Preparation and application of super-hydrophobic/oleophobic coating layer with excellent performance

A super-hydrophobic, high-performance technology, applied in coatings, anti-corrosion coatings, cellulose coatings, etc., can solve the problems of difficult large-scale preparation, difficult liquid repellency of wear-resistant coatings, high preparation costs, etc., to achieve excellent wear resistance and chemical resistance Stability, easy large-scale production, outstanding effect of oleophobic performance
CN111019482AActive Publication Date: 2020-04-17QILU UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
QILU UNIV OF TECH
Publication Date
2020-04-17

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Abstract

The invention relates to preparation and application of a super-hydrophobic / oleophobic coating layer with excellent performance, wherein the preparation comprises the steps: dispersing nanoparticles and cellulose in an alkaline substance-containing alcoholic solution, and adding tetraethyl orthosilicate and fluorine-containing organosilane for hydrolytic coating to form a solution A; dispersing epoxy resin in an alcoholic solution to form a solution B; uniformly mixing the solution A and the solution B, and then adding tetraethyl orthosilicate and fluorine-containing organosilane to react to generate polysiloxane, to obtain a solution C; dissolving a fluorine-containing amine compound in an alcoholic solution to obtain a solution D; and uniformly mixing the solution C and the solution D, spraying the mixture on a substrate, and curing to obtain the product. A multi-stage micro-nano hierarchical structure is constructed; the super-hydrophobic / oleophobic coating layer has good chemical stability, can achieve a complete repelling effect on N,N-dimethylformamide liquid drops (34.4 mN / m), has a contact angle of 120 degrees on n-hexadecane (27.1 mN / m), is simple in preparation method, can be sprayed on a large scale, and paves a road for industrialization of the super-hydrophobic / oleophobic coating layer.
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Description

technical field

[0001] The invention belongs to the field of preparation of superamphiphobic materials, and in particular relates to the preparation and performance research of a superhydrophobic / oleophobic coating with excellent performance. Background technique

[0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art.

[0003] Generally, a surface with a static contact angle of water droplets greater than 150° and a sliding angle of less than 10° on a solid surface is called a superhydrophobic surface. Inspired by the self-cleaning effect of lotus leaves in nature, super-hydrophobic coatings have been developed rapidly. People imitate the special surface structure of lotus leaves to construct super-hydrophobi...

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
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