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Preparation method of light aging-resistant outdoor recombinant bamboo wood board

A technology of recombining bamboo and light aging resistance, which is applied in the jointing of wooden veneers, wood treatment, impregnating wood, etc., can solve the problems of water resistance, poor weather resistance, weak light aging resistance, and easy mildew, etc., to improve light aging resistance Performance, improvement of water resistance, effect of color protection

Inactive Publication Date: 2018-06-29
汪逸凡
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the problems of poor water resistance, weather resistance, weak light aging resistance and easy mildew when recombinant bamboo is applied outdoors, a preparation method of outdoor recombinant bamboo board with light aging resistance is provided

Method used

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  • Preparation method of light aging-resistant outdoor recombinant bamboo wood board

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example 1

[0021] Saw the hemp bamboo into a 1m-long bamboo tube, divide it into 4 pieces along the longitudinal direction, send the divided bamboo material to the bamboo wood rolling and splitting machine, roll it flat and remove the green and yellow, and then divide it from the chord direction of the bamboo piece 2. To obtain bamboo bundles, put the bamboo bundles into a bamboo decomposer to decompose twice, and decompose them into fibrous bamboo bundles with uniform thickness and place them on a steamer. The steamer is filled with camphor oil and carried out under steam protection atmosphere. Smoked for 2 hours, controlled at 200°C, placed in a drying oven and dried to a moisture content of 6% after smoking to obtain pretreated bamboo bundles, which were impregnated in phenolic resin with a solid content of 20% for 4 minutes, controlled The amount of dipping is 12%, and then placed in a drying oven to dry to a moisture content of 8%, and the dipped bamboo bundles are obtained, and the ...

example 2

[0023] Saw the hemp bamboo into 1.5m long bamboo tubes, divide them into 6 pieces along the longitudinal direction, send the divided bamboo materials to the bamboo wood rolling and splitting machine, roll them flat and remove green and yellow, and then divide them from the chord direction of the bamboo pieces For two, get bamboo bundles, put the bamboo bundles into the bamboo decomposing machine and decompose twice, and decompose into fibrous bamboo bundles with uniform thickness and place them on the steamer. The steamer is equipped with camphor oil. Carry out smoking treatment for 2.5 hours, control the temperature at 220°C, put it in a drying oven and dry it to a moisture content of 7% after smoking, and obtain pretreated bamboo bundles, and impregnate the pretreated bamboo bundles in phenolic resin with a solid content of 20% for 5 minutes , control the amount of dipping to 13%, and then place it in a drying oven to dry to a moisture content of 9%. The bamboo bundles are tr...

example 3

[0025] Saw the hemp bamboo into 2m long bamboo tubes, divide them into 8 pieces along the longitudinal direction, send the divided bamboo materials to the bamboo wood rolling and splitting machine, roll them flat and remove green and yellow, and then divide them into 8 pieces from the chord direction of the bamboo pieces 2. To obtain bamboo bundles, put the bamboo bundles into a bamboo decomposer and decompose 3 times, and decompose into fibrous bamboo bundles with uniform thickness and put them on the steamer. The steamer is equipped with camphor oil, and it is carried out under the steam protection atmosphere. Smoked for 3 hours, controlled at 240°C, placed in a drying oven to dry to a moisture content of 8% after smoking, to obtain pretreated bamboo bundles, which were impregnated in phenolic resin with a solid content of 20% for 6 minutes, controlled The amount of dipping is 14%, and then placed in a drying oven to dry until the moisture content is 10%. The dipped bamboo bu...

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Abstract

The invention relates to a preparation method of a light aging-resistant outdoor recombinant bamboo wood board and belongs to the technical field of bamboo products. By fumigating bamboo bundles, lignin is cracked and crosslinked to form a more stable structure and generate many phenol components and antioxidant components, absorption of ultraviolet light is reduced obviously, and the light aging-resistance of the material is improved. Meanwhile, pores generated by cracking and crosslinking lignin cure and lock camphor oil in the bamboo bundles to achieve the purpose of continuously releasingthe camphor oil; the camphor oil and the generated many phenol components and antioxidant components form a barrier to coat the bamboo bundles to hinder permeation of water, so that the water resistance and the durability of the bamboo bundles are improved. By veneering the surfaces of the recombinant bamboos with fiber cloth layers, an ultraviolet shielding system suitable for the recombinant bamboos is constructed, and is high in ultraviolet shielding property and high in visible light transmittance. The light aging-resistant outdoor recombinant bamboo wood board also has a good protective effect to the shielding system while protecting a base material, and the color and luster of the recombinant bamboos can be protected effectively.

Description

technical field [0001] The invention relates to a preparation method of an outdoor recombined bamboo board resistant to light aging, which belongs to the technical field of bamboo products. Background technique [0002] In the past 30 years, my country's bamboo industrial utilization technology and products have developed rapidly. Recombined bamboo is one of the representative products of bamboo industrial utilization. Due to its good physical and mechanical properties and high utilization rate, it has become my country's It is one of the advantageous industries with the most development potential in the bamboo industry. After more than ten years of development, the production capacity of restructured bamboo flooring has surpassed that of bamboo glulam flooring. In recent years, the application field of recombined bamboo has expanded from indoor to outdoor. The main problem faced by recombined bamboo in outdoor application is weather resistance, mainly including water resist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27J1/00B27K5/00B27K3/04B27K5/04B27K3/34B27K3/02B27D1/10B32B21/10
Inventor 汪逸凡王文新史玉玲
Owner 汪逸凡
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