Composite multi-layer hydrophobic and anti-corrosion film as well as preparation method and application thereof

A technology of anti-corrosion film and composite layer, which is applied in the field of metal anti-corrosion, can solve problems that have not been reported, and achieve the effects of obvious effect, improved stability and improved anti-corrosion ability

Active Publication Date: 2019-12-10
FOSHAN UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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A technical solution that can meet the above

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  • Composite multi-layer hydrophobic and anti-corrosion film as well as preparation method and application thereof
  • Composite multi-layer hydrophobic and anti-corrosion film as well as preparation method and application thereof
  • Composite multi-layer hydrophobic and anti-corrosion film as well as preparation method and application thereof

Examples

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[0026] Example 1:

[0027] A metal substrate covering the corrosion-resistant film of the present invention, wherein the metal substrate is stainless steel, and the preparation method includes the following steps:

[0028] Pre-processing steps: After cutting and scrubbing the stainless steel substrate, it is placed in acetone, absolute ethanol, and deionized water for ultrasonic cleaning and drying; then the stainless steel substrate is placed in the main chamber of the magnetron sputtering equipment, and the vacuum is Up to 5×10 -4 After Pa, the ion source was turned on for cleaning, the power of the ion source was 100W, the stainless steel substrate was cleaned in an argon (Ar) atmosphere, and the chamber pressure was 2Pa.

[0029] Step 1: Sputter coating of chromium metal adhesion layer on stainless steel substrate under argon atmosphere. Among them, the growth temperature of the sputtering coating of the chromium metal adhesion layer is 25°C, the target power is 80W, the pressur...

Example Embodiment

[0033] Example 2:

[0034] A metal substrate covering the corrosion-resistant film of the present invention, wherein the metal substrate is aluminum, and the preparation method includes the following steps:

[0035] Pre-processing steps: After cutting and scrubbing the aluminum substrate, it is placed in acetone, absolute ethanol, and deionized water for ultrasonic cleaning and drying; then the aluminum substrate is placed in the main chamber of the magnetron sputtering equipment, and the vacuum is Up to 5×10 -4 After Pa, the ion source was turned on for cleaning, the power of the ion source was 500W, the aluminum substrate was cleaned in an argon (Ar) atmosphere, and the chamber pressure was 5Pa.

[0036] Step 1: Sputter coating of nickel metal adhesion layer on aluminum substrate under argon atmosphere. The growth temperature of the sputtering coating of the nickel metal adhesion layer is 50°C, the target power is 150W, the sputtering chamber pressure is 0.3Pa, and the thickness o...

Example Embodiment

[0040] Example 3:

[0041] A metal substrate covering the corrosion-resistant film of the present invention, wherein the metal substrate is copper, and the preparation method includes the following steps:

[0042] Pre-processing steps: After cutting and scrubbing the copper substrate, place it in acetone, absolute ethanol, and deionized water for ultrasonic cleaning and drying; then put the copper substrate into the main chamber of the magnetron sputtering equipment and wait for the vacuum Up to 5×10 -4 After Pa, turn on the bias voltage cleaning, the bias voltage is -500V, the copper substrate is cleaned in an argon (Ar) atmosphere, and the chamber pressure is 10 Pa.

[0043] Step 1: Sputtering the nickel metal adhesion layer on the copper substrate under argon atmosphere. The growth temperature of the nickel metal adhesion layer sputtering coating is 100℃, the target power is 200W, and the sputtering chamber The chamber pressure is 0.5Pa, and the thickness of the nickel metal adhe...

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Abstract

The invention discloses a composite multi-layer hydrophobic and anti-corrosion film as well as a preparation method and an application thereof. The film comprises a first metal adhesion layer, a hydrogen-containing amorphous carbon film layer and a hydrogen-free amorphous carbon film layer from bottom to top and is prepared through magnetron sputtering with control on the ratio of argon to hydrogen. Physical and chemical characteristics of different hybridization composition types of carbon are considered, the amorphous carbon film adopting the dual-layer structure is designed, the a-C:H filmis used as a conductive substrate, and thin-layer a-C with the surface covered is used as the anti-corrosion and hydrophobic medium. Through the structural design, the amorphous carbon film can effectively improve the anti-corrosion performance of the film structure on the basis that the conductivity is guaranteed. The design concept has the great prospect for application in the field of metal corrosion resistance and bipolar plates and has the very positive promotion significance for application of metal bipolar plates to hydrogen cells.

Description

technical field [0001] The invention relates to the field of metal corrosion resistance, in particular to a composite multilayer hydrophobic corrosion resistance film and its preparation method and application. Background technique [0002] Amorphous carbon is a general term for a large class of amorphous carbon. Its structure is mainly composed of sp2 hybridization (graphite-like structure) and sp3 hybridization (diamond-like structure) atomic carbon, and the sp3 hybridization carbon film can effectively prevent corrosion. The erosion of ions consolidates the mechanical properties and has good hydrophobic properties, but the conductivity of the carbon film of this composition is poor; while the result of sp2 hybridization mainly affects the conductivity of the amorphous carbon film, but the hydrophobic effect is poor. In some corrosion-resistant structures, especially in hydrogen fuel cells, the metal bipolar plate, one of its core components, often requires an amorphous ca...

Claims

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Application Information

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IPC IPC(8): C23C14/16C23C14/06C23C14/35H01M8/0228
CPCC23C14/165C23C14/0605C23C14/35C23C14/345H01M8/0228Y02E60/50
Inventor 李景灵许泽凌樊婷徐雪青
Owner FOSHAN UNIVERSITY
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