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Wear-resistant super-hydrophobic matrix protective coating and preparation method thereof

A protective coating and substrate technology, applied in the field of wear-resistant super-hydrophobic substrate protective coating and its preparation, can solve the problems of no polytetrafluoroethylene and silicone composite coating, etc., achieve low cost, stable hydrophobic performance, hydrophobic The effect of excellent performance

Active Publication Date: 2021-10-26
NO 59 RES INST OF CHINA ORDNANCE IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Currently, there are no coatings that combine zirconia, PTFE and silicone in the literature and on the market

Method used

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  • Wear-resistant super-hydrophobic matrix protective coating and preparation method thereof
  • Wear-resistant super-hydrophobic matrix protective coating and preparation method thereof
  • Wear-resistant super-hydrophobic matrix protective coating and preparation method thereof

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Experimental program
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Embodiment 1

[0039] Marine environment substrate protective coating, the protective coating is specifically prepared according to the following steps:

[0040] A. Pretreatment, specifically:

[0041] A1. Substrate preparation: Take a 316L stainless steel workpiece with a size of Φ25mm*6mm, and carefully polish the surface burrs, welding slag, sharp corners, sharp corners, etc. with sandpaper;

[0042] A2. Sand blasting treatment: use 0.67MPa dry and clean compressed air as the power, the spray distance is 150mm, and the spray angle is 45°-90°, spray the 150-mesh white corundum abrasive with multi-angular particles onto the surface of the substrate treated in step A1 at high speed, Thoroughly remove surface impurities and roughen the surface;

[0043] B. Preparation of composite material coating:

[0044] B1. ZrO with a particle size of 68 μm 2 Powder 200g (the ZrO 2The powder contains 8% yttrium oxide (by mass percentage), 20g of 40μm PTFE powder and 1g of silicone powder with a partic...

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Abstract

The invention belongs to the technical field of plasma spray coating methods characterized by plating materials, and particularly relates to a matrix protective coating. The protective coating comprises a pretreatment coating surface layer and a composite material coating, wherein the composite material coating is formed by spraying mixed powder of zirconium dioxide powder, polytetrafluoroethylene powder and silicone powder. The coating not only has excellent corrosion resistance, but also has excellent wear resistance, super-hydrophobicity and high temperature resistance.

Description

technical field [0001] The invention belongs to the technical field of plasma spraying method characterized by plating materials, and in particular relates to a wear-resistant super-hydrophobic substrate protective coating and a preparation method thereof. Background technique [0002] Seawater is the most abundant natural electrolyte. It is inevitable that various metal structures that are in direct contact with seawater, such as seagoing ships, harbor steel wharves, offshore oil production platforms, submarine cables, seawater coolers, etc., are immersed in seawater or in the atmosphere of the ocean all year round. Electrochemical corrosion of seawater ("Seawater Corrosion and Protection of Metal Materials", Song Xueshu, Mechanical Engineering Materials, No. 2, 1983, 1-4 lines of the first paragraph of the left column on page 58, published in December 1983 31). [0003] The average salinity of the ocean is 3.5%, plus some other impurities and the presence of metal ions su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/134C23C4/04
CPCC23C4/134C23C4/04C09D5/1681C09D5/031B05D1/10B05D1/62B05D3/12B05D5/083B05D2202/15B05D2601/20B05D2506/15C09D127/18C08K2003/2244C08K3/22C08L83/04C09D1/00
Inventor 吴护林张伦武解志文陈强陈永君向林宁海青钟勇胡素影吴帅冯博苏虹王晓辉黄波吴迪
Owner NO 59 RES INST OF CHINA ORDNANCE IND