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Method for simultaneously preparing two types of super-hydrophobic films by utilizing copper chloride

A copper chloride, super-hydrophobic technology, applied in the process of producing decorative surface effects, gaseous chemical plating, manufacturing of microstructure devices, etc. problems of uniformity

Inactive Publication Date: 2011-05-04
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reaction speed of preparing superphobic materials with pure myristic acid electrolyte is still slow, and the prepared films are not uniform, and the superhydrophobic properties are poor.
In addition, it is particularly important that in all previous methods for preparing superphobic materials, there is no method that mentions the concept of simultaneously preparing two superphobic films.

Method used

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  • Method for simultaneously preparing two types of super-hydrophobic films by utilizing copper chloride
  • Method for simultaneously preparing two types of super-hydrophobic films by utilizing copper chloride
  • Method for simultaneously preparing two types of super-hydrophobic films by utilizing copper chloride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] First, 1.89g CuCl 2 2H 2 O is placed in 150ml of absolute ethanol to dissolve it completely to form a uniform solution; secondly, 17.125g of myristic acid powder is dispersed in the above solution under the condition of magnetic stirring to make it evenly mixed to form a solution containing 0.5mol / l myristic acid electrolyte. Then put two pieces of 60mm×25mm×1.5mm copper sheets that have been polished and dried with 400 and 800 grit water sandpaper in advance, and put them in the electrolytic tank, and pour the above electrolyte into the electrolytic tank. Electrolysis, the superhydrophobic film formed on the anode and cathode after electrolysis for 10min see figure 1 , see Table 1 for specific contact angles.

Embodiment 2

[0027] First, 1.89g CuCl 2 2H 2 O is placed in 150ml of absolute ethanol to dissolve it completely to form a uniform solution; secondly, 17.125g of myristic acid powder is dispersed in the above solution under the condition of magnetic stirring to make it evenly mixed to form a solution containing 0.5mol / l myristic acid electrolyte. Then put two pieces of 60mm×25mm×1.5mm copper sheets that have been polished and dried with 400 and 800 grit water sandpaper in advance, and put them in the electrolytic tank, and pour the above electrolyte into the electrolytic tank. Electrolysis, the superhydrophobic film formed on the anode and cathode after electrolysis for 15min see figure 2 , see Table 1 for specific contact angles.

Embodiment 3

[0029] First, 1.89g CuCl 2 2H 2 O is placed in 150ml of absolute ethanol to dissolve it completely to form a uniform solution; secondly, 17.125g of myristic acid powder is dispersed in the above solution under the condition of magnetic stirring to make it evenly mixed to form a solution containing 0.5mol / l myristic acid electrolyte. Then put two pieces of 60mm×25mm×1.5mm copper sheets that have been polished and dried with 400 and 800 grit water sandpaper in advance, and put them in the electrolytic tank, and pour the above electrolyte into the electrolytic tank. Electrolysis, the superhydrophobic film formed on the anode and cathode after electrolysis for 30min see image 3 , see Table 1 for specific contact angles.

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Abstract

The invention relates to a method for simultaneously preparing two types of super-hydrophobic films by utilizing copper chloride, relating to a method for preparing a myristic acid copper film of a micrometer / nanometer structure and a myristic acid film inlaid with copper grains. The method is technically characterized by comprising the following steps of: dispersing the copper chloride and myristic acid powder into absolute ethyl alcohol to form uniform electrolyte; and electrolyzing two copper sheets under certain direct voltages in certain time by taking two copper sheets of 60 mm*25 mm*1.5 mm as electrodes so as to form different myristic acid copper films of the micrometer / nanometer structures on an anode and a cathode. The super-hydrophobic films are simultaneously prepared on the anode and the cathode for the first time by using the simple method; and in addition, the super-hydrophobic films have good super-hydrophobic property and extensive application prospect.

Description

technical field [0001] The invention relates to a method for simultaneously preparing two superhydrophobic films by using copper chloride, and relates to a method for a copper myristate film with a micro / nano structure and a myristate film embedded with copper particles. Background technique [0002] Solid surface wettability is a very important property, which is mainly controlled by the chemical composition and surface microstructure of the solid surface. When a droplet falls on it, the air enclosed in the micro / nanostructure and the protrusions with low surface energy will jointly prop up the droplet. Generally, the smaller the contact area between the protrusion and the droplet, the larger the contact angle, and the stronger the superphobicity. It is generally believed that the contact angle of the superphobic surface to water is greater than 150°. Inspired by the surface structure of biological organisms, especially lotus leaves, the researchers used a variety of metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D9/02C25D15/00B82Y40/00B81C1/00
Inventor 陈志耿兴国李峰
Owner NORTHWESTERN POLYTECHNICAL UNIV
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