Preparation method of 3D printing material

A 3D printing and photosensitive resin technology, applied in the field of material chemistry, can solve the problems of difficult coloring and low strength

Inactive Publication Date: 2015-06-17
南京爱特泰新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the above-mentioned problems, the present inventors have studied diligently and found that the mixture of photosensitive resin polymer monomer and photosensitive resin prepolymer is used as a matrix, and a photoinitiator, a terminator, functionalized nanoparticles, and a color additive are added thereto. and solubilizer, the 3D printing material prepared after mixing s

Method used

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  • Preparation method of 3D printing material
  • Preparation method of 3D printing material
  • Preparation method of 3D printing material

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preparation example Construction

[0037] According to the first aspect provided by the present invention, the preparation method of 3D printing material comprises the following steps:

[0038] Step 1, preparing the prepolymer: dissolving the photosensitive resin polymer monomer, photoinitiator and terminator in a solvent, and performing a prepolymerization reaction at a certain temperature to obtain a prepolymer, so that the viscosity of the prepolymer is 100~ 50000cps.

[0039]In the present invention, before preparing the 3D printing material, the photosensitive resin polymer monomer, the photoinitiator and the terminator are made into a viscosity of 100-50000 cps so that the follow-up reaction is fast, and the prepared 3D printing material has excellent performance.

[0040] The present invention does not specifically limit the solvent used, it is preferred not to react with the photosensitive resin polymer monomer, photoinitiator or terminator, such as aromatic hydrocarbon solvents, aliphatic hydrocarbon s...

Embodiment 1

[0155] (1) Preparation of prepolymer: 48.8g photosensitive resin polymer monomer diethylene glycol dimethacrylate, 0.2g photoinitiator Irgacure369 (BDMB) and 1.0g terminator hydroquinone and 10.0g crosslinking The methyl etherified melamine was dissolved in 100mL of dichloromethane, and the prepolymerization reaction was carried out at 150°C to obtain a prepolymer with a polymerization degree of 50-200, and the viscosity of the prepolymer was about 10000cps;

[0156] (2) Combine the prepolymer prepared in (1) with 28.5g photosensitive resin polymer monomer diethylene glycol dimethacrylate, 0.3g photoinitiator Irgacure369 (BDMB), 1.0g terminator terephthalate Phenol, 10.0g cross-linking agent methylated melamine, 1.0g functionalized nano-particle calcium carbonate (particle size 20-40nm), 1.0g color additive TiO 2 (particle size 20-40 μm) and 0.1 g of solubilizer octylphenol polyoxyethylene ether-10 were mixed at room temperature to prepare a 3D printing material.

[0157] The...

Embodiment 2

[0159] (1) Preparation of prepolymer: 60.0g photosensitive resin polymer monomer dipentaerythritol hexaacrylate, 2.0g photoinitiator 4-methylbenzophenone, 2.0g terminator sodium dimethyldithiocarbamate and Dissolve 5.0g of cross-linking agent methylated melamine in 200mL of chloroform, and carry out prepolymerization reaction at 100°C to obtain a prepolymer with a polymerization degree of 50-200, and the viscosity of the prepolymer is about 8000cps;

[0160] (2) the prepolymer prepared in (1) and 40.0g photosensitive resin polymer monomer dipentaerythritol hexaacrylate, 8.0g photoinitiator 4-methylbenzophenone, 3.0g terminator dimethyl Sodium dithiocarbamate, 5.0g crosslinking agent methylated melamine, 5.0g functionalized nanoparticle calcium phosphate (particle size 80-100μm), 5.0g color additive cobalt blue and 2.0g solubilizer fatty alcohol polyoxyethylene ether- 7. Mix at room temperature to prepare a 3D printing material, and the viscosity of the prepared 3D printing mat...

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Abstract

The invention provides a method for preparing a 3D printing core material, when the 3D printing material is prepared, functional nanoparticles and a color additive are added in a photosensitive resin monomer, a photosensitive resin prepolymer, a photoinitiator and a terminator, the fluidity and moulding speed of the prepared 3D printing material is matched with a domestic 3D printer, and the problems of low intensity and difficult coloring of the 3D printing material can be solved.

Description

technical field [0001] The invention relates to the field of material chemistry, in particular to a method for preparing 3D printing materials. Background technique [0002] 3D printing is hailed as another industrial revolution that subverts traditional manufacturing. Its molding process is: first design the required computer three-dimensional curved surface or solid model by software, and then layer it according to a certain thickness according to the process requirements, transform the original three-dimensional electronic model into two-dimensional plane information, and then convert the original three-dimensional electronic model into two-dimensional plane information The layered data is processed to a certain extent, the processing parameters are input, and the numerical control code is generated: under the control of the microcomputer, the numerical control system sequentially processes each thin layer in a plane processing manner and makes them automatically bonded a...

Claims

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Application Information

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IPC IPC(8): C08F267/06C08F2/50C08K5/3492C08K3/26C08K3/22C08K3/32C08K3/30C08K5/17C08K3/34
Inventor 刘毓海陈静
Owner 南京爱特泰新材料科技有限公司
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