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Functionally-modifying method of rubber wood

A rubber wood, modified technology, applied in wood treatment, impregnated wood, wood impregnation, etc., can solve the problems that are not well utilized, rubber wood is easy to deform, wet board is easy to rot, etc., to prevent cracking deformation, waterproof Strong performance and good flame retardancy

Inactive Publication Date: 2015-05-27
YANGPUJIU JUTAI WOOD TECH CO LTD
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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

[0036] A method for functional modification of rubber wood, comprising the steps of:

[0037] (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:

[0038]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 impregnation solution, pressurize it to 0.2Mpa, keep it for 8 hours, and finally discharge the impregnation solution;

[0039] 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%.

[0040] The seco...

Embodiment 2

[0045] A method for functional modification of rubber wood, comprising the steps of:

[0046] (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:

[0047] 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 impregnation solution, pressurize it to 0.5Mpa, keep it for 6 hours, and finally discharge the impregnation solution;

[0048] 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%.

[0049] The 2nd-4th impregnation and drying cycle:...

Embodiment 3

[0055] A method for functional modification of rubber wood, comprising the steps of:

[0056] (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:

[0057] 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 impregnation solution, pressurize it to 0.3Mpa, keep it for 7 hours, and finally discharge the impregnation solution;

[0058] 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%.

[0059] The 2nd...

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Abstract

The invention discloses a functionally-modifying method of rubber wood. A multiple impregnation method is employed in the invention. In the method, cell walls are wrapped by an inorganic / organic glue layer formed by an impregnation solution so that an insulating layer is formed on the surface of wood fibers, thereby enabling wood to have functions of corrosion resistance, pest resistance, flame retardant and water proof and the like. The impregnation solution is not subjected to auto polymerization at a normal temperature, can adapt a production requirement and is strong in combination force with rubber wood and washing-loss-resistant performance. Modified wood is excellent in stability, is strong in waterproof performance, and is good in corrosion-resistant and flame-retardant performance. The method can increase economic value of the rubber wood.

Description

technical field [0001] The invention relates to the technical field of wood processing, in particular to a method 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 the service life...

Claims

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Application Information

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IPC IPC(8): B27K3/08B27K3/50
CPCB27K3/08B27K3/52B27K5/04
Inventor 黄培伟
Owner YANGPUJIU JUTAI WOOD TECH CO LTD
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