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A composition for 3D printing, its preparation and use method, and its products

A technology of 3D printing and composition, applied in the field of 3D printing composition, can solve the problems of 3D printing practicability, limitation of universality, poor performance of finished product strength and toughness, slow molding speed, etc., so as to avoid chemical changes , Improve mechanical strength and reduce brittleness

Active Publication Date: 2016-02-24
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the most commonly used organic polymer materials for 3D printing are nylon, ABS resin, polycarbonate, polyphenylene sulfone, etc. These materials require high temperature when molding, not only the molding speed is slow, but also the finished product has excellent properties such as strength and toughness. Poor aspect, single color
In contrast, the development of other 3D printing materials is very rare, which also limits the practicability and universality of 3D printing

Method used

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  • A composition for 3D printing, its preparation and use method, and its products
  • A composition for 3D printing, its preparation and use method, and its products
  • A composition for 3D printing, its preparation and use method, and its products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] A composition for 3D printing, in which the components except the solvent are recorded in parts by weight as:

[0072]

[0073] The above composition is gradually added to 100 parts of dichloromethane under the conditions of nitrogen protection and 300 rpm stirring speed. After the addition is completed, stirring is continued for 20 minutes, and then sealed and stored in the dark. It can still be used after being placed for more than 12 months.

Embodiment 2

[0075] A composition for 3D printing, in which the components except the solvent are recorded in parts by weight as:

[0076]

[0077]

[0078] The components of the above composition are gradually added to 100 parts of dichloromethane under the conditions of nitrogen protection and 300rpm stirring speed. After the addition is completed, continue to stir for 30 minutes, and then seal and store in the dark to obtain a pink color for 3D printing. combination.

[0079] The above-mentioned materials are combined with other yellow, blue, and black materials, and the temperature of the printing cavity is controlled to 50°C and the relative humidity is 45% to obtain colorful 3D printed products.

Embodiment 3

[0081] A composition for 3D printing, in which the components except the solvent are recorded in parts by weight as:

[0082]

[0083] The components of the above composition are gradually added to 120 parts of dioxane under nitrogen protection and a stirring speed of 300 rpm. After the addition is completed, stirring is continued for 30 minutes, and then sealed and stored in the dark.

[0084] Using the Z402 printer of ZCorporation Company (need to add humidity control components, control the temperature of the printing chamber at 30°C, and the relative humidity at 45%), the above-mentioned composite materials can print polymer products with high mechanical strength and conductivity.

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Abstract

The invention discloses a 3D printing composition, its preparation and application methods and a product thereof. According to the material, cyanoacrylate and a powder material are used as main bodies; a solvent is added to adjust fluidity of the material; and simultaneously, certain amounts of a plasticizer, a thickener, a flexibilizer, a stabilizer, a cross-linking agent, a pigment, a degassing agent and the like are contained to raise stability of the material and mechanical property of a printing product. As the material is a liquid and solidification process of the material is controlled by controlling conditions such as environment humidity, temperature and the like during printing, an ink-jet printing head which has been developed comparatively mature at present can be used for printing. The composition provided by the invention has characteristics of high printing precision, fast forming speed and low cost. Meanwhile, a printing product has high mechanical strength. The composition is a novel green 3D printing material.

Description

Technical field [0001] The invention relates to a composition that can be used for 3D printing, a preparation and use method, and a product thereof. Background technique [0002] Additive manufacturing technology, also known as 3D printing, refers to a technology that uses CAD design data to build solid parts layer by layer under computer control. Additive manufacturing technology does not require traditional tools, fixtures, and multiple processing procedures. Using three-dimensional design data, parts of any complex shape can be quickly and accurately manufactured on a single device, thereby achieving "free manufacturing" and solving many difficulties in the past. The forming of manufactured parts with complex structures greatly reduces the processing procedures and shortens the processing cycle. And the more complex the structure of the product, the more significant the effect of its manufacturing speed. [0003] Additive manufacturing has attractive development prospects, but...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F120/34C08K13/02C08K3/26C08K3/22C08K3/04C08K3/16C08K3/30C08K3/32
Inventor 郭靖沈衡朱唐徐坚赵宁孙文华董金勇李春成符文鑫林学春马永梅
Owner INST OF CHEM CHINESE ACAD OF SCI
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