Reagent used for corrosion prevention of populus tomentosa plate white rot fungi

A technology of white rot fungi and poplar tomentosa, which is applied in the direction of wood treatment, wood impregnation, wood impregnation, etc., to achieve the effects of being environmentally friendly, improving chemical stability, and improving anti-corrosion performance.

Inactive Publication Date: 2018-11-02
ANHUI DAIJIA CRAFT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a reagent for white rot fungus antiseptic of

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A kind of reagent that is used for white rot fungus anticorrosion of Populus tomentosa plate, its preparation method comprises the following steps:

[0015] (1) Prepare raw materials according to the following weight ratio: 10 parts of chitosan, 29 parts of hydroxycarboxylic acid aqueous solution with a concentration of 4.2mol / L, 1.2 parts of dimethylformamide, 10 parts of copper chloride dihydrate, precipitated white carbon black 7 parts, 1.5 parts of salicylic acid, 0.05 part of trisiloxane surfactant, 0.02 part of mercapto-containing silane coupling agent;

[0016] (2) Ultrasonic dissolve chitosan, copper chloride dihydrate, 4.2mol / L hydroxycarboxylic acid aqueous solution, and dimethylformamide in water, then heat up to 65°C, stir and react for 1.2 hours, then use hydrogen Adjust the pH value of the mixed solution with sodium oxide to 5.6, continue the heat preservation reaction for 25 minutes, rinse with deionized water to neutrality after completion, then ultrafil...

Embodiment 2

[0021] A kind of reagent that is used for white rot fungus anticorrosion of Populus tomentosa plate, its preparation method comprises the following steps:

[0022] (1) Prepare raw materials according to the following weight ratio: 10 parts of chitosan, 32 parts of hydroxycarboxylic acid aqueous solution with a concentration of 4mol / L, 0.8 parts of dimethylformamide, 12 parts of copper chloride dihydrate, 6 parts of precipitated white carbon black part, 2 parts of salicylic acid, 0.02 part of trisiloxane surfactant, 0.03 part of silane coupling agent containing mercapto;

[0023] (2) Dissolve chitosan, copper chloride dihydrate, 4.5 mol / L hydroxycarboxylic acid aqueous solution, and dimethylformamide in water by ultrasonic, then heat up to 70°C, stir and react for 1.5 hours, then use hydrogen Adjust the pH value of the mixed solution with sodium oxide to 5.4, continue the heat preservation reaction for 30 minutes, rinse with deionized water to neutrality after completion, then ...

Embodiment 3

[0028] A kind of reagent that is used for white rot fungus anticorrosion of Populus tomentosa plate, its preparation method comprises the following steps:

[0029] (1) Prepare raw materials according to the following weight ratio: 10 parts of chitosan, 26 parts of hydroxycarboxylic acid aqueous solution with a concentration of 4.5mol / L, 1.6 parts of dimethylformamide, 8 parts of copper chloride dihydrate, precipitated white carbon black 8 parts, 1 part of salicylic acid, 0.08 part of trisiloxane surfactant, 0.01 part of mercapto-containing silane coupling agent;

[0030] (2) Dissolve chitosan, copper chloride dihydrate, 4mol / L aqueous solution of hydroxycarboxylic acid, and dimethylformamide in water by ultrasonic, then heat up to 60°C, stir and react for 1 hour, and oxidize with hydrogen Adjust the pH value of the mixed solution with sodium to 5.8, continue the heat preservation reaction for 20 minutes, rinse with deionized water to neutrality after completion, then ultrafilt...

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Abstract

The invention belongs to the technical field of plate treatment and particularly relates to a reagent used for corrosion prevention of populus tomentosa plate white rot fungi. A preparation method ofthe reagent comprises the steps of preparing of raw materials, preparation of a modified chitosan copper compound, preparation of a moderating solution and preparation of a corrosion prevention reagent. Compared with the prior art, the reagent for corrosion prevention of the populus tomentosa plate white rot fungi has the following advantages that the modified chitosan copper compound is synergistically prepared through dimethylformamide and a hydroxy carboxylic acid aqueous solution with the concentration being 4-4.5 mol/L, the chemical stability of the corrosion-prevention reagent can be improved through a precipitated silica mixed solution, meanwhile, the corrosion-prevention property of the corrosion-prevention reagent to the populus tomentosa plate white rot fungi can be improved, andthe white-rot-prevention effect on masson pine is obvious; and the reagent formula is friendly to the development environment, the prevention and treatment effects on populus tomentosa plates and other wood rot fungi and the loss-resistant and permeability-resistant properties can be effectively improved, accordingly, the using range of the plate is expanded, and the service life of the plate isprolonged.

Description

technical field [0001] The invention belongs to the technical field of plate treatment, and in particular relates to a reagent for antisepsis of white rot fungi of poplar tomentosa plates. Background technique [0002] Populus tomentosa has strong adaptability, wide distribution, good material, fast growth, long life, and drought resistance. Its wood is white, straight in texture, high in fiber content, easy to dry, easy to process, good in paint and cementation, and can be used for construction, For materials such as furniture, box boards, matchsticks, and papermaking, poplar tomentosa has poor natural corrosion resistance. After 12 weeks of decay, the mass loss rate of the specimens caused by the action of Coriolus versicolor reached 63.86%. Corrosion resistance grading standard, Populus tomentosa belongs to the tree species not resistant to decay, the wood of Poplar tomentosa is treated with chitosan copper complex, chitosan zinc complex and chitosan metal complex respect...

Claims

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Application Information

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IPC IPC(8): B27K3/52
CPCB27K3/52B27K2240/20
Inventor 代明友马贺桥吴凌云
Owner ANHUI DAIJIA CRAFT CO LTD
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