Durable structural wood-plastic laminate for wood buildings in high-humidity environment and preparation method thereof

Abstract

The invention discloses a high-humidity-environment-wooden-building-oriented wood-plastic laminated board for a durable structure and a manufacturing method of the wood-plastic laminated board. The laminated board comprises wood single-layer plates and macromolecule plastic alloy, and the macromolecule plastic alloy is arranged in the wood single-layer plates and among the multiple wood single-layer plates; the wood single-layer plates are low-density fast-growing wood single-layer plates with the thicknesses ranging from 1 mm to 3 mm; the macromolecule plastic alloy is composed of polyethylene with the melting temperature ranging from 130 DEG C to 140 DEG C and polypropylene with the melting temperature ranging from 160 DEG C to 170 DEG C, the mass ratio of the polyethylene to the polypropylene ranges from 80:20 to 50:50, and the mass ratio of the wood single-layer plates to the macromolecule plastic alloy ranges from 70:30 to 30:70. The high-humidity-environment-wooden-building-oriented wood-plastic laminated board can be used for wall boards and roof boards for high-humidity environment wooden buildings, or can be used as laminated plates of dimension stocks and glued timber structures.

Description

technical field [0001] The invention relates to the technical field of building structure engineering, in particular to a durable structural wood-plastic laminate for wood buildings in high-humidity environments and a preparation method thereof. Background technique [0002] With the advancement of industrial technology and the improvement of people's living standards, the demand for public buildings and outdoor garden landscape projects in construction continues to increase. In recent years, my country has introduced advanced manufacturing technology and equipment for modern wood structure buildings from developed countries such as Europe, America and Japan, which has further promoted the development of wood structure buildings in China. However, since wood is a natural biomass composite material, more than 70% of its chemical components are composed of glucose unit polymerization. In addition, wood often contains a certain amount of water, most of which show weak acidity, ...

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Problems solved by technology

[0009] The purpose of the present invention is to provide a wood-plastic laminate for durable structures and its preparation method for wooden buildings in high-humidity environments, which solves the problem that traditional wood composite materials contain toxic components, and the preservatives contained in conventional anticorrosive wood are harmful to the environment and humans. Negative impact, the preparation process of traditional wood-plastic composite materials makes the product unable to achieve both appearance decoration effect, anti-corrosion and insect-proof performance, and mechanical properties.

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