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Carbon nano tube and Ag metal combining method

A carbon nanotube and metal phase technology, which is applied in the field of combining carbon nanotubes and Ag metal, can solve the problems of small processing area, complicated operation, expensive equipment, etc. Effect

Inactive Publication Date: 2015-10-07
CHENGDU YISHENGKE BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to solve the weak binding force of the existing chemical modification method for connecting carbon nanotubes to metals (especially Ag metal) and the use of focused electron beams to bond carbon nanotubes to metals (especially Ag metal) ) The method of connecting is complicated to operate, the equipment is expensive, and the processing area is small, and a method of combining carbon nanotubes with Ag metal is designed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A method for combining carbon nanotubes with Ag metal, the method for combining carbon nanotubes with Ag metal comprises the following steps:

[0032] 1) Treat the surface of the substrate to be connected. Polish the surface to be connected of the substrate to a surface roughness ≤ 2 μm, then treat the surface to be connected with a chemical film remover, then clean it with alcohol or acetone, and finally use 1500eV ~ 4500eV The Ar ion beam is the surface to be connected of the sputtering substrate sputtered by the sputtering source, and the preferred sputtering source is an Ar ion beam of 1500eV, 2000eV, 2500eV, 3000eV, 3500eV, 4000eV or 4500eV to obtain a processed substrate;

[0033] 2) Preparation of carbon nanotube suspension, the concentration of carbon nanotubes is 0.1μg / mL~3μg / mL, and the preferred concentration of carbon nanotubes is 0.1μg / mL, 0.2μg / mL, 0.3μg / mL, 0.4 μg / mL, 0.5μg / mL, 0.6μg / mL, 0.7μg / mL, 0.8μg / mL, 0.9μg / mL, 1μg / mL, 1.1μg / mL, 1.2μg / mL, 1.3μg / mL, 1....

Embodiment 2

[0039] This embodiment is further optimized on the basis of the above embodiments. In order to better realize the present invention, further, the chemical film removal solution treatment is carried out according to the following steps: the preparation of HNO with a volume fraction of 68.15% 3 Aqueous solution to obtain a chemical film removal solution, immerse the surface of the substrate to be connected in the chemical film removal solution at room temperature for 1.5 minutes, and complete the chemical film removal treatment.

Embodiment 3

[0041] This embodiment is further optimized on the basis of any of the above embodiments. In order to better realize the present invention, further, the concentration of the carbon nanotubes is 0.5 μg / mL~2.5 μg / mL, preferably the concentration of the carbon nanotubes The concentration is 0.5μg / mL, 0.8μg / mL, 0.9μg / mL, 1μg / mL, 1.1μg / mL, 1.2μg / mL, 1.5μg / mL, 1.6μg / mL, 1.8μg / mL, 2μg / mL, 2.1 μg / mL, 2.2 μg / mL, 2.4 μg / mL or 2.5 μg / mL, the ultrasonic treatment time is 20 min to 30 min, preferably 20 min, 21 min, 22 min, 25 min, 27 min, 28 min or 30 min.

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Abstract

The invention provides a carbon nano tube and Ag metal combining method. The objective of the invention is to solve the problem of low combining force when a chemical modification method is adopted to realize carbon nano tube and metal connection, and problems of complex operation, expensive equipment and small processing area when focused electron beams are utilized to connect a carbon nano tube and metal. The method of the invention includes the following steps of: 1) the surface to be connected of a substrate is processed; 2) a carbon nano tube suspension liquid is prepared; 3) carbon nano tube directional distribution processing is performed; and 4) connection is completed: the substrate on which a carbon nano tube has been distributed directionally is arranged in a vacuum diffusion welding machine, and the conditions of vacuum diffusion welding are as follows: vacuum degree ranges from 0.5*10<-5>Torr to 2.5*10<-5>Torr, and pressure ranges from 1 MPa to 2MPa, temperature ranges from 550 DEG C to 650 DEG C, and lasting times ranges from 15min to 25min, and the connection of the carbon nano tube and the metal can be completed, and the substrate is Ag or a metal material with Ag deposited on the surface thereof.

Description

technical field [0001] The invention relates to the technical field of new materials, specifically, a method for combining carbon nanotubes and Ag metal. Background technique [0002] Carbon nanotubes, also known as bucky tubes, are one-dimensional quantum materials with a special structure (the radial dimension is on the order of nanometers, the axial dimension is on the order of microns, and both ends of the tube are basically sealed). Carbon nanotube (the abbreviation of Carbon nanotube) (the plural is CNTs), mainly consists of carbon atoms arranged in a hexagonal shape to form a coaxial circular tube with several to dozens of layers. A fixed distance is maintained between layers, about 0.34nm, and the diameter is generally 2~20nm. And according to the different orientations of the carbon hexagon along the axial direction, it can be divided into three types: zigzag, armchair and spiral. Among them, the helical carbon nanotubes have chirality, while the zigzag and armch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R4/62B81C99/00
CPCH01R4/62B81C99/00
Inventor 张蛟
Owner CHENGDU YISHENGKE BIOTECH
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