Laminated aluminum alloy template and preparation method thereof

Abstract

The invention discloses a laminated aluminum alloy template and preparation method thereof. The laminated aluminum alloy template comprises an aluminum alloy template base material and a coating formed on the surface of the aluminum alloy template base material, the coating is formed by curing paint, the paint is prepared from the following raw materials in parts by weight: 50 to 80 parts of titanium-based / nickel-clad aluminum powder, 20 to 30 parts of silica powder, 50 to 80 parts of glycerinum, 100 to 150 parts of polyurethane acrylate, 50 to 100 parts of fluorocarbon resin, 5 to 10 parts ofa fluorine surfactant, 10 to 15 parts of hydrophobic powder, 5 to 7 parts of a dispersant, 2 to 5 parts of a defoamer, 7 to 15 parts of a curing agent, the thickness of the coating is 20 to 30 mu m,the laminated aluminum alloy template prepared by the invention can be used without a mold discharging agent, the surface is smooth after demolding, no concrete is stuck and no reaction with the concrete exists, the laminated coating is tightly adhered to the aluminum alloy template, is not easy to fall off, flake, and is more in aluminum alloy template turnover times, and high in wear resistance.

Description

technical field [0001] The invention relates to the technical field of building aluminum alloy templates, in particular to a film-coated aluminum alloy template and a preparation method thereof. Background technique [0002] Aluminum formwork is a building formwork made of aluminum alloy, also known as aluminum alloy formwork. It refers to the design according to the modulus. The aluminum formwork is extruded by special equipment. , has a complete set of general accessories for supporting use, and can be combined and assembled into an overall formwork with complex dimensions of different sizes. It is a system formwork for assembly and industrial construction. The aluminum alloy formwork solves the defects of the traditional formwork in the past and greatly improves the construction efficiency. Aluminum alloy building formwork is suitable for wall formwork, horizontal floor slabs, columns, beams, climbing formwork, bridges and other formwork. It can be assembled into small, ...

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Problems solved by technology

However, in actual use, long-term direct contact between the aluminum alloy formwork and concrete or repeated use of the aluminum alloy formwork will easily cause corrosion on the surface of the aluminum alloy formwork, and the surface quality and strength of the aluminum alloy formwork will decline. The alloy formwork is firmly bonded to the solidified concrete. During the demoulding process, the aluminum alloy formwork is easily deformed due to force, which will affect the recycling of the aluminum formwork. Therefore, in recent years, the aluminum formwork is often brushed with a release agent during actual use. , but if the residual concrete slurry on the surface of the aluminum formwork is not cleaned and the release agent is applied, it will cause defects such as pockmarks on the concrete surface during construction. If the release agent is not evenly applied or the thickness of the application is improper, it will cause concrete pollution and prevent isolation. If the layer is damaged, it needs to be repaired, which will cause redundant workload. If the method of coating the aluminum alloy formwork is used, it can avoid brushing the release agent, but there is still a weak bond between the film layer and the aluminum alloy formwork. After use, the film layer The phenomenon of shedding occurs

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