A kind of preparation method of wear-resistant superhydrophobic film

A super-hydrophobic and thin-film technology, applied in the direction of electrolytic inorganic material coating, electrolytic coating, electrophoretic plating, etc., can solve the problems of damage, limited heat resistance, and matrix damage, and achieve low facility requirements, low material cost, and combined strong effect
CN106283151BActive Publication Date: 2018-05-22ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2018-05-22

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Abstract

The invention discloses a preparation method for a wear-resisting super-hydrophobic thin film. Firstly, the electro-deposition technology is adopted for preparing a layer of SiO2 thin film on a metal base body, wherein the SiO2 thin film is high in mechanical strength and good in bonding force and is of a highly porous structure; and then the electrophoretic technology is adopted for filling a hole way of the above SiO2 thin film with super-hydrophobicity nanometer SiO2 powder subject to surface modification, and therefore the super-hydrophobic thin film with the excellent wear-resisting performance is obtained. The super-hydrophobicity nanometer SiO2 powder is prepared through graft modification of nanoscale SiO2 powder and long-chain organosilane like dodecyltrimethoxysilane, hexadecyltrimethoxysilane, octadecyltrimethoxysilane or hydrophobicity silane containing chlorine, fluorine and the like under the alkaline condition, wherein the hydrophobicity silane containing chlorine, fluorine and the like include octadecyltrichlorosilane, perfluor octyl group trimethoxy silane and the like. The method for preparing the super-hydrophobic thin film is simple in operation, low in cost and soft in condition and is expected to be applied to industrial production in large scale.
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Description

technical field

[0001] The invention relates to the gentle preparation of a wear-resistant super-hydrophobic film, in particular to a preparation method of a wear-resistant super-hydrophobic silicon dioxide film. Background technique

[0002] Superhydrophobic material refers to a special material with a contact angle greater than 150° and a rolling angle less than 10°. In recent years, superhydrophobic materials have been widely used in many fields, such as surface self-cleaning, surface antifreeze, metal protection, etc., by taking advantage of their special "non-stick" characteristics. However, most of the superhydrophobic film materials prepared by conventional methods have disadvantages such as poor mechanical properties and poor wear resistance, which largely limit their practical applications.

[0003] Superhydrophobic surfaces with good wear resistance are currently prepared by two basic approaches. One is that the use of flexible materials (such as fabrics, cotton,...

Claims

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