Preparation method for surface-wettability-controllable super-hydrophobic copper and alloy thereof

A technology of surface infiltration and copper alloy, which is applied to the surface coating liquid device, special surface, surface reaction electrolytic coating, etc., can solve the problems of potential safety hazards, high cost, and limited promotion, etc., to shorten the preparation cycle, The effect of controllable wettability

Active Publication Date: 2017-06-13
SOUTH CHINA UNIV OF TECH
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it requires high-temperature calcination and the participation of strong acid, which has potential safety hazards, complicate

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
  • Preparation method for surface-wettability-controllable super-hydrophobic copper and alloy thereof
  • Preparation method for surface-wettability-controllable super-hydrophobic copper and alloy thereof
  • Preparation method for surface-wettability-controllable super-hydrophobic copper and alloy thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example 1

[0032] A 50×30 red copper sheet, after surface pretreatment, electrodeposition and self-assembly with myristic acid to obtain a super-hydrophobic surface with outstanding structural characteristics, specifically includes the following steps and process conditions:

[0033] (1) Copper sheet pretreatment: The red copper sheet was ultrasonically cleaned with acetone, alcohol, and deionized water for 5 minutes at room temperature, and dried with a hair dryer to remove oil and impurities on the surface;

[0034] (2) Electroplating solution configuration: dissolve thiourea and disodium edetate in deionized water, where the concentration of thiourea is 0.05 mol / L, and the concentration of disodium edetate is 0.01 mol / L;

[0035] (3) Electrodeposition: Two pretreated copper sheets are used as alternating current poles respectively, and 100ml of the electroplating solution prepared in step (2) is electroplated for 5 minutes under the condition of alternating voltage 5V, and t...

Example Embodiment

[0039] Example 2

[0040] A brass sheet with a size of 50×30, after surface pretreatment, electrodeposition and self-assembly with myristic acid to obtain a super-hydrophobic surface with outstanding structural features, the specific steps and process conditions are as follows:

[0041] (1) Copper sheet pretreatment: The brass sheet is ultrasonically cleaned with acetone, alcohol, and deionized water for 10 minutes at room temperature, and dried with a hair dryer to remove oil and impurities on the surface;

[0042] (2) Electroplating solution configuration: Dissolve thiourea and disodium edetate in deionized water, where the concentration of thiourea is 0.3mol / L, and the concentration of disodium edetate is 0.2mol / L;

[0043] (3) Electrodeposition: Two pretreated copper sheets are used as alternating current poles respectively, and 100ml of the electroplating solution prepared in step (2) is electrodeposited for 10 minutes under the condition of alternating voltage 20V, and the temper...

Example Embodiment

[0047] Example 3

[0048] Phosphor copper sheet with a size of 50×30, after surface pretreatment, electrodeposition and self-assembly with myristic acid to obtain a super-hydrophobic surface with outstanding structural features, specifically including the following steps and process conditions:

[0049] (1) Copper sheet pretreatment: The phosphorous copper sheet is ultrasonically cleaned with acetone, alcohol, and deionized water for 2 minutes at room temperature, and dried with a hair dryer to remove oil and impurities on the surface;

[0050] (2) Electroplating solution configuration: dissolve thiourea and disodium edetate in deionized water, where the concentration of thiourea is 0.2mol / L, and the concentration of disodium edetate is 0.5mol / L;

[0051] (3) Electrodeposition: Two pretreated copper sheets are used as alternating current poles respectively, and 100ml of the electroplating solution prepared in step (2) is electroplated for 2 minutes at an alternating voltage of 40V, and...

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
Concentrationaaaaaaaaaa
Concentrationaaaaaaaaaa
Concentrationaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the technical field of metal material surface treatment and discloses a preparation method for surface-wettability-controllable super-hydrophobic copper and an alloy thereof. The preparation method comprises copper or a copper alloy slice is placed in an aqueous solution containing thiocarbamide and disodium edetate dihydrate after pretreating, an electrodeposition reaction is conducted, and a super-hydrophilic surface with a rough structure is obtained; then the copper or the copper alloy slice is placed in an ethanol solution with tetradecanoic acid to be soaked, and the super-hydrophobic copper or a super-hydrophobic copper alloy of which the surface is subjected to self-assembly to generate a super-hydrophobic film is obtained; and the super-hydrophobic copper or the super-hydrophobic copper alloy is annealed for 5-20 min at the temperature of 250-400 DEG C and soaked in the ethanol solution with the tetradecanoic acid, and the surface-wettability-controllable super-hydrophobic copper and the alloy thereof are obtained. The surface wettability of the copper and the alloy thereof is controllable, the process of hydrophobic transformation can be rapidly finished, and an efficient and environmental-friendly method is provided for industrialized, rapid and large-area production of the super-hydrophilic metal surface.

Description

technical field [0001] The invention belongs to the technical field of metal material surface treatment, in particular to a method for preparing superhydrophobic copper and its alloys with controllable surface wettability. Background technique [0002] A superhydrophobic surface refers to a surface with a static contact angle of greater than 150° and a rolling angle of less than 10° with water. People's research on super-hydrophobic surfaces is inspired by the phenomenon that lotus leaves "get out of the mud without staining". Because of its surface functions such as corrosion protection, antibacterial, self-cleaning, anti-fog, anti-frost, and oil-water separation, it has a wide range of application prospects in real life. For example, preparing a super-hydrophobic film layer on metal surfaces such as outdoor antennas and wires can effectively prevent the accumulation of rain, snow and frost, so as to improve the smoothness of the signal and prevent the occurrence of power ...

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
IPC IPC(8): C25D11/00C25F3/02B05D5/00B05D7/24
CPCB05D5/00B05D7/24B05D2518/00C25D11/00C25F3/02B05D2401/10
Inventor 康志新牛蕾马夏雨
Owner SOUTH CHINA UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap