A preparation method of superhydrophobic flame retardant coating with excellent performance

Abstract

The invention discloses a method for preparing a super-hydrophobic flame-retardant coating with excellent performance. The preparation steps are as follows: take and disperse in a mixture of absolute ethanol and ammonia water, heat after ultrasonic stirring, and stearyltrimethoxysilane Add it into the mixed solution to obtain solution A; take bisphenol A epoxy resin and dissolve it in absolute ethanol, and use ultrasonic stirring to obtain solution B; mix solution A and solution B evenly, then quickly add TEOS, and add The flame retardant intermediate continues to stir to obtain a suspension C; the suspension C is sprayed on the substrate to cure, and a super-hydrophobic flame-retardant coating is obtained; the combination of micro-nano structure and epoxy resin in the present invention successfully prepares a A flame-retardant superhydrophobic coating with good mechanical stability and chemical stability, the coating has low preparation cost, simple preparation process, and is easy to realize large-scale industrial application.

Description

technical field [0001] The invention relates to the field of superhydrophobic coating preparation, in particular to a method for preparing a superhydrophobic flame-retardant coating with excellent performance. Background technique [0002] Superhydrophobic surface refers to the material surface with a static contact angle of water droplets greater than 150° and a rolling angle of less than 10°; inspired by the self-cleaning effect of lotus leaves in nature, it is found that the unique micro-nano rough structure and low surface energy properties can make the coating The surface forms an air cushion physical barrier layer; this discovery has been widely used in many engineering fields such as self-cleaning, anti-corrosion, anti-icing and drag reduction; however, with the rapid development of industrialization, coatings with a single performance have been unable to meet people's actual needs. [0003] In practical applications, how to make different properties compatible on th...

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Problems solved by technology

[0002] Superhydrophobic surface refers to the material surface with a static contact angle of water droplets greater than 150° and a rolling angle of less than 10°; inspired by the self-cleaning effect of lotus leaves in nature, it is found that the unique micro-nano rough structure and low surface energy properties can make the coating The surface forms an air cushion physical barrier layer; this discovery has been widely used in many engineering fields such as self-cleaning, anti-corrosion, anti-icing and drag reduction; however, with the rapid development of industrialization, coatings with a single performance have been unable to meet people's real needs

[0003] In practical applications, how to make different properties compatible on the coating; in terms of flame retardancy, the preparation of flame retardants at this stage often relies on polar groups such as phosphorus, while hydrophobicity requires that the surface of the coating be reduced as much as possible. Polar groups; at the same time, complex use environments such as physical wear or strong acid and high temperature will generally affect the performance of the coating, and even cause the coating to lose its lyophobicity directly; in addition, most of the current research on superhydrophobic coatings In the laboratory stage, it is difficult to achieve large-scale industrial application

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