KR20130134456A - The composition of emulsificable preservatives on wood maintenance for termite control - Google Patents

Abstract

The present invention relates to an emulsion preservative composed of existing chemicals with different functions for wood maintenance and termite control, wherein the preservative controls termite, mold, rot fungus, and the like. Particularly, the preservative is applied to control discoloration of timber and surface contaminating germ since termite killing performance and mold control performance are excellent. The preservative includes dinotefuran, iodopropynyl butylcarbamate, propiconazole, Caryophylli Flos, a solvent, and an emulsifier.

Description

[0001] The present invention relates to wood preservatives for preserving termites,

The present invention relates to an emulsifiable wood preservative for controlling termites, fungi and fungus which are harmful to timber prepared by compounds having different performance. In particular, the present invention relates to an emulsifying wood preservative which has excellent insecticidal performance against termites and excellent anti- Therefore, it is applied to termite and wood discoloration and surface contamination control for maintenance of tree structure.

Recently, the use of wooden structures has been greatly increased. This is because timber is a more environmentally friendly and environmentally friendly material than other building materials. Another factor is the decision to recognize harvested wood (HWP) as carbon offset credits as a carbon stock source for greenhouse gas mitigation in response to climate change. Wooden structures are the most favorable condition for long-term preservation of carbon stored in wood.

However, there are various problems such as surface condensation, internal condensation, and problems of cooling due to cooling, resulting in rotten wood and damage caused by termites. In addition to this economic loss, it also reduces the structural strength and poses a serious threat to the residential safety.

Wood preservatives have been used to protect wood from these phenomena, and these wood preservatives vary. First, there are roughly divided into prophylactic agents to prevent deterioration in advance and remedies that can be removed when deterioration occurs.

The prophylactic agent is mainly used in the production of a barrier material for industrial products, and a water-soluble preservative is the majority. Water-borne preservatives have no odor and use water as a solvent, which is economical. However, because most of them contain heavy metals, the production of anticorrosives is strictly restricted to prevent environmental pollution. Only. Therefore, it is not available at the biological deterioration site of the wooden building. In addition, IPBC applied to the conventional wood as a preventive agent has a very low toxicity to manure and excellent sterilization performance, but has insufficient insecticidal effect. To supplement this, Chlorpyrifos, an organophosphorus compound, was mixed and used widely as a preservative for wood application. Domestic wood preservatives such as wood keeper and chlorpyrif are mixed. However, in Japan, chlorpyrifos has almost no carcinogenicity and low residual toxicity to the environment, but since it has high neurotoxicity against human contraction, there is a problem in worker protection and health care, and the industry itself has banned regulation from 2003 through the Building Standards Act have.

Accordingly, although a wood preservative for surface treatment is separately distributed to solve the problems of the above-mentioned wood preservatives, most of the volatile organic compounds used for the dilution of the medicines with the use of the wood preservative are threatening the residential environment. In addition, it is difficult to remove even if it is polluted in the process, and the active ingredient is toxic to the human body. Therefore, most of the deterioration is caused by chemical treatment, and it is not easily decomposed in the environment and remains for a long time. These problems are disadvantageous for maintenance of actual buildings because they act as a factor for consumers to refuse to use medicines. This can be very detrimental to carbon tax offsetting because it affects the period of setting up the default half-life of the carbon storage of the wooden building for the government to reduce greenhouse gas in response to climate change.

On the other hand, the most feared pest in wooden buildings is termites. Termites are distributed all over the country, and recent cases of damage to termites occur frequently in wooden cultural properties and buildings. Termites are mostly transferred to the wood through the soil. Soil treatment around the building is essential for remediation, but there is no termite control agent developed in Korea for soil treatment. And because the soil treatment requires a large amount of chemical solution, it is not economical as an oil medicine and there is a concern of soil contamination by petroleum compounds. Therefore, there is a need for a water-soluble agent having low toxicity and low residual soil toxicity to human skin.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the problems of the above conventional wood preservative, and it is an object of the present invention to provide a preservative by combining a relatively low toxic pesticide and a bactericide, And the emulsified chemical liquid is diluted in water in the field so as to minimize the transportation cost of the logistics and to avoid the possibility of contamination of the indoor air quality by volatile organic compounds.

Also, even when the preservative of the present invention is diluted 50 times with water, it can be used as a termite control agent for soil treatment as well as for wood treatment because it has a very high mortality of termites. It is possible to use it as a discoloration / contamination preventing agent.

In order to attain the above object, the preservative for wood preservative management of termite control of the present invention is characterized by containing dinotefuran, iodopropenyl butylcarbamate, propiconazole and clove.

And further comprising a solvent, an emulsifier, an antifoaming agent and water.

And 2 to 6 wt% of dino-furan, 0.5 to 5 wt% of iodopropenyl butyl carbamate, 0.5 to 4 wt% of propiconazole, 1 to 3 wt% of clove, 8 to 15 wt% of solvent, % By weight of an antifoaming agent, 0.1 to 0.2% by weight of an antifoaming agent, and the balance being water.

Wherein the solvent is N-methyl-2-pyrrolidone, and the emulsifier is a nonionic surfactant.

Wherein the wood preservative preservative is characterized by being used for wood surface treatment or soil treatment.

INDUSTRIAL APPLICABILITY According to the present invention, a low-toxic compound having insecticidal and germicidal performance among the previously developed pesticides is used as an active ingredient and mixed with water serving as a solvent to have excellent termite control effect and, It is possible to minimize indoor air pollution.

In addition, the residual toxicity of the soil is very low, and the insecticidal activity against termites is very excellent, so that it is possible to use it as a soil treatment agent as well as a treatment for a throat.

In addition, by using the clove which is a spice, it is possible to provide a wood preservative which has good odor and is not harmful to human body.

1 to 3 are photographs showing results of the termite control test according to the present invention.
FIG. 4 is a photograph showing a test container for a soil test according to the present invention. FIG.
FIG. 5 is a photograph of a result of the soil penetration test according to the present invention. FIG.

Hereinafter, the present invention will be described in detail.

The preservative for the maintenance of emulsifiable wood of termite of the present invention can be used not only for the surface treatment of wood, but also as a soil treatment agent for the vicinity of wooden buildings. Among the previously developed pesticides, low toxicity Compound.

First, the termite-controlled emulsifiable wood maintenance preservative of the present invention is a pre-registered pesticide dinotefuran ((RS) -1-methyl-2-nitro-3- (tetrahydro-3-) having a low toxicity pesticide. furylmethyl) guanidine), an industrial fungicide with low toxicity against human beings, has a special antibacterial effect against asymptomatic fungi, basidiomycetes and filamentous fungi. Low-toxic pesticides such as propiconazole, dichlorophenyl-4-propyl-1,3-dioxolan-2-ylmethyl-1H-1,2,4-triazole and cloves. And further includes solvents and emulsifiers, optionally including a defoamer. It may also contain a diluent, i. E. Water as a solvent.

Wherein each compound is selected from the group consisting of 2-6% by weight of dinotefuran, 0.5-5% by weight of iodopropenyl butylcarbamate, 0.5-4% by weight of propiconazole, 1-3% by weight of clove, 8-15% by weight of solvent, 10 to 20% by weight of an emulsifier and 0.1 to 0.2% by weight of an antifoaming agent, and the rest may be composed of water, but it is not limited thereto.

When the antifoaming agent is not contained, the amount of the antifoaming agent is preferably 2 to 6% by weight, dinitropropyl butylcarbamate 0.5 to 5% by weight, propiconazole 0.5 to 4% by weight, clove 1 to 3% by weight, solvent 8 To 15% by weight of an emulsifier and 10 to 20% by weight of an emulsifier and the remainder is composed of water.

At this time, when the above-mentioned composition ratio is less than the above-mentioned composition ratio of dinotefuran, iodopropranylbutylcarbamate and propiconazole, the termite control and anti-bacterial effect are lowered, and when the composition ratio is exceeded, It is because. If the clove is less than 1% by weight, the effect becomes insufficient as a bactericide. If the clove is more than 3% by weight, even if the clove is excessive, further sterilizing effect can not be exhibited. If the amount of the emulsifier is less than 8% by weight, it is difficult to act as a solvent. If the amount of the emulsifier is more than 15% by weight, it is not economical. .

Each compound will be described below.

First, the above-mentioned dinotefuran is an Neonicococcidae insecticide, and exhibits an agonistic action against the nicotinic acetylcholine receptors of the insect nervous system, and has an insecticidal action. Organophosphorus insecticides also act on the nervous system of insects, but they exhibit insecticidal action while inhibiting the neurotransmitter acetylcholinesterase. It has an insecticidal effect on pests such as bamboo shoots, insects, beetles, and insects. The chemical name for the dinotefuran is (RS) -1-methyl-2-nitro-3- (tetrahydro- - a (tetrahydro-3-furylmethyl) guanidine }, CAS number is CAS (No.248583-16-1), molecular formula is _{C 7 H 14 N 4 O 3} , molecular weight is 202.21.

And the structural formula thereof is shown in the following structural formula 1.

(Formula 1)

The development of the above-mentioned dinotefuran is an insecticide having a tetrahydropyrimethyl group discovered in 1993 by Mitsui Chemicals. Although the binding affinity to the nicotinic acetylcholinergic receptor is low, it has an electrophysiological characteristic that it exhibits an agonist action. Dino-furan is already registered as pesticide in Korea, such as rice and cucumber, and it is registered in Japan on April 24, 2002 for rice, vegetables, fruits and the like.

The physical properties of the above-mentioned dinotefuran are shown in Table 1 below.

The properties of dinotefuran Exterior White crystals, odorless (room temperature) Melting point 107.5 DEG C Octanol / water partition coefficient logPow = -0.549 (25 < 0 > C) Boiling point Measurable failure due to decomposition at 208 ° C density 1.40 g / cm < 3 > (20 DEG C) Vapor pressure ≪ 1.7 x 10 < -6 > Pa (30 DEG C) Water solubility 4.0 × 107 μg / L (pH 6.98, 20 ° C.) Hydrolytic Half life more than 1 year (pH4, 7, 9, 25 ℃) Underwater Photolysis Half-life of 3.8 hr (distilled water, 25 ° C, 400 W / m 2, 300-800 nm)
3.8 hr (natural water 25 ° C, 416 W / m 2, 300-800 nm)

IPBC is a 3-iodo-2-propynyl butylcarbamate compound, and is an organic iodide-based fungicide and is widely used in paints, inks, fibers, plastics, and the like. In general, organic iodine-based sterilization and fungus agents are highly safe and have a wide spectrum of antibacterial activity. Among them, IPBC is a well-known compound mainly used for sterilization, fungus and fungicide, which has high safety against human shrinkage. White or yellowish white powder, crystalline powder or granular solid with a slight odor. Its low toxicity and acute toxicity LD ₅₀ does not affect skin irritation and mutagenicity in the formulations with 1470 mg / kg oral toxicity and 2000 mg / kg rabbit toxicity to rats. Furthermore, it is a compound having excellent effect of inhibiting growth of fungi, fungi and fungi.

The IPBC registration number of the IPBC is 72304-1100, CAS No. 1. 55406-53-6, the chemical name is 3-Iodo-2-propynyl butyl carbamate, the formula is C ₈ H ₁₂ INO ₂ , the specific gravity (H ₂ O = 1) at 25 ° C is 1.51 to 1.57, Is 98%, and the structural formula thereof is shown in the following structural formula 2.

(Formula 2)

The IPBC can be used in an alkaline or acidic range. Since it is an anionic type, it can be widely used until reaching a nonionic system. It is already known as a highly stable drug and is also registered in EPA. It is particularly effective against fungi. Physical properties of such IPBC are shown in Table 2 below.

Properties of IPBC Molecular Weight Melting point (캜) Specific gravity (g / cm3) Vapor pressure (mmHg) Water solubility (mg / L) Solubility 281.09 64 to 68 1.51 to 1.57 1.8x10-5 156 It dissolves in most organic solvents but hardly soluble in water (156ppm / 20 ° C)

The above prepiconazole is a disinfectant containing triazole-based compounds as an active ingredient, and acts as an ergosterol biosynthesis inhibitor to inhibit the synthesis of ergosterol, an important constituent of fungal cell membranes, against filamentous fungi, and inhibits mycelial growth and spore formation. Since propiconazole is an invasive planter in a plant, a preventive effect and a therapeutic effect can be expected. Chemical name of the pre-pico najol is Dichlorophenyl-4-propyl-1,3- dioxolan-2-ylmethyl-1H-1,2,4-triazole, molecular formula is _{C 15 H 17 C l2 N 3} O 2, molecular weight 342.22, CAS NO. 60207-90-1, and the concentration is 100%. And the structural formula thereof is shown by the following structural formula 3.

(Formula 3)

The clove is one of the world's most popular fragrances and is most widely used as a fragrance remedy. It comes from cloves (Eugenia caryophyllata), the origin of Indonesia's Moluka Islands. Clove is an evergreen tree and pink flowers bloom, which is the raw material of cloves. Just before the flowers bloom, it is dried in the sun or in a fire. The dried buds are named as cloves because they resemble nails, and the English name clove is also derived from the clou in the French language. When flowers are grown, they require caution, but once the bud is opened, it is not worth the spice.

Clover has been one of the representative potions since ancient times. In the book of the third century Bhutan, the records of the cloaks appear, and when the court officials saw the emperor, they held it in their mouths to get rid of their bad breath, and called it the "Gyeryonghyang". In medieval Arabia, it was thought that eating it would prevent it from becoming frostbite and hunger. It was introduced in ancient Egypt in 176 AD, and a few hundred years later it is known throughout the Mediterranean Sea. In Europe, it was introduced in the 8th century, and the Portuguese, who had the advantage of the Moluccas, first dominated the cloaking trade. Because of this, Moluca was nicknamed the Spice Islands. The Dutch who received the Moluca Islands from Portugal in 1605 blocked the production of cloves from this island only to raise prices.

In 1770, the French governor of Mauritius stole the clove seeds from Moluca and cultivated it on a farm in East Africa. Today, Zanzibar and Pemba in Tanzania in East Africa supply around 90 percent of the world's climates. Like other commodity crops, cloves cause environmental problems called forest destruction. Natural forests are almost destroyed as climbing trees grow on these islands, and local residents spend 40 percent of their income on fuel due to lack of firewood.

Dried buds are sold as is or in powder form, used for desserts, beverages, meats, pickles, woo sauces and gravy. Cloves are not only good in fragrance, but also have the best anti-corruption and sterilizing power among our spices. Extracted volatile clove oils are widely used as medicines, antibacterial agents (especially for dentistry), microscope lens cleaners, repellents, toothpaste, toothpaste abrasives, soaps, perfumes, In Japan, it is used as a rust inhibitor for Japanese tea, especially as a potion of berries and soy sauce. It has been used so far as it has been used so far, but today it is being replaced by natural clove oil for health reasons.

Cloves have long been used as valuable medicines in Korea. Cloves are widely used in the form of pills, powders, and moon jelly. When the stomach is sick and the stomach is cold and sore, or when there is no diarrhea and appetite, hiccups, digestive disorders, knees and backs are sore and sore.

N-methylpyrrolidone (NMP) is used as the solvent, and the NMP is an organic compound having a five-membered ring structure including a lactam structure, and is a kind of polar solvent. Because of its high solubility, it is used as a solvent for various materials in the field of polymer chemistry. It is also used as a solvent or paint cleansing agent for surface treatment of various fibers, resins, and metal coating plastics.

The NMP is a colorless or slightly yellowish liquid which can be mixed with various solvents such as water, ethyl acetate, chloroform, benzene, lower alcohols and lower ketones, and belongs to a non-flotational polar solvent. The structural formula of the NMP is shown in the following structural formula 4, and the characteristics are shown in Table 3 below.

(Formula 4)

Characteristics of NMP IUPAC Name 1-methyl-2-pyrrolidone Alias NMP Molecular formula C ₅ H ₉ NO Molecular Weight 99.13 CAS registration number 872-50-4 shape Colorless or light yellow liquid density 1.028 g / cm < ³ > Relative vapor density 3.4 (air = 1) Melting point -24 ° C Boiling point 202 ° C

As the emulsifier, a nonionic surfactant is used, and polyoxyethylene pt-octylphenyl ether is mainly used. As the trade name, TX-100 and Np-40 (Nonidet P-40) can be used. The TX-100 is widely used in terms of excellent membrane solubilization ability and less protein denaturation. It can be removed by Bio-Beads SM-2 (Bio-Beads SM-2), used for reconstitution membrane preparation, and used as an elution solvent for hydrophobic column chromatography. The critical micelle concentration CMC of the TX-100 was 0.24 mM, the micelle association number was 140, and the micelle molecular weight was 9 × 10 ⁴ .

The structural formula of the polyoxyethylene pt-octylphenyl ether used as the emulsifier is shown in the following structural formula 5, and the commercial product names are shown in Table 4 below.

(Formula 5)

Commercial product name Market name n HLB Triton X-100 9, 10 13.5 Triton X-45 4, 5 10.4 Triton X-114 7, 8 12.4 Triton X-102 12, 13 14.6 Triton X-165 16 15.8 Triton X-305 30 17.3 Triton X-405 40 - Nonidet P-40 9 13.1

The antifoaming agent is used for suppressing foaming and can be added as needed, and a non-silicone type (trade name CA-5220L) can be used.

That is, the present invention is characterized by dissolving dinotefuran, IPBC and propiconazole, which are low toxic compounds having insecticidal and disinfecting performance, in NMP as a polar solvent and emulsifying the same with an emulsifier which is a nonionic surfactant , Which is completed by adding cloves and uses water as a diluent.

Hereinafter, the present invention will be described in detail through examples.

(Example)

<Termite Effectiveness Test>

The termites used in the test were Japanese termites (Reticulitermes speratus). The wood pieces used for the test were 20 (L) × 10 (R) × 10 (T) rectangular parallelepiped with a normal pine (Pinus densiflora) sapwood with 3 to 5 rings per 10 mm. The wood pieces were dried in a thermostat at a temperature of 60 ± 2 ° C for 24 hours.

The specimens were processed specimens treated with specimens of specified concentrations and untreated specimens without specimens. The treated specimens were treated with a brush at a specified concentration of a preservative (diluted 50 times with water (w / w)) at 110 ± 10 g / m2 on the surface and then allowed to stand at room temperature for 20 days or more. Were separately subjected to the following weathering operations, and the number of specimens was five for each treatment. The wood pieces were dried to constant weight in a thermostat at a temperature of 60 ± 2 ° C and measured to a weight of 0.01 g.

The breeding container used is a dental gypsum of 8 cm in diameter and 6 cm in height and made of dental plaster (softened for about 30 seconds by pouring 24 ml of water into 100 g of dental model gypsum powder) Ten to fifteen pieces were placed in a box with a lid (the lid had a small hole for ventilation) with a 2 cm thick wet surface (100 g of cotton wool poured 130 to 150 ml of water).

As a test method, a treated specimen or a non-treated specimen was placed one by one on the gypsum of the breeding container so that the straight surface of the specimen was up and down, and 200 laborers were placed. At this time, the termites must have been grown in the same house, so that the termite, which was grown in another house in the same container, did not enter together. The containers were allowed to stand in the dark at a temperature of 28 ± 2 ° C and kept in the dark. The termites were removed from the breeding container after 7 days of rearing, and the number of mites was measured. The test was repeated three times.

Table 5 below shows the formulation of the preservatives used in the termite effect test, and Table 6 is the test result table of the termite effect test.

Mixture of preservative used in the termite effect test (unit: g) division Dinotefuran IPBC Propiconazole solvent
(NMP) Emulsifier
(TX-100) water Defoamer
(Non-silicon system:
CA-220L) cloves
Extraction stock solution Example 1 5 3 2 14 19 57 0.1 2 Example 2 3 3 2 14 19 59 0.1 2

Termite survival division 1 time Episode 2 3rd time Example 1 0 0 0 Example 2 0 0 0 Comparative Example 1 (no treatment) 153 182 176

1 to 3 show photographs of the test results. Fig. 1 shows the test results of Example 1, Fig. 2 shows the test results of Example 2, Fig. 3 shows the results of the test of Comparative Example 1 and Figs. 1 to 3 show the results of the first, second, to be.

As can be seen from Table 6 and FIGS. 1 to 3, it can be seen that Examples 1 and 2 according to the present invention have an excellent termite control effect on the number of viable termites.

<Soil penetration test>

An appropriate amount representative of the quality of the drug was taken from the drug, and the drug was diluted with 50-fold dilution to prepare a liquid sample. As a laboratory test method, a sandy loam having passed through a 20 mesh mesh was dried at 60 ± 2 ℃ until the weight became constant. To 24.0 g of the untreated soil, 6.0 g of the sample to be tested was added, mixed well, and allowed to stand indoors for 3 weeks. The treated soil was allowed to stand in a thermostat at 40 ± 2 ° C for 4 hours.

As shown in Fig. 4, two glass cylinders having an inner diameter of about 5 cm and a length of about 10 cm were placed in a glass tube having an inner diameter of about 1.5 cm and a length of about 10 cm at a distance of about 2 cm from the bottom surface With a scale of 5 cm and every 5 mm). About 60 g of untreated soil adjusted to a moisture content of about 25% and 3 g of pine chips were placed on one side of the glass cylinder of the test vessel previously dried and sterilized. The central transparent part of the glass tube was filled with the open soil, and the glass cylinder was connected. In the glass cylinder with the untreated soil, 200 worker's termites and 20 ants were inserted. The test container was allowed to stand in a thermostatic chamber at a temperature of 28 ± 2 ° C and a humidity of 70% or more for 1 week. After 1 week, the progress of the termites in each test container was observed and the degree of open pit soil was determined according to the criteria in Table 7 below.

Criteria for Disclosed Soil Perforation Perforation Progress 0 No visible perforation in exposed soil One Perforation distance less than 1cm 2 Perforation distance less than 2cm 3 Less than 3cm perforation 4 Perforation distance less than 4cm 5 4cm or more perforation

The results of the test, that is, soil piercing length, are shown in Table 8 below. A photograph of the test container is shown in Fig.

Soil Perforation Length (Unit: mm) division 1 time Episode 2 3rd time Average Example 1 0 0 0 0 Example 2 0 0 0 0 No treatment 50 50 50 50

As can be seen from Table 8, it was confirmed that the termites did not penetrate the soil layer at all.

<Anti-rice effect>

An appropriate amount representative of the quality was taken from the drug (Examples 1 and 2), and the sample was prepared into a liquid phase having a concentration (w / w) diluted with 50-fold water.

Aspergillus niger, Penicillium funiculosum, Rhizopus nigricans, Aureobasidium pullulans and Tricoderma viride were used. In the incubator of the isolate, 50 ml of potato juice agar culture was placed in a 100 ml Erlenmeyer flask and autoclaved for 30 minutes.

The bacteria were inoculated on the culture medium and cultured for 2 weeks under the conditions of a temperature of 26 2 캜 and a relative humidity of 70-80%. The cultured chalks were 90-100 mm in diameter and 15 mm in height. The challe was poured and sterilized by pressurized sterilized 2% agar (no nutrient source). A plastic net of polypropylene as a pedestal was laid in the chalet to prevent the specimen from being directly clogged with agar. The wood piece was made of a pine wood as a wood material having a cross section of 20 × 3 mm and a length of 50 mm. The nutrient solution was immersed in potato juice for 3 minutes to supply nutrients to the nutrient supply. The nutrient supply was dried at about 60 ℃ and immediately used for the test.

The treated specimens were treated with the medicines of Example 1 and Example 2 shown in Table 5 and the untreated specimens were treated with only the solvent and two types Respectively. The treated specimens were poured into a 1-liter beaker with a well squeezed well, and the solution was poured onto the beaker. The solution was immersed for at least 1 cm above the top of the wood piece for 3 minutes. The weathering operation was carried out ten times by repeating the leaching and volatilization operations. The dried wood pieces were placed side by side for two days in parallel so that they did not adhere to each other. Six specimens were used in one item and three specimens were placed in one chalet.

In order to see the anti-glare effect, three test specimens treated in the chalet were arranged parallel to each other so that they did not come into contact with each other, and the test specimens were installed with 20 × 50 mm width face up. Inoculation of the microorganisms was carried out by spraying 2 ml of a single spore suspension on the surface of 3 test pieces in a chalet and incubating for 4 weeks at a temperature of 26 ± 2 ° C. and a relative humidity of 70 to 80%. Evaluation values were obtained based on the criteria shown in Table 9 below.

Development status of microbial cells to measure the antifungal activity Evaluation value Development status of cells 0 There is no development of mold on the specimen. One The development of fungi only appears on the side of the specimen. 2 Fungal growth appears on 1/3 or less of the top surface of the specimen. 3 More than one third of the top surface of the specimen develops mold.

The average evaluation value was obtained by the following equation.

a₁, a₂, a₃, a₄, a₅, a₆ : 개개 시험체의 평균치Average evaluation value (A) =

a ₁ , a ₂ , a ₃ , a ₄ , a ₅ , a ₆ : Average value of each specimen

Then, the sum (S) of the average evaluation value to be hit is obtained, and the damage value (D) is obtained by the following equation.

The sum of the average evaluation values (S) = A1 + A2 + A3 + A4 + A5

A1, A2, A3, A4, A5: Average value for each strain

Damage value (D) = S ₁ / S ₀ x 100

S ₀ : S of the untreated specimen

S ₁ : S at any concentration S

The results are shown in Table 10 below.

Results division
Average evaluation value by species S
D
A1 A2 A3 A4 A5 Example 1 0 0 0 0 0 0 0 Example 2 0 0 0 0 0 0 0 No treatment 3 3 0.5 3 3 12.5 Solvent Treatment 3 3 2.5 3 2.5 14

 Species: Wood preservation laboratory, National Forestry Academy

A1: Aspergillus niger

A2: Aureobasidium pullulans

A3: Penicillium funiculosum

A4: Tricoderma viride

A5: Rhizopus nigricans

As can be seen from the above Table 10, it was confirmed that the preservative of the present invention has 100% anti-scavenging activity against the surface contaminants A1 and A5 and the discoloring bacteria A2, A3 and A4.

As described above, the preservative of the present invention is not only excellent in controlling the termites, but also capable of being used for soil treatment, and has excellent anti-scarring effect.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary,

Claims (6)

A preservative for wood maintenance,
A preservative for termite-controlled emulsifiable wood maintenance, comprising dinotefuran, iodine propynylbutylcarbamate, propiconazole and cloves. The method of claim 1,
A preservative for termite control emulsifiable wood maintenance, further comprising a solvent and an emulsifier. 3. The method of claim 2,
A preservative for termite-controlled emulsifiable wood maintenance, further comprising an antifoaming agent and water. The method of claim 3, wherein
2-6 wt% dinotefuran, 0.5-5 wt% iodide propynylbutylcarbamate, 0.5-4 wt% propicosol, 1-3 wt% cloves, 8-15 wt% solvent, 10-20 wt% emulsifier %, Antifoaming agent 0.1 to 0.2% by weight, the rest of the termite control emulsifiable wood maintenance preservative, characterized in that the remainder is made of water. 3. The method of claim 2,
The solvent is N-methyl-2-pyrrolidone, the emulsifier is a preservative for termite control emulsifiable wood maintenance, characterized in that the nonionic surfactant. 6. The method according to any one of claims 1 to 5,
Wherein the wood preservative preserving agent is used for wood surface treatment or soil treatment.

Images