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Wood bamboo material corrosion and discoloration prevention triazole composition and preparation method thereof

A composition and anti-discoloration technology, applied in the direction of wood treatment, wood impregnation, wood impregnation, etc., can solve the problems of not being used to improve the anti-loss performance of preservative components, the corrosion of metal pressure treatment equipment parts, and the inability to maintain the true color of wood. , to achieve the effects of low preparation and use, excellent anticorrosion, and improved anti-bleeding performance

Active Publication Date: 2016-10-12
INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1) Environmental protection and recycling of copper from anti-corrosion waste wood After ACQ anti-corrosion wood reaches its service life, since copper does not degrade basically, it involves the recovery of copper from solid waste wood
In addition, the color of wood after ACQ treatment is blue-green, which cannot keep the original color of wood
[0005] 2) The use cost of ACQ is high, and it is difficult to be compatible with isothiazolinone antifungal agents; during production, the parts of metal pressure treatment equipment are severely corroded
Not used to enhance the anti-run off properties of preservative ingredients

Method used

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  • Wood bamboo material corrosion and discoloration prevention triazole composition and preparation method thereof
  • Wood bamboo material corrosion and discoloration prevention triazole composition and preparation method thereof
  • Wood bamboo material corrosion and discoloration prevention triazole composition and preparation method thereof

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preparation example Construction

[0053] (2) The preparation of the triazole composition working solution and the first pressurized treatment and drying method for wood and bamboo, the prepared triazole concentrate is diluted with water, and then added to the CMIT / MIT solution to mix and dilute to obtain the triazole Composition working solution.

[0054] That is, (1) and (2) are: first prepare the triazole concentrated solution, and the weight percentage of each component in the triazole concentrated solution is composed of: 4.1% to 15.6% of triazole compounds, ethanol and N,N-dimethylformaldehyde The combination of amide (DMF) is 33.6-67%, the combination of amine oxide and quaternary ammonium salts or the combination of dodecylbenzenesulfonate calcium salt and fatty alcohol polyoxyethylene ether (MOA-15) is 20.7-26.5%, and the rest is water; Wherein the triazole compound is a combination of hexaconazole, cyproconazole, econazole, triaconazole, propiconazole / tebuconazole 1:0.68-0.95. Add some water to the t...

Embodiment 1

[0059] Example 1 The preparation method of hexaconazole (Hex) stoste

[0060] Weigh 210g 95% hexaconazole into a 2000ml small reactor, add 400g 95% ethanol and 200g DMF, after the hexaconazole dissolves, add 73g 30% dodecyl dimethyl amine oxide (OA-12)) and 440g 99% Octadecyltrimethylammonium Chloride, use a stirrer to stir for 10 minutes at a speed of 300-1000r / min. After stirring evenly, a water-soluble hexaconazole preparation, referred to as Hex, is obtained. The weight percentage of each component is: 15.0% of hexaconazole, 43.8% of ethanol and DMF, dodecyl dimethylamine oxide and octadecyl tris The methyl ammonium chloride surfactant is 24.9%, the rest is water, and the ratio of lauryl dimethyl ammonium oxide to octadecyl trimethyl ammonium chloride is 1:14. Add a certain multiple of water to dilute to obtain different concentrations of Hex.

Embodiment 2

[0061] Example 2 The preparation method of epoxiconazole (Epo)

[0062] Weigh 36g of 98% epoxiconazole into a 2000ml small reaction kettle, add 400g of 95% ethanol and 200g of DMF, after the epoxiconazole is dissolved, add 110g of 70% calcium dodecylbenzenesulfonate and 110g of MOA-15 . The stirrer rotates at 300-1000r / min and stirs for 10 minutes. Stir evenly to obtain epoxiconazole, referred to as Epo preparation, the weight percentage of each component is composed of: epoxiconazole 4.1%, ethanol and DMF 67%, dodecylbenzenesulfonate calcium salt and MOA-15 ​​are 1.8% . Add 718 times of 25% ethanol to dilute to obtain 0.0057% Epo.

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Abstract

The invention relates to a wood bamboo material corrosion and discoloration prevention triazole composition and a preparation method thereof. The preparation method comprises the following steps: preparing a triazole concentrate comprising 4.1-15.6wt% of a triazole compound, 33.6-67wt% of an ethanol and N,N-dimethyl formamide (DMF) combination, 20.7-26.5wt% of an amine oxide and quaternary ammonium salt combination or a calcium dodecyl benzene sulfonate and fatty alcohol polyoxyethylene ether (MOA-15) combination, and the balance of water, wherein the triazole compound is hexaconazole, cyproconazole, epoxiconazole, triadimenol, or a propiconazole/tebuconazole combination with the ratio of propiconazole/tebuconazole of 1:0.68-0.95; and adding parts of water to the triazole concentrate, adding 5-chloro-2-methyl-1-isothiazoline-3-one/2-methyl-1-isothiazoline-3-one (CMIT-MIT), and diluting the above obtained solution to obtain a triazole composition operating fluid. When the triazole composition operating fluid is used to carry out vacuum pressurizing treatment on a wood bamboo material, the wood bamboo material is dried until the water content of 20-25%, 5-9% low-molecular weight (the molecular weight is smaller than 1000) phenolic resin (PF) is used to carry out secondary vacuum pressurizing treatment, and the two-stage treated wood bamboo material has excellent corrosion, mildew and discoloration resistance and excellent triazole anti-loss performance after being dried.

Description

technical field [0001] The invention relates to an antiseptic and anti-discoloration composition for wood and bamboo and a method for preparing and treating the wood and bamboo, which is suitable for indoor and outdoor, especially outdoor anticorrosion and anti-discoloration treatment of wood, bamboo or wood and bamboo products. Background technique [0002] At present, copper chromium arsenic (CCA), a wood preservative containing chromium and arsenic, is widely used in China, which is highly toxic to humans. After the antiseptic wood reaches the service life, it involves the harmless treatment of solid waste. CCA has potential harm to the environment. Domestic its use has been prohibited or severely restricted. [0003] In practical applications, wood and bamboo treated with environmentally friendly preservatives such as ammonia (amine) soluble copper quaternary ammonium (ACQ) have excellent anti-corrosion and anti-termite effects, and good anti-loss performance, but there ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/50B27K5/04B27K9/00
CPCB27K3/50B27K5/04B27K9/002B27K2240/20B27K2240/90
Inventor 蒋明亮马星霞李晓文席丽霞
Owner INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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