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System and method for preparing bionic super-hydrophobic metal surface through laser-electrochemical deposition

A metal surface and electrochemical technology, applied in the direction of electrochemical processing equipment, laser welding equipment, metal processing equipment, etc., can solve the problems of poor thermal and mechanical stability, affecting the inherent properties of metal materials, and being vulnerable to damage, etc., to achieve Good thermal and mechanical stability, controllable shape and size

Active Publication Date: 2019-01-18
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thermal and mechanical stability of the low surface energy substance modification layer is poor, and it is easily damaged in harsh environments; in addition, the low surface energy substance will also affect the inherent properties of metal materials, such as surface thermal conductivity and electrical conductivity.

Method used

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  • System and method for preparing bionic super-hydrophobic metal surface through laser-electrochemical deposition
  • System and method for preparing bionic super-hydrophobic metal surface through laser-electrochemical deposition
  • System and method for preparing bionic super-hydrophobic metal surface through laser-electrochemical deposition

Examples

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Embodiment 1

[0071] Taking the copper substrate as an example below, that is, the material of the substrate 4 is copper, illustrating the implementation process of a system and method for preparing a bionic superhydrophobic metal surface by laser-electrochemical deposition of the present invention, including the following steps:

[0072] (1) build as figure 1The picosecond laser ablation, electrochemical polishing, and electrochemical deposition processing system shown; wherein, the picosecond laser ablation part includes a picosecond laser 1, x-y scanning galvanometer 2, F-θ focusing lens 3, substrate 4 and can Angle adjustment gauge 19; the base plate 4 is placed on the adjustable angle gauge 19, and the angle of the adjustable angle gauge 19 is adjusted to be 0°, namely figure 1 In the middle A position, the adjustable angle gauge 19 is placed on the x-y workbench 18. The pulsed laser with a wavelength of 1064nm, a pulse duration of 13ps, and a spot diameter of 20μm is generated by a p...

Embodiment 2

[0078] An implementation process of a system and method for preparing a biomimetic superhydrophobic metal surface by laser-electrochemical deposition, the steps are as follows:

[0079] (1) Build a picosecond laser ablation, electrochemical polishing, and electrochemical deposition processing system as shown in the figure; wherein, the picosecond laser ablation part includes picosecond laser 1, x-y scanning galvanometer 2, and F-θ focusing lens 3. The substrate 4 and the adjustable angle gauge 19; the substrate 4 is placed on the adjustable angle gauge 19, and the angle of the adjustable angle gauge 19 is adjusted to be 5°, namely figure 1 In the middle A position, the adjustable angle gauge 19 is placed on the x-y workbench 18. The pulsed laser with a wavelength of 1064nm, a pulse duration of 13ps, and a spot diameter of 20μm is generated by a picosecond laser 1, and the scanning path is determined by the x-y scanning galvanometer 2, and then focused by the F-θ focusing lens ...

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Abstract

The invention discloses a system and method for preparing a bionic super-hydrophobic metal surface through laser-electrochemical deposition and belongs to the field of preparation of bionic super-hydrophobic metal surfaces. The method comprises the following steps that 1, through a laser ablation texturization method, a micron array structure is constructed on a metal substrate; 2, through electrochemical polishing, nano particles and slag which adhere to the micron structure surface in the ablation process are removed; 3, through electrochemical deposition, densely-distributed nano pyramid structures cover the micron structure surface, and the micro-nano composite structure is prepared. Compared with the prior art, the method for preparing the bionic super-hydrophobic metal surface has the advantages that low-surface-energy substance modification is not needed, the prepared metal surface also has good hydrophobic stability at low temperature and can be applied to metal slopes, and theindustrial application field of the super-hydrophobic metal surface is enlarged.

Description

technical field [0001] The invention belongs to the field of preparation of bionic super-hydrophobic metal surfaces, and relates to a system and method for preparing bionic super-hydrophobic metal surfaces by laser-electrochemical deposition. Background technique [0002] Represented by lotus leaves, the surfaces of many animals and plants in nature (such as water striders, floating leaves of Sophora figii, etc.) have super-hydrophobic properties. The static contact angle of water is greater than 150°, and the sliding angle is less than 10°. Water droplets can easily roll on its surface, so it has special properties such as waterproof and self-cleaning. Therefore, the preparation method of superhydrophobic surface based on biomimetic has attracted much attention. Laser ablation textured metal surface has the advantages of high precision, small thermal influence, good controllability, and less pollution, and has become one of the research hotspots; however, metals have high ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/362B23H3/00
CPCB23H3/00B23K26/362B23K26/361
Inventor 顾秦铭张朝阳朱浩徐坤朱帅杰蒋雯王安斌
Owner JIANGSU UNIV
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