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Simple and universal method for preparation of superhydrophobic material

A super-hydrophobic and universal technology, applied in the field of preparation of simple super-hydrophobic materials, can solve the problems of super-hydrophobic materials such as complex process, expensive equipment, high cost, etc., and achieve the effect of simple and fast preparation method, low cost and wide application range

Active Publication Date: 2015-12-02
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention overcomes the disadvantages of the prior art, such as complex process for preparing superhydrophobic materials, expensive equipment, and high cost, and provides a universal and simple method for preparing superhydrophobic materials, in order to quickly and efficiently perform superhydrophobic surface on substrates. processing, and does not require any expensive equipment and harsh test conditions

Method used

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  • Simple and universal method for preparation of superhydrophobic material
  • Simple and universal method for preparation of superhydrophobic material
  • Simple and universal method for preparation of superhydrophobic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Sponge is used as the matrix of superhydrophobic material.

[0028] Put the sponge under the irradiation of ozone and ultraviolet light for 0.5h to make the surface of the sponge hydroxylated, take out the sponge and place it in CH with a volume fraction of 0.1%. 3 SiCl 3 Soak in the n-hexane solution of 1h, and the humidity of the external environment is controlled at 30%. After the completion, the sponge is taken out, placed in an oven, and dried at a temperature of 50°C to obtain a sponge with superhydrophobic properties.

[0029] The properties of superhydrophobic materials were tested and characterized by using contact angle tester, scanning electron microscope, Fourier transform infrared spectroscopy and other instruments and equipment. Contact angle photos of superhydrophobic sponges as figure 1 Shown, the sponge that proves the superhydrophobic property of above-mentioned preparation has superhydrophobic property really; The scanning electron micrograph of sup...

Embodiment 2

[0031] Sponge is used as the matrix of superhydrophobic material.

[0032] Put the sponge under the irradiation of ozone and ultraviolet light for 1 hour to make the surface of the sponge hydroxylated, take out the sponge and place it in CH with a volume fraction of 0.5%. 3 SiCl 3 Soak in the n-hexane solution of 1h, and the humidity of the external environment is controlled at 30%. After the completion, the sponge is taken out, placed in an oven, and dried at a temperature of 60°C to obtain a sponge with superhydrophobic properties.

[0033] The properties of superhydrophobic materials were tested and characterized by using contact angle tester, scanning electron microscope, Fourier transform infrared spectroscopy and other instruments and equipment. The characterization pictures / photos are the same or similar to those in Example 1, indicating that the superhydrophobic sponge of this example does have superhydrophobic properties.

Embodiment 3

[0035] The foamed nickel metal material is used as the matrix of the superhydrophobic material.

[0036] Put the foamed nickel metal material under the irradiation of ozone and ultraviolet light for 0.5h to make the surface of the foamed nickel metal material hydroxylated, take out the foamed nickel metal material and place it in CH with a volume fraction of 0.5%. 3 SiCl 3 Soak in the normal hexane solution of 1h, the humidity of the external environment is controlled at 30%, after completion, take out the foamed nickel metal material, place it in an oven, and dry it at a temperature of 120°C to obtain a foamed nickel with superhydrophobic properties. metallic material.

[0037] Contact angle photos of superhydrophobic nickel foam as figure 2 , SEM images of superhydrophobic nickel foam as Figure 7 , indicating that the superhydrophobic nickel metal foam material of this embodiment does have superhydrophobic properties.

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Abstract

The invention discloses a simple and universal method for preparation of a superhydrophobic material. The method includes: firstly placing the matrix of a superhydrophobic material under the action of ozone and ultraviolet lamp irradiation for 0.2-5h, or putting the matrix of the superhydrophobic material in a dopamine aqueous solution to react for 3-24h to hydroxylate the matrix surface; then placing the matrix in an organic solvent solution of chlorosilane with a volume fraction of 0.1%-2% and performing stirring for 0.1-3h; and finally putting the matrix in an oven to perform drying at 20-120DEG C, thus obtaining the superhydrophobic material. According to the invention, the solution stirring method with the characteristics of environmental friendliness, easy large scale production, low cost, wide range of application and simple preparation process is employed to modify the raw material surface and prepare the material with super-hydrophobic performance, and has the advantages of no need for any special and expensive instrument and equipment and accurate test conditions.

Description

technical field [0001] Embodiments of the present invention relate to the field of hydrophobic materials, and more specifically, embodiments of the present invention relate to a method for preparing a universal and convenient superhydrophobic material. Background technique [0002] Superhydrophobic materials with special wetting properties can be widely used in cleaning, oil-water separation, underwater drag reduction, anti-icing and other fields. The preparation and practical application of this new type of functional materials have attracted widespread attention. The preparation methods of superhydrophobic materials currently studied are mainly divided into two categories: one is to construct micro-nano structures on the surface of the substrate and then modify low surface energy substances; the other is to construct micro-nano structures on the surface of substances with low surface energy. According to the classification of the above preparation methods, a variety of spe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/36C08J9/40C08J7/12C23C22/02C04B41/46C01B31/02
Inventor 祝青罗观刘慧慧肖春谢虓李尚斌
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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