A surface treatment method for antibacterial aluminum veneer

Abstract

The invention discloses a surface treatment method for an antibacterial aluminum veneer, which comprises the following steps: Step 1: Put the aluminum veneer into a immersion tank, add a mixed solution with a mass fraction of 25%, heat it at a constant temperature to 40 degrees Celsius, and perform ultrasonic Cleaning; Step 2: Take out the aluminum veneer, wipe it with a non-woven cloth, and soak it in the passivation solution for 1-2 minutes; Step 3: Put the polyurethane amide hot-melt particles in ethanol, heat at 40 degrees Celsius for 2-3 Minutes, after generating a 10-40wt% dilution. In the present invention, acetone will generate diacetone alcohol under the catalysis of hydrochloric acid, and diacetone alcohol will reduce the viscosity of foreign matter. Cooperating with ultrasonic vibration, the foreign matter attached to the outer wall of the aluminum veneer will be detached quickly, and there are blunt alcohols composed of various solutions. The chemical solution can react with the surface of the cleaned aluminum veneer to form a dense oxide film with high strength, thereby improving the passivation degree of the aluminum veneer and ensuring the flatness of the surface.

Description

technical field [0001] The invention relates to the technical field of surface treatment of aluminum veneers, in particular to a surface treatment method for antibacterial aluminum veneers. Background technique [0002] Aluminum veneer refers to a building decoration material that is processed by chromizing and other treatments, and then processed by fluorocarbon spraying technology. Fluorocarbon coating mainly refers to polyvinylidene fluoride resin, which is divided into three types: antibacterial powder layer, anti-corrosion layer and varnish. The spraying process is generally divided into two coatings, three coatings or four coatings. Fluorocarbon coating has excellent corrosion resistance and weather resistance, and can resist acid rain, salt spray and various air pollutants. [0003] At present, there are still some deficiencies in the existing surface treatment methods for aluminum veneers. First, the passivation degree of aluminum veneers in the existing surface tre...

AI Technical Summary

Problems solved by technology

[0003] At present, there are still some deficiencies in the existing surface treatment methods for aluminum veneers. First, the passivation degree of aluminum veneers in the existing surface treatment methods for aluminum veneers is relatively poor, and foreign matter is easy to adhere to the surface. The flatness of the aluminum veneer is poor; secondly, the viscosity of the paint in the existing coating is poor, and the cold and heat resistance is poor, so that the paint surface is prone to fracture or even fall off in the long-term temperature difference change; thirdly, Existing paint materials mostly use a single fluorocarbon material, which has poor anti-ultraviolet ability. The aluminum veneer is prone to natural fading under long-term ultraviolet irradiation, and then there will be obvious color difference, which will affect the use effect of the aluminum veneer

[0004] However, fluorocarbon paint spraying does not meet environmental protection requirements, so there is an urgent need for a surface treatment method for antibacterial aluminum veneers that can avoid fluorocarbon paint spraying