Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of metal superhydrophobic surface and preparation method thereof

A super-hydrophobic surface and metal technology, which is applied in the field of metal super-hydrophobic surface and its preparation, can solve the problem of weak friction resistance of super-hydrophobic surface, and achieve the effect of simple and controllable electroplating process, environmental friendliness and low cost

Inactive Publication Date: 2017-04-19
SOUTH CHINA UNIV OF TECH
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past superhydrophobic surface preparation methods, the prepared superhydrophobic surface has weak friction resistance, and the superhydrophobic surface with weak friction resistance is difficult to have practical industrial application value

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of metal superhydrophobic surface and preparation method thereof
  • A kind of metal superhydrophobic surface and preparation method thereof
  • A kind of metal superhydrophobic surface and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The brass sheet was polished with 400 mesh and 800 mesh sandpaper, rinsed with pure water, dried, and used as the cathode, and the same size brass sheet was used as the anode. -1 Nickel sulfate, 50g∙l -1 Nickel chloride hexahydrate and 45g∙l -1 Electroplating was carried out in the Watts electroplating solution of boric acid, and the electroplating current density was 0.5A∙cm -2 , the electroplating temperature is 50°C, and the electroplating time is 60 min. After the electroplating is completed, the workpiece is taken out, washed with water, and dried.

[0032] Place the electroplated workpiece together with 5% heptadecafluorodecyltriethoxysilane ethanol solution in an oven, heat treatment at 100°C for 60 min, take out the sample after heat treatment, and test its hydrophobicity, corrosion resistance and friction resistance Performance, the results are shown in Table 1, and its contact angle diagram is shown in figure 1 shown.

Embodiment 2

[0034] The brass sheet was polished with 400 mesh and 800 mesh sandpaper, rinsed with pure water, dried, and used as the cathode, and the same size brass sheet was used as the anode. -1 Nickel sulfate, 50g∙l -1 Nickel chloride hexahydrate and 45g∙l -1 Electroplating was carried out in the Watts electroplating solution of boric acid, and the electroplating current density was 0.3A∙cm -2 , the electroplating temperature is 30°C, and the electroplating time is 30 min. After the electroplating is completed, the workpiece is taken out, washed with water, and dried.

[0035] Place the electroplated workpiece together with 1% heptadecafluorodecyltriethoxysilane ethanol solution in an oven, and heat-treat at 120°C for 30 minutes. After heat-treatment, take out the sample and test its hydrophobicity, corrosion resistance and friction resistance Performance, the results are shown in Table 1, and its contact angle diagram is shown in figure 2 shown.

Embodiment 3

[0037] The aluminum sheet was polished with 400 mesh and 800 mesh sandpaper, rinsed with pure water, dried, and used as the cathode, and the same size brass sheet was used as the anode. -1 Nickel sulfate, 50g∙l -1 Nickel chloride hexahydrate and 45g∙l -1 Electroplating was carried out in the Watts electroplating solution of boric acid, and the electroplating current density was 0.4 A∙cm -2 , the electroplating temperature is 50°C, and the electroplating time is 40 min. After the electroplating is completed, the workpiece is taken out, washed with water, and dried.

[0038] Place the electroplated workpiece together with the ethanol solution of heptadecafluorodecyltriethoxysilane with a concentration of 10% by volume in an oven, heat treatment at 150°C for 10 minutes, take out the sample after heat treatment, and test its hydrophobicity, corrosion resistance and friction resistance Performance, the results are shown in Table 1, and its contact angle diagram is shown in imag...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
contact angleaaaaaaaaaa
angleaaaaaaaaaa
Login to View More

Abstract

The invention relates to a metal super-hydrophobic surface and a preparation method thereof. The preparation method comprises following two steps: firstly, electroplating method is adopted, traditional Watts electroplate liquid is taken as a base electroplate liquid, conductive metal base materials such as stainless steel, copper, aluminium alloy, and magnesium aluminum alloy, are taken as a negative electrode, and copper sheets are taken as a positive electrode so as to prepare a nickel coating layer; and secondly, an obtained electroplated surface and an ethanol solution containing fluorosilane are delivered into a heating furnace for heat treatment, and an obtained sample is subjected to washing and blow drying so as to obtain the surface with super-hydrophobicity on metal workpieces. The preparation method of the metal super-hydrophobic surface is simple; cost is low; and the preparation method is convenient for industrialized application. Contact angle of the obtained metal super-hydrophobic surface is more than 155 DEG, and rolling angel is less than 10 DEG; the metal super-hydrophobic surface possesses excellent super hydrophobicity, self-cleaning performance, wear resistance, and corrosion resistance; the preparation method is suitable for obtaining the metal super-hydrophobic surfaces with super hydrophobicity, self-cleaning performance, wear resistance, and corrosion resistance on the surfaces of a plurality of metal base materials with complex shapes and large area.

Description

technical field [0001] The invention relates to a method for obtaining a super-hydrophobic surface on the surface of metal substrates with different shapes. The obtained super-hydrophobic surface not only has very good super-hydrophobic and self-cleaning functions, but also has excellent wear-resistant and anti-corrosion functions. Background technique [0002] A superhydrophobic surface refers to a surface with a contact angle with water greater than 150°. Due to the special wetting properties of the superhydrophobic surface, it can be used in waterproof, anti-fog, anti-fouling, anti-icing, self-cleaning of industrial equipment and buildings, self-cleaning and anti-flashover of high-voltage electrical equipment, biomedicine and bionics There are many potential application prospects in material application, pipeline waterproof and anti-corrosion, fluid drag reduction and energy saving, power transmission towers and cables in winter anti-ice and snow. When the rolling angle ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C25D3/12C25D5/50
Inventor 苏峰华姚凯
Owner SOUTH CHINA UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com