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Patterned wetting surface processing method

A surface processing and patterning technology, which is applied in the field of metal surface treatment and modification, can solve the problems of poor precision, wettability patterned surface complexity, expensive equipment, etc., and achieves strong versatility, low cost and high precision. Effect

Inactive Publication Date: 2018-07-31
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem solved by the present invention is to overcome the complexity, expensive equipment, and poor precision of preparing wettability patterned surfaces in the prior art, and invent a method for preparing patterned wettability surfaces of metal substrates

Method used

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Examples

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Effect test

Embodiment 1

[0025] Using the method of the present invention to perform wettable patterned surface processing on the copper substrate, the process of the present invention is as follows figure 1 shown, the specific steps are as follows:

[0026] (1) Surface pretreatment of copper plate: Put the copper plate into 1M acetic acid solution to corrode for 1 minute, take it out and dry it with nitrogen to remove the dirt and oxide layer on the surface of the copper plate.

[0027] (2) Coating the desired pattern: Use a marker or a non-contact inkjet printer to coat the actual desired pattern on the surface of the copper plate obtained in step (1).

[0028] (3) Selective oxidative corrosion: The copper plate with the pattern obtained in step (2) is put into a mixed solution of 0.1M ammonium persulfate and 0.1M sodium bicarbonate to react for 24h.

[0029] (4) Surface cleaning and drying: put the copper sheet treated in step (3) into an acetone solution for cleaning, and then dry it in the air. ...

Embodiment 2

[0031] Using the method of the present invention to perform wettable patterned surface processing on the aluminum substrate, the process of the present invention is as follows figure 1 shown, the specific steps are as follows:

[0032] (1) Surface pretreatment of aluminum plate: Use 600# and 1000# sandpaper to polish the aluminum plate, and then place it in deionized water for ultrasonic vibration cleaning to remove grease and impurities on the surface of the aluminum substrate.

[0033] (2) Coating the desired pattern: Use a marker or a non-contact inkjet printer to coat the actual desired pattern on the surface of the aluminum plate obtained in step (1).

[0034] (3) Selective oxidative corrosion: The aluminum plate with the pattern obtained in step (2) is put into a copper chloride solution with a concentration of 1M for reaction for 5s.

[0035] (4) Surface cleaning and drying: put the aluminum plate treated in step (3) into deionized water for ultrasonic cleaning, and th...

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Abstract

The invention provides a patterned wetting surface processing method and belongs to the technical field of metal surface treatment and modification. The method is characterized by adopting a mark penor a non-contact ink-jet printer for coating a required ink mark pattern on a metal matrix, and producing a micro-nano structure through oxidation of metal and a specific solution so as to construct apatterned wetting surface. The method comprises the steps of pretreating the surface of the metal matrix so as to remove dirt and an oxidation layer, adopting the mark pen or the non-contact ink-jetprinter for coating the required ink mark pattern, and carrying out selective oxidation corrosion to construct the micro-nano structure. According to the patterned wetting surface processing method provided by the invention, a device and a process are simple, convenient, low in cost and better in controllability, and are applicable to various metals and alloys thereof; wetting patterns in any shape can be obtained through coating by the mark pen or the non-contact ink-jet printer; the wetting patterning of any curved-surface matrix can be realized; and the preparation of the surface with the wetting patterns in any size can be realized.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment and modification, and relates to a patterned wettability surface processing method. Background technique [0002] Extremely wettable surfaces are those with a contact angle with the liquid greater than 150° or less than 10°. The contact angle with water greater than 150° is called superhydrophobic surface, and the contact angle less than 10° is called superhydrophilic surface. There are a large number of natural superhydrophobic and superhydrophilic surfaces in nature, such as the lotus leaf surface with self-cleaning effect, the legs of water striders that can walk freely on the water surface, superhydrophilic in air and superhydrophilic in water. Oleophobic properties. The artificially fabricated patterned wettable surfaces have a wide range of applications in droplet manipulation, sampling, sensing, reaction, and directional transport. [0003] In recent years, with the conti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F1/20C23F1/18C23F1/02
CPCC23F1/20C23F1/02C23F1/18
Inventor 宋金龙杨晓龙赵长林黄柳刘新
Owner DALIAN UNIV OF TECH
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