Furfuryl alcohol modified solution for modifying wood materials or bamboo materials

A modification and furfuryl alcohol technology, which is applied in the field of wood or bamboo processing and preservation, can solve the problems of inability to deeply modify wood, large consumption of furfuryl alcohol, unfavorable solution preservation, etc., to achieve improved dimensional stability, simple process, and improved mechanical properties Effect

Active Publication Date: 2015-04-29
INT CENT FOR BAMBOO & RATTAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this technology are: 1) furfuryl alcohol is not diluted, and the consumption of furfuryl alcohol in the modification process is relatively large, although the modification effect is better, but the cost is higher; 2) no stabilizer or co-solvent is added, so that high concen

Method used

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  • Furfuryl alcohol modified solution for modifying wood materials or bamboo materials
  • Furfuryl alcohol modified solution for modifying wood materials or bamboo materials
  • Furfuryl alcohol modified solution for modifying wood materials or bamboo materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Specific steps: at room temperature 22-25℃,

[0032] With compound organic acid as catalyst: furfuryl alcohol 50%, citric acid 1.15%, oxalic acid 0.6%, borax 2% (Na 2 B 4 O 7 ·10H 2 O), the balance is water. Dissolve citric acid and borax in water, add furfuryl alcohol, stir evenly with a magnetic stirrer, finally add oxalic acid, continue stirring until the solid is completely dissolved, and obtain a uniform, light yellow clear solution; pH 3.90.

Embodiment 2

[0034] Take maleic anhydride as a catalyst: furfuryl alcohol 50%, maleic anhydride 1.75%, borax 2%, and the balance is water. Dissolve maleic anhydride and borax in water, add furfuryl alcohol, and stir evenly with a magnetic stirrer to obtain a uniform, light yellow clear solution. The pH value is 4.01.

Embodiment 3

[0036] At room temperature 22-25℃, with salicylic acid as catalyst: furfuryl alcohol 50%, salicylic acid 1.75%, borax 2% (Na 2 B 4 O 7 ·10H 2 O), the balance is water. Dissolve salicylic acid and borax in water, add furfuryl alcohol, and stir evenly with a magnetic stirrer to obtain a uniform, light yellow clear solution; the pH value is 3.40.

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PUM

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Abstract

The invention provides a furfuryl alcohol modified solution for modifying wood or bamboo furfuryl alcohol resin. The furfuryl alcohol modified solution is characterized by comprising the following components in percentage by weight: 15-70% of furfuryl alcohol, 1-3% of borax, 1.5-2.0% of a catalyst and the balance of water, wherein the catalyst is prepared by compounding citric acid and oxalic acid. The furfuryl alcohol modified solution provided by the invention can be used for performing different degrees of furfuryl alcohol resin modification on wood materials or bamboo materials by virtue of brushing, soaking or pressure impregnation modes, and ensures that the size stability, anti-mildew properties, water resistance and part of mechanical properties of the wood materials or the bamboo materials can be improved.

Description

Technical field [0001] The invention belongs to the processing and preservation field of wood or bamboo, and specifically relates to a process for treating wood or bamboo with an infiltration liquid. Background technique [0002] Wood furfuryl alcohol resin modification technology is to use water or organic alcohol as a solvent to immerse the furfuryl alcohol solution containing catalyst and stabilizer into the wood through the full-cell method. Furfuryl alcohol is solidified in wood cells, intercellular spaces and even cell walls by heating. This technology can significantly improve the physics, mechanics and durability of wood. [0003] In the prior art, the following modification solutions are proposed. For example, the patent US2002 / 0192400A1 uses wood as the modification object, the furfuryl alcohol modification solution uses water as the solvent, and borax, ligninsulfonic acid, etc. are used as stabilizers to keep the modification solution uniform. , Stable; use one or two ...

Claims

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Application Information

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IPC IPC(8): B27K3/52B27K3/08B27K5/04
CPCB27K3/08B27K3/52B27K5/04
Inventor 余雁江泽慧李万菊王汉坤任丹张雪霞于子绚
Owner INT CENT FOR BAMBOO & RATTAN
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