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Drying defect reduction and flame-retardant treatment method for eucalyptus

A technology of flame retardant treatment and flame retardant treatment liquid, which is applied in wood treatment, wood treatment details, impregnated wood, etc. It can solve the problems of not being able to provide flame retardant performance, improve dimensional stability, reduce drying degradation rate, and deformation and crack reduction effect

Active Publication Date: 2013-07-17
李海滨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the modification process of the above-mentioned invention has a good effect in reducing the drying defects of the eucalyptus board, it cannot provide good flame retardancy, so there are deficiencies.

Method used

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  • Drying defect reduction and flame-retardant treatment method for eucalyptus
  • Drying defect reduction and flame-retardant treatment method for eucalyptus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Preparation of boiled treatment liquid: Quantitative water respectively enters LAS0.3wt%, penetrant OE-350.5wt%, STPP0.3wt%, SS0.6wt%, TCMTB0.05wt% (first LAS, OE-35 and TCMTB are mixed uniformly , dissolved in an appropriate amount of hot water), and stirred evenly. After the solution is prepared and during use, if there are many foams, add an appropriate amount of silicone defoamer to defoam.

Embodiment 2

[0043] Preparation of boiled treatment liquid: Quantitative water enters respectively LAS0.2wt%, AES0.4wt%, penetrant OE-350.2wt%, STPP0.5wt%, SS1.0wt%, TCMTB0.05wt% (first LAS, AES, Mix OE-35 and TCMTB evenly, dissolve with appropriate amount of hot water), and stir evenly. During the use of the solution, there are sometimes more foams, so add an appropriate amount of silicone defoamer to defoam.

Embodiment 3

[0045] Preparation of flame retardant treatment solution: quantitative water was added to Si HGel8wt%, P-N Cpd.8wt% and B Cpd.3wt%, and stirred evenly.

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Abstract

The invention discloses a drying defect reduction and flame-retardant treatment method for eucalyptus. The drying defect reduction and flame-retardant treatment method includes sequentially performing a poaching process, an ageing process, a steaming-vacuum treatment process, a flame-retardant treating fluid injection process and a drying process after an eucalyptus plate is sawn. The drying defect reduction and flame-retardant treatment method has the advantages that shrinking, deformation, cracking and the like, which are caused by drying, of an eucalyptus material treated by the processes of the method can be effectively reduced, and the drying degradation rate ranges from 7% to 18% and is effectively reduced; and flame-retardant treating fluid is filled into the eucalyptus material , so that the eucalyptus material is excellent in fire resistance, and the dimensional stability of the eucalyptus material is improved.

Description

technical field [0001] The invention belongs to the technical field of wood processing, and relates to a method for reducing drying defects of eucalyptus and a flame-retardant treatment method. Background technique [0002] Eucalyptus wood is more difficult to dry. Drying with conventional drying methods, eucalyptus wood tends to have drying defects such as serious shrinkage, deformation and cracking, and in severe cases, the wood will produce honeycomb internal cracks, and even the wood will be scrapped. In our Chinese invention patent "Method for Modification of Eucalyptus Wood" with the application number of 201110224741.1, we disclose a modification method that reduces drying defects: the eucalyptus wood board is steamed in sequence, soaked in clear water, alternately bathed in hot bath-cold bath, Treatment processes such as hot bath fading and drying; the wood modification liquid used is composed of STPP (sodium tripolyphosphate) 3-5‰, PEG (polyethylene glycol) 15-50‰,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/08B27K3/32B27K3/52B27K5/04
Inventor 王文涛吴子良莫丽华黄强
Owner 李海滨
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