Surface treatment method of antibacterial aluminum veneer

Abstract

The invention discloses a surface treatment method of an antibacterial aluminum veneer, which comprises the following steps of: 1, putting an aluminum veneer into a soaking tank, adding a mixed solution with the mass fraction of 25%, heating to 40 DEG C at a constant temperature, and carrying out ultrasonic cleaning; 2, taking the aluminum veneer out, wiping the aluminum veneer with non-woven fabric and then putting the aluminum veneer into a passivation solution to be soaked for 1-2 min; and 3, putting polyurethane amide hot melt particles into ethanol, and heating at 40 DEG C for 2-3 minutes to generate 10-40wt% of a diluent. According to the method, acetone can generate diacetone alcohol under catalysis of hydrochloric acid, the diacetone alcohol can reduce the viscosity of foreign matter, through the effect of the diacetone alcohol and ultrasonic vibration, the foreign matter attached to the outer surface wall of the aluminum veneer can be rapidly separated, a passivation solution composed of multiple solutions can react with the surface of the cleaned aluminum veneer to form a dense oxidation film with high strength, so that the passivation degree of the aluminum veneer is improved, and the flatness of the surface of the aluminum veneer is ensured.

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