Heat-insulation weather-resistant coextru-lamination totally-coated metal profile biomimetic material

Abstract

The invention discloses a heat-insulation weather-resistant coextru-lamination totally-coated metal profile biomimetic material. The material comprises a metal bone profile, a main material composite inner layer and a main material weather-resistant skin layer; the main material composite inner layer is arranged outside the metal bone profile in a totally-coating mode, and the main material weather-resistant skin layer is integrally formed outside the main material composite inner layer in a co-extrusion mode; the cross section of the metal bone profile comprises a metal frame and a metal cover plate, and the metal frame is composed of a rectangular cavity and at least one special-shaped cavity in the middle; full filling is conducted on the exterior of the main material composite inner layer and the exterior of the metal bone profile, and multiple dovetail compomers are formed by the main material composite inner layer and the metal bone profile; the main material composite inner layer is provided with a composite material cover plate, a composite material frame body and a composite material baffle. According to the heat-insulation weather-resistant coextru-lamination totally-coated metal profile biomimetic material, the metal bone profile is totally coated with a composite material in an extruded mode, the heat insulation property reaches the level 6-11, the structural mechanical property is improved by multiple times, the slow fading or even unfading time is 10 years or above, and the linear expansion coefficient reaches 23*10<-5> mm/mm DEG C.

Description

technical field [0001] The invention relates to the technical equipment field of bionic materials, in particular to a bionic material of thermal insulation and weather resistance co-extruded composite fully clad metal profiles. Background technique [0002] Aluminum-plastic-wood composite profiles are composite profiles in which the aluminum core and plastic-wood composite materials are closely combined. This profile integrates metal and plastic-wood, and is compatible with the high strength of metal and the advantages of heat preservation and UV resistance of plastic-wood composite materials. It occupies a very important position in the field of building materials, including structural materials and decoration; The linear thermal expansion coefficients of wood-plastic materials and aluminum materials are very different. When the ambient temperature changes, cracks and deformations will occur at the contact surface between the wood-plastic parts and the aluminum core, which ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned technical problems, the present invention provides a thermal insulation and weather-resistant co-extruded composite fully-coated metal profile bionic material. The extrusion method integrally prepares the weather-resistant leather layer of the main material on the outside of the composite meat layer of the main material, and manufactures a fully-covered metal profile bionic material of thermal insulation and weather-resistant composite material. The fully-covered metal bone profile solves the problem caused by heat conduction. The problem of good heat preservation solves the problem of poor overall structure of broken bridge aluminum and aluminum-clad wood, solves the problem of single product color and poor outdoor weather resistance, and effectively solves the problem of poor overall mechanical properties. The special material reduces the linear expansion coefficient of the polymer composite material itself, so that the weather-resistant skin layer of the main material, the composite meat layer of the main material and the metal bone profile are tightly bonded to each other

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