What are the antiseptic treatment methods of rubberwood?

Rubberwood. Refers to rubber tree wood. The rubber tree is a tall tropical tree.

Because it can produce natural rubber.

It is widely cultivated as a cash crop in Indonesia, Thailand, Masoncia, India, Vietnam, the Philippines, Cambodia, and Sri Lanka.

and tropical regions such as South China.

The main product of the rubber plantation industry is natural rubber, and the by-product is rubber wood. Rubber wood is a kind of high-grade wood with uniform material, light and elegant color, delicate pattern, moderate weight, hardness, strength and toughness, easy to dry and deform, and good mechanical processing performance. However, due to the abundance of sugar, starch, protein, etc., rubber wood is easy to suffer from insects, molds and color-changing bacteria, etc., and its natural life span is very short, and it loses its use value in only about one year.

Therefore, it cannot be used as long-term materials, but can only be used as temporary materials such as firewood and building templates, and the utilization value is very low. In order to develop and utilize rubberwood resources, some rubberwood protection technologies have been researched and developed at home and abroad. However, it has the following drawbacks:

Under normal circumstances, there will be no insects, but sometimes part of the wood will be eaten by small beetles during the drying period, and the decay will stop after the kiln is dried, leaving many small insect holes on the surface of the wood;

During the drying period, most of the wood does not grow mold, and a few will develop mold. The planed kiln dried wood is placed indoors, and it will not grow mildew when the weather is dry, and mildew will grow when it rains for days and is wet;

The surface of the wood does not change color during drying, but there is a part of the inner layer of the wood that does change color. The inner layer of discolored wood looks normal from the surface, but after sawing, it will reveal blue-black (PQ "blue discoloration", which is the result of the harm of discolored bacteria), furniture and other products made of such wood, the appearance of the natural color of rubber wood is poor, and it does not meet the mentality needs of contemporary consumers who advocate returning to nature, and the market competitiveness is not strong, and the sales and selling prices are affected.

Rubberwood anticorrosive treatment is generally carried out with wood anticorrosive tank for anticorrosive treatment, high efficiency, good effect, short processing time, can process rubberwood in large quantities, energy saving and environmental protection, convenient and fast to use. Due to the peculiarities of rubber trees, the harvested rubber wood quickly becomes discolored, moldy and rotten. Therefore, it is necessary to be able to carry out anti-corrosion treatment equipment in large quantities, which can be quickly carried out anti-corrosion treatment, and the use of large-volume wood anti-corrosion tanks can process rubber wood in large quantities, with short processing time and thick vacuum high-pressure anti-corrosion depth.

Rubberwood treatment can be built in a large treatment pool for impregnation treatment, can also use anti-corrosion tank for rapid treatment, in view of the characteristics of rubber wood is easy to change color and decay, it is recommended to use wood rapid anti-corrosion tank for anti-corrosion treatment.

1. Asphalt anticorrosion: first spray some water on the surface of the wood, but do not put the wood directly in the water, as long as the water content of the wood should be more than 40%, and then dilute the asphalt, evenly spread the diluted asphalt on the wood, and dry it in a cool and ventilated place.

2. Sodium fluoride antiseptic: bury the wood in the contact position between the telephone pole and the soil, and then apply the sodium fluoride solution on the surface of the wood, and cover it tightly with plastic film after application.

3. Oil preservatives, such as antiseptic oil and coal tar, can also be used to evenly apply these preservative oils on the surface of the wood, which can prevent the wood from rotting and being eaten by insects.

Clause.

1. Wood antiseptic treatment method - soaking method. At room temperature and pressure, the wood is soaked in a tank or pool containing the preservative solution, and the wood is always below the liquid level. The soaking time depends on the tree species, wood specifications, moisture content and type of agent, and is subject to the specified amount of agent retention and penetration.

In order to improve the treatment effect, ultrasonics, heating devices, and surfactants can be added to the soaking solution to improve the permeability of the wood. Depending on the length of immersion, the immersion method can be divided into instantaneous immersion (a few seconds to a few minutes), short-term immersion (a few minutes to hours) and long-term immersion (a few hours to 1 month). Suitable for veneer and remedial preservative treatments, as well as temporary wood.

Clause. Second, wood preservative treatment method - diffusion method. According to the principle of molecular diffusion, with the help of the moisture in the wood as the carrier of the diffusion of the agent, the agent diffuses from high concentration to low concentration and spreads to the deep layer of the wood. For this reason, the diffusion method of antiseptic treatment of wood must meet the following conditions:

1. The moisture content of small timber is high enough, usually more than 35% and 40%, and the raw timber is the best;

2. Water-borne agent (diffusion type), high solubility and slow curing;

3. The ambient temperature and humidity are high. According to the operation process, the diffusion method can be divided into slurry diffusion method, impregnation or spray diffusion method, strap diffusion method, borehole diffusion method (or drip diffusion method) and two-agent diffusion method. The diffusion method has less investment in equipment and simple production process.

It is easy to be applied and promoted in the vast rural areas. Similar to this method is the sap replacement method.

Answer 1, chemical preservative: refers to the addition of wood preservative, the use of a non-soluble water-based preservative, in a closed vacuum tank to apply pressure to the wood at the same time, the preservative into the wood, so as to achieve the effect of inhibiting the reproduction of wood rot fungi.

2. Natural antiseptics: refers to the addition of wood preservatives to reduce the moisture content of wood, usually the moisture content of wood is less than 18%, wood rot bacteria can not reproduce, wood is placed in a ventilated place to avoid moisture.

3. Anti-corrosion of hot and cold groove: put the wood into the hot solution for heating, according to the principle of thermal expansion and contraction, there will be a pressure difference inside the wood, which can overcome the osmotic resistance, and when the internal pressure of the wood is greater than the atmospheric pressure, the wood will be put into the cold tank immediately, and the air inside the wood will shrink when it is cold, so as to produce negative pressure, so that the cold liquid can easily enter the wood, so as to achieve the purpose of anti-corrosion.

Wood decay is essentially a biological phenomenon, which is reflected in the decomposition of the wood cell wall by fungi in nature, causing wood mold, and the fungal species that are easy to cause wood mold include Trichoderma, Penicillium, and Mucor. Whether the wood is in the natural environment or cut down for storage, as long as it is in a warm and humid climate, in the case of poor ventilation, the mold spores on the surface of the wood will multiply, and then promote the growth of mold and mildew in the wood.

Hope it helps, dear

The exterior is mainly treated to block the contact of the wood with oxygen, water or some other factors (organisms, etc.). Such as paints, varnishes, and many more.

Through vacuum and high-pressure impregnation, the physical process of driving the preservative into the wood is first realized, and the chemical reaction process between the active ingredients of part of the preservative and the starch, cellulose and sugar in the wood is completed at the same time. It destroys the living environment of bacteria and insects that cause wood decay.

Anticorrosive oil, lacquer impregnation, lacquering, moisture-proof ,...

At present, the main method of preservative treatment of wood of the same sex in the world is: the use of an insoluble water-based preservative, in a closed vacuum tank to apply pressure to the wood at the same time, the preservative into the wood avant-garde. After pressure treatment, the wood is more stable, and the preservatives can effectively prevent the attack of mold, termites and insects on the wood.

As a result, the treated wood has excellent corrosion resistance for long-term use in harsh outdoor environments. Treated wood, ideal for outdoor furniture; It has been widely used in foreign countries, such as courtyards, outdoor floors, marinas, fences, park chairs, flower stands, etc.

Summary. One. What is rubberwood furniture.

Rubberwood furniture is a cost-effective piece of furniture made from a rubberwood trunk. When the rubber tree is old, it can use its trunk to make furniture. Rubberwood furniture is divided into two categories: domestic and imported.

China's rubberwood is 2500 3000 yuan cubic meters, imported rubberwood is about 3500 yuan cubic meters, and some even reach 6000 yuan cubic meters, imported rubberwood is a leader in the furniture market.

Two. Advantages and disadvantages of rubberwood.

1.Color.

In terms of color, rubberwood is lighter in color, but it is this light and natural color that makes rubberwood very easy to process and can be applied with any type of colorant. Many times, rubberwood furniture is not a single material, but rubberwood is very good to color, and it is very easy to process it into the same color as the material it is combined with. This is also one of the advantages of rubberwood!

2.Grain.

The wood grain on the surface of the rubberwood furniture is clear and natural, and the arrangement is relatively uniform, and the grain is like a hill continuously, which is called the mountain pattern, which looks particularly beautiful. The natural and beautiful texture is the unique decoration of rubberwood furniture, which should also be regarded as an advantage when counting the advantages and disadvantages of rubberwood furniture!

Does rubberwood still need to be preserved after drying at high temperatures?

Need. One. Rubberwood furniture is a cost-effective furniture made of rubber or wood trunks.

When the rubber tree is old, it can use its trunk to make furniture. Rubberwood furniture is divided into two categories: domestic and imported. China's rubberwood is 2500 3000 yuan cubic meters, imported rubberwood is about 3500 yuan cubic meters, and some even reach 6000 yuan cubic meters, imported rubberwood is a leader in the furniture market.

Two. Advantages and disadvantages of rubberwood 1In terms of color, rubberwood is lighter in color, but it is this light and natural color that makes rubberwood very easy to process and can be applied with any type of colorant.

Many times, rubberwood furniture is not a single material, but rubberwood is very good to color, and it is very easy to process it into the same color as the material it is combined with. This is also one of the advantages of rubberwood! 2.

The wood grain on the surface of the rubberwood furniture is clear and natural, and the arrangement is relatively uniform, and the texture is like a hill continuously, which is called the mountain pattern, which looks particularly beautiful. The natural and beautiful texture is the unique decoration of rubberwood furniture, which should also be regarded as an advantage when counting the advantages and disadvantages of rubberwood furniture! 3

So it needs to be embalmed.

The equipment factory said that there is no need to do anti-corrosion after drying with high-temperature steam.

There is no need to do anti-corrosion because it is not very corrosive, and it is better to do it.

It is said that high-temperature steam itself plays a sterilizing and disinfection role.

I think it's better to do it. Good. Hope.

Hello, the treatment of wood preservative has the following aspects.

Vacuum high-pressure impregnation: This process is a key step in the preservative treatment, first of all, the physical process of driving the preservative into the wood is realized, and at the same time, the chemical reaction process of part of the preservative active ingredients and the starch, cellulose and sugar in the wood is completed. It destroys the living environment of bacteria and insects that cause wood decay.

High temperature qualitative: continue to make the preservative penetrate into the wood as evenly as possible at high temperature, and continue to complete the chemical reaction process between the active ingredients of the preservative and the starch, cellulose and sugar in the wood. Further damage to the living environment of bacteria and insects that cause wood decay.

Natural air drying: natural air drying requires air drying in the actual use of wood, this process is to adapt to the changes in the cell structure of outdoor wood due to environmental changes, so that it can be fully fixed to the greatest extent in the process of gradation, so as to avoid changes in the use process.

Construction and maintenance: impregnated wood has a high moisture content, must be left to air dry for a period of time before use, the storage warehouse is kept ventilated, in order to facilitate the drying of wood, any reprocessing of impregnated wood must be more than 72 hours after its delivery. Fabrication & Installation:

As far as possible, use impregnated wood of existing size, it is recommended to use hot-dip galvanized nails or screws for connection and installation, pre-drilling holes should be drilled when joining, so as to avoid cracking, and the glue should be waterproof.

Use Sanyu Chemical wood preservatives AQ, CCA, CA, etc., to treat wood antiseptic, insect and termite control methods are:

1. Brush and spraying treatment: fully absorb the surface of the wood, that is, (complete wetting as the standard), it is recommended to dilute the water to 1:10 and brush 2-3 times.

2. Soaking treatment: The water surface is completely covered with wood as the standard, and the recommended water dilution ratio is 1:8-10 and the soaking treatment time is 12-24 hours.

3. Vacuum pressurization method: It is recommended to use a concentration of 2%-3% for vacuum pressurization treatment.

A process that prevents Trichoderma, insects, discoloration and deformation. Generally, it is required to sawn rubber logs within 1 day, followed by chemical treatment and drying. In the past, chemical agents were sodium pentachlorophenol, but now they are mainly borides.

The treatment methods include vacuum pressure immersion and cooking and immersion. Kiln drying method is generally adopted. Including log protection treatment and timber protection treatment.

Wood is a lignified tissue formed by plants that can grow secondarily, such as trees and shrubs. Do you know what are the treatment methods for wood preservation? Check it out!

Soaking method: Soak the wood in a tank or pool containing preservative solution at room temperature and pressure, and the wood is always below the liquid level.

The soaking time depends on the tree species, wood size, moisture content and type of agent, and it is necessary to achieve the specified amount of medicine retention or penetration.

The hot cold tank uses the principle of thermal expansion and contraction to make the gas in the wood expand and contract, resulting in a pressure difference, so as to overcome the permeation resistance of the liquid.

When the wood is heated in a hot liquid, the air in the wood expands, some of the water evaporates, the internal pressure of the wood is higher than the atmospheric pressure, and the air and water vapor spill out to the outside.

According to the treatment method and the configuration of the cold tank, it can be divided into double tank alternating method, single tank hot and cold liquid alternating method, and single tank cooling method. Tongwu.