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Preparation method for rosin-copper composite wood preservative and application thereof

A technology of wood preservative and rosin, which is applied in the direction of wood impregnation, impregnated wood, wood processing utensils, etc., can solve the problems of poor anti-loss and other problems, and achieve the effect of promoting development and protecting against erosion

Active Publication Date: 2011-05-25
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that copper salt has poor loss resistance as a wood preservative and has many adverse effects on human and animal health and the natural environment, and provides a preparation method and a use method of a rosin-copper composite wood preservative

Method used

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Examples

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specific Embodiment approach 1

[0010] Specific embodiment one: the preparation method of rosin-copper composite wood preservative in the present embodiment is as follows: one, the dispersed rosin sizing agent emulsion is diluted with water, and the mass concentration obtained is 0.02%~8% dispersed rosin sizing agent emulsion solution 2. Dissolving the copper salt in water to obtain an aqueous solution of copper salt with a mass concentration (in terms of copper oxide, the same below) of 0.02% to 5%; Under the condition of ~10, the dispersed rosin sizing agent emulsion solution and the copper salt solution are compounded, so that the mass concentration of the dispersed rosin sizing agent emulsion in the final treatment liquid is 0.01% to 4%, and the mass concentration of the water-based copper salt is 0.01% to 0.01%. 2.5%, namely rosin-copper composite wood preservative.

[0011] The rosin-copper composite wood preservative of the present embodiment has a weight loss rate of 0.08% to 0.3% against Coriolus ve...

specific Embodiment approach 2

[0012] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the dispersed rosin sizing agent emulsion in step 1 is preferably an anionic dispersed rosin sizing agent emulsion. 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 that the copper salt described in step two is preferably CuSO, 4 CuNO 3 or CuCl 2 . Others are the same as in the first embodiment.

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Abstract

The invention provides a preparation method for a rosin-copper composite wood preservative and an application thereof, which relates to the wood preservative and the application thereof. The invention aims to solve the problems that the loss resistance is poor and a number of adverse effects are generated on health of people and livestock and a people and livestock by taking copper salt as the wood preservative. The rosin-copper composite wood preservative comprises two parts: a disperse rosin sizing agent emulsion and water-soluble copper salt. The preparation method for the rosin-copper composite wood preservative comprises the following steps: (I) diluting the disperse rosin sizing agent emulsion by water to obtain a disperse rosin sizing agent emulsion solution; (II) dissolving the copper salt in the water to obtain a copper salt aqueous solution; and (III) compounding the disperse rosin sizing agent emulsion solution with the copper salt aqueous solution under the condition of keeping the temperature to be 5-50 DEG C and the pH value to be 4-10 to carry out full-cell process antiseptic treatment on wood. The decay weight loss rate of the rosin-copper composite wood preservative on Coriolus versicolor is 0.08-0.3 percent, and the decay weight loss ratio on wood sample Gloeophyllumtrabeum is 0.73-1.3 percent.

Description

technical field [0001] The invention relates to a preparation method and application of a wood preservative. Background technique [0002] Wood preservation is to increase the volume of wood without increasing the forest area. Research at home and abroad shows that wood preservative treatment can greatly prolong the service life of wood. Due to the small per capita forest area in my country and the weak foundation of wood preservatives, it is now in the development period, and it is of great significance to actively develop new wood preservatives. Water-based preservatives are the most widely used at present. Among them, copper salt, as a commonly used wood preservative, is low in cost and can effectively prevent the damage of microorganisms to wood, but its own poor loss resistance and has many adverse effects on human and animal health and the natural environment, so it is not widely used. [0003] Rosin is an important chemical raw material with rich sources, low price...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/52B27K3/02
Inventor 李淑君李坚梁涛金燕孙月正张明鑫王前
Owner NORTHEAST FORESTRY UNIVERSITY
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