Unlock instant, AI-driven research and patent intelligence for your innovation.

Novel CuS preservative having strong leaching resistance as well as preparation method and application of preservative

An anti-loss and preservative technology, applied in manufacturing tools, reed/straw treatment, wood treatment, etc., can solve problems such as pollution, high solubility of copper ions, loss of heavy metal ions, etc., to achieve enhanced antibacterial performance, high protection efficiency, and extended The effect of service life

Active Publication Date: 2020-03-06
ZHEJIANG FORESTRY UNIVERSITY
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these water-soluble copper-based wood preservatives have extremely high solubility in water, causing the loss of copper ions and the pollution of heavy metal ions during outdoor use, causing too much concern.

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
  • Novel CuS preservative having strong leaching resistance as well as preparation method and application of preservative
  • Novel CuS preservative having strong leaching resistance as well as preparation method and application of preservative
  • Novel CuS preservative having strong leaching resistance as well as preparation method and application of preservative

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0036] Weigh 3.03g of raw material II copper chloride and dissolve it in 150ml of water to prepare solution A. Weigh 1.75g ​​of raw material I sodium sulfide, 2g of surfactant Tween 80, and two drops of antifoaming agent, dissolve them in 150ml of water, and stir quickly to make solution B. Add all of the solution A dropwise to the solution B that is being stirred rapidly to prepare a stable wood preservative copper sulfide.

[0037] In the specific implementation, the morphology and particle size of CuS in the examples were observed with a transmission electron microscope (TEM), specifically as figure 1 shown. From this experimental verification, it can be seen that the prepared copper sulfide anticorrosion agent is a nano-scale anticorrosion agent.

example 2

[0039] Weigh 3.59g of raw material II copper sulfate and dissolve it in 150mL of water to prepare Solution A. Weigh 1.75g ​​of raw material I sodium sulfide, 2g of surfactant Span 80 and dissolve it in 150ml of water, add two drops of defoamer to make solution B. Add all of Solution A dropwise to Solution B with rapid constant stirring. Prepared as a copper sulfide wood preservative.

[0040] In specific implementation, the wood preservative copper sulfide prepared in this embodiment is treated with vacuum pressure impregnation method to treat pine wood, and a part of the copper sulfide preservative is taken after the test piece is impregnated for loss treatment. The specific loss treatment method is as follows: The final test piece was placed in a Soxhlet extractor, extracted in 70°C water for 72 hours, and the water was changed every 24 hours. Then, according to the national standard "Wood Durability Part One: Natural Corrosion Resistance Test Method-GB / T 13942.1-2009", te...

example 3

[0047] Weigh 4.26g of raw material II copper nitrate and dissolve it in 150mL of water to prepare solution A. Weigh 2.47g of raw material I potassium sulfide, 2g of surfactant stearic acid and dissolve it in 150ml of water, add two drops of defoamer to make solution B. Add all of Solution A dropwise to Solution B with rapid constant stirring. Prepared as a copper sulfide wood preservative.

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

No PUM Login to View More

Abstract

The invention discloses a novel copper sulfide (CuS) preservative having strong leaching resistance as well as a preparation method and application of the preservative. The preservative is prepared from the following raw materials in parts by weight: 0.5-1.5 parts of a raw material I, 1.0-3.0 parts of a raw material II, 0.5-1.5 parts of a surfactant, 0.01-0.05 part of a defoaming agent, and 100.0-300.0 parts of water. The preparation method comprises the following steps: dissolving the raw material I into water, and performing stirring until the raw material I is completely dissolved to prepare a solution A; adding the raw material II and the surfactant into water, performing stirring until the raw material II and the surfactant are dissolved, and adding the defoaming agent to remove foamgenerated by stirring to prepare a solution B; and slowly adding the solution A into the continuously stirred solution B to prepare the CuS preservative having leaching resistance. The novel preservative provided by the invention has good corrosion resistance on fiber materials such as wood, bamboo and crop straws, high stability and strong leaching resistance, does not need heating during production, and saves costs.

Description

technical field [0001] The invention belongs to the field of wood protection, and in particular relates to a novel CuS preservative for plant fiber raw materials such as wood, bamboo and crop stalks, a preparation method thereof and its use in antisepsis of plant fiber raw materials such as wood, bamboo and crop stalks. Background technique [0002] Plant fiber materials such as wood, bamboo, and crop stalks have obvious biological characteristics, and are susceptible to rot and mildew due to the harm of organisms and microorganisms, which reduces the life of such materials and increases their consumption. Effective protective treatment can increase the antibacterial properties of plant fiber materials and prolong their service life, which is of great significance to saving plant resources and improving utilization. Because copper has obvious advantages as an active ingredient of preservatives, such as low price and broad-spectrum bactericidal properties, preservatives with ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/52B27K3/20B27K3/22B27K3/00B27K9/00
CPCB27K3/52B27K3/20B27K3/22B27K3/005B27K9/002B27K2240/20
Inventor 王慧孙芳利王婕叶泽霖郭梦麟
Owner ZHEJIANG FORESTRY UNIVERSITY