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Modified fast growing wood impregnating agent and impregnation high-temperature integrated treatment method

A treatment method and technology of impregnating agent, applied in the direction of wood impregnation, pressure impregnation, impregnation of wood, etc., can solve the problems such as the inability to realize the efficient and seamless combination of impregnation treatment and high-temperature heat treatment, the complex process flow, the large energy consumption, etc. Value and technical content, simple preparation process, and the effect of saving consumption

Inactive Publication Date: 2016-05-11
GUANGDONG YIHUA TIMBER IND
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the prior art, the modified impregnating agent is a conventional urea-formaldehyde resin impregnating agent. The technological process between impregnating treatment and high-temperature heat treatment is complicated, takes a long time, consumes a lot of energy, and cannot realize the efficient and seamless combination of impregnating treatment and high-temperature heat treatment.

Method used

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  • Modified fast growing wood impregnating agent and impregnation high-temperature integrated treatment method
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  • Modified fast growing wood impregnating agent and impregnation high-temperature integrated treatment method

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Embodiment Construction

[0017] Control attached figure 2 , fast-growing wood modified impregnating agent and impregnated high-temperature integrated treatment method, comprising the following steps:

[0018] (1) Preparation of modified urea-formaldehyde resin impregnating agent:

[0019] ① Dilution of urea-formaldehyde resin solution:

[0020] The urea-formaldehyde resin solution is produced according to the conventional process, the solid content is 40%-50%, the pH value is 7.0-9.5, the viscosity is ≥20mPa·s, and the free formaldehyde content is ≤0.5%.

[0021] Because the solid content of the factory-made urea-formaldehyde resin solution is too high, the high viscosity is not conducive to the penetration of the solution into the wood during impregnation. Therefore, the urea-formaldehyde resin solution needs to be diluted with distilled water or clear water. The solid content is controlled at 20%-25%.

[0022] ② Nano-SiO2 drying and weighing:

[0023] Prepare hydrophilic nano-silica, molecular ...

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Abstract

The invention relates to a modified fast growing wood impregnating agent and impregnation high-temperature integrated treatment method. The method comprises the following steps: (1) preparing a modified urea-formaldehyde resin impregnating agent; (2) preparing the fast growing wood and treating at a preparation stage; (3) absolutely drying at a high temperature; (4) performing the impregnation and high-temperature integrated treatment; (5) aging, maintaining, inspecting and warehousing. The modified fast growing wood impregnating agent and impregnation high-temperature integrated treatment method has the advantages that: (1) a modified impregnating agent is made into a suspension by adding a nano material on the basis of the conventional urea-formaldehyde resin impregnating agent and ultrasonically stirring, the modification effect of the modified impregnating agent on the aspects such as hardness, abrasion resistance, size stability and the like is better than that of the conventional urea-formaldehyde resin impregnating agent, and the preparation process is simple, moderate in conditions and convenient to operate; (2) the physical and mechanical properties of the fast growing wood such as poplar and cedar can be well improved; the wide application of the fast growing wood can be realized, the consumption of top-grade wood can be reduced, the wood application range can be enlarged, the additional value and technical content of the fast growing wood can be increased, and the optimal application of poor wood can be realized.

Description

technical field [0001] The invention relates to a modified impregnating agent for fast-growing wood and an integrated high-temperature impregnation treatment method, and belongs to the technical field of wood impregnation treatment and high-temperature heat treatment. Background technique [0002] In the prior art, the modified impregnating agent is a conventional urea-formaldehyde resin impregnating agent. The technological process between impregnating treatment and high-temperature heat treatment is complicated, takes a long time, consumes a lot of energy, and cannot realize the efficient and seamless combination of impregnating treatment and high-temperature heat treatment. Contents of the invention [0003] The invention proposes a modified impregnating agent for fast-growing wood and an integrated high-temperature impregnating treatment method. The purpose of the invention is to overcome the defects in the prior art, improve the physical and mechanical properties of fa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/08B27K3/02B27K3/36
CPCB27K3/0214B27K3/08B27K3/36
Inventor 徐伟毛卫国杜安磊黄彦慧吴智慧杜旭成孙宏南
Owner GUANGDONG YIHUA TIMBER IND
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