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Wood size stabilizing treatment

A dimensionally stable, wood-based technology, applied in the direction of wood impregnation, impregnated wood, wood processing equipment, etc., can solve the problems of dimensional instability, wood perishable and insect-eaten, etc., and achieve improved mechanical properties, enhanced corrosion resistance, and dimensional stability enhanced effect

Inactive Publication Date: 2012-11-28
CHANGZHOU FUDA REDWOOD FURNITURE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Because wood contains a large number of hydroxyl radical chemical groups that are easy to absorb and release moisture, the wood will swell or shrink when dried, and the size of the wood stored for a long time is extremely unstable
Moreover, the presence of hydroxyl radicals also produces enzymes that can nourish microorganisms, making wood easy to rot and insects.

Method used

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Embodiment Construction

[0015] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0016] A dimensionally stable treatment of timber comprising the steps of:

[0017] 1) Remove the wood skin. Because the cellulose content of the wood skin is very low and the impurities are high, it will reduce the efficiency of acetylation and increase the consumption of acetylation agent. Therefore, before processing, it is generally required to remove the skin, that is, peeling.

[0018] 2) Then dry the peeled wood at low temperature so that the moisture content of the wood is lower than 10%;

[0019] 3) Use laser irradiation to scratch the surface of the dried wood to facilitate the infiltration of the treatment agent without damage to the wood;

[0020] 4) Send the scored wood into the re...

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PUM

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Abstract

The invention discloses a wood size stabilizing treatment, comprising the following steps: 1) stripping barks of the wood; 2) drying the barkstripped wood at low temperature to control the water content of the wood lower than 10%; 3) incising the dried wood surface; 4) feeding the incised wood into a reaction tank and pumping an acetylating agent into the reaction tank; 5) completely reacting the wood with the acetylating agent at 80-100 DEG C for 3-8 hours; 6) discharging the extra acetylating agent and drying the wood. By the above way, the mechanical properties of the wood such as pressure resistance, hardness and toughness are improved, the water absorption of the wood is reduced, and the size stability and the corrosion resistance are reinforced, thus the wood can defend ants and insects and be more durable.

Description

technical field [0001] The invention relates to the field of wood treatment, in particular to a dimensionally stable treatment of wood. Background technique [0002] Because the wood contains a large number of hydroxyl radical chemical groups that are easy to absorb and release moisture, the wood will swell or shrink when dried, and the size of the wood stored for a long time is extremely unstable. Moreover, the presence of hydroxyl radicals also produces enzymes that can nourish microorganisms, making wood easy to rot and insects. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a dimensional stabilization treatment of wood, which can improve the mechanical properties of wood such as compressive capacity, hardness and toughness, reduce the water absorption of wood, enhance dimensional stability, and enhance the corrosion resistance of wood , so that it has the effect of preventing termites and insects, and is m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/02B27K3/36
Inventor 颜仁明
Owner CHANGZHOU FUDA REDWOOD FURNITURE FACTORY