Nano wood antiseptics and manufacturing method thereof

A wood preservative and nanotechnology, applied in the direction of wood impregnation, impregnating wood, manufacturing tools, etc., can solve the problems of deep color of wood and bamboo, poor resistance to loss, affecting the processing and application fields of wood and bamboo.

Inactive Publication Date: 2008-10-15
ZHEJIANG FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, AAC has poor resistance to loss, and after ACQ treatment of wood and bamboo, the color of woo

Method used

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  • Nano wood antiseptics and manufacturing method thereof
  • Nano wood antiseptics and manufacturing method thereof
  • Nano wood antiseptics and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example 6

[0026] To prepare 10.0 kg of a compound preservative composed mainly of propiconazole, tebuconazole and beta-cypermethrin, 0.5 kg of the water-soluble polymer copovidone and the fungicide propiconazole and tebuconazole should be weighed accordingly 0.1kg each of the alcohol, 0.03kg of the insecticide beta-cypermethrin, stirred at 45℃, dissolved in 0.68kg of the organic solvent n-butanol; then added the surfactant laureth polyoxyethylene ether phosphate 0.45kg, dodecane Calcium benzenesulfonate 0.05kg, stir to dissolve; keep the temperature at 25°C, under stirring at 200 rpm, 8.09kg of water is added dropwise at a speed of 5L / min. After adding water, continue to stir for 0.5h to prepare 10kg of the preservative solution whose main ingredients are propiconazole, tebuconazole and beta-cypermethrin, which can be directly used for preservative treatment or further diluted for reuse.

Example Embodiment

[0027] Example 9

[0028] To prepare 9.81kg of compound preservative mainly composed of propiconazole, dithiocyanomethane and imidacloprid, 0.53kg of organic solvent n-octanol should be weighed accordingly, and 0.55kg of water-soluble polymer styrene- Acrylate polymer, dissolved in it at 45℃, and then add 0.16kg each of the fungicide propiconazole, dithiocyanomethane, and 0.05kg of the insecticide imidacloprid, stir to dissolve; then add surfactant three Styryl phenol polyoxyethylene ether phosphate 0.38kg, calcium dodecylbenzene sulfonate 0.05kg, stir to dissolve; keep the temperature at 28℃, under stirring at 300r / min, add 7.93kg dropwise at a speed of 1L / min After adding water, continue to stir for 0.5h to obtain 9.81kg of preservative solution whose main ingredients are propiconazole, dithiocyanomethane and imidacloprid, which can be directly used for preservative treatment or further diluted for reuse.

[0029] The components and weight parts of other examples listed in Table...

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Abstract

A nano-wood preservative and a preparation method thereof are provided. The preservative contains biocide of 0.2-5.0 parts by weight (the same below), water-soluble high polymer of 0.4-6.0 parts, surfactant of 0.1-6.0 parts, organic solvent of 5.0-10.0 parts, and water of 65-95 parts. The preparation method of the preservative includes: dissolving the water-soluble high polymer in the organic solvent, and adding the biocide; further adding the surfactant, holding the temperature at 40-50 DEG C and intensively stirring to obtain the concentrated solution; and adding the water at a proper speed in intensively stirring at a certain stirring speed. The preservative is applicable to the preservative treatment of the plant fiber materials like wood, bamboo, straw, raw hemp, etc., and has the advantages that the preservative contains no heavy metal elements, maintains the inherent qualities of the plant fiber and has high corrosion resistance and no environment pollution; and various methods of treatment like soaking, brushing, spraying and pressure impregnation can be adopted for processing.

Description

technical field [0001] The invention relates to a preservative for antiseptic treatment of wood, bamboo, crop stalks, hemp flakes and other materials containing plant fibers and a manufacturing method thereof, in particular to a nano-scale wood preservative and a manufacturing method thereof. Background technique [0002] The most commonly used wood preservation method is still chemical agent preservation. Water-soluble preservatives are the most used, accounting for about 3 / 4 of the total amount of preservatives used. Water-soluble preservatives mainly include: copper chromium arsenic (CCA), copper chromium boron (CCB), fluorochrome phenol arsenic (FCAP), ammonia soluble copper arsenate (ACA), acid copper chromate (ACC), etc. These agents have been widely used, among which CCA has the largest usage, accounting for about 60% of the usage of water-soluble preservatives. However, because these preservatives contain heavy metal elements such as chromium and arsenic, which are...

Claims

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Application Information

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IPC IPC(8): B27K3/52
Inventor 鲍滨福陈安良孙芳利李桥毛胜凤杨乐
Owner ZHEJIANG FORESTRY UNIVERSITY
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