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Preparation method of two-dimensional nano polymer composite wire suitable for 3D printing

A two-dimensional nanomaterial and two-dimensional nanotechnology, applied in the field of two-dimensional nano-polymer composite wire and its preparation, can solve the problems of no two-dimensional nano-polymer composite material, and achieve improved uniformity, improved performance, and improved compactness effect

Inactive Publication Date: 2020-09-29
工科思维技术(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that there is currently no preparation method for a two-dimensional nano-polymer composite material suitable for 3D printing, and to provide a preparation method for a two-dimensional nano-polymer composite filament suitable for 3D printing

Method used

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  • Preparation method of two-dimensional nano polymer composite wire suitable for 3D printing
  • Preparation method of two-dimensional nano polymer composite wire suitable for 3D printing
  • Preparation method of two-dimensional nano polymer composite wire suitable for 3D printing

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Experimental program
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Effect test

Embodiment 1

[0037] A method for preparing a two-dimensional nano-polymer composite filament suitable for 3D printing in this embodiment, the specific steps are as follows:

[0038] (1) Preparation of two-dimensional nano-polymer composite film: The two-dimensional nano-polymer composite film is prepared by centrifugal casting method, and the preparation process is as follows:

[0039] ①The mold rotates circularly at high speed. The cylindrical centrifuge tube, sand core filter layer and nanofiltration membrane rotate at high speed in the circumferential direction, and the inner layer of the smooth inner surface of the centrifuge tube is respectively attached with a layer of sand core filter layer and nanofiltration membrane.

[0040] ② The solution is alternately sprayed back and forth. The prepared two-dimensional nanomaterial solution 7 is evenly sprayed on the inner surface of the high-speed circularly rotating mold in step ①, and the relative motion between the liquid layers forms a ...

Embodiment 2

[0047] In this embodiment, the material of the cylindrical centrifuge tube is glass tube, the material of the filter layer of the sand core is quartz, the material of the nanofiltration membrane is PVC, and the pore diameter is 4 mm. The rotation speed of the mold is 1500r / min. The two-dimensional nanomaterial is graphene oxide with a solubility of 10 mg / ml, and the polymer solution is polyurethane with a concentration of 6 mg / g. The graphene oxide and polyurethane solution are alternately sprayed layer by layer. The auxiliary heating temperature was set at 80° C. to obtain a multi-layer laminated two-dimensional nano-polymer composite film with a thickness of 15 μm. The distance between the blades set at the opening of the mold and perpendicular to the central axis of the centrifuge tube is 1.0 mm, and finally a two-dimensional nano-polymer composite filament suitable for 3D printing is obtained. The strength of the filament is about 52 MPa, and the in-plane and vertical cond...

Embodiment 3

[0049] In this embodiment, the material of the cylindrical centrifuge tube is glass tube, the material of the filter layer of the sand core is quartz, the material of the nanofiltration membrane is PVC, and the pore diameter is 5 mm. The rotation speed of the mold is 1000r / min. The two-dimensional nanomaterial is graphene oxide with a solubility of 10 mg / ml, and the polymer solution is polyurethane with a concentration of 10 mg / g. The graphene oxide and polyurethane solution are alternately sprayed layer by layer. The auxiliary heating temperature was set at 80° C. to obtain a multi-layer laminated two-dimensional nano-polymer composite film with a thickness of 10 μm. The distance between the blades set at the opening of the mold and perpendicular to the central axis of the centrifuge tube is 1.5mm, and finally a two-dimensional nano-polymer composite filament suitable for 3D printing is obtained. The strength of the filament is about 46MPa, and the in-plane and vertical condu...

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Abstract

The invention discloses a preparation method of a two-dimensional nano polymer composite wire suitable for 3D printing, relates to the field of preparation of 3D printing wires, and aims to solve theproblem that a preparation method of a two-dimensional nano polymer composite material suitable for 3D printing does not exist at present. According to the preparation method, the two-dimensional nanopolymer composite film with high density, high directional arrangement, controllable thickness and a multi-layer laminated structure is prepared by a centrifugal casting method and a mode of repeatedly and alternately spraying two-dimensional nano materials and polymer solutions; and then the prepared two-dimensional nano-polymer composite film is cut into a wire suitable for 3D printing by usinga blade in a simple machining mode, and finally the two-dimensional nano-polymer composite wire which has excellent performance and is suitable for 3D printing is obtained. The method has the advantages of being convenient to operate, good in economy, controllable in wire thickness, high in production efficiency, high in orientation, high in compactness and the like. The method is applied to thefield of material preparation.

Description

technical field [0001] The invention relates to the field of preparation of 3D printing filaments, in particular to a two-dimensional nano-polymer composite filament suitable for 3D printing and a preparation method thereof. Background technique [0002] Two-dimensional nanomaterials are confined in two-dimensional planes because of their carrier migration and heat diffusion, which makes this material exhibit many peculiar properties. It has a wide range of applications, and the controllability of its spin degree of freedom and valley degree of freedom has broad application prospects in the fields of spintronics and valleytronics. However, two-dimensional nanomaterials have strong anisotropy, resulting in their in-plane physical properties (conductivity, thermal conductivity, and mechanical properties, etc.) being much higher than those in the vertical in-plane direction, resulting in unstable performance of the material. [0003] The applicant uses centrifugal force to eve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08L71/02C08K3/04C08J5/18D01F6/94D01F1/10B33Y70/10D01D5/42
CPCC08K3/042C08J5/18D01F6/94D01F1/10B33Y70/10D01D5/426C08K2201/011C08J2375/04C08J2371/02
Inventor 钟晶卢东
Owner 工科思维技术(深圳)有限公司
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