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Urushiol resin for three-dimensional printing and preparation method thereof

A urushiol resin, three-dimensional printing technology, applied in the direction of additive processing, etc., can solve the problems of difficult to apply three-dimensional printing of lacquerware, and the curing time cannot be shortened.

Active Publication Date: 2018-09-28
MINJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current UV radiation polymerization technology of urushiol is difficult to be applied to the 3D printing of lacquerware because the curing time cannot be shortened to within 1-2 minutes.

Method used

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  • Urushiol resin for three-dimensional printing and preparation method thereof
  • Urushiol resin for three-dimensional printing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Urushiol resin and 1,3-pentadiene are mixed with a mass ratio of 100:20, and the photoinitiator 2-hydroxyl-2-methyl-1-phenylacetone of 1% of the total mass of the two is added and stirred evenly, namely Obtain the urushiol resin for 3D printing; coat the urushiol resin for 3D printing on tinplate (thickness 100μm), under 380nm ultraviolet light (100μW / cm 2 ) irradiation, the urushiol resin can be cross-linked and cured within 20s, the cross-linking degree is 91.8%, and the bending performance of the resin film reaches 5mm without cracks. Printed into splines with a 3D printer, the molding shrinkage of the splines is 0.4%.

Embodiment 2

[0024] Urushiol formal and 1,3-pentadiene were mixed at a mass ratio of 100:1, and a photoinitiator 2-methyl-2-(4-morpholinyl)-1- Stir [4-(methylthio)phenyl]-1-acetone evenly to obtain urushiol resin for 3D printing; coat the urushiol resin for 3D printing on tinplate (thickness is 100 μm), under 380nm ultraviolet light ( 100μW / cm 2 ) irradiation, the urushiol resin can be cross-linked and cured within 60s, the cross-linking degree is 90.1%, and the bending performance of the resin film reaches 5mm without cracks. Print the splines with a 3D printer, and the molding shrinkage of the splines is 0.5%.

Embodiment 3

[0026] Mix urushiol crown ether and 1,4-hexadiene with a mass ratio of 100:20, and add 1% of the total mass of the two photoinitiators 2,4,6-trimethylbenzoyl-diphenyl oxidation Stir the phosphine evenly to obtain the urushiol resin for 3D printing; coat the urushiol resin for 3D printing on tinplate (thickness 100μm), and use 380nm ultraviolet light (100μW / cm 2 ) irradiation, the urushiol resin can be cross-linked and cured within 25s, the cross-linking degree is 88.3%, and the bending performance of the resin film reaches 3mm without cracks. Print the splines with a 3D printer, and the molding shrinkage of the splines is 0.5%.

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Abstract

The invention relates to an urushiol resin for three-dimensional printing and a preparation method thereof. The preparation method comprises the following steps: mixing the urushiol resin or an urushiol derivative and a diene monomer according to a mass ratio of 100:1-100:50, adding a photoinitiator which is 1% of the total mass of the both parties, and uniformly stirring, to obtain the urushiol resin for the three-dimensional printing. The urushiol resin for the three-dimensional printing is capable of, under the irradiation of ultraviolet light, and through controlling the types and dosagesof the diene monomer, changing the basic physical properties of the resin and the content of a carbon-carbon double bond (C=C), namely fine-adjusting the using performance of the resin through the types of the diene monomer, and realizing the controllable free radical cross-linking polymerization of the urushiol resin through controlling the content of a free radical. The urushiol resin for the three-dimensional printing is suitable for multiple photocuring three-dimensional printing technologies, and suitable for the field of manufacturing lacquerware artware, such as a bodiless lacquer.

Description

technical field [0001] The invention belongs to the field of three-dimensional printing resins, and in particular relates to an urushiol resin for three-dimensional printing and a preparation method thereof. Background technique [0002] Lacquerware is exquisite in craftsmanship and rich in culture, especially in modern bodiless lacquerware, which is not only a treasure of Chinese lacquer art. However, with the change of the times, the shortcomings of lacquerware, such as complicated craftsmanship and high price, have become prominent, the market demand has been greatly reduced, and the industrial development has encountered a bottleneck. [0003] Natural lacquer is the main raw material of Chinese lacquerware. Urushiol, the main component of lacquer, is a mixture of catechol derivatives with several unsaturated branched chains. The curing of raw lacquer (crosslinking of urushiol) has different mechanisms and properties due to different conditions. In the traditional proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G8/30B33Y70/00
CPCB33Y70/00C08G8/30
Inventor 薛涵与林棋李心忠方润
Owner MINJIANG UNIV
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