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Bamboo wood reinforcing and synergistic treatment method

A treatment method and enhanced treatment technology, applied in wood treatment, wood treatment details, wood impregnation and other directions, can solve the problems of poor anti-mold and anti-corrosion performance, insufficient strength and hardness, and achieve improved anti-mold and anti-corrosion performance, enhanced dimensional stability, The effect of improving corrosion resistance

Active Publication Date: 2020-03-27
ZHEJIANG FORESTRY ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The artificial fast-growing wood has reached the mature stage and can be felled and used. However, the material of the fast-growing wood is relatively loose, its strength and hardness are not enough, and its anti-mildew and anti-corrosion performance is poor.

Method used

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  • Bamboo wood reinforcing and synergistic treatment method
  • Bamboo wood reinforcing and synergistic treatment method
  • Bamboo wood reinforcing and synergistic treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment 1: early rotted masson pine enhanced treatment

[0049] Test material: early rotten masson pine (50×50×20mm length×width×thickness)

[0050] Put the enhanced synergistic treatment solution 1 in a vacuum reactor, completely immerse the sample, evacuate to 20mbar, keep the vacuum for 3-6h, dry at 103°C to constant weight, impregnate again, and impregnate-dry for 4 cycles. Then the enhanced synergistic treatment solution 3 is soaked and dried for 3 cycles as above.

[0051] The performance test results before and after the initial rotten masson pine treatment are shown in Table 1:

[0052] Table 1

[0053]

[0054]

[0055] It can be seen that the hardness and compressive strength are enhanced after treatment, and the volume shrinkage rate is reduced.

Embodiment 2

[0056] Embodiment 2: Phyllostachys synergistic treatment

[0057] Test material: moso bamboo (50×50×20mm length×width×thickness)

[0058] Put the enhanced and synergistic treatment solution 2 in a vacuum reactor, completely immerse the sample, vacuumize to 20mbar, keep the vacuum for 3-6h, dry to constant weight at 103°C, and impregnate again for 8 cycles.

[0059] The performance test results before and after the treatment of moso bamboo are shown in Table 2:

[0060] Table 2

[0061]

[0062] It can be seen that the volume shrinkage rate after treatment is reduced, and its anti-mildew performance is also significantly improved.

Embodiment 3

[0063] Embodiment 3: fast-growing poplar enhanced synergistic treatment

[0064] Test material: Poplar fast-growing wood (500×50×20mm length×width×thickness)

[0065] Put the enhanced and synergistic treatment solution 5 in a thick plastic bag, put the poplar fast-growing wood sample until submerged, vacuumize the plastic seal, and then place it in an ultra-high pressure equipment, soak it for 30min under the condition of 100-200MPa, and dry it to constant temperature at 103°C. Heavy, soak for 40min under the condition of 100-200MPa, take it out and put it in an oven for 1 hour to cure at high temperature.

[0066] The performance test results of poplar fast-growing wood before and after treatment are shown in Table 3:

[0067] table 3

[0068]

[0069] It can be seen that after treatment, the hardness and compressive strength are enhanced, the volume shrinkage rate is reduced and increased, and the anti-corrosion performance is obviously improved.

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Abstract

The invention relates to a bamboo wood reinforcing and synergistic treatment method. A nano cellulose dispersion liquid is prepared by adopting a sulfuric acid hydrolysis method, nano-zinc oxide is generated on the surface of nano-cellulose in situ by taking the nano cellulose dispersion solution with a certain concentration as a precursor solution, and a cellulose dispersion liquid is compoundedand improved and is impregnated into pores of bamboo wood in a specific mode to fill, bond and reinforce wood tissues, so that the hardness, strength and size stability of the treated material are enhanced, and the mildew-proof and corrosion-proof performance is obviously improved. The method is suitable for reinforcing and synergistic treatment of loose wood such as fast-growing wood and man-madeforests, and is also suitable for reinforcing and repairing of mildly rotten wood.

Description

[0001] (1) Technical field [0002] The invention relates to a method for enhancing and synergizing treatment of bamboo wood. [0003] (2) Background technology [0004] my country's natural forest resources are scarce, while the area of ​​planted forests occupies the largest area in the world. The artificial fast-growing wood has reached the mature stage and can be felled and used. However, the material of the fast-growing wood is relatively loose, the strength and hardness are not enough, and the anti-mildew and anti-corrosion performance is poor. If the fast-growing wood can be properly improved, it can effectively replace imported hard broad-leaved wood and reduce my country's dependence on imported wood. [0005] Nanocellulose (CNC) is a nano-scale fiber material extracted from natural fibers. It has high crystallinity, high strength, large surface area, high reactivity and strong adsorption capacity. The source of nanocellulose raw materials is abundant. The extraction p...

Claims

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Application Information

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IPC IPC(8): B27K3/08B27K5/04B27K3/52
CPCB27K3/08B27K5/04B27K3/52B27K2240/20B27K2240/00B27K3/007B27K3/0285B27K3/0292B27K3/15B27K3/22B27K9/002C08B15/02C08L1/04C08L97/005C08L83/12B27K3/0278B27K3/50
Inventor 于海霞庄晓伟徐漫平张文福潘炘王进
Owner ZHEJIANG FORESTRY ACAD
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