A kind of intrinsic superhydrophobic ceramic coating and preparation method thereof

A ceramic coating and super-hydrophobic technology, which is applied in the coating, metal material coating process, superimposed layer plating, etc., can solve the problem of low service life of super-hydrophobic surface, and achieve the effect of high service life

Active Publication Date: 2018-01-16
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a method for preparing a superhydrophobic surface free from low surface free energy organic modification, to solve the problem of low service life of the superhydrophobic surface

Method used

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  • A kind of intrinsic superhydrophobic ceramic coating and preparation method thereof
  • A kind of intrinsic superhydrophobic ceramic coating and preparation method thereof
  • A kind of intrinsic superhydrophobic ceramic coating and preparation method thereof

Examples

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Embodiment 1

[0026] The preparation method of intrinsic superhydrophobic ceramic coating of the present invention is as follows:

[0027] The first step is to use Ti6Al4V titanium alloy as the base material, and use wire cutting to process the base material into a size of 15mm×15mm×3mm, and use No. 1 to No. 6 metallographic sandpaper to polish the surface of the base material until there is no scratch under the naked eye. Then it was mechanically polished until there were no obvious scratches under the metallographic microscope, and it was ultrasonically cleaned in deionized water, acetone, absolute ethanol and deionized water for 10 minutes, and dried for use;

[0028] In the second step, high-purity (99.99%) metal cerium is used as the target material, and the target material is placed at the source in the double-glow plasma infiltration furnace, and the Ti6Al4V titanium alloy is placed at the workpiece electrode, and the Ar pressure is controlled to 40MPa , The source voltage is 600V, t...

Embodiment 2

[0032] The preparation method of intrinsic superhydrophobic ceramic coating of the present invention is as follows:

[0033] The first step is to use 316L stainless steel as the base material, and use wire cutting to process the base material into a size of 15mm×15mm×3mm, and use metallographic sandpaper No. 1 to 6 to polish the surface of the base material until there is no scratch under the naked eye, and then Mechanically polish it until there are no obvious scratches under the metallographic microscope, and ultrasonically clean it in deionized water, acetone, absolute ethanol and deionized water for 10 minutes, and dry it for use;

[0034] In the second step, using high-purity (99.99%) metal cerium as the target, the target is placed at the source in the double-glow plasma infiltration furnace, and 316L stainless steel is placed at the electrode of the workpiece, and the Ar pressure is controlled to 40MPa, The source voltage is 650V, the workpiece voltage is 300V, the pole...

Embodiment 3

[0038] The preparation method of intrinsic superhydrophobic ceramic coating of the present invention is as follows:

[0039] The first step is to use Ti6Al4V titanium alloy as the base material, and use wire cutting to process the base material into a size of 15mm×15mm×3mm, and use No. 1 to No. 6 metallographic sandpaper to polish the surface of the base material until there is no scratch under the naked eye. Then it was mechanically polished until there were no obvious scratches under the metallographic microscope, and it was ultrasonically cleaned in deionized water, acetone, absolute ethanol and deionized water for 10 minutes, and dried for use;

[0040]In the second step, using high-purity (99.99%) metal erbium as the target material, the target material is placed at the source in the double-glow plasma infiltration furnace, and the Ti6Al4V titanium alloy is placed at the workpiece electrode, and the Ar pressure is controlled to 35MPa , The source voltage is 800V, the work...

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Abstract

The invention discloses an intrinsic super-hydrophobic ceramic coating and a preparing method thereof, and belongs to the technical field of metal base surface treatment. A titanium alloy or stainless steel serves as a base material, firstly, a double glow plasma permeability technology is adopted, lanthanide series metal serves as a double glow plasma permeability metal target material, a lanthanide metal coating is prepared on the surface of the base body material, and the plasma oxidization technology is adopted to convert the prepared lanthanide metal coating into a compact oxide ceramic coating. Due to the fact that in the plasma permeability and plasma oxidation process, the surface of the metal base body is continuously bombarded by Ar ions to form a certain micro rough structure, the prepared lanthanide metal oxide ceramic coating has a certain super-hydrophobic characteristic, and the contact angles are larger than 150 degrees. According to the provided method, the prepared super-hydrophobic ceramic coating has the stable environment adaptation, and compared with the super-hydrophobic surface prepared by the traditional technical means, the industrial service life of the coating is greatly prolonged.

Description

technical field [0001] The invention belongs to the technical field of surface treatment of metal substrates, in particular to a method for preparing functional ceramics with intrinsic superhydrophobic properties. The prepared intrinsic superhydrophobic ceramic coating has important practical significance for promoting the industrial application of superhydrophobic surfaces. Background technique [0002] Bionic superhydrophobic coatings (referring to apparent contact angle greater than 150° and rolling angle less than 10°) are widely used in industrial production, daily It has shown strong application potential in life and national defense equipment, and has aroused extensive research interest of scientific researchers in various countries. It is expected to realize functional replication on the surface of metal materials, inorganic materials and polymer materials. [1-3] . At present, the effective preparation of superhydrophobic surfaces is mainly achieved by modifying th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/48C23C14/16C23C14/58C23C8/12C23C8/36C23C28/00
CPCC23C8/12C23C8/36C23C14/16C23C14/48C23C14/5826C23C14/5853C23C28/322C23C28/3455
Inventor 沈一洲刘森云朱春玲陶杰
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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