A kind of environment-friendly fluorocarbon aluminum veneer and preparation method thereof

Abstract

The invention discloses an environment-friendly fluorocarbon aluminum veneer and a preparation method thereof, comprising an aluminum substrate layer, an environment-friendly film layer and a tetrafluorocarbon layer arranged sequentially from the inside to the outside, and the raw materials of the environment-friendly film layer include: a mixed ring Oxygen resin, low-viscosity silicone, glass flakes, silicone rubber spherical micropowder, acrylated phosphate ester, solvent, curing agent; the thickness of the environmental protection film layer is 25um, the thickness of the glass flakes is 2um, and the mesh number is 400 ‑500 mesh, the particle size range of the silicone rubber spherical micropowder is 25‑30um; the mixed epoxy resin comprises a medium epoxy resin with a mass ratio of 5:1: a low epoxy resin; The tetrafluorocarbon layer is formed by electrostatic spraying of tetrafluorocarbon powder coating composed of the following components: tetrafluorocarbon resin, acrylic resin, natural rubber latex, sulfur powder, hydroxyalkylamide, tetramethoxymethylglycerin Urea, attapulgite, additives.

Description

technical field [0001] The invention belongs to the field of plate production technology, and in particular relates to an environment-friendly fluorocarbon aluminum veneer and a preparation method thereof. Background technique [0002] Fluorocarbon coatings have high chemical corrosion resistance, heat resistance, weather resistance and durability, and are inactive to many acids, alkalis and solvents, so they are widely used in the field of architectural decoration. At present, a lot of research has been done on the nano-modification of fluorocarbon coatings in China: Patent CN 103131275A discloses a nano-silica fluorocarbon coating. After adding nano-silica, the coating has better stability and improves the stability of fillers. Dispersibility, anti-sedimentation, anti-flow, and improve the adhesion of the paint film; patent CN 101440243A discloses a nano-titanium dioxide fluorocarbon coating, nano-titanium dioxide has a strong ultraviolet absorption capacity, greatly reduc...

AI Technical Summary

Problems solved by technology

It can be seen that there is a chromization step in the above-mentioned method, but, as common sense, this chromization step will cause serious environmental pollution, and a large amount of toxic chemical reagents are added in the conventional fluorocarbon coating

[0004] Tetrafluorocarbon coating, because its main component fluorocarbon resin contains four fluorocarbon bonds, the fluorocarbon bonds are difficult to break under conditions such as heat and light, so it has longer weather resistance and super strength than difluorocarbon and trifluorocarbon Excellent corrosion resistance to chemical media, the aluminum substrate prepared by it has excellent aging resistance and chemical resistance, but fluorocarbon coatings, especially the existing tetrafluorocarbon powder coatings, have adhesion after film formation in production Poor focus and insufficient hardness