-5-sulfonic acid benzophenone 0.2%, defoamer 0.3%, wetting and dispersing agent 0.3%, leveling Agent 0.3%, fluorescent whitening agent 0.05%. The stirring temperature was 40°C, and the stirring time was 90 minutes.

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Abstract

The invention relates to the technical field of 3D printing, in particular to a thiol-ene photocurable resin for 3D printing and a preparation method thereof. The thiol-ene photocurable resin for 3D printing is prepared from polythiol, acrylic resin prepolymer, reactive diluent, initiator, ultraviolet absorber, filler and auxiliary materials. In the presence of a photoinitiator, the chain transfer reaction between the double bond and the mercapto group makes the volume shrinkage of the polymer decrease in the presence of a photoinitiator. The monomer can control the degree of cross-linking and the speed of the reaction, the use of a small amount of photoinitiator and other advantages. The present invention can shorten the curing time, improve the toughness and hardness of the 3D printing material, improve the production efficiency, and greatly increase the energy utilization rate by introducing the thiol-ene click chemical reaction into the 3D printing resin.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a thiol-ene photocurable resin for 3D printing and a preparation method thereof. Background technique [0002] Thiol‐ene click chemistry vividly describes the chemical reaction process as simple, efficient, and practical as clicking a mouse. (3) The reaction conditions are simple and mild, and are hardly affected by the external environment (oxygen and water, etc.); (4) No solvent or the solvent used is easy to separate; (5) The yield is high and the product Good regularity; (6) The product separation and purification methods are simple. Click chemistry can use a series of efficient, reliable and selective C—S bonding reactions to realize atomic connection, and carry out modular preparation of new high-performance and functional polymers. This series of advantages makes it a linking tool in organic synthesis. , materials science, molecular biology and biotechnology, polymer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G75/045B33Y70/10
CPCC08F283/105C08F283/01C08F2/44C08F2/48C08F283/065C08F283/008C08F8/34B33Y70/10C08F220/40C08F220/281Y02P10/25
Inventor 张小敏陈遒应慧春李芳
Owner HANGZHOU LEYI NEW MATERIAL TECH CO LTD