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Wood preservation method and preserved wood

A wood preservative and wood technology, applied in the direction of wood treatment, wood impregnation, wood impregnation, etc., can solve the problems of human body damage, environmental hazards, and high toxicity to humans and animals, and achieve the effect of improving organizational structure and long duration.

Inactive Publication Date: 2009-07-29
上海勤功线路器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the wood is painted, its outdoor anti-corrosion and insect-proof effects can only last for about 5 years
Pentachlorophenol is mainly used for anti-corrosion of utility poles and piles, and the anti-corrosion and insect-proof effect is relatively long-lasting. However, pentachlorophenol is a highly toxic substance, which is highly toxic to humans and animals and is also harmful to the environment. Therefore, it has been banned in many countries. use, which was banned in the United States in the early 1990s
At present, there is no report that it is harmful to the human body, and its harm to the environment is far less than that of pentachlorophenol

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Dry the wood specification profiles at 60°C for 45 days at low temperature with a moisture content of 10%.

[0030] Processing of lumber gauge profiles into lumber products for fittings and pole brackets for power and communication lines.

[0031] Copper naphthenate is mixed with 100# solvent oil at a ratio of 1:1.5 to obtain copper naphthenate anticorrosion and insect repellent, and the anticorrosion and insect repellent contains copper ≥ 5 wt%.

[0032] Dip the shaped wood product into the above antiseptic and insect repellant, pressurize for 8 hours, and keep the pressure at 6-7kg / cm 3 .

[0033] Then dry, the wood humidity is kept at 12.5%. The surface of the finished preservative wood is a layer of brown-green copper naphthenate anticorrosion insecticide, and the radial thickness of the copper naphthenate anticorrosion insecticide impregnated on the surface of the anticorrosion wood accounts for 49% of the diameter of the wood.

[0034] The copper content in the...

Embodiment 2

[0036] Except following steps, other is with embodiment 1.

[0037] Wood specification profiles were dried at a low temperature of 55°C for 40 days with a moisture content of 11.5%.

[0038] Copper naphthenate and 100# solvent oil are mixed at a ratio of 1:2 to obtain copper naphthenate anticorrosion and insect repellent, and the anticorrosion and insect repellent contains copper ≥ 5 wt%.

[0039] Dip the shaped wood product into the above antiseptic and insect repellant, pressurize for 10 hours, and keep the pressure at 7-8kg / cm 3 .

[0040] Then dry, the wood humidity is kept at 14%. The radial thickness of the copper naphthenate anticorrosion and insect repellant impregnated on the surface of the finished preservative wood accounts for 40.5% of the diameter of the wood.

[0041] The content of copper in the wood after drying was measured, and the result was 0.45pcf of copper.

Embodiment 3

[0043] Except following steps, other is with embodiment 1.

[0044] Wood specification profiles were dried at 50°C for 35 days at low temperature with a moisture content of 13%.

[0045] Copper naphthenate is mixed with 100# solvent oil at a ratio of 1:3 to obtain copper naphthenate anticorrosion and insect repellent, and the anticorrosion and insect repellent contains copper ≥ 5 wt%.

[0046] Dip the shaped wood product into the above antiseptic and insect repellant, pressurize for 12 hours, and keep the pressure at 8-9kg / cm 3 .

[0047] Then dry, the wood humidity is kept at 15.5%. The radial thickness of the copper naphthenate preservative and insect repellant impregnated on the surface of the finished preservative wood accounts for 31% of the diameter of the wood.

[0048] The copper content in the wood after drying was measured, and the result was 0.42pcf of copper.

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Abstract

The invention provides a method for timber preservation and preserving timber. The method comprises the steps of: mixing copper naphthenate and solvent oil according to a ratio of 1:1.5-3.5 to prepare an antiseptic and insect-resisting agent; soaking timber dried at low temperature in the antiseptic and insect-resisting agent; pressurizing the timber under a pressure of 6 to 10kg / cm for 8 to 15 hours; and drying the timber to obtain the preserving timber. The radial thickness of the surface, impregnated with the copper naphthenate antiseptic and insect-resisting agent, of the preserving timber is 10 to 50 percent of the diameter of the timber, the inner layer of the timber is a brown copper naphthenate antiseptic and insect-resisting agent and oil solvent layer, the humidity of the timer is 12 to 17 percent, and the copper content of the timber is more than or equal to 0.04pcf.

Description

technical field [0001] The present invention relates to an antiseptic method, in particular to a wood antiseptic method and an antiseptic wood. Background technique [0002] Wood is a biological material. In addition to its renewable nature, its specific composition and structure also make it have many advantages such as beautiful texture and strong processability, and it has many uses. But it also has disadvantages such as the volume is affected by humidity, easy to rot, and discoloration. Wood preservation is one of the most widely used technologies in the field of wood protection. Its main function is to prevent wood from rotting and moth-eaten, and to prolong the service life of wood. Treating wood with anti-corrosion and insect-repellent agents can not only prevent corrosion, prevent insects, prolong its service life, and indirectly protect forest resources, but also broaden the scope of use of wood. [0003] The development of wood preservation technology has a long ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K5/04B27K3/50
Inventor 庞仲豪郑峰英陈东浩
Owner 上海勤功线路器材有限公司
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