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Method for preparing two types of super-hydrophobic membranes simultaneously by utilizing ferric chloride

A ferric chloride, super-hydrophobic technology used in processes for producing decorative surface effects, gaseous chemical plating, fabrication of microstructure devices, etc.

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

In addition, it is worth noting that in all previous methods of preparing superphobic materials, only one superphobic material film can be prepared

Method used

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  • Method for preparing two types of super-hydrophobic membranes simultaneously by utilizing ferric chloride
  • Method for preparing two types of super-hydrophobic membranes simultaneously by utilizing ferric chloride
  • Method for preparing two types of super-hydrophobic membranes simultaneously by utilizing ferric chloride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] First, 2g FeCl 3 ·6H 2 O is placed in 150ml of absolute ethanol to dissolve it completely to form a uniform solution; secondly, 2.741g of myristic acid powder is dispersed in the above solution under the condition of magnetic stirring, and mixed evenly to form a solution containing 0.08mol / l myristic acid electrolyte. Then put two 60mm x 25mm x 1.5mm copper sheets that have been sanded and dried with 400 and 800 grit water sandpaper in advance and placed in the electrolytic tank, and the above electrolyte is poured into the electrolytic tank, under a DC voltage of 15V Electrolysis, the superhydrophobic film formed on the anode and cathode after electrolysis for 15min see figure 1 , see Table 1 for specific contact angles.

Embodiment 2

[0028] First, 2g FeCl 3 ·6H 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 60mm x 25mm x 1.5mm copper sheets that have been sanded and dried with 400 and 800 grit water sandpaper in advance and placed in the electrolytic tank, and the above electrolyte is poured into the electrolytic tank, under a DC voltage of 15V 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

[0030] First, 2g FeCl 3 ·6H 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 image 3 , see Table 1 for specific contact angles.

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Abstract

The invention relates to a method for preparing two types of super-hydrophobic membranes simultaneously by utilizing ferric chloride, in particular to a method for preparing a copper myristate membrane with a micro / nano-structure and a myristic acid membrane embedded with iron particles. The method is technically characterized in that: the ferric chloride and myristic acid powder are dispersed in absolute ethanol to form uniform electrolyte, and two copper sheets with 60mm*25mm*1.5mm are taken as electrodes and are electrolyzed under certain direct-current voltage for a certain period of time, so that the copper myristate membrane with the micro / nano-structure is formed at an anode and the myristic acid membrane embedded with the iron particles is formed at a cathode. The invention provides a simple method for preparing super-hydrophobic membranes at the anode and the cathode simultaneously for the first time; and the super-hydrophobic membranes have good super-hydrophobic performance and have wide application prospect.

Description

technical field [0001] The invention relates to a method for simultaneously preparing two kinds of superhydrophobic films by using ferric chloride, in particular to a method for a copper myristate film with a micro / nano structure and a myristate film embedded with iron particles. Background technique [0002] Wettability is a very important indicator of a solid surface, which is mainly affected by the chemical energy and microstructure of the surface. Many plants in nature, such as lotus leaves, exhibit extraordinary superphobicity. The surface of these leaves usually has micro-nano structures, and has a low rolling angle and a contact angle as high as 150°. Researchers have done a lot of research on the structure of lotus leaf theoretically and experimentally. The effects of geometric scale, surface roughness, and surface energy on the wettability of superphobic surfaces have been extensively discussed from both physical and chemical perspectives. At present, the methods ...

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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