A large-scale high-strength weather-resistant bamboo-wood composite material and its manufacturing method

A bamboo-wood composite and manufacturing method technology, applied in the direction of wood impregnation, manufacturing tools, wood treatment, etc., can solve the problem that large-scale engineering materials and engineering components cannot be manufactured, restrict the application and development of bamboo composite materials, and affect bamboo composite materials Material service life and other issues, to achieve the effect of large format size, strong lateral bonding force, and improved lateral tensile strength

Active Publication Date: 2021-03-23
HUNAN TAOHUAJIANG BAMBOO SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • A large-scale high-strength weather-resistant bamboo-wood composite material and its manufacturing method
  • A large-scale high-strength weather-resistant bamboo-wood composite material and its manufacturing method
  • A large-scale high-strength weather-resistant bamboo-wood composite material and its manufacturing method

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Experimental program
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Effect test

Embodiment 1

[0035] Such as figure 1 As shown, a method for manufacturing a large-format high-strength weather-resistant bamboo-wood composite material in this embodiment specifically includes the following steps:

[0036] (1) Bamboo strip unit preparation: Cut fresh moso bamboo into bamboo tubes with a length of 2m. After brushing green and removing bamboo partitions, the bamboo tubes are processed into bamboo tubes with a length of 2m and a thickness of 2mm by using a bamboo loosening machine and a radial crushing machine. radial bamboo strips.

[0037] (2) Bamboo curtain unit weaving: use a weaving machine to weave radial bamboo strips to make bamboo curtains, such as figure 2 As shown, the distance between adjacent bamboo strips is not more than 2mm, and the distance between adjacent sutures is 0.4m, so a bamboo curtain unit with a length of 2m and a width of 2m is obtained.

[0038] When weaving bamboo strips or bamboo bundles into bamboo curtain units, the width of the bamboo curt...

Embodiment 2

[0051] Such as figure 1 As shown, a method for manufacturing a large-format high-strength weather-resistant bamboo-wood composite material in this embodiment specifically includes the following steps:

[0052] (1) Bamboo bundle unit preparation: fresh moso bamboo was cut into bamboo tubes with a length of 1.5 m, and the bamboo tubes were divided into bamboo slices with a width of 25 mm by a bamboo loosening machine, and then rolled into horizontally loose and vertically connected pieces by a decomposer. Loosen the bamboo bundles.

[0053] (2) Bamboo curtain unit weaving: Use a weaving machine to weave bamboo bundles to make bamboo curtains. The distance between adjacent bamboo bundles is not more than 2mm, and the distance between adjacent sutures is 0.3m, resulting in a length of 2m and a width of 1.5mm. m bamboo curtain unit.

[0054] When the bamboo curtain unit is woven with bamboo bundles, the size of the bamboo bundles only needs to be evenly matched, and the selection...

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Abstract

The invention discloses a method for manufacturing a large-format high-strength weather-resistant bamboo-wood composite material, which comprises the following steps: placing dried bamboo curtain units and wood veneers in a high-pressure impregnation treatment tank, adding treatment liquid for impregnation treatment, The treatment liquid includes a phenolic resin adhesive and an anti-mildew preservative; after the impregnated bamboo curtain unit and the wood veneer are dried and balanced, they are placed on a conveyor belt for continuous lengthening and grouping treatment, and the internal arrangement of the slabs adopts bamboo longitudinal Wooden horizontal and upper and lower layers are dislocated and overlapped, and cut off when the preset thickness and length are reached to obtain a slab; the slab is sequentially subjected to hot pressing and post-treatment to obtain a large-format high-strength weather-resistant bamboo-wood composite material, which is produced by the present invention. The bamboo-wood composite material is infinitely extended in the length direction and has a large lateral bonding force and strong anti-mildew and anti-corrosion ability.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27D1/04B27D1/06B27D1/08B27J1/02B27K3/38B27K3/50B27K5/04
CPCB27D1/04B27D1/06B27D1/08B27J1/02B27K3/38B27K3/50B27K5/04B27K2240/20
Inventor 李贤军薛志成李霞镇徐康李婷牟群英郝晓峰杨喜
Owner HUNAN TAOHUAJIANG BAMBOO SCI & TECH CO LTD
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