Polypyrrole/graphene/epoxy resin super-slippage coating suitable for photo-thermal deicing and preparation method thereof

Abstract

The invention discloses a polypyrrole / graphene / epoxy resin super-slippage coating applicable to photo-thermal deicing and a preparation method thereof. The coating is prepared by spraying a mixture of a component A and a component B according to a mass ratio of 1: (0.6-1) and curing, wherein the component A is prepared by mixing 88%-90% by mass of epoxy resin, 2%-4% by mass of monoglycidyl ether terminated polydimethylsiloxane, 4%-6% by mass of diglycidyl ether terminated polydimethylsiloxane and 2%-4% by mass of graphene / polydopamine powder according to the following sequence: firstly, adding the epoxy resin into absolute ethyl alcohol and uniformly stirring; secondly, adding the rest substances, and performing ultrasonic dispersion to obtain a component A; and the component B is prepared by mixing 94-96% by mass of a curing agent and 4-6% by mass of polypyrrole / polydopamine powder according to the following sequence: firstly, adding the curing agent into absolute ethyl alcohol, and performing uniform stirring; secondly, adding the polypyrrole / polydopamine powder, and carrying out ultrasonic dispersion to obtain the component B. And the photo-thermal deicing performance of the epoxy resin-based super-slippage coating is improved.

Description

technical field [0001] The invention belongs to the technical field of preparation of composite coating materials, and in particular relates to a polypyrrole / graphene / epoxy resin super-slip coating suitable for photothermal deicing and a preparation method thereof. Background technique [0002] Surface wettability is one of the important surface properties of solid materials. Due to its smooth and flat surface and low surface energy, super-slip coatings exhibit unique and excellent surface lyophobic, self-repairing, self-cleaning, and anti-adhesion functions. . Therefore, super-slip coatings show broad application prospects in the fields of anti-corrosion, anti-icing, anti-fog, antibacterial and anti-fouling, microfluidic manipulation, oil-water separation, and anti-frost. [0003] At present, the method of preparing super-slip coating is mainly to prepare a porous or micro-nano-rough structure coating and then inject a "lubricating fluid" with low surface energy to constru...

AI Technical Summary

Problems solved by technology

However, the super-slip coating prepared by these two methods is very easy to lose due to the "lubricating fluid", resulting in short service life and unstable performance.

Moreover, most of the "lubricating fluids" used are cost and effective, and many fluorinated liquids that are cheap, easy to prepare, and have low surface energy are the first choice. However, fluorinated liquids have varying degrees of pollution, which hinders the practical application of coatings. and processing

A small part of the "lubricant" used is siloxane polymer. The expensive price and the waste caused by the preparation process greatly increase the cost of the coating and hinder the actual application of the coating.

[0004] Although the super-slip coatings currently prepared can reduce the adhesion strength of ice on the coating surface, most of the super-slip coatings cannot achieve long-term and stable anti-icing, especially when the temperature is too low or the humidity is too high. In such an environment, the anti-icing and subsequent photothermal deicing of super-slip surfaces are not very ideal. Long-term ice coverage will destroy the surface structure and cause the surface to weaken or lose its sliding performance against water.

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