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Epoxy-based cross-linked microspheres, preparation method and application thereof

A technology of cross-linking microspheres and epoxy groups, applied in the direction of additive processing, etc., can solve the problems of high viscosity of cross-linking agent, limited viscosity of light-curing resin, excessive use of 3D light-curing technology, etc., to achieve uniform size and improve mechanical properties. performance effect

Active Publication Date: 2017-09-12
GUANGZHOU 4 0 IND DESIGN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these multifunctional crosslinking agents tend to have high viscosity, which is not conducive to excessive use in 3D photocuring technology
Because both SLA and DLP have limitations on the viscosity of photocurable resins

Method used

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  • Epoxy-based cross-linked microspheres, preparation method and application thereof
  • Epoxy-based cross-linked microspheres, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] An epoxy-based cross-linked microsphere, made of the following components by weight: 150 parts by weight polyglycidyl methacrylate (GMA), 2 parts by weight 2,4,6-trimethylbenzoyl- Diphenylphosphine oxide, 8 parts by weight of 1-hydroxy-cyclohexyl phenone, 18 parts by weight of PVP, 812 parts by weight of ethanol / water mixed solution with a mass ratio of 1:1, 10 parts by weight of 1,6-hexanediol bis Acrylate.

[0033] The preparation method of above-mentioned epoxy-based cross-linked microspheres comprises the following steps:

[0034] Step 1: 150 parts by weight of polyglycidyl methacrylate (GMA), 2 parts by weight of 2,4,6-trimethylbenzoyl-diphenylphosphine oxide, 8 parts by weight of 1-hydroxyl-cyclohexylbenzene Ketone and 18 parts by weight of PVP are placed in the reactor, and 812 parts by weight of ethanol / water mixed solution are added to stir evenly, and nitrogen gas is passed for 15 minutes;

[0035] Step 2: The reactor is sealed with a cover made of quartz gl...

Embodiment 2

[0040] An epoxy-based crosslinked microsphere, made of the following components by weight: 50 parts by weight polyglycidyl methacrylate (GMA), 0.25 parts by weight α, α-dimethoxy-α-phenyl Acetophenone, 5 parts by weight of PVP, 945 parts by weight of ethanol / water mixed solution with a mass ratio of 0.8:1, and 1 part by weight of tripropylene glycol diacrylate.

[0041] The preparation method of above-mentioned epoxy-based cross-linked microspheres comprises the following steps:

[0042] Step 1: 50 parts by weight of polyglycidyl methacrylate (GMA), 0.25 parts by weight of α, α-dimethoxy-α-phenylacetophenone, and 5 parts of PVP are placed in the reactor, and 950 Stir the ethanol / water mixed solution with a mass ratio of 0.8:1 in parts by weight evenly, and pass nitrogen gas for 15 minutes;

[0043] Step 2: The reactor is sealed with a cover made of quartz glass, and a high-pressure mercury lamp (light intensity 9mW / cm 2 ) illuminate the reaction mixture from the top of the r...

Embodiment 3

[0048] An epoxy-based cross-linked microsphere, made of the following components by weight: 200 parts by weight polyglycidyl methacrylate (GMA), 2 parts by weight 2-phenyl-2-dimethylamino-1- (4-morpholine phenyl)-butanone, 13 parts by weight 2-methyl-1-[4-methylmercaptophenyl]-2-morpholine acetone, 30 parts by weight PVP, 745 parts by weight mass ratio is 0.5: 1 ethanol / water mixed solution, 10 parts by weight of dipropylene glycol diacrylate, and 5 parts by weight of 1,6-hexanediol diacrylate.

[0049] The preparation method of above-mentioned epoxy-based cross-linked microspheres comprises the following steps:

[0050] Step 1: 200 parts by weight of polyglycidyl methacrylate (GMA), 2 parts by weight of 2-phenyl-2-dimethylamino-1-(4-morpholine phenyl)-butanone, 13 parts by weight of 2 -Methyl-1-[4-methylmercaptophenyl]-2-morpholine acetone, 30 parts by weight of PVP are placed in the reactor, add 745 parts by weight of ethanol / water mixed solution with a mass ratio of 0.5:1,...

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Abstract

The invention discloses an epoxy group cross-linked microsphere, and a preparation method and an application thereof, and belongs to the field of 3D printer consumables. The epoxy group cross-linked microsphere is prepared from, by weight, 50-200 parts of polyglycidyl methacrylate (GMA), 0.25-10 parts of a photoinitiator, 2.5-40 parts of a stable dispersant, 730-950 parts of a solvent and 0.25-20 parts of a cross-linking agent. The epoxy group cross-linked microsphere disclosed in the invention has uniform size, and can be stably dispersed in photocurable resin to enhance the mechanical performances of the photocurable resin without obviously improving the viscosity.

Description

technical field [0001] The invention relates to the field of 3D printer consumables, in particular to an epoxy-based cross-linked microsphere and its preparation method and application. Background technique [0002] Three-dimensional printing (3D printing, 3D printing) is a technology based on digital models, using adhesive materials, and constructing objects by layer-by-layer printing. Current 3D printing technologies include selective laser sintering (SLS), direct metal laser sintering (DMLS), fused deposition modeling (FDM), stereolithography (SLA), Digital Light Processing (DLP), Fused Filament Fabrication (FFF), Melted and Extrusion Modeling (MEM), Layered Object Manufacturing (LOM), Electron beam melting (Electron beam melting, EBM), Selective heat sintering (SHS), Powder bed and inkjethead 3d printing (PP), etc. Among them, stereolithography (stereolithography, SLA) and digital light processing (DLP) both use light curing technology, using light of specific waveleng...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F265/04C08F222/14C08F222/20C08L51/00B33Y70/00
CPCB33Y70/00C08F265/04C08L51/003C08F222/102
Inventor 邹志标
Owner GUANGZHOU 4 0 IND DESIGN CO LTD
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