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Method for preparing carbon nanotube copper-based laminated composite material

A carbon nanotube and composite material technology, applied in coatings, electrolytic coatings, electrophoretic plating, etc., can solve the problem of mismatching strength and toughness of carbon nanotube-copper matrix composite materials, achieve efficient preparation, improved mechanical properties, high The effect of enhancing efficiency

Inactive Publication Date: 2018-05-15
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the problem that the strength and toughness of the carbon nanotube copper-based composite material prepared by the existing method does not match, and provides a preparation method for the carbon nanotube copper-based composite material

Method used

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  • Method for preparing carbon nanotube copper-based laminated composite material
  • Method for preparing carbon nanotube copper-based laminated composite material
  • Method for preparing carbon nanotube copper-based laminated composite material

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specific Embodiment approach 1

[0033] Specific embodiment one: the preparation method of carbon nanotube copper-based matrix composite material in this embodiment comprises the following steps:

[0034] 1. Acidification treatment of carbon nanotubes and cleaning of copper sheets:

[0035] Put the carbon nanotubes in distilled water, perform ultrasonic treatment, remove the residual impurities in the preparation process, take out the carbon nanotubes and dry them for later use; place the dried carbon nanotubes in a mixed acid solution of sulfuric acid and nitric acid, and perform ultrasonic treatment 2 ~3h, then soak in the mixed acid solution of sulfuric acid and nitric acid for 22~24h, filter, wash with distilled water until the solution becomes neutral, take out the carbon nanotubes and dry them to obtain carbon nanotubes with active groups introduced on the surface ; Wherein the volume ratio of sulfuric acid and nitric acid in the mixed acid solution is (1~3):(1~3);

[0036] Put the copper sheet into a ...

specific Embodiment approach 2

[0041] Embodiment 2: This embodiment differs from Embodiment 1 in that: in Step 1, the carbon nanotubes have a length of 2-5 μm and a diameter of 10-50 nm. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0042] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the drying temperature in step 1 is 100-105°C. Others are the same as in the first or second embodiment.

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Abstract

The invention discloses a method for preparing a carbon nanotube copper-based laminated composite material, relates to a method for preparing a carbon nanotube copper-based composite material and aimsto solve the problem that a carbon nanotube copper-based composite material prepared by using a conventional method is unmatched in toughness. The method comprises the following steps: I, performingacidizing treatment on carbon nanotubes, and cleaning copper sheets; II, preparing composite sheets; III, preparing a composite material. By adopting the method, carbon nanotubes are dispersed by using an electrophoretic deposition method, the carbon nanotubes are directly uniformly dispersed on the surface of a metal plate, the dispersion degree of the carbon nanotubes is increased, and a composite material laminated structure can be constructed by using methods of hot-pressing sintering and later rolling. By adopting the composite material laminated structure, breakage of the material is changed, energy consumption in the breakage process is increased, the strength of the composite material can be remarkably improved when being compared with that of a substrate, and meanwhile the toughness is correspondingly improved. The method is adopted to prepare the carbon nanotube copper-based composite material.

Description

technical field [0001] The invention relates to a preparation method of a carbon nanotube copper-based composite material. Background technique [0002] Due to their excellent mechanical properties and functionality, metal matrix composites have been more and more widely used in the fields of aerospace, automobiles, and mobile communications. As an emerging one-dimensional carbon material, carbon nanotubes are increasingly used as reinforcements for metal matrix composites. However, due to their own nanoscale, the serious van der Waals force between them makes carbon nanotubes easily entangled with each other. At the same time, due to the poor wettability between carbon nanotubes and metals, it is extremely difficult to achieve uniform dispersion in the metal matrix. [0003] The existing methods for preparing copper-based composite materials are mainly powder metallurgy, in-situ self-generation, etc. The common feature is that the carbon nanotubes are uniformly dispersed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D13/02C22C26/00
CPCC25D13/02C22C26/00C22C2026/002C22C2204/00
Inventor 王晓军孟令龙施海龙胡小石吴昆
Owner HARBIN INST OF TECH
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