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Solid freeform fabrication material, solid freeform fabrication material set, method of manufacturing solid freeform fabrication object, and device for manufacturing solid freeform fabrication object

A technology of three-dimensional modeling and manufacturing methods, which is applied in the direction of liquid material additive processing, processing and manufacturing, and tool manufacturing. It can solve the problems that molten resin cannot be ejected stably, cannot be transported stably, and is easy to absorb moisture and soften. It is safe and simple. Dissolution removal, transportability, and excellent ejection stability

Inactive Publication Date: 2017-08-29
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, when the above-mentioned water-soluble resin fiber yarn is stored in a high-temperature and high-humidity environment, compared with other water-insoluble resin fiber yarn, there is a problem that it is easy to absorb moisture and soften, and cannot be stably transported to the melting head.
In addition, there is a problem that the molten resin cannot be ejected stably due to the moisture absorbed into the water-soluble resin fiber filaments is vaporized in the heating head.

Method used

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  • Solid freeform fabrication material, solid freeform fabrication material set, method of manufacturing solid freeform fabrication object, and device for manufacturing solid freeform fabrication object
  • Solid freeform fabrication material, solid freeform fabrication material set, method of manufacturing solid freeform fabrication object, and device for manufacturing solid freeform fabrication object
  • Solid freeform fabrication material, solid freeform fabrication material set, method of manufacturing solid freeform fabrication object, and device for manufacturing solid freeform fabrication object

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0120] 400 g (2.16 mol) of 2-(diethylamino)ethyl methacrylate and 8.87 g (0.054 mol) of azobisisobutyronitrile were dissolved in 1.2 kg of methanol. Nitrogen gas was blown in for 60 minutes, exhausted, the container was covered with a septum, and polymerization was carried out at 60° C. for 20 hours. After the polymerization reaction, the solution was dried under reduced pressure, dissolved in 1 kg of dimethylformamide, added dropwise in diethyl ether, and the precipitate was recovered by suction filtration to obtain 2-(diethylamino)ethyl methacrylate. Polymer. The obtained 2-(diethylamino)ethyl methacrylate homopolymer had a weight average molecular weight of 120,000.

[0121] After drying the obtained homopolymer of 2-(diethylamino)ethyl methacrylate at 50° C. for 8 hours, use a 3D printer (Extruder Nozzle Pro made of 3D filament material, manufactured by Japan Binary Co., Ltd.), the melting temperature : 200° C., ejection speed: 0.5 m / min. A material for three-dimensional...

Embodiment 2

[0123] 400 g (3.63 mol) of 5-methacrylamide valerenic acid and 8.87 g (0.054 mol) of azobisisobutyronitrile were dissolved in 1.2 kg of methanol. Nitrogen gas was blown in for 60 minutes, exhausted, the container was covered with a septum, and polymerization was carried out at 60° C. for 20 hours. After the polymerization reaction, the solution was dried under reduced pressure, dissolved in 1 kg of dimethylformamide, added dropwise in diethyl ether, and the precipitate was recovered by suction filtration. The weight average molecular weight of the obtained 5-methacrylamide valerenic acid homopolymer was 120,000.

[0124] In Example 1, the methacrylic acid-2-(diethylamino)ethyl ester homopolymer was changed to 5-methacrylamide valerenic acid homopolymer, except that it was the same as in Example 1 to obtain a 1.75mm material for three-dimensional modeling.

Embodiment 3

[0126] 400 g (3.38 mol) of 6-methacrylamide caproic acid and 8.87 g (0.054 mol) of azobisisobutyronitrile were dissolved in 1.2 kg of methanol. Nitrogen gas was blown in for 60 minutes, exhausted, the container was covered with a septum, and polymerization was carried out at 60° C. for 20 hours. After the polymerization reaction, the solution was dried under reduced pressure, dissolved in 1 kg of dimethylformamide, added dropwise in diethyl ether, and the precipitate was recovered by suction filtration. The weight average molecular weight of the obtained 6-methacrylamide caproic acid homopolymer was 130,000.

[0127] In Example 1, the homopolymer of methacrylic acid-2-(diethylamino)ethyl ester was changed to 6-methacrylamide hexanoic acid homopolymer. 1.75mm material for three-dimensional modeling (filament for three-dimensional modeling).

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Abstract

The invention relates to a solid freeform fabrication material, a solid freeform fabrication material set, a method of manufacturing solid freeform fabrication object, and a device for manufacturing solid freeform fabrication object. The invention addresses the problem of providing a solid freeform fabrication material which are also excellent in transportability and ejection stability and can be safety, easily and conveniently dissolved and removed even in a storage occasion in high-temperature high-humidity environment. The solid freeform fabrication material has a dissolution starting point in a pH range of 7.5 to 10. At least one of an alkyl group showing hydrophobicity and an alkylene group showing hydrophobicity may be listed, the material has the form of a pH responsive resin of a structural unit showing hydrophilicity in an alkali environment, and the abovementioned pH responsive resin has a dissolution starting point in a pH range of 7.5 to 10.

Description

technical field [0001] The present invention relates to a three-dimensional modeling material, a three-dimensional modeling material set, a method for manufacturing a three-dimensional modeling object, and a manufacturing device for a three-dimensional modeling object. Background technique [0002] In recent years, as a three-dimensional modeling technique, for example, Fused Deposition Modeling (Fused Deposition Modeling, abbreviated as "FDM") is used. [0003] Manufacture of three-dimensional objects by the above-mentioned thermal fusion lamination method The resin composition in the form of filaments (filament) as a three-dimensional object forming material is transported to a heating head, and is melted and ejected to form a three-dimensional object of a predetermined shape. The molding forms the material layer. The intended three-dimensional shaped object can be obtained by repeatedly forming and laminating the above-mentioned three-dimensional shaped object forming ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F120/34C08F122/38C08F222/38C08F220/58C08F220/18B29C64/118B29C64/20B33Y30/00B33Y70/00
CPCB33Y30/00B33Y70/00C08F120/34C08F122/38C08F222/38C08F220/585B33Y40/20C08F220/1818B29C64/106B29C64/40C08F220/283B33Y10/00B29K2077/00C08F120/64C08F220/70
Inventor 成瀬充樋口信三斋藤启铃木康夫田元望
Owner RICOH KK
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