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Reusable 3D printing material and its preparation method

A 3D printing and filler technology, applied in the preparation of materials for 3D printing, in the field of materials for 3D printing based on quadruple hydrogen-bonded supramolecular polymers, can solve problems such as the inability to apply temperature-sensitive models

Active Publication Date: 2020-10-27
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The 3D printing consumables used in the traditional process are all high-temperature melt-extruded plastics (extrusion molding temperature is about 200°C), which cannot be applied to the preparation of temperature-sensitive models, such as tissue repair templates containing bioactive proteins and tissue cells, which contain high-temperature Templates for decomposed or high-temperature oxidized substances, etc.

Method used

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  • Reusable 3D printing material and its preparation method
  • Reusable 3D printing material and its preparation method
  • Reusable 3D printing material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0080] Synthon preparation

[0081] 2-ureido-4[1H]-pyrimidinone can be prepared by reacting the corresponding isocytosine with the corresponding isocyanate. Isocytosine can be prepared by condensation reaction of corresponding β-ketoester with guanidine.

[0082]

[0083] [beta]-Ketoesters are prepared in a number of ways. Among the most commonly used are the following three

[0084] 1) Prepared by the alkylation of the divalent ions of the corresponding haloalkanes and ethyl forma(ethyl)acetate;

[0085] 2) It is prepared by first reacting the corresponding acid chloride with ethyl acetoacetate, and then deacylation of an acetyl fragment;

[0086] 3) The corresponding acid chloride reacts with monoethyl malonate potassium salt and magnesium ion salt, and then adds hydrogen ion to remove an acetyl fragment and prepare it with magnesium ion.

[0087] The process of reaction 1 is as follows

[0088]

[0089] Ethyl acetate and sodium hydride react in tetrahydrofuran to...

Embodiment 1

[0272] 1 is divided into the following groups

[0273] Polymer 1 200g

[0274] Nano calcium carbonate 20g

[0275] Coster KR312 (Red) 1g

[0276] 2 Preparation method

[0277] Add 2000mL of chloroform to dissolve and make a paste, concentrate to 500mL, and dry to obtain a uniformly dispersed supramolecular polymer-based 3D printing material.

[0278] The material can be extruded into filaments at 60°C after crushing.

Embodiment 2

[0280] 1 is divided into the following groups

[0281] Polymer 2 200g

[0282] Silica 20g

[0283] Cabot 2014 Black Mother 1g

[0284] 2 Preparation method

[0285] Add 2000mL of chloroform to dissolve and make a paste, concentrate to 500mL, and dry to obtain a uniformly dispersed supramolecular polymer-based 3D printing material.

[0286] The material can be extruded into filaments at 60°C after crushing.

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Abstract

The invention provides a 3D printing material capable of being repeatedly used and a preparation method thereof. The 3D printing material is prepared from a supramolecular polymer matrix, an organic filler, an inorganic filler, a plasticizer, and a pigment. The preparation method comprises following steps: synthesis of matrix resin, mixing, extrusion, and cooling. Supermolecule polymer matrix is prepared based on a quadruple hydrogen bond effect, different polymers are taken as middle chain segments, different preparation methods are chosen, the inorganic and organic fillers are added, a series of polymer materials with different melting temperatures and mechanical properties is synthesized, and the design can be performed based on different requirements. The obtained material can be melted, extruded, and moulded at a low temperature (35 DEG C), and can be used to prepare a model containing a heat sensitive substance; after printing, the model can be directly washed, melted, and drawn;the waste of raw materials is avoided effectively, the using cost is saved, and the economic benefit is increased.

Description

technical field [0001] The present invention relates to a 3D printing material, specifically a 3D printing material based on a quadruple hydrogen bond supramolecular polymer. The invention relates to a method for preparing a material for 3D printing. Background technique [0002] Fused Deposition Modeling (Fused Deposition Modeling, FDM) refers to that the strip-shaped hot-melt material is fed into the nozzle by the wire feeding mechanism, heated to a molten state in the nozzle, and extruded through the nozzle. The molten filamentary material is extruded, extruded according to the path controlled by the CAD layered data, deposited at the designated position and solidified, and deposited layer by layer and solidified to form the entire three-dimensional product. Its operation process is simple, easy to operate and does not generate garbage, clean, no release of toxic gas or chemical substances; raw materials are provided in the form of reel wire, easy to handle and quick rep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L47/00C08L23/36C08L71/02C08K9/04C08K3/04C08K3/34C08K3/36C08K3/26
CPCC08K3/26C08K3/34C08K3/36C08L71/02C08L47/00C08L23/36C08K9/04C08K3/042
Inventor 魏浩阚磊欧阳肖高闪马宁李瑞王国军王强张馨月张智嘉
Owner HARBIN ENG UNIV
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