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Mercaptan-alkene light-cured resin for 3D printing and preparation method of mercaptan-alkene light-cured resin for 3D printing

A light-curing resin, 3D printing technology, applied in the field of 3D printing, can solve the problems of hardness and other performance degradation, polymerization inhibition, affecting the accuracy of parts, etc., to achieve the effect of easy application

Active Publication Date: 2018-01-30
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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  • Mercaptan-alkene light-cured resin for 3D printing and preparation method of mercaptan-alkene light-cured resin for 3D printing
  • Mercaptan-alkene light-cured resin for 3D printing and preparation method of mercaptan-alkene light-cured resin for 3D printing
  • Mercaptan-alkene light-cured resin for 3D printing and preparation method of mercaptan-alkene light-cured resin for 3D printing

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 is 30°C, and the stirring time is 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 mercaptan-alkene light-cured resin for 3D printing and a preparation method of the mercaptan-alkene light-cured resin for3D printing. The mercaptan-alkene light-cured resin for 3D printing is prepared from multi-mercaptan, an acrylic resin prepolymer, a reactive diluent, an initiator, an ultraviolet absorbent, a fillerand an auxiliary raw material. According to the 3D printing light-cured resin, under the existence of a photoinitiator, during printing polymerization forming, a chain transfer reaction between doublebonds and sulfydryl occurs to reduce the volume of a polymer, so that the mercaptan-alkene light-cured resin has the advantages that oxygen-free polymerization inhibition is realized, the crosslinking degree and the reaction speed can be controlled according to different vinyl monomers, and a small number of the photoinitiators are used. By introduction of mercaptan-alkene click reaction into the3D printing resin, the curing time can be shortened, the toughness and the hardness of a 3D printing material can be improved, the production efficiency is improved, and the energy utilization rate is greatly increased.

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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IPC IPC(8): C08G75/045B33Y70/00
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
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