Preparation method for loss-resistance water-based wood preservative

A wood preservative and anti-loss technology, which is applied in the direction of wood impregnation, impregnated wood, wood processing equipment, etc., can solve the problems of endangering aquatic organisms and the decline of anti-corrosion effect, and achieve improved anti-corrosion, increased density, and improved anti-loss performance Effect

Inactive Publication Date: 2018-04-20
常州市瑞泰物资有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main technical problem of the present invention is to provide a loss-resistant water-based wood preservative for the current common borate-based water-based wood preservatives, which are easy to lose with water and face the defects of reduced anti-corrosion effect and harm to aquatic organisms during use. The preparation method of the agent

Method used

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  • Preparation method for loss-resistance water-based wood preservative

Examples

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example 1

[0024] Put rosin, isopropanol and sodium hydroxide into a four-neck flask equipped with a thermometer, stirrer and reflux device at a mass ratio of 3:4:1, put it in a water bath, heat up to 60°C, and keep stirring for 20 minutes , then add epichlorohydrin equal to the quality of rosin and triethylamine with 70% of the mass of rosin to the four-neck flask, reflux at 75°C for 18 hours, and then distill and recover the unreacted epichlorohydrin and triethylamine to obtain the cation Thick rosin liquid, weigh the pomegranate peel and put it into a tissue grinder to grind for 20 minutes to obtain the crushed pomegranate peel, mix the crushed pomegranate peel and water at a mass ratio of 1:20 to obtain a mixed solution, and then add Sodium sulfite with 0.5% pomegranate peel mass, heated in an oil bath to 100°C for 3 hours, then filtered and separated to obtain the filtrate, which is the pomegranate peel extract. Soybeans, milk and 50% sodium chloride solution with a mass fraction of ...

example 2

[0026]Put rosin, isopropanol and sodium hydroxide into a four-neck flask equipped with a thermometer, agitator and reflux device according to the mass ratio of 3:4:1, put it in a water bath, heat up to 65°C, keep stirring for 25min , then add epichlorohydrin equal to the quality of rosin and triethylamine with 75% of the mass of rosin to the four-neck flask, reflux at 80°C for 19 hours, and then recover unreacted epichlorohydrin and triethylamine by distillation to obtain cations Thick rosin liquid, weigh the pomegranate peel and put it into a tissue grinder to crush for 25 minutes to obtain the crushed pomegranate peel, mix the crushed pomegranate peel and water at a mass ratio of 1:20 to obtain a mixed solution, and then add Sodium sulfite with 0.6% pomegranate peel mass, heated in an oil bath to 103°C for 4 hours, then filtered and separated to obtain the filtrate, which is the pomegranate peel extract. Soybeans, milk, and 50% sodium chloride solution with a mass fraction of...

example 3

[0028] Put rosin, isopropanol and sodium hydroxide into a four-necked flask equipped with a thermometer, stirrer and reflux device at a mass ratio of 3:4:1, put it in a water bath, heat up to 70°C, and keep stirring for 30 minutes , then add epichlorohydrin equal to the quality of rosin and triethylamine with 80% of the mass of rosin to the four-neck flask, reflux reaction at 85°C for 20h, and then recover the unreacted epichlorohydrin and triethylamine by distillation to obtain the cation Thick rosin liquid, weigh the pomegranate peel and put it into a tissue grinder to crush for 30 minutes to obtain the crushed pomegranate peel, mix the crushed pomegranate peel and water at a mass ratio of 1:20 to obtain a mixed solution, and then add Sodium sulfite with 0.8% pomegranate peel mass was heated in an oil bath to 105°C for 5 hours, and the filtrate was obtained by filtration and separation, which was the pomegranate peel extract. Soybeans, milk, and 50% sodium chloride solution w...

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Abstract

The invention relates to a preparation method for a loss-resistance water-based wood preservative, and belongs to the technical field of wood preservation. According to the preparation method, rosin thick liquid is prepared from rosin, an extracting solution rich in tannin and protein is obtained from pomegranate bark and soybean, the rosin thick liquid and the extracting solution are mixed to react with boric acid, and therefore the antiseptic and filling effects are achieved, and the wood corrosion resistance is improved; by means of ingredients including the tannin and the protein added into the water-based wood preservative, a polymer network can be built in wood, a borate compound is attached to the treated wood, and the loss-resistance of the preservative is improved; by means of therosin thick liquid with positive charges, the effect of protecting borate can be achieved, the rosin thick liquid has the hydrophobic property, and therefore the wood moisture absorption capacity canbe reduced; and the water content in wood cannot meet the water content condition needed by survival and multiplying of microorganisms like wood-destroying fungi, and therefore the wood corrosion resistance is improved, and the wide application prospect is achieved.

Description

technical field [0001] The invention relates to a preparation method of an anti-loss water-based wood preservative, which belongs to the technical field of wood preservatives. Background technique [0002] Wood is the only renewable structural material among the four major materials. It has the characteristics of non-toxic, non-polluting, beautiful, and easy to process. It is the most friendly to human beings and is a green natural product that is loved by people. However, the main components of wood are lignin, cellulose, and hemicellulose. When the temperature, moisture, humidity, and pH are suitable, they are easily corroded by insects and fungi, which shortens the service life of wood. How to efficiently and rationally utilize timber resources and prolong the service life of timber has become an urgent problem to be solved. According to statistics at home and abroad, the service life of wood after anti-corrosion treatment can be extended by 5 to 6 times. Therefore, ant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/52
Inventor 徐颜峰林茂兰张淑娴
Owner 常州市瑞泰物资有限公司
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