Copper alloy composite material coated with graphene, and preparation method thereof

Abstract

The invention discloses a copper alloy composite material coated with graphene, and a preparation method thereof. The preparation method comprises the following steps: taking a copper alloy as a matrix material, cleaning the copper alloy, then carrying out chemical impurity removal on the cleaned copper alloy by virtue of an acidic liquid, and cleaning and blow-drying the copper alloy; placing thetreated copper alloy into a chemical vapor deposition reaction chamber, sealing the reaction chamber, controlling the pressure of the deposition reaction chamber to be 10 Pa or below by virtue of a vacuum pump, charging hydrogen and shielding gas, starting to heat, carrying out heat insulation after the copper alloy material reaches 1000-1200 DEG C, then charging carbon-containing gas and the shielding gas, continuing to carry out heat insulation, cracking the carbon-containing gas and depositing the carbon-containing gas on the surface of the copper alloy into the graphene, and then cooling,thereby completing chemical vapor deposition for the graphene on the copper alloy. According to the method, a copper alloy pipe is used as a substrate, and the graphene is deposited on the surface ofthe copper alloy pipe through the chemical vapor deposition method, so that a contact angle of the surface of the copper alloy is increased, and the hydrophobic property of the copper alloy is improved; and a hydrophobic heat exchange material applicable to large-batch use in the fields of heat exchange and condensation can be prepared.

Description

technical field [0001] The invention relates to a composite material containing copper alloy and graphene, in particular to a copper alloy composite material coated with graphene and a preparation method thereof. Background technique [0002] The vapor condensation heat transfer process has a wide range of applications in the fields of chemical industry, refrigeration, electronics, power generation, power and aerospace thermal control technology. The steam condensation heat transfer process and the enhancement of heat transfer performance have important practical value for saving energy, raw materials and engineering costs. In many occasions in the industry, the condensation process is required to be realized under low pressure or vacuum conditions, such as steam turbine condenser, molecular distillation, material processing, low temperature multi-effect seawater desalination, absorption heat pump and refrigeration, vacuum heat pipe, petrochemical, etc. . [0003] At prese...

AI Technical Summary

Problems solved by technology

However, there is no excellent process for preparing composite materials using industrial-grade copper alloy tubes as substrates and graphene.

Images