Preparation method of high-strength recombined bamboo material for building home decoration

A high-strength, recombined bamboo technology, which is applied in the field of building materials, can solve the problems of poor mechanical strength and susceptibility to moisture and mildew, and achieve the effects of reducing water absorption, improving mechanical properties and moisture-proof performance, and reducing impurity content

Inactive Publication Date: 2021-11-19
湖南创威科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Recombined bamboo is made by decomposing bamboo into loose net-like fiber bundles that are mutually cross-linked and maintains the original arrangement of fibers. As a substitute for wood, high-strength, large-format, and natural bamboo-textured squares or panels of certain specifications have the characteristics of high bamboo utilization, beautiful appearance, and low cost, but there are also certain defects, such as mechanical Poor strength, susceptible to damp and mildew, etc., which limits its application to a certain extent

Method used

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  • Preparation method of high-strength recombined bamboo material for building home decoration

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preparation example Construction

[0013] A preparation method of high-strength recombined bamboo material for building home decoration, comprising the following steps:

[0014] S1: Soften the bamboo slices and then roll and comb them to make bamboo fiber bundles;

[0015] S2: After the bamboo fiber bundles are treated with solution A and solution B, they are cured at high temperature to obtain reinforced bamboo fiber bundles. The solution A includes furfuryl alcohol resin, polyacrylic acid, and modified nanocrystalline cellulose, and the solution B includes crosslinked agent;

[0016] S3: The reinforced bamboo fiber bundle is impregnated in phenolic resin, taken out and dried, assembled into a blank, and finally heat-pressed.

[0017] Further, the bamboo chips in S1 have been softened three times, and after each softening treatment, all need to be washed with water until no softener remains on the bamboo chips. The softeners used in the three softening treatments are respectively the first softener glacial ac...

Embodiment 1

[0035] A preparation method of high-strength recombined bamboo material for building home decoration, comprising the following steps:

[0036] S1: the bamboo chips of 100 mass parts are added in the glacial acetic acid solution (mass concentration 5%) of 800 mass parts, normal temperature and pressure immersion 20h, take out and wash to neutrality and then add 800 mass parts of potassium carbonate solution solution (mass concentration 4%), soaked at normal temperature and pressure for 20 hours, took it out and washed it until neutral, then added 800 parts by mass of the third softener, soaked at normal temperature and pressure for 10 hours, and the third softener consisted of MJB-NS softener, triethanolamine, ethanol , water composition;

[0037] Among them, the mass ratio of ethanol and water is 1:3, the amount of MJB-NS softener is 8% of the total mass of ethanol and water, and the amount of triethanolamine is 1% of the mass of MJB-NS softener;

[0038] Take it out, wash it...

Embodiment 2

[0047] A preparation method of high-strength recombined bamboo material for building home decoration, comprising the following steps:

[0048]S1: the bamboo chips of 100 mass parts are added in the glacial acetic acid solution (mass concentration 6%) of 800 mass parts, normal temperature and pressure immersion 20h, take out the potassium carbonate solution solution that adds 800 mass parts again after washing to neutrality (mass concentration 5%), soaked at normal temperature and pressure for 15 hours, took it out and washed it until neutral, then added 800 parts by mass of the third softener, and soaked it for 10 hours at normal temperature and pressure. The third softener consisted of MJB-NS softener, triethanolamine, ethanol , water composition;

[0049] Among them, the mass ratio of ethanol and water is 1:3, the amount of MJB-NS softener is 10% of the total mass of ethanol and water, and the amount of triethanolamine is 2% of the mass of MJB-NS softener;

[0050] Take it ...

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Abstract

The invention relates to the field of building materials, and in particular, relates to a preparation method of a high-strength recombined bamboo material for building home decoration, wherein the preparation method comprises the steps: softening bamboo chips, rolling, combing to prepare bamboo fiber bundles, treating the bamboo fiber bundles with a solution A and a solution B, and curing at high temperature to obtain reinforced bamboo fiber bundles, wherein the solution A comprises furfuryl alcohol resin, polyacrylic acid and modified nanocrystalline cellulose, and the solution B comprises a cross-linking agent; and soaking the reinforced bamboo fiber bundles in phenolic resin, taking out, drying, assembling and finally carrying out hot press molding. The recombined bamboo material prepared through the method has the excellent mechanical property; and due to the fact that the internal cross-linking degree is increased, pores are reduced, the water absorption rate is reduced, the size stability is high, and certain moisture-proof and mildew-proof effects are achieved.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a method for preparing high-strength recombined bamboo materials for building and home decoration. Background technique [0002] Bamboo has the characteristics of rich resources, strong reproduction and regeneration ability, short growth cycle, and excellent material properties, so the commercial and industrial value of bamboo is very obvious. Moreover, bamboo also has good processing performance, and different types of bamboo products can be produced by mechanical processing or chemical treatment. In order to alleviate the increasingly serious contradiction between wood supply and demand, the wood consumption can be effectively reduced by replacing wood with bamboo. [0003] Recombined bamboo is made by decomposing bamboo into loose net-like fiber bundles that are mutually cross-linked and maintains the original arrangement of fibers. As a substitute for wood, high-strength, ...

Claims

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Application Information

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IPC IPC(8): C08J5/06C08L61/06C08L97/02C08L61/00C08L33/02C08L1/04
CPCC08J5/06C08J2361/06C08J2497/02C08J2461/00C08J2433/02C08J2401/04
Inventor 陈志高
Owner 湖南创威科技有限公司
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