Wood modification working liquid used for wet plate processing and use method thereof

A wood modification and working fluid technology, applied in wood treatment, wood impregnation, wood impregnation, etc., can solve the problems of high energy consumption and production cost, high formaldehyde emission, poor reusability, etc., and achieve good flame retardancy, The effect of improving economic value and strong anti-loss performance

Inactive Publication Date: 2015-09-23
YANGPUJIU JUTAI WOOD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Existing wood modifier, the main component is urea-formaldehyde resin or phenolic resin, the product formaldehyde release amount of making is high, not environmental protection, urea-formaldehyde resin or phenolic resin also exists storage short, reusability is poor (will gradually self-polymerize, solidify ), high production costs and other defects
In addition, when using such a wood modifier, the wood needs to be dried (with a moisture content of less than 20%) before it can be impregnated, resulting in high energy consumption and production costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] (1) Put the poplar slab (moisture content 20%, thickness 20mm) into the impregnation tank, and perform the following three impregnation cycles: vacuumize to vacuum degree -0.06Mpa, keep for 30 minutes, and then inject wood modification working solution, Pressurize to 0.2Mpa, keep it for 2 hours, and finally discharge the wood modification working fluid (the first cycle). From the second cycle, it is not necessary to keep it for 30 minutes after vacuuming, and the others are the same as the first cycle.

[0052] (2) Open the impregnation tank, take out the poplar slabs that have been processed in step (1), stack them and put them in a drying kiln. Under the state of saturated steam, slowly raise the temperature to 160°C, keep it for 8 hours, cool down to 45°C, and discharge the saturated steam , and then slowly raise the temperature to 100°C, and bake until the moisture content is ≤10%.

[0053] The formula of wood modification working fluid is (percentage by weight): ...

Embodiment 2

[0063] (1) Put the pine slab (moisture content 80%, thickness 20mm) into the impregnation tank, and perform the following 5 impregnation cycles: vacuumize to vacuum degree -0.08Mpa, keep for 20 minutes, then inject wood modification working solution, add Press down to 1Mpa, keep it for 1 hour, and finally discharge the wood modification working fluid (the first cycle). From the second cycle, it is not necessary to keep it for 20 minutes after vacuuming, and the others are the same as the first cycle.

[0064] (2) Open the impregnation tank, take out the poplar slabs that have been treated in step (1), stack them and put them in a drying kiln. Under the state of saturated steam, slowly raise the temperature to 100°C, keep it for 24 hours, cool down to 35°C, and discharge the saturated steam, then slowly raise the temperature to 80°C, and dry until the moisture content is less than or equal to 10%.

[0065] The formula of wood modification working fluid is (percentage by weight...

Embodiment 3

[0075] (1) Put the oak slab (moisture content 50%, thickness 20mm) into the impregnation tank, and perform the following 4 impregnation cycles: vacuumize to vacuum degree -0.08Mpa, keep for 30 minutes, then inject wood modification working solution, add Press down to 0.5Mpa, keep it for 1.5 hours, and finally discharge the wood modification working fluid (the first cycle). From the second cycle, it is not necessary to keep it for 30 minutes after vacuuming, and the others are the same as the first cycle.

[0076] (2) Open the impregnation tank, take out the poplar slabs that have been treated in step (1), stack them and put them in a drying kiln. Under the state of saturated steam, slowly raise the temperature to 120°C, keep it for 15 hours, cool down to 40°C, and discharge the saturated steam , and then slowly increase the temperature to 90°C (conventional drying), and dry until the moisture content is ≤10%.

[0077] The formula of wood modification working fluid is (percent...

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PUM

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Abstract

The invention discloses a wood modification working liquid used for wet plate processing and a use method thereof. The wood modification working liquid used for wet plate processing is prepared from, by weight, inorganic base resin, namely an alkaline silica solution with 2-30% of silicon dioxide by weight, organic base resin, namely water soluble urine aldehyde resin impregnation liquid with 2-30% by solid content, waterproof agents with 0.2-20% by solid content, 0.05-3% of silane coupling agents, 0.2-1% of emulsifying agents, 1-10% of fire-retardant preservative and the balance water through mixing. The wood modified working liquid adopts matching of the inorganic component and the organic component, so that wood has the functions of preventing corrosion and insects, retarding inflaming, being waterproof and the like. All the components are not polymerized by themselves and can meet production requirements; the combination capacity of the components with the wood is high; the leach resistance is high; the obtained modified wood is good in stability, high in waterproof performance and good in corrosion prevention and fire resistance.

Description

technical field [0001] The invention relates to the technical field of wood processing, in particular to a wood modification working fluid for wet board processing and a method for using the same. Background technique [0002] my country is a big consumer of wood in the world, and it is also one of the countries with the least per capita forest (timber) resources in the world. With the rapid development of the economy and the improvement of people's living standards, the consumption of wood in our country has further increased, and the contradiction between supply and demand has further intensified. In 2006, my country's total wood consumption was 337 million m 3 , domestic annual supply of 140 to 150 million m 3 , the gap in timber market supply reaches 160 million m 3 above. Calculated according to the average annual growth rate of my country's wood consumption of 3.71% in the past 10 years, it is estimated that China's wood consumption will reach 600 million m by 2020...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/52B27K3/08B27K5/04
CPCB27K3/025B27K3/08B27K3/52B27K5/0085B27K5/04
Inventor 黄培伟葛沙琪葛澜黄安瀛
Owner YANGPUJIU JUTAI WOOD TECH CO LTD
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