Preparation method of chitin metal salt wood preservative and its application

A wood preservative, chitosan technology, applied in the direction of coating impregnation, coating, etc., can solve the problems of great harm to human health and the environment, arsenic harmful to human health and the environment, pollution of soil and groundwater environment, etc., to achieve anti-corrosion Low toxicity, high anti-corrosion effect, good anti-loss performance
CN1459466AInactive Publication Date: 2003-12-03INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
Publication Date
2003-12-03
Estimated Expiration
Not applicable · inactive patent
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Abstract

A chitosan-metal salt chelate as the wood preservative is prepared through dispersing chitosan or its derivative in water, dispersing at least one salt of Cu, Zn, or rare-earth metal in it, heating to 36-60 deg.C for 1.5-5 hr to obtain water-insoluble chelate, and adding at least one dilute acid to become water soluble while regulate its pH value to 2-6.
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Description

technical field

[0001] The invention relates to a preparation method of a preservative for wood protection and wood preservation, in particular to a preparation method of a chitosan metal salt wood preservative.

[0002] The present invention also relates to the application of the above-mentioned preservative in wood preservation. Background technique

[0003] Wood is a natural biological material and a renewable resource. It is an important raw material for human survival and development, and is closely related to human life. However, it has obvious biological characteristics, so it is extremely vulnerable to biological and microbial hazards such as wood-rot fungi, insects, and marine borers, which will cause discoloration, decay, and insects of the wood, which seriously affects the service life of the wood and increases It reduces the consumption of wood, wastes dwindling forest resources, and also limits the application fields of wood and bamboo. According to statistics...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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