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A dipping solution used for functional modification of rubberwood timber

An impregnating liquid, rubber wood technology, applied in the direction of wood impregnation, wood impregnation, wood treatment, etc., can solve the problems of underutilization, easy deformation of rubber wood, easy decay of wet boards, etc., to achieve strong waterproof performance, resistance to resistance. Good flammability, combined with stable effect

Active Publication Date: 2015-05-27
西双版纳新宏兴木业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Rubber wood is a rubber tree that has gradually aged after many years of rubber tapping, and the rubber production has been very small. It has been eliminated and felled to regenerate wood. However, due to the characteristics of rubber wood, which is easy to deform, wet boards are easy to rot, and discoloration, it has not been well utilized. , in recent years, due to the decrease of natural forest wood year by year, rubber wood resources have been paid attention to, but limited to technical conditions, they can only be used as low-end materials after simple anti-corrosion treatment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for functional modification of rubber wood, comprising the steps of:

[0026] (1), the rubber wood slab (measured rubber wood specific gravity: 0.65 / cm 3 , with a moisture content of 20%, a thickness of 20mm, and mainly the head section) carry out 2 following impregnation and drying cycles:

[0027] The first impregnation and drying cycle: Put the rubber wood slab into the impregnation tank, vacuumize to -0.06Mpa, keep it for 30 minutes, then inject the basic impregnation solution, pressurize it to 0.2Mpa, keep it for 8 hours, and finally discharge the impregnation solution ;

[0028] Open the impregnation tank, take out the rubber wood slabs, stack the plates and put them in the 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, discharge the saturated steam, and then slowly raise the temperature to 100°C (drying kiln Conventional drying), drying to moisture content ≤ 20%.

[0029]...

Embodiment 2

[0035] A method for functional modification of rubber wood, comprising the steps of:

[0036] (1), the rubber wood slab (measured rubber wood specific gravity: 0.55cm 3 , with a moisture content of 80%, a thickness of 20mm, and mainly the final section) carry out 4 following impregnation and drying cycles:

[0037] The first impregnation and drying cycle: Put the rubber wood slab into the impregnation tank, vacuumize to -0.08Mpa, keep it for 20 minutes, then inject the basic impregnation solution, pressurize it to 0.5Mpa, keep it for 6 hours, and finally discharge the impregnation solution ;

[0038] Open the impregnation tank, take out the rubber wood slabs, stack the plates and put them in the drying kiln. Under the state of saturated steam, slowly heat up to 100°C, keep for 24 hours, cool down to 35°C, discharge saturated steam, and then slowly heat up to 80°C (drying kiln Conventional drying), drying to moisture content ≤ 20%.

[0039] The 2nd-4th impregnation and dryin...

Embodiment 3

[0046] A method for functional modification of rubber wood, comprising the steps of:

[0047] (1), the rubber wood slab (measured rubber wood specific gravity: 0.60 / cm 3 , with a moisture content of 50%, a thickness of 20mm, and mainly the head section) carry out 3 following impregnation and drying cycles:

[0048] The first impregnation and drying cycle: Put the rubber wood slab into the impregnation tank, vacuumize to -0.07Mpa, keep it for 25 minutes, then inject the basic impregnation solution, pressurize it to 0.3Mpa, keep it for 7 hours, and finally discharge the impregnation solution ;

[0049] Open the impregnation tank, take out the rubber wood slabs, stack the plates and put them in the 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, discharge the saturated steam, and then slowly raise the temperature to 90°C (drying kiln Conventional drying), drying to moisture content ≤ 20%.

[0050]...

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PUM

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Abstract

A dipping solution used for functional modification of rubberwood timber is disclosed. The dipping solution is prepared by mixing following components by weight: 2-30% of alkaline silica sol calculated based on silicon dioxide, 2-30% of water-soluble urea-formaldehyde resin, 0.2-20% of a waterproof agent, 0.05-3% of a silane coupling agent and 1-5% of borax, with the balance being water. The dipping solution adopts combination of inorganic components and organic components. Wood cell walls are covered with an inorganic-organic glue layer formed by the dipping solution so as to form a separating layer on the surface of wood fiber, so that the timer has functions of corrosion resistance, insect prevention, flame retardance, waterproofness, and the like. Components of the dipping solution are free of self-polymerization at room temperature, thus meeting production requirements. The dipping solution is high in binding capability with rubberwood and high in loss resistance. Obtained modified timer is good in stability, high in waterproofness, good in corrosion resistance and good in flame retardance. Economic value of the rubberwood is increased.

Description

technical field [0001] The invention relates to the technical field of wood processing, in particular to an impregnation solution for functional modification of rubber wood. Background technique [0002] In recent years, with the advancement of science and technology and the development of human civilization, people have begun to pay more and more attention to environmental issues. Especially in the 21st century, reducing carbon emissions has become a major issue related to human survival and development. The Forestry Division of the Food and Agriculture Organization of the United Nations (FAO) and some national government departments and organizations have carried out extensive research on climate change and countermeasures, and believe that increasing the use of wood is one of the simple and easy methods to slow down climate change and improve the carbon balance of the earth's atmosphere one. Specific measures include: increasing the utilization ratio of wood, prolonging ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/52
CPCB27K3/52B27K2240/20B27K2240/30B27K2240/70
Inventor 黄培伟
Owner 西双版纳新宏兴木业有限责任公司
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