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Composition for modifying wood, preparation method and application thereof

A wood modification and composition technology, which is applied in the direction of wood impregnation, impregnated wood, wood processing equipment, etc., can solve the problems of poor material, low density and surface hardness, and limited application range, etc., to achieve improved dimensional stability and energy saving Good, the effect of overcoming cracking and deformation

Inactive Publication Date: 2012-08-22
EVERFIRST WISEFUND TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Plantation forest wood mainly includes fir, larch, poplar, paulownia, eucalyptus and other tree species, which have the characteristics of fast growth, high yield, and short harvesting cycle. Poor, low density and surface hardness limit its application range

Method used

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  • Composition for modifying wood, preparation method and application thereof
  • Composition for modifying wood, preparation method and application thereof
  • Composition for modifying wood, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] One, the preparation of composition for wood modification

[0034] Take each component (unit: Kg) phosphoric acid (content is 98%) by following weight: 253, urea (purity is 98%, industrial grade): 126, borax (industrial grade, purity 95%): 13, hydrogen phosphate Diammonium: 88, ammonium chloride: 13, water: 507; add the above-mentioned components into the reaction kettle, mix well at room temperature, adjust the pH value of the mixture to 5.0-6.0 with sodium hydroxide, and obtain the product.

[0035] 2. Application of composition for wood modification

[0036] (1) Put the eucalyptus wood to be treated into a pressurized impregnation tank and then vacuumize it, and inhale 2 / 3~3 / 4 of the present embodiment by weight under the vacuum condition of -0.09~-0.095MPa. The prepared wood modification composition;

[0037] (2) After the vacuum is released, pressurize and impregnate the wood with the rest of the wood modification composition under a pressure of 1.0-1.5 MPa for 3...

Embodiment 2

[0042] One, the preparation of composition for wood modification

[0043] Weigh each component by the following weight (unit: Kg) phosphoric acid (content is 98%): 250, acetylurea: 129, sodium borate crystal (industrial grade, purity 95%): 16, diammonium hydrogen phosphate: 85, chlorine Ammonium chloride: 13, water: 507; add the above-mentioned components into the reaction kettle, mix well at room temperature, adjust the pH value of the mixture to 5.0-6.0 with sodium hydroxide, and obtain the product.

[0044] 2. Application of composition for wood modification

[0045] (1) Put the eucalyptus wood to be treated into a pressurized impregnation tank and then vacuumize it, and inhale 2 / 3~3 / 4 of the present embodiment by weight under the vacuum condition of -0.09~-0.095MPa. The prepared wood modification composition;

[0046] (2) After the vacuum is released, pressurize and impregnate the wood with the rest of the wood modification composition under a pressure of 1.0-1.5 MPa for...

Embodiment 3

[0051] One, the preparation of composition for wood modification

[0052] Take each component (unit: Kg) phosphoric acid (content is 98%) by following weight: 253, triethylenetetramine: 120, borax (industrial grade, purity 95%): 19, diammonium hydrogen phosphate: 86, chlorine Ammonium chloride: 23, water: 497; add the above-mentioned components into the reaction kettle, mix well at room temperature, adjust the pH value of the mixture to 5.0-6.0 with sodium hydroxide, and obtain the product.

[0053] 2. Application of composition for wood modification

[0054] (1) Put the paulownia wood to be treated into a pressurized impregnation tank and then vacuumize it, and suck 2 / 3~3 / 4 parts by weight of the present embodiment under the vacuum condition of -0.09~-0.095MPa. The prepared wood modification composition;

[0055] (2) After the vacuum is released, pressurize and impregnate the wood with the rest of the wood modification composition under a pressure of 1.0-1.5 MPa for 3 hours...

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Abstract

The invention discloses a composition for modifying wood, a preparation method and application thereof. The composition for modifying wood comprises the following components in part by weight: 200 to 400 parts of phosphoric acid, 100 to 300 parts of nitrogen-containing organic substance, 10 to 15 parts of borate, 70 to 100 parts of diammonium hydrogen phosphate, 10 to 40 parts of ammonium chloride and 400 to 700 parts of water. After plantation wood is chemically modified by the composition, the size stability of the modified wood is obviously improved, the defects of cracking deformation before treatment during use and the like are overcome, physical mechanical property is obviously improved and the properties of flame retardant, moth proof, mildew proof, corrosion resistant and the likeare improved. The color of the modified wood remains essentially unchanged; in the whole modification process, the treating liquid can be reused; the process is simple without complicated steaming equipment; the production process has no pollution to the environment; and the processed product does not have substances against the health of people.

Description

technical field [0001] The invention relates to a composition for treating wood, in particular to a composition for wood modification and a preparation method thereof. The invention also relates to the application of the wood modification composition in wood modification and wood processing, which belongs to the field of forestry chemical industry. Background technique [0002] With the development of the economy and the improvement of people's living standards, the demand for wood is increasing all over the world. The world's total wood consumption capacity is also increasing rapidly. For well-known reasons, although wood is a renewable resource, due to constraints such as the long growth cycle of high-grade wood, the trend of lack of wood resources is becoming more and more serious. The contradiction between supply and demand of timber worldwide is becoming increasingly prominent. China is a country with relatively low forest coverage, especially the recent implementatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K3/52
Inventor 雷得定李德永邓雄飞
Owner EVERFIRST WISEFUND TECH BEIJING
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