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Water-soluble photocuring 3D printing material

A 3D printing and light curing technology, applied in the direction of additive processing, can solve the problems of workpiece warping, large volume shrinkage, deformation, etc., and achieve the effect of reducing shrinkage and improving dimensional stability

Active Publication Date: 2018-08-10
HUZHOU JIFU NEW MATERIALS SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these resins will produce a large volume shrinkage during the photopolymerization process, which is the main factor affecting the manufacturing accuracy of the workpiece
In addition, the curing shrinkage of the resin will lead to the generation of shrinkage stress. When the shrinkage is large, the workpiece will be warped and deformed, or even severely deformed.

Method used

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  • Water-soluble photocuring 3D printing material

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] The preparation method of acrylic polymer can adopt the conventional method in the art, such as using a catalyst to polymerize the monomer in a solvent. The organic solvent used is preferably alcohol compound, ketone compound, ester compound, ether compound, amide compound, Sulfone compounds, hydrocarbon compounds. The initiator used includes, for example, ketone peroxide compounds such as cyclohexanone peroxide, 3,3,5-trimethylcyclohexanone peroxide, and methyl cyclohexanone peroxide; 1. 1-Di(tert-butylperoxy)-3,3,5-trimethylcyclohexane, 1,1-bis(tert-butylperoxy)cyclohexane, n-butyl-4,4-bis( Tert-butylperoxy)pentanoate, 2,2-bis(4,4-di-tert-butylperoxycyclohexyl)propane, 2,2-bis(4,4-di-tert-pentylperoxycyclohexyl) Propane, 2,-bis(4,4-di-tert-hexylperoxycyclohexyl)propane, 2,2-bis(4,4-di-tert-octylperoxycyclohexyl)propane, 2,2-bis(4, Peroxyketal compounds such as 4-dicumylperoxycyclohexyl)propane; hydroperoxides such as cumene hydroperoxide, 2,5-dimethylhexane-2,5-dihyd...

Embodiment 1

[0062] The 3D printing material includes the following components: 100 parts by weight of polyester acrylate M-8060, 30 parts by weight of triethylene glycol di(meth)acrylate, 20 parts by weight of water-soluble polyurethane acrylate A1, 1 part by weight of initiator Agent. Through the workpiece shrinkage test, the shrinkage rate of the 3D printing material is 0.25%.

Embodiment 2

[0064] The 3D printing material includes the following components: 100 parts by weight of polyester acrylate M-8060, 30 parts by weight of triethylene glycol di(meth)acrylate, 20 parts by weight of water-soluble polyurethane acrylate A2, 1 part by weight of initiator Agent. Through the workpiece shrinkage test, the shrinkage rate of the 3D printing material is 0.23%.

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Abstract

The invention relates to a water-soluble photocuring 3D printing material. The printing material comprises the following components in parts by weight: 100 parts of a polyacrylate prepolymer, 10 to 30parts of water-soluble urethane acrylate, 20 to 50 parts of an acrylic monomer thinner and 0.1 to 5 parts of an initiator, wherein the urethane acrylate is prepared from an acrylic acid polymer and isocyanate; the acrylic acid polymer is formed through copolymerization of acrylic monomers; the acrylic monomers at least comprise polyoxyalkylene acrylate monomers, hydroxy acrylic acid monomers andboric acid pinacol ester monomers; and the boric acid pinacol ester monomers are a compound comprising boric acid pinacol ester and unsaturated bonds. The prepared and obtained 3D printing material has extremely low shrinking percentage.

Description

Technical field [0001] The invention relates to a water-based light-curing 3D printing material. Background technique [0002] Rapid prototyping is a new type of manufacturing technology that emerged and developed in the late 1980s. It includes computer-aided design (CAD), computer-aided manufacturing (CAM), computer digital control (CNN), lasers, new materials, precision servos, etc. The development and integration of this technology. [0003] 3D printing technology has the characteristics of not being restricted by the complexity of parts, complete digital control, etc., and has been widely used in the fields of dot-adding, automobiles, construction machinery, and aerospace. At present, light curing 3D printing molding mainly includes laser three-dimensional light curing 3D printing molding and digital light projection 3D printing molding. The liquid light-curing materials commonly used in light-curing 3D printing technology are mainly photosensitive resins containing unsaturat...

Claims

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Application Information

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IPC IPC(8): C08F265/06C08F283/00C08F222/20B33Y70/00
CPCB33Y70/00C08F265/06C08F283/008C08F222/102
Inventor 杨年富
Owner HUZHOU JIFU NEW MATERIALS SCI & TECH CO LTD
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