Bamboo scrap and waste plastic PE composite outdoor building material and application thereof

Abstract

The invention discloses a bamboo scrap and waste plastic PE composite outdoor building material, which is manufactured and formed by mixing 65 weight percent of bamboo scrap, 30 weight percent of waste plastic PE and 5 weight percent of auxiliary agent; and the manufacture forming process after the mixing comprises drying treatment, surface treatment, premixing, granulation, extrusion forming, cooling and cutting. The building material can be prepared into plates, vertical strips of which the shape of the section is a solid rectangle, hollow upright posts, polygonal sections of which the planes are provided with holes and the peripheries are provided with sawtooth and matching semicircular grooves, and the like. The building material has low cost, wide application, and particularly has excellent humidity resistance and moth resistance, so the building material is most suitable to be used as the outdoor building material, realizes resource of waste, and solves the problem of environmental pollution caused by white plastics.

Description

technical field [0001] The invention relates to an outdoor building profile compounded with bamboo chips left over from bamboo processing and waste plastic PE, and belongs to the technical field of building material production and manufacturing. Background technique [0002] my country is a country that is relatively short of timber resources in the world. The forest coverage rate is only equivalent to 3 / 5 of the world's average level, and the per capita forest area is less than 1 / 4 of the world's average level. With the continuous increase of wood consumption, the contradiction between supply and demand has become increasingly prominent. Accelerating the development of wood conservation and substitution is of great significance to meet market demand, curb excessive forest logging, maintain ecological balance, promote sustainable use of forest resources, and maintain my country's international image of actively protecting the natural environment. [0003] Natural wood fiber...

AI Technical Summary

Problems solved by technology

[0004] After searching, there are patent applications related to the production and application of bamboo and plastic composite materials at present, such as the Chinese patent CN1345654 that has been applied for and disclosed, which discloses a composite material of thermoplastics and wood (bamboo) powder. It is made by co-extruding wood powder and thermoplastic plastic, and the surface layer is covered with plastic plastic. Polyethylene copolymer (ABS), which has the advantages of flatness, smoothness and beauty, is suitable for interior decoration buildings, but its cost is higher than that of the old plastic PE

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