Large-breadth high-strength weather-proof bamboo-wood composite material and manufacturing method thereof

Abstract

The invention discloses a manufacturing method of a large-breadth high-strength weather-proof bamboo-wood composite material. The method comprises the following steps: putting a dried bamboo curtain unit and a wood veneer into a high-pressure impregnation treatment tank, and adding a treatment solution which comprises a phenolic resin adhesive and a mildew-proof preservative into the high-pressureimpregnation treatment tank for impregnation treatment; drying and balancing the impregnated bamboo curtain unit and the impregnated wood veneer, placing the bamboo curtain unit and the wood veneer on a conveying belt for continuous lengthening and assembling treatment, arranging longitudinal bamboo and horizontal wood in a plate blank in a staggered lap joint mode, and performing cutting to obtain the plate blank when the preset thickness and length are achieved; and performing hot press molding and post-treatment on the plate blank in order to obtain the large-breadth high-strength weather-proof bamboo-wood composite material. The bamboo-wood composite material prepared by the invention is infinitely lengthened in the length direction, the transverse binding force is large, and the mildew-proof and corrosion-proof capacity is high.

Description

technical field [0001] The invention belongs to the field of bamboo-wood composite material manufacturing in the wood industry, and relates to the manufacture of bamboo-wood composite recombined wood, in particular to a large-format high-strength weather-resistant bamboo-wood composite material and a manufacturing method thereof. Background technique [0002] Due to the advantages of high longitudinal strength, dimensional stability and good processing performance, the recombined bamboo composite material has great potential application prospects in the field of modern bamboo and wood structure construction. , so that the length of existing bamboo composite materials is generally less than 2m, which cannot be used for the manufacture of large-scale engineering materials and engineering components, which seriously restricts the application and development of bamboo composite materials in the field of construction engineering. In addition, the existing bamboo bundles are all m...

AI Technical Summary

Problems solved by technology

[0002] Due to the advantages of high longitudinal strength, dimensional stability and good processing performance, the recombined bamboo composite material has great potential application prospects in the field of modern bamboo and wood structure construction. , so that the length of existing bamboo composite materials is generally less than 2m, which cannot be used for the manufacture of large-scale engineering materials and engineering components, which seriously restricts the application and development of bamboo composite materials in the field of construction engineering

In addition, the existing bamboo bundles are all manufactured in the longitudinal blanking method, resulting in weak transverse bonding force and insufficient mechanical strength, and cracking defects are prone to occur when used outdoors

In addition, bamboo is a natural biomass material rich in carbohydrates such as starch, which is prone to decay and mildew during use, which seriously affects the service life of bamboo composite materials.

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