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The Treatment Method of Improving Wood Surface Adhesion to Paint Film

A treatment method and adhesion technology, which is applied in wood treatment, wood treatment details, electric wood treatment, etc., can solve the problems of high compression and bending resistance, heavy texture, surface finishing performance, adhesive performance and paint film adhesion Reduce problems such as improving paint film adhesion, increasing free energy, and increasing surface hydrophilicity

Active Publication Date: 2018-11-02
HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] my country's relatively low-quality artificial forests, especially larch wood, are rich in wood, heavy and solid in texture, strong in compression and bending, and good in corrosion resistance. They are used for poles, sleepers, bridges, mine pillars, vehicles, It is an excellent material for construction, etc., but its stability and color problems have always been the disadvantages of its application.
[0003] However, after the wood is improved by the current high-temperature heat treatment technology, its surface finishing performance, bonding performance, especially the adhesion of the wood surface to the paint film are all reduced, which directly affects the functional improvement and decorative properties of wood products.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] Firstly, the larch was processed into planed timbers of 300 mm (length)×100 mm (width)×10 mm (thickness) for use in Examples and Comparative Examples.

[0027] A piece of planed wood processed and shaped above is taken and subjected to programmed temperature rise heat treatment and plasma jet treatment successively. in,

[0028] Programmed temperature rise heat treatment process:

[0029] Take a piece of the above-mentioned processed planed wood and put it into the heat treatment chamber, and then carry out the heat treatment with programmed temperature increase according to the following steps.

[0030] The first heating step: gradually increase from room temperature to 120°C at a rate of 15°C / h, and keep warm for 3 hours;

[0031] The second heating step: feed nitrogen to keep the oxygen mass fraction in the heat treatment chamber lower than 5%, and at the same time continue to rise to 150°C at a speed of 10°C / h, and keep warm for 3h;

[0032] The third heating ste...

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PUM

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Abstract

The invention provides a new method combining temperature-programmed heat treatment and plasma jet treatment to conduct surface treatment on wood, and solves the problem of reduction, caused by a traditional heat treatment method, of adhesive force of a wood surface to a paint film. After adopting the method for carrying out surface treatment on the wood, the adhesive force of the wood surface to the paint film is greatly enhanced. Furthermore, the treatment method will not destroy the interior structure of the wood, is easy to operate and can be popularized and applied serving as a good wood treatment method.

Description

technical field [0001] The invention relates to a surface treatment method in the field of chemical materials, in particular to a treatment method for improving the adhesion of a wood surface, especially larch wood, to a paint film. Background technique [0002] my country's relatively low-quality artificial forests, especially larch wood, are rich in wood, heavy and solid in texture, strong in compression and bending, and good in corrosion resistance. They are used for poles, sleepers, bridges, mine pillars, vehicles, It is an excellent material for construction, etc., but its stability and color problems have always been the disadvantages of its application. Wood high-temperature heat treatment is a commonly used wood modification method. The process is simple and the treatment process has no pollution to the environment. It can improve the quality of wood, reduce the hygroscopicity and water absorption of wood, and improve dimensional stability, biological corrosion resist...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D3/06B05D7/06B27K5/00
CPCB27K5/001B27K5/002
Inventor 马利纳
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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