Anti-knock anti-rust polyaniline graft modified water-base fluorocarbon coating for automobile chassis, and preparation method of water-base fluorocarbon coating

Abstract

The invention discloses an anti-knock anti-rust polyaniline graft modified water-base fluorocarbon coating for an automobile chassis, and a preparation method of the water-base fluorocarbon coating. A prepared modified fluorocarbon resin emulsion has a favorable film-forming property and a favorable adhesive force on the surface of a metal substrate; an introduced polyaniline group can be beneficial to improving an electrochemical corrosion resistance ability of the coating and has a corrosion inhibition effect; introduced nanometer zirconia can be beneficial to improving an anti-knock ability, a wear-resisting ability and a heat-resisting ability of a film layer, and preventing the film layer from being damaged under the action of an external force; and in addition, an anti-rust pigment ground through a hyperbranched polyether emulsion has better dispersibility and associativity in a resin system, and has a better anti-rust effect.

Description

Technical field [0001] The invention relates to the technical field of water-based anti-rust coatings, and in particular to a water-based fluorocarbon coating modified by quake-proof and anti-rust polyaniline grafted and modified for automobile chassis and a preparation method thereof. Background technique [0002] As the name implies, the chassis of the car is at the bottom of the car. It has been in a relatively dark environment and will be impacted by rain and sand during the driving process, which will cause damage to the surface, accelerate corrosion, and seriously reduce the service life of the chassis. Therefore, strengthen the car Rust prevention of the chassis is very important. [0003] The most direct and effective chassis anti-rust measure is to spray anti-rust paint on the chassis. The traditional chassis anti-rust paint is mainly oil-based paint. The advantage of oil-based paint is that it forms a thicker coating and has a longer service life, but it is fatal The dis...

AI Technical Summary

Problems solved by technology

"Research on the Performance of New Waterborne Fluorocarbon Anticorrosion Coatings" uses fluorocarbon emulsion as the film-forming base material, composite iron-titanium powder and modified zinc phosphate as the main anticorrosion pigments, and the prepared coating shows good sealing effect and anticorrosion performance , but fluorocarbon resin also has some defects, such as high curing temperature, long curing time, poor adhesion, poor wettability with fillers, high cost, etc., further modification is required to improve its Market application value