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Wood preservative and preparation thereof

A technology of wood preservatives and modifiers, applied in the direction of wood impregnation, impregnated wood, wood processing equipment, etc., can solve the problems of environmental pollution, non-degradable, etc., and achieve the effects of environmental friendliness, low cost, and wide sources

Inactive Publication Date: 2008-12-03
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention is to solve the problem that existing wood preservatives cannot be degraded and pollute the environment after use, and provide a wood preservative and its preparation method

Method used

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  • Wood preservative and preparation thereof
  • Wood preservative and preparation thereof
  • Wood preservative and preparation thereof

Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0009] Embodiment 1: The wood preservative of this embodiment is made by reacting 0.1-1mol of modified rosin and 1mol of polyene polyamine according to the molar ratio; wherein the modified rosin is made of 0.5-2mol of Made of rosin and 1mol of rosin modifier; the rosin modifier is a combination of one or more of acrylic acid, fumaric acid, maleic anhydride; the polyene polyamine is diethylenetriamine, diethylene One or a combination of tetramine, diethylenepentamine, triethylenetriamine, and triethylenetetramine.

[0010] In this embodiment, when the rosin modifier is composed of two or three substances, they are mixed in any proportion.

[0011] In this embodiment, when the polyene polyamine is composed of two or more substances, they are mixed in any proportion.

specific Embodiment approach 2

[0012] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the wood preservative is made by reacting 0.3 to 0.8 mol of modified rosin and 1 mol of polyene polyamine according to the molar ratio; The permanent rosin is made of 1-1.5mol rosin and 1mol rosin modifier according to the molar ratio. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0013] Specific embodiment three: the difference between this embodiment and specific embodiment one is: the wood preservative is made by the reaction of 0.55mol modified rosin and 1mol polyene polyamine according to the molar ratio; wherein the modified rosin According to the molar ratio, it is made of 1.25mol rosin and 1mol rosin modifier. Others are the same as in the first embodiment.

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Abstract

The invention discloses a wood preservative and a preparation method thereof. The invention relates to a preservative and a preparation method thereof. The invention solves the problems that the prior wood preservative is undegradable and pollutes environment after the wood preservative is used. The wood preservative is prepared by 0.1 to 1mol modified rosin and 1mol polyene polyamine according to a molar ratio through reaction, and the preparation method comprises the following: step one, the rosin is modified; and step two, the modified rosin and the polyene polyamine react to produce the wood preservative. The wood preservative has good inhibiting effect to stain fungus, aspergillus niger, wood-decaying fungus, white rot fungus, brown rot fungus and paecilomyces varioti bainier and can be degradable and has no harm to the environment.

Description

technical field [0001] The invention relates to a preservative and a preparation method thereof. Background technique [0002] Wood preservatives can prolong the service life of wood by 5-6 times or even more than 10 times. The wood preservative industry is an important way to save forest resources. However, the existing wood preservatives, such as creosote, copper-based water-borne preservatives, etc., cannot be degraded after use, which will cause serious pollution to the environment. Contents of the invention [0003] The invention provides a wood preservative and a preparation method thereof in order to solve the problems that existing wood preservatives cannot be degraded and pollute the environment after use. [0004] The wood preservative of the present invention is made by reacting 0.1~1mol of modified rosin and 1mol of polyene polyamine according to molar ratio; wherein said modified rosin is made of 0.5~2mol of rosin (molecular formula is C 19 h 29 COOH) and 1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/52
Inventor 李淑君李双月韩世岩许士玉杨冬梅黄占华苏文强
Owner NORTHEAST FORESTRY UNIVERSITY
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