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Bamboo-wood fiber board using bio-based non-formaldehyde adhesive and preparation method thereof

A bamboo and wood fiber and aldehyde-free glue technology is applied in the field of fiberboard processing, which can solve the problems of poor water resistance of fiberboard, inconvenient fiberboard, low mechanical properties, etc., and achieve the effects of improving strength and water resistance, fast curing speed and high reactivity.

Pending Publication Date: 2020-06-02
杨晨露
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, formaldehyde will be generated when fiberboard is used, and the water resistance and mechanical properties of fiberboard are poor, which brings inconvenience to the application of fiberboard

Method used

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  • Bamboo-wood fiber board using bio-based non-formaldehyde adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] S1: Preparation of the first fiber: Take bamboo fiber and wood fiber respectively, cut them into 5 cm small pieces, mix and stir for 20 minutes, and place in air to dry to obtain the first fiber;

[0059] S2: Preparation of the second fiber:

[0060] Take anhydrous aluminum chloride, aluminum powder and water, dissolve anhydrous aluminum chloride in water, add aluminum powder after the reaction is complete, react for 2 hours, filter, add magnesium lactate to the filtrate, stir for 10 minutes, then add acetic acid, continue stirring 20min, vacuum distillation, obtain spinning solution;

[0061] Take the spinning solution, spin it in a high-speed centrifugal at a centrifugal speed of 20,000 r / min, then spray it under a high-speed hot air flow, draw and solidify, the temperature of the hot air flow is 50°C, and the speed of the hot air flow is 10m / s to obtain spun fibers;

[0062] Then place the spun fiber in an electric furnace, raise the temperature to 590°C at a rate o...

Embodiment 2

[0078]S1: Preparation of the first fiber: Take bamboo fiber and wood fiber respectively, cut them into 6 cm small pieces, mix and stir for 25 minutes, and place in air to dry to obtain the first fiber;

[0079] S2: Preparation of the second fiber:

[0080] Take anhydrous aluminum chloride, aluminum powder and water, dissolve anhydrous aluminum chloride in water, add aluminum powder after the reaction is complete, react for 2.5 hours, filter, add magnesium lactate to the filtrate, stir for 15 minutes, then add acetic acid, continue Stir for 25min, and distill under reduced pressure to obtain spinning solution;

[0081] Take the spinning solution, spin it in a high-speed centrifugal at a centrifugal speed of 25,000r / min, then blow it under a high-speed hot air flow, draw and solidify, the temperature of the hot air flow is 55°C, and the speed of the hot air flow is 30m / s to obtain spun fibers;

[0082] Then place the spun fiber in an electric furnace, raise the temperature to 5...

Embodiment 3

[0098] S1: Preparation of the first fiber: take bamboo fiber and wood fiber respectively, cut them into small pieces of 8 cm, mix and stir for 30 minutes, and place them in air to dry to obtain the first fiber;

[0099] S2: Preparation of the second fiber:

[0100] Take anhydrous aluminum chloride, aluminum powder and water, dissolve anhydrous aluminum chloride in water, add aluminum powder after the reaction is complete, react for 3 hours, filter, add magnesium lactate to the filtrate, stir for 20 minutes, then add acetic acid, continue stirring 30min, vacuum distillation, obtain spinning solution;

[0101] Take the spinning solution, spin it in a high-speed centrifugal at a centrifugal speed of 30,000 r / min, then spray it under a high-speed hot air flow, draw and solidify, the temperature of the hot air flow is 60°C, and the speed of the hot air flow is 50m / s to obtain spun fibers;

[0102] Then place the spun fiber in an electric furnace, raise the temperature to 600°C at ...

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Abstract

The invention discloses a bamboo-wood fiber board using bio-based non-formaldehyde adhesive and a preparation method thereof. The fiber board comprises the raw materials of, by weight, 60-70 parts offirst fiber, 6-10 parts of second fiber, 10-20 parts of adhesives, 25-35 parts of hydrophobic auxiliary agents, 6-8 parts of additives and 6-8 parts of modifiers. The second fiber is prepared from anhydrous aluminum chloride, aluminum powder, water, magnesium lactate and acetic acid, a sol-gel method is adopted during preparation, and the anhydrous aluminum chloride, the aluminum powder and the water are polymerized under a reaction condition to form a linear polymer to obtain polyaluminium chloride sol; and the magnesium lactate is added, the acetic acid is used as a stabilizer, and a spinning solution is obtained by stirring and reduced pressure distillation. According to the fiber board and the preparation method, the bamboo-wood fiber board is reasonable in component design and simplein process operation, the prepared bamboo-wood fiber board does not contain formaldehyde, benzene and xylene toxic substance release, formaldehyde pollution is effectively avoided, and the bamboo-woodfiber board has excellent mechanical property, high strength, excellent hydrophobic property and high practicability.

Description

technical field [0001] The invention relates to the technical field of fiberboard processing, in particular to a bamboo-wood fiberboard using bio-based formaldehyde-free glue and a preparation method thereof. Background technique [0002] Fiberboard, also known as density board, is a wood-based panel made of wood fiber or other vegetable fiber and applied with urea-formaldehyde resin or other suitable adhesives. Adhesives and additives can be applied during the manufacturing process. Fiberboard has the advantages of uniform material, small vertical and horizontal strength difference, not easy to crack, etc., and has a wide range of uses. [0003] The adhesives used today are generally phenolic resins, which will produce a large amount of formaldehyde when used. Formaldehyde is one of the main sources of pollution of toxic and harmful gases for interior decoration. It is a highly irritating chemical substance and has been listed as I by the World Health Organization. Carcin...

Claims

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Application Information

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IPC IPC(8): B27N3/00B27N3/04B27N3/20D01F9/08C08L79/02C08L29/04C08L97/00C08L3/10C08L33/26C04B35/622
CPCB27N3/002B27N3/04B27N3/203C04B35/62236C04B35/62263C04B2235/3206C04B2235/3217C04B2235/656C04B2235/6562C04B2235/6567C08L79/02C08L2205/035D01F9/08C08L29/04C08L97/005C08L3/10C08L33/26
Inventor 杨晨露
Owner 杨晨露
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