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3D printing core material

A 3D printing and raw material technology, applied in the field of material chemistry, which can solve problems such as low strength and difficult coloring

Inactive Publication Date: 2015-06-17
南京波斯塔新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 the matrix, and photoinitiator, terminator, functionalized nanoparticles and color additives are added thereto. , the 3D printing material prepared after mixing solves the technical problems of matching its fluidity and molding speed with the 3D printer, and at the same time solves the problems of low strength and difficult coloring of the currently commercially available 3D printing materials, and comprehensively improves the quality of the 3D printing materials. Properties such as strength, fluidity and mold release, and reduce the cost of 3D printing materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0175] (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;

[0176] (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 methyl etherified melamine, 1g 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.

[0177...

Embodiment 2

[0179] (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;

[0180] (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...

Embodiment 3

[0182] (1) Preparation of prepolymer: 10.0g photosensitive resin polymer monomer ethylene glycol methyl ether acrylate, 0.05g photoinitiator benzoin (Benzoin) and 1.0g terminator dimethyl dithioamino Sodium formate and 40.0g of cross-linking agent ethylenediamine were dissolved in 150mL of acetone, and prepolymerization was carried out at 80°C to obtain a prepolymer with a degree of polymerization of 50-200, and the viscosity of the prepolymer was about 3000cps;

[0183] (2) The prepolymer prepared in (1) and 40.0g photosensitive resin polymer monomer dipentaerythritol hexaacrylate, 0.05g photoinitiator benzoin (Benzoin), 2.0g terminator dimethyl disulfide Substituted sodium carbamate, 10.0g cross-linking agent ethylenediamine, 0.1g functionalized nano-particle nano-alumina (particle size 600-800nm), 0.5g color additive CuSO 4 Mix with 0.5g solubilizer Tween 80, and mix at room temperature to prepare a 3D printing material. The viscosity of the prepared 3D printing material is...

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Abstract

The invention provides a 3D printing core material, which comprises photosensitive resin, a photoinitiator, a terminator, functional nanoparticles and a color additive, the fluidity and moulding speed of the prepared 3D printing core material is matched with a 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 core material for 3D printing. Background technique [0002] 3D printing is hailed as another industrial revolution that subverts traditional manufacturing. Its forming process is: first, the required computer three-dimensional surface or solid model is designed by the software, and then according to the process requirements, it is layered according to a certain thickness, and the original three-dimensional electronic model is turned into two-dimensional plane information, and then the 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 continuously processes each thin layer in an orderly and continuous manner in the plane processing method and makes them automatically bonded and formed. [0003] 3D printing technology is still ...

Claims

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Application Information

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IPC IPC(8): C08F2/48C08F2/44C08F122/20C08F265/04C08F122/14C08K3/22B33Y70/00
Inventor 刘毓海
Owner 南京波斯塔新材料科技有限公司
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