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A method of wood preservative treatment using biomass pyrolysis oil

A biomass pyrolysis oil and biomass pyrolysis technology, applied in wood treatment, wood treatment details, impregnated wood, etc., can solve the problems of lack of technical methods, etc., achieve environmental friendliness, good anti-loss performance, and low production and treatment costs Effect

Inactive Publication Date: 2017-09-08
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because it is rich in phenols, organic acids, furans, alcohols, and lignin oligomers, biomass pyrolysis oil shows good antioxidant activity and certain antibacterial properties. It also has application potential, but there is still a lack of corresponding technical methods

Method used

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  • A method of wood preservative treatment using biomass pyrolysis oil
  • A method of wood preservative treatment using biomass pyrolysis oil
  • A method of wood preservative treatment using biomass pyrolysis oil

Examples

Experimental program
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Effect test

Embodiment 1

[0034] (1) Preparation of biomass pyrolysis oleyl alcohol solution:

[0035] Take 10 parts of larch bark pyrolysis oil and 100 parts of methanol solvent, mix them evenly, and perform ultrasonic treatment. The ultrasonic power is 120W, the treatment time is 20 minutes, and the temperature is 30°C to obtain a biomass pyrolysis oil-alcohol solution for use.

[0036] (2) Preparation of carboxymethyl chitosan quaternary ammonium salt:

[0037]Get 6 parts of carboxymethyl chitosan, join the 3-chloro-2 hydroxypropyltrimethylammonium chloride of first batch of 15 parts together in the isopropanol solution of 15% in the volume concentration of 60 parts, in Stir and react for 1 hour at an ultrasonic power of 80W and a reaction temperature of 70°C; after that, add a second batch of 15 parts of 3-chloro-2-hydroxypropyltrimethylammonium chloride, and continue to stir and react at an ultrasonic power of 80W and 75°C for 3 Hours; after the reaction, pour the slightly yellow viscous reaction...

Embodiment 2

[0043] (1) Preparation of biomass pyrolysis oleyl alcohol solution:

[0044] Take 15 parts of cotton stalk pyrolysis oil and 120 parts of ethanol solvent, mix them evenly, and perform ultrasonic treatment. The ultrasonic power is 130W, the treatment time is 22 minutes, and the temperature is 28°C to obtain a biomass pyrolysis oil-alcohol solution for use.

[0045] (2) Preparation of carboxymethyl chitosan quaternary ammonium salt:

[0046] Get 8 parts of carboxymethyl chitosan, join together with the 3-chloro-2 hydroxypropyl trimethyl ammonium chloride of the first batch of 20 parts, be in the isopropanol solution of 16% in the volume concentration of 60 parts, in Stir and react for 1 hour at an ultrasonic power of 90W and a reaction temperature of 75°C; after that, add a second batch of 20 parts of 3-chloro-2-hydroxypropyltrimethylammonium chloride, and continue to stir and react at an ultrasonic power of 95W and 75°C for 3 hour; after the reaction finishes, pour the slightl...

Embodiment 3

[0052] (1) Preparation of biomass pyrolysis oleyl alcohol solution:

[0053] Take 20 parts of poplar bark pyrolysis oil and 150 parts of methanol solvent, mix them evenly, and then perform ultrasonic treatment. The ultrasonic power is 140W, the treatment time is 26 minutes, and the temperature is 30°C to obtain a biomass pyrolysis oil-alcohol solution for later use.

[0054] (2) Preparation of carboxymethyl chitosan quaternary ammonium salt:

[0055] Get 10 parts of carboxymethyl chitosan, join together with the 3-chloro-2 hydroxypropyltrimethyl ammonium chloride of the first batch of 22 parts, be in the isopropanol solution of 18% in the volume concentration of 80 parts, in Stir and react for 1 hour at ultrasonic power of 100W and reaction temperature of 70°C; after that, add the second batch of 22 parts of 3-chloro-2-hydroxypropyltrimethylammonium chloride, and continue to stir and react at ultrasonic power of 110W and 65°C for 3 Hours; after the reaction, pour the slightly...

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Abstract

The invention relates to a method of wood preservative treatment by means of biomass pyrolysis oil and belongs to the field of wood science and technology. The method includes the steps of: 1) preparing a biomass pyrolysis oil alcohol solution from the biomass pyrolysis oil and an alcohol organic solvent; 2) adding carboxymethyl chitosan and 3-chloro-2-hydropropyl trimethyl ammonium chloride, which is added in two batches, to an isopropyl alcohol solution, and performing an ultrasonic stirring reaction for 3-4 h, and performing suction filtration, washing and drying to prepare carboxymethyl chitosan quaternary ammonium salt; 3) mixing the biomass pyrolysis oil alcohol solution with the carboxymethyl chitosan quaternary ammonium salt, and performing microwave treatment to prepare a biomass pyrolysis oil / carboxymethyl chitosan quaternary ammonium salt preservative; and 4) performing operations including initial vacuum, pressurization, pressure retention, pressure relief, balancing, etc, in the preservative to complete the wood preservative treatment. In the method, the green and reproducible pyrolysis oil is employed as a main raw material, so that treatment cost is low. The preservative is stably combined with wood and has good anti-loss performance. The treated wood, during usage, is environment-friendly, is safe to human and has good durability.

Description

technical field [0001] The invention relates to a method for wood preservative treatment using biomass pyrolysis oil, which belongs to the field of wood science and technology. Background technique [0002] As a natural environment-friendly low-carbon material, wood has always been loved and widely used by people for its irreplaceable unique aesthetic characteristics, natural and fine texture and excellent and friendly hand feeling compared with artificial materials. important role in people's lives. However, many woods are susceptible to decay fungus and affect their use value. Therefore, in order to save wood and make efficient use of forest resources, before using wood, it usually needs to undergo anti-corrosion treatment. Through anti-corrosion treatment, the ability of wood to resist decay, discoloration, and insects can be improved, and the service life of wood can be extended. [0003] Wood preservation is mainly achieved by impregnating antiseptic agents to destroy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K3/08B27K3/50B27K3/02C08B37/08
CPCB27K3/025B27K3/08B27K3/50B27K2240/20C08B37/003
Inventor 任学勇常建民
Owner BEIJING FORESTRY UNIVERSITY