Fireproof environment-friendly aluminum-plastic composite board and preparing method thereof

Abstract

The invention provides a fireproof environment-friendly aluminum-plastic composite board and a preparing method thereof. The composite board is formed by compounding a surface aluminum board, a halogen-free adhesive layer, a flame retardant polyethylene core layer, halogen-free adhesive layer and a bottom aluminum board. The core layer is formed by halogen-free flame retardant with aluminum hydroxide as a principal component, continuous activation is carried out, and refining composite coupling processing is carried out on the surface of the core layer, the fireproof environment-friendly aluminum-plastic composite board has excellent flame retardance and smoke suppression performance and carbon forming and molten drop preventing performance, the fireproof environment-friendly aluminum-plastic composite board can absorb heat and be dewatered at a high temperature, heat generated through combustion can be taken away, combustion speed can be lowered, flame spreading can be prevented, dense smoke and poisonous gas cannot be generated, and secondary pollution cannot be caused to the environment. Compared with the prior art, combustion performance is improved effectively, quality is stable and controllable, manufacturing is easy and convenient, industrialized production is easy to form, the performance requirements of fire safety of building and ornament materials by our country can be met completely, the important policies and guidelines of replacing wood with plastics, energy conservation and environment protection, security protection and the like of our country are met completely, and the fireproof environment-friendly aluminum-plastic composite board is widely applied to the fields of outer walls of buildings, curtain wall boards, old building renovation, indoor walls, ceiling decorations, advertising boards and the like.

Description

technical field [0001] The invention relates to the technical field of aluminum-plastic composite decorative materials, in particular to a fireproof and environment-friendly aluminum-plastic composite board and a preparation method thereof. Background technique [0002] The aluminum-plastic composite panel usually has a five-layer composite composition of a surface aluminum plate, an adhesive layer, a plastic sheet core layer, an adhesive layer, and a bottom aluminum plate (customarily called a three-layer composite panel). The two aluminum surfaces of the composite board are generally coated with chemical treatment. The thickness of the aluminum board is generally 0.20mm (the minimum thickness is not less than 0.10mm). The total thickness of the composite board: for building curtain walls is generally not less than 4mm, for interior decoration Generally not less than 3mm. Aluminum-plastic composite panel is a new type of ecological environment building material. Since the...

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Problems solved by technology

[0003] The main body of the aluminum-plastic composite board is the core layer. The plastic sheet of the early core layer is a flammable polymer material such as polystyrene and nylon. The food circulation chain enters the human body and is difficult to metabolize, so it has long been eliminated; later, polyvinyl chloride material was used as the core layer. Although the PVC material has certain flame retardant properties, it produces a large amount of smoke when burned, which not only does not meet environmental protection requirements And once burned, a large amount of toxic smoke is released, which brings great difficulties to firefighting, escape, lifesaving and other work and takes precious lives of people; in recent years, the core layer of aluminum-plastic composite board is an ordinary poly Vinyl plastics are flammable materials with poor flame retardancy, generally below the C level of the GB8624-2006 standard, which lays a hidden danger for fires

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