Material for three-dimensional modeling, combination of materials for three-dimensional modeling, method for manufacturing three-dimensional modeling object, and manufacturing device thereof

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. Excellent ejection stability, safe and easy to dissolve and remove

Inactive Publication Date: 2019-07-19
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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  • Material for three-dimensional modeling, combination of materials for three-dimensional modeling, method for manufacturing three-dimensional modeling object, and manufacturing device thereof
  • Material for three-dimensional modeling, combination of materials for three-dimensional modeling, method for manufacturing three-dimensional modeling object, and manufacturing device thereof
  • Material for three-dimensional modeling, combination of materials for three-dimensional modeling, method for manufacturing three-dimensional modeling object, and manufacturing device thereof

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 present invention relates to a material for three-dimensional modeling, a combination of materials for three-dimensional modeling, a method for manufacturing a three-dimensional modeling object, and a manufacturing device for a three-dimensional modeling object. An object of the present invention is to provide a material for three-dimensional modeling that is excellent in transportability and discharge stability even when stored in a high-temperature, high-humidity environment, and can be dissolved and removed safely and easily. The material for three-dimensional modeling of the present invention has a dissolution start point in a pH range of 7.5 to 10. Examples include the form of a pH-responsive resin that includes at least one of a hydrophobic alkyl group and a hydrophobic alkylene group, and has a hydrophilic structural unit in alkalinity. The above-mentioned pH-responsive resin is A form having a dissolution start point at a pH of 7.5 or more and 10 or less.

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 Patents(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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