Wood preservative and preparation method thereof

A wood preservative, nano-copper oxide technology, applied in the direction of wood impregnation, impregnated wood, wood processing utensils, etc., can solve the problems of large environmental hazards, poor permeability, low loss resistance, etc., and achieve low environmental pollution and loss resistance Strong, good fixation effect

Active Publication Date: 2011-12-14
NORTHEAST FORESTRY UNIVERSITY
View PDF4 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention aims to solve the technical problems of large environmental hazards, poor permeability and low...

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Wood preservative and preparation method thereof
  • Wood preservative and preparation method thereof
  • Wood preservative and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0013] Specific embodiment one: wood preservative is made of nano-copper oxide, triammonium citrate, distilled water, chitosan and acetic acid solution among the present invention, and wherein, the mass ratio of nano-copper oxide and triammonium citrate is 1: 0.1~0.5, the mass ratio of chitosan and nano-copper oxide is 0.5-1.5:1, the mass ratio of chitosan and acetic acid is 1:0.5-1, the mass of distilled water is equal to the total of nano-copper oxide and triammonium citrate The mass ratio is 19-99:1.

[0014] The wood preservative of the present embodiment is a dark brown viscous liquid, and the wood preservative is effective against wood decay fungus brown rot fungus—Gloeophyllum trabeum and white rot fungus—Coriolus versicolor It has obvious antibacterial effect. The copper fixation rate in the preservative described in this embodiment is very good, and has the advantages of good permeability and strong loss resistance. Using distilled water as a solvent has little envi...

specific Embodiment approach 2

[0015] Specific embodiment two: what this embodiment is different from specific embodiment one is: the particle diameter of described chitosan is 30~100 orders, and molecular weight is 3~800,000, and deacetylation degree is 85%~100% (deacetylation degree It is the ratio of the actual amino content to the theoretical amino content, and the amino content refers to the mass content). Others are the same as in the first embodiment.

specific Embodiment approach 3

[0016] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the mass ratio of chitosan to nano-copper oxide is 0.7-1.3:1. Others are the same as in the first or second embodiment.

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
Login to view more

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses a wood preservative and a preparation method thereof and belongs to the field of preservatives. The invention aims to solve the technical problem that a wood preservative has severe environmental harm, low permeability and low erosion resistance in the prior art. The wood preservative is prepared from nano copper oxide, ammonium citrate, distilled water, chitosan and a solution of acetic acid. The preparation method comprises the following steps of: 1, mixing the nano copper oxide and the ammonium citrate, adding the distilled water, and stirring to obtain nano copper oxid dispersion; and 2, adding the chitosan into the solution of acetic acid, adding the nano copper oxid dispersion, and stirring to obtain the wood preservative. The wood preservative is black brown viscous liquid and has an obvious bacteriostatic effect on wood decomposing fungi, such as monilinia fructicola, namely Gloeophyllum trabeum, and white rot fungi, namely Coriolus versicolor.

Description

technical field [0001] The invention belongs to the field of preservatives; in particular, it relates to wood preservatives and a preparation method thereof. Background technique [0002] With the development of my country's economy and the improvement of people's living standards, the society's demand for wood is increasing day by day. Wood is a natural and renewable biological material, and its development and utilization meet the requirements of environmental protection, but one of its main disadvantages is that it is easily attacked by microorganisms, which affects its use. Wood material anticorrosion refers to the normal pressure or pressure impregnation treatment of logs, boards or wood products with anti-corrosion, insect-proof, mildew-proof, and anti-discoloration chemicals. Researches at home and abroad have shown that the service life of anti-corrosion materials is 5-6 times that of unpreserved wood. Wood anti-corrosion can not only save forest resources, but also...

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
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B27K3/52
Inventor 许民赵喜华王立娟许士玉王佳贺
Owner NORTHEAST FORESTRY UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap