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Composite material for 3D printing and production method therefor

A composite material and 3D printing technology, applied in the field of composite materials, can solve the problems that the mechanical strength and surface quality of 3D products do not meet the requirements, restrict 3D printing technology, reduce costs and other problems, achieve good dimensional stability, convenient production and manufacturing. Environmentally friendly effect

Inactive Publication Date: 2016-03-16
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are relatively few types of raw materials available for 3D printing in the market, and the price is expensive. The mechanical strength and surface quality of 3D products cannot meet the requirements, thus restricting the development of 3D printing technology. On the surface, 3D printers are bundled with 3D printing materials. In fact, the material is tied to the printer, which is not conducive to cost reduction and the application and promotion of 3D printing technology.

Method used

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  • Composite material for 3D printing and production method therefor
  • Composite material for 3D printing and production method therefor
  • Composite material for 3D printing and production method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018]

[0019] ① Weigh a certain amount of microcrystalline cellulose and add it to a 7% sodium hydroxide solution, soak for 21 hours, filter with suction, wash with distilled water until neutral, dry in vacuum, and grind to obtain sodium hydroxide-treated microcrystalline cellulose;

[0020] ② Weigh 15 parts by weight of sodium hydroxide-treated microcrystalline cellulose and add it to 100 parts by weight of distilled water, and perform ultrasonic treatment for 3 hours. During the ultrasonic process, control the temperature of the treatment system at 35°C, and wash the treated microcrystalline cellulose fully with distilled water , suction filtration, vacuum drying, and grinding to obtain ultrasonically activated microcrystalline cellulose;

[0021] ③Add 100 parts by weight of distilled water into the reaction vessel, add 3 parts by weight of concentrated sulfuric acid and 1.1 parts by weight of concentrated nitric acid under stirring, and after mixing, quickly add ultras...

Embodiment 2

[0026]

[0027] ① Weigh a certain amount of microcrystalline cellulose and add it to a 4% sodium hydroxide solution, soak for 18 hours, filter with suction, wash with distilled water until neutral, dry in vacuum, and grind to obtain sodium hydroxide-treated microcrystalline cellulose;

[0028] ② Weigh 10 parts by weight of sodium hydroxide-treated microcrystalline cellulose and add it to 100 parts by weight of distilled water, and perform ultrasonic treatment for 2 hours. During the ultrasonic process, control the temperature of the treatment system at 30°C, and fully wash the treated microcrystalline cellulose with distilled water , suction filtration, vacuum drying, and grinding to obtain ultrasonically activated microcrystalline cellulose;

[0029] ③ Add 100 parts by weight of distilled water into the reaction vessel, add 3 parts by weight of concentrated sulfuric acid and 0.8 parts by weight of concentrated nitric acid while stirring, and after mixing, quickly add ultra...

Embodiment 3

[0034]

[0035] ① Weigh a certain amount of microcrystalline cellulose and add it to 10% sodium hydroxide solution, soak for 24 hours, filter with suction, wash with distilled water until neutral, dry in vacuum, and grind to obtain microcrystalline treated with sodium hydroxide cellulose;

[0036] ② Weigh 20 parts by weight of sodium hydroxide-treated microcrystalline cellulose and add it to 100 parts by weight of distilled water, ultrasonically treat it for 4 hours, control the temperature of the treatment system at 40°C during the ultrasonic process, and wash the treated microcrystalline cellulose fully with distilled water , suction filtration, vacuum drying, and grinding to obtain ultrasonically activated microcrystalline cellulose;

[0037] ③Add 100 parts by weight of distilled water into the reaction vessel, add 3 parts by weight of concentrated sulfuric acid and 1.4 parts by weight of concentrated nitric acid while stirring, and after mixing, quickly add ultrasonical...

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Abstract

Polylactic acid, starch, oxidized microcrystalline cellulose, micro-nano cellulose, glycerin and DOP are composited to prepare a composite material for 3D printing. Production and manufacturing are convenient, and the traditional plastic extrusion production technology can be used for production and processing of the composite material. The mechanization degree is high, the required labor is low, and the production cost is low in the production process. The composite material for 3D printing is advantaged by high intensity, high toughness, high size stability, low number of bubbles, low shrinkage, smooth surface, good linearity and coiling performances, being capable of degradation and environment protection.

Description

technical field [0001] The invention discloses a composite material, in particular relates to a composite material which can be used for 3D printing and a production method thereof. Background technique [0002] In recent years, 3D printing (3DP) technology has developed rapidly. It is a rapid prototyping technology. It is based on digital model files and uses bondable materials such as powdered metal or plastic to construct objects by layer-by-layer printing. technology. 3D printing has the following characteristics: the previous component design was completely dependent on whether the production process can be realized, and 3D printing technology can make enterprises no longer consider production process issues when producing components, and any complex shape design can be realized by 3D printers 3D printing can directly generate objects of any shape from computer graphics data without machining or molds, thereby greatly shortening the production cycle of products and imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L3/02C08L1/04C08L1/02C08K5/053
CPCC08L67/04C08L2201/06C08L2203/12C08L2205/035
Inventor 余旺旺邓玉和吴金绒王翠娜李梦倩王成成
Owner NANJING FORESTRY UNIV
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