Preparation method of weather-resistant aluminum alloy wood grain transfer printing sections

Abstract

The invention discloses a preparation method of weather-resistant aluminum alloy wood grain transfer printing sections. The method comprises the steps of surface treatment on aluminum alloy base materials, electrostatic spraying and solidification of wood grain transfer printing paint and wood grain transfer printing; in the electrostatic spraying process of the wood grain transfer printing paint,the wood grain transfer printing paint is prepared from polyester resin, epoxy resin, acrylic resin, nano cellulose, precipitated barium sulfate, montmorillonite, nano titanium dioxide, fumed silica,calcium carbonate, nano-alumina, glycerin, tetraethylammonium bromide, triglycidyl isocyanurate, a leveling agent, benzoin, polyethylene wax, pigment and an ultraviolet absorber UV-0. The preparationmethod of the weather-resistant aluminum alloy wood grain transfer printing sections is simple in process and mild in condition, and the obtained aluminum alloy wood grain transfer printing sectionsare good in weather resistance and excellent in heat resistance.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to a preparation method of a weather-resistant aluminum alloy wood grain transfer profile. Background technique [0002] Aluminum alloy wood grain transfer profiles have the advantages of not easy to fade, realistic wood grain, and high product grades. At present, they have been widely used in aluminum alloy doors and windows, security doors, fire doors, steel and wood furniture, filing cabinets, computer casings, and household appliances. , metal accessories and other fields. There are two types of wood grain transfer printing on aluminum profiles: electrostatic spraying and electrophoresis. Among them, the method of electrostatic spraying is to coat a layer of thermosetting organic polymer powder on the surface of the aluminum profile, and after high temperature curing, a certain permeability is formed on the surface of the profile. Compared with the electrophoretic coati...

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Problems solved by technology

There are two types of wood grain transfer printing on aluminum profiles: electrostatic spraying and electrophoresis. Among them, the method of electrostatic spraying is to coat a layer of thermosetting organic polymer powder on the surface of the aluminum profile, and after high temperature curing, a certain permeability is formed on the surface of the profile. Compared with the electrophoretic coating surface treatment method, it is environmentally friendly, the mechanical properties of the coating film such as hardness, wear resistance, impact resistance and other indicators are high, and the service life is long. The advantage of rich colors has become a hot spot in the surface coating of aluminum profiles in China. However, the aluminum alloy wood grain transfer profiles obtained by this method often have the defect of poor weather resistance, which limits its application.