Modified composite wooden material and preparing method of modified composite wooden material

A wood material modification technology, applied in the direction of impregnated wood, wood impregnation, wood processing equipment, etc., can solve the problems of toxicity, increase wood combustibility, unfavorable to health and environmental protection, etc., and achieve the effect of superior physical properties

Inactive Publication Date: 2012-07-25
辽宁美联复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above wood material modifiers all use toxic and harmful organic polymer means, which not only introduces toxic and harmful substances, which is not conducive to health and environmental protection, but also increases the combustibility of wood

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0017] The preparation method of modified composite wood material:

[0018] Mixing of compound raw materials and liquid medium: the compound raw materials and liquid medium are added to the reactor and stirred and mixed until they are evenly mixed. The mixing process used includes: stirring and mixing at normal temperature and pressure; stirring and mixing at normal temperature and pressure at 1.1~3.5 ATM; heating for 30 Stir and mix under normal pressure at ℃~120°C; stir and mix at 30°C~120°C and pressurize at 1.1~3.5 ATM, and the mixing time is 1~24 hours;

[0019] Cooling, solid-liquid separation: after mixing, the mixture obtained above is introduced into the cooling system, cooled by circulating cooling water, and then solid-liquid separation is carried out, and the obtained liquid is a liquid modifier;

[0020] Combination of wood materials and liquid modifiers: liquid modifiers are added to the fiber voids of wood through the process of adsorption and devolati...

Embodiment 1

[0033] Take a 5000 ml round bottom flask, add 2500 ml of water, 6 g of Q8TMA8, 400 g of ammonium polyphosphate, 100.15 g of ammonium bisulfate, mix well; add a water condenser, heat back to distill for 4 hours; stop heating; filter with suction, The liquid is a wood modifier. Soak a piece of 12cm X 30cm X 3cm poplar wood in the obtained wood liquid modifier, soak for 4 hours at 45°C and 600mmHg, then release the vacuum, take out the wood, place it until there is no dripping out, and place it at 50°C The modified composite wood material was obtained by drying to constant weight under high pressure conditions.

Embodiment 2

[0035] Take a 5000 ml round bottom flask, add 2500 ml of water, 4 g of 8000 mesh ultrafine boron phosphate powder, 400 g of magnesium nitrate, 66 g of ammonium dihydrogen phosphate, 140 g of calcium metaborate, and mix well; add a water condenser , heated and stirred at 85° C. for two hours; stopped heating; filtered with suction, and the obtained liquid was a wood liquid modifier. Soak a piece of poplar wood of 12cm X 30cm X 3cm under the normal pressure of 25°C, and soak it in the wood liquid modifier for two hours, take out the wood block, place it until there is no dripping out, and put it under the normal pressure condition of 50°C Dry to constant weight to obtain modified composite wood material.

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PUM

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Abstract

The invention provides a modified composite wooden material, wherein a compound ingredient which contains at least more than three of the elements of silicon, nitrogen, phosphorus, magnesium and boron is added into wood; the wood can be cork wood, fast-growing wood or wood of low quality; and a modifier with a good seepage force is adopted. The preparing method of the modified composite wooden material comprises the steps of adding the ingredient and a liquid medium into a reactor kettle, mixing, stirring, heating and carrying out solid-liquid separation so as to obtain a liquid modifier; adding the liquid modifier into the fiber gaps of the wood through absorption and volatile matter elimination; and drying so as to obtain the modified composite wooden material. The modified composite wooden material has outstanding functions in mechanics, physics and fireproof and has the application value in partially replacing precious wood, so that the waste is turned into wealth, and the resource is used effectively.

Description

technical field [0001] The invention relates to a composite wood material and a preparation method thereof, in particular to a modified composite wood material capable of improving the physical properties and mechanical properties of inferior wood so that the inferior wood can achieve the performance of high-quality wood and a preparation method thereof. Background technique [0002] Modification of wood materials refers to the application of contemporary physical and chemical technologies to treat wood, overcome the defects of inferior wood, improve its physical, mechanical, anti-corrosion, anti-aging and other properties, and prolong its service life, that is, to improve the use grade and commercial value of wood. . The modified wood can be used in fields that cannot be applied before modification, such as: solid wood and solid wood composite flooring, furniture, wooden fire doors, fireproof wooden keels, various boards, container bottom plates and other fields of use. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/08B27K3/50B27K3/52
Inventor 刘启波
Owner 辽宁美联复合材料有限公司
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