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Anticorrosive coating on substrate surface and preparation method thereof

An anti-corrosion layer and substrate technology, applied in anti-corrosion coatings, coatings, etc., to reduce infiltration, reduce water absorption, and improve anti-corrosion performance

Active Publication Date: 2016-05-18
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Therefore, simply relying on increasing the strength of the material has certain limitations on the improvement of corrosion resistance.

Method used

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  • Anticorrosive coating on substrate surface and preparation method thereof

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Embodiment 1

[0053] In this embodiment, the structure of the anti-corrosion coating on the surface of the substrate is as follows figure 1 As shown, it consists of an organic coating 2 on the surface of a substrate 1 and a hydrophobically modified glass flake assembly structure 3 adhered to the surface of the organic coating. The hydrophobically modified glass flake assembly structure 3 is composed of hydrophobically modified long glass flakes 5 and hydrophobically modified short glass flakes 6 . On the surface of the organic coating 1, hydrophobically modified short glass flakes 6 are intercalated between the hydrophobically modified long glass flakes 5, so that at least part of the hydrophobically modified long glass flakes 5 are embedded in the organic coating 2 at one end, The other end protrudes from the surface of the organic coating 2 to form a hydrophobic capillary structure with a sharp surface.

[0054] The preparation method of the anticorrosion coating on the surface of the ab...

Embodiment 2

[0061] In this embodiment, the structure of the anti-corrosion coating on the surface of the substrate is the same as that of the anti-corrosion coating on the surface of the substrate in Example 1.

[0062] In the present embodiment, the preparation method of the anticorrosion coating on the substrate surface comprises the following steps:

[0063] (1) Compatibility modification of glass flake E: short glass flake E is scaly C glass with a thickness of 1-4 μm and a length of 5-20 μm; Mix the ethanol solution at a mass ratio of 10:100 to prepare 1000mL of the solution, then add 500g of untreated short glass flake E, heat to reflux to 80°C, stir for 1h, then take it out, cool, wash, filter, and dry to obtain a compatible Sexually modified glass flakes.

[0064] (2) Hydrophobic modification of glass flakes F: glass flakes F are scaly C glass with a thickness of 1-4 μm, and its length is divided into two types, one is 5-20 μm in length, called “short glass flakes”, and the other...

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Abstract

The invention discloses an anticorrosive coating on a substrate surface. The anticorrosive coating is composed of an organic coating on the substrate surface and a hydrophobic modified glass flake assembly structure adhered to the surface of the organic coating. According to the organic coating, chopped glass flakes with surface undergoing compatibility modification are used as a filling material. The glass flake assembly structure is composed of long and chopped glass flakes which have undergone hydrophobic modification. Hydrophobic modified chopped glass flakes are mixed with the hydrophobic modified long glass flakes. One end of at least part of the long glass flakes is embedded into the organic coating, thus achieving a fixation effect; and the other end bulges out of the surface of the organic coating, thus forming a hydrophobic capillary structure with a sharp-pointed surface. When a corrosive liquid drop impacts the material surface, the organic coating has an excellent corrosion protection effect, is especially suitable for dynamic impact wear corrosive liquid environments, such as corrosion protection of ocean splash zone's material surface, turbine blades, oil hydraulic pumps and the like, and is especially suitable for corrosion protection of ocean splash zone's material surface.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion on the surface of a substrate, in particular to an anti-corrosion layer on the surface of a substrate in a dynamic impact wear corrosive liquid environment and a preparation method thereof. Background technique [0002] my country has more than 18,000 kilometers of coastline, rich marine resources and a thriving marine industry. However, the annual economic loss caused by corrosion in my country is at least 90 billion yuan, of which the economic loss caused by marine corrosion is far greater than that caused by natural disasters such as earthquakes and typhoons, accounting for more than 30%. At present, my country has built and is building a large number of various steel structures and reinforced concrete structures in the fields of offshore oil and gas field development, port construction, sea-crossing bridges, submarine tunnels, ship engineering, and deep-sea exploration. Once catastrophi...

Claims

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Application Information

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IPC IPC(8): C09D127/12C09D5/08C09D7/12
Inventor 张昕乌学东
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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