KR20100074444A - Composition of preservatives for wooden structural assets - Google Patents

Abstract

PURPOSE: A preservation composition for lumber is provided to prevent whitening phenomenon with saved time and cost. CONSTITUTION: A preservation composition for lumber contains 3-50 weight parts of alkaline salt of octaborate, 0.01-5 weight parts of surfactant, and 0-15 weight parts of flame resistant agent. The alkaline salt is selected from disodium octaborate, dipotassium octaborate, diammonium octaborate, calcium octaborate, magnesium octaborate, and hydrates thereof. The surfactant is selected from anionic surfactant, cationic surfactant, and nonionic surfactant.

Description

Preservatives for wood {COMPOSITION OF PRESERVATIVES FOR WOODEN STRUCTURAL ASSETS}

The present invention relates to a preservative for wood containing an alkali salt of octaborate as an active ingredient and a method for preserving wood using the same. According to the present invention, wood, in particular, wooden structures, including wooden cultural properties, are accompanied by white powder or whitening. It does not have the advantage that it can provide a flame retardant, anti-fog, antiseptic, and insect repellent effect.

Wood is a natural material widely used in the manufacture of construction, furniture, household appliances, etc., but due to the nature of the material has a disadvantage that is very susceptible to degradation by fire, microorganisms or various insects. In particular, in the case of wooden structures, most of them have reached the end of their life due to such fires or biodegradation. By treating the wood with flame retardant, antiseptic and insect repellent, the life and performance of various structures made of wood can be significantly improved. Is self-explanatory.

Korea has many wooden cultural and stone cultural assets, which is called the country of wooden and stone cultural assets. Among them, the number of wooden cultural assets is overwhelmingly large. Although many wooden cultural assets have been lost due to various wars and fires, many of them still remain, some of which have been designated as World Cultural Heritage by UNESCO.

In addition to the martial arts exhibition of Buseoksa (National Treasure No. 18) and Bongjeongsa's paradise (National Treasure No. 15), Korea's best wooden cultural assets, Daeungjeon of Sudeoksa Temple (1308, National Treasure No. 49) ), Buseoksa Temple (1377, National Treasure No. 19), Eunhaesa Geojoam Yeongsan Exhibition, Gangneung's Guest Gate, etc. The early buildings of Chosun include Muwisa's Paradise Exhibition, Gwanryongsa's Pharmacist's Exhibition, Janggoksa's Relative War, and Bongjeongsa's Daeungjeon ( Treasure No. 55), and in the middle of Joseon Dynasty there is Palgsangjeon (1624, National Treasure No. 55).

As can be seen from the existing Korean wooden cultural properties, if the proper preservation methods are taken, the life of the wood is confirmed to be over 1,000 years, but there are no preservation techniques for these excellent wooden cultural properties.

In particular, wooden cultural properties are made of wood, which is very vulnerable to fire, and has been a problem due to its weak resistance to mold, insects, and the like. Therefore, wooden cultural properties have a high risk of fire and biodegradation if they are not effectively flameproofed, protected, preservative, and insect repellent treated.

Recent examples include the fire of Sungnyemun Gate, Korea's national treasure in 2008, and Seojangdae in Suwon Hwaseong in 2006 (World Heritage and UNESCO-designated UNESCO World Heritage in 2006), Bongbongsa Daeungjeon (Treasure 163) in 1984, and Geumsansa Daejekjeon in 1986 (Treasure) No. 476) and other major cultural assets were lost in the fire, and the damage caused by biodegradation was also reduced. Daeheungsa Temple (type cultural property) in Haenam, Tongdosa Pharmacist Exhibition (type cultural property) in Yangsan, Gyeongnam, and Sunamsa Daeungjeon (type cultural property) in Suncheon, Jeonnam are known to be damaged by termites and wood corrosion. There is a strong need for preservatives that impart performance.

Wood, which has been used the most as a material of Korean wooden cultural properties including pine, is suitable as a building material because it has superior strength, flex resistance, and durability compared to other materials, but the wood is strong and the surface of the wood is coarse and cracked during drying. It is generated and susceptible to infringement, such as fusion, and has been decorated with monochromatic surfaces. Dancheong is painted with greenish green as a background color, and then various pigments such as Yangnok, Changdan, Guncheong, Samcheong, Lime Liquor, Yellow, Scarlet, True powder, Lower lobe, Polygon, Meat color, and Ink are painted on it. is average.

Unlike other countries, wooden cultural properties in Korea are often painted with the above-listed monochromatics. Therefore, unlike general wooden structures, white powder or whitening should not appear when treating preservatives that provide flame retardant, anti-fog, antiseptic, and insect repellent performance. For this reason, it is essential that the original monochromatic monochromatic colors are not significantly changed.

The term "white powder" refers to the case where the water-soluble inorganic salts, which were originally powders, are dissolved in water and treated with a brush or spray on a wooden structure, and the white salts appear again on the surface of the wooden structure as it is dried. In addition, the whitening phenomenon refers to a phenomenon in which the water-soluble inorganic salts react with the constituent pigment components of mono to become water-insoluble components and appear in white color on the surface of mono.

White powder is a physical phenomenon in which water-soluble inorganic salts, which were simply powders, are dissolved in water and are in a liquid state and then dried again as original powders. Whitening is a reaction with organic or inorganic pigments that form a monochromatic color with the components of the preservative. Chemical phenomena caused by, distinguished from white matter.

As a conventional general wood fire treatment agent, water-soluble inorganic salts such as phosphates such as ammonium phosphate and sodium phosphate or sulfates such as ammonium sulfate and sodium sulfate, borax or boric acid have been used. These water-soluble inorganic salts are relatively excellent in flame retardancy, but when applied to wooden cultural properties, these water-soluble inorganic salts cause powdery crystalline powder or pale white powder to form on the surface of the wood after drying, or cerebral green among mono colors. It reacts with calcium carbonate, which is the main component of the contained powder, for a long time to become insoluble salts such as calcium sulfate and calcium phosphate, causing whitening, which not only damages the appearance of monochromium but also reduces the flame resistance. .

In addition, conventionally used anti-fogging, antiseptic, and insect repellents are PF-based (phenol fluoride) agents such as sodium fluoride, known as water-soluble agents, arsenic compounds, mixtures of dichromate compounds and phenols such as dinitrocresol, and CCA-based compounds. Mixtures of chromium / copper / arsenic compounds known as drugs are known, and useful agents include pentachlorophenol and PCP-laurate, PCP-dihydroabiethylamine, trichlorophenol, and dinitro, known as PCP. Phenolic compounds such as olso cresol and tribromophenol, tin compounds such as tributyl tin oxide and tributyl tin fumarate, and naphthenic acid metal salts such as copper naphthenate and zinc naphthenate are known. Also known as insect repellents that have been used conventionally are dolplin, crowten, succinone, carbamate-based compounds, pyrethroid-based compounds and the like.

However, among these drugs, for example, PCP, Dallin, PF, Tin, CCA, etc. have a bad effect on the environment and are currently prohibited to use, and drugs such as copper, naphthenate, copper, etc. Due to the effect of metal ions, the color of the wood changes to blue after treatment, and the oil-soluble agent is extremely poor in solubility in water and cannot be used in the present invention treated in an aqueous solution.

In addition, the method of flame retardant, insect repellent, antiseptic treatment to the existing wooden structure is impregnated with a chemical agent having a flame retardant performance first, then dried, impregnated with a chemical agent having a insect repellent, antiseptic performance or, in contrast, insect repellent, antiseptic performance It has been prepared by first impregnating a drug having a drying and then by impregnating a drug having a flame retardant performance and drying. However, these methods require two or more impregnation processes and two or more drying processes, which not only consumes a lot of processing time and drying costs, but also may cause the leaching of the first treatment agent in the second treatment process.

In addition, it was difficult to obtain a sufficient impregnation amount of the first treated and dried drugs to block the pores in the wood second. Therefore, as an economical impregnation method, there is an urgent need for a method of preparing a one-component type of a drug having a flame retardant and an insect repellent and an antiseptic property in one-component form. However, in general, drugs having a flame retardant component are mostly inorganic salts as described above, and agents having an antiseptic and insect repellent component, on the contrary, are organic substances, and thus are incompatible with these drugs, making it difficult to manufacture them in one-part form, and thus they are not practical. There is a situation.

Therefore, one example of the present invention overcomes the disadvantages of the prior art described above, and does not involve white powder or whitening on various wooden structures including wood, especially wooden cultural assets, and can simultaneously impart flame retardant performance and anti-fog, antiseptic, and insect repellent effects. It is an object to provide a one-component wood preservative.

Another example of the present invention aims to provide a method for preserving a wooden structure using the one-component wood preservative as described above.

The present inventors have repeated various experiments in order to achieve the above object, and when using an aqueous alkali salt solution of octaborate, one-component type can be simultaneously provided with flame retardant, anti-fog, antiseptic, and insect repellent effect on wooden cultural properties, and more surprising. It was found that no white powder or whitening was observed on the surface of the wood after treatment, and the color difference of mono before and after treatment with the preservative was relatively small, thus completing the present invention.

In the present invention, the "monochrome color difference" before and after the treatment of the preservative is applied to the wooden test piece and then treated with the wood preservative to measure the color difference before and after the treatment with a color difference meter to determine the color difference before and after the preservative treatment. To compare. At this time, if the color difference is large, the excellent aesthetics of the original mono will result in a significant damage.

In addition, "defense performance" means mainly to suppress the surface contaminants of wood. The surface contaminants is in accordance with the type of surface contamination bar shown with different colors, as such surface contaminants Aspergillus seusok (Aspergillus: black), Rhizopus crispus in (Rhizopus: black), Fusarium genus (Fusarium: red, frequently), there may be mentioned microorganisms of: (Monili orange) glow Cloud Stadium in (Glocladium: green), in Trichoderma (Trichoderma:: green), Penny chamber ryumsok (Penicillium green), in monilriah. Surface contaminants of wood do not degrade cellulose, which is a component of the wood cell wall, but do not involve changes in the strength of wood, but contaminate the surface of wood, thereby significantly reducing the aesthetic value and commodity value of wood.

On the other hand, "preservative performance" refers to the effect of suppressing the fungi of wood. Wood fungi include brown fungi that degrade cellulose, white fungi that degrade lignin, and soft fungi that differ slightly from these. Unlike surface contaminants, these fungi accompany the strength of wood of any kind.

In the present invention, the term "wooden cultural property" refers to all other wooden buildings and wooden structures having a preservation value, as well as cultural properties designated as national treasures, treasures, and tangible cultural properties managed by the Cultural Property Protection Act.

One example of the present invention is 3 to 50 parts by weight, preferably 5 to 30 parts by weight of an alkali salt of octaborate; 0.01 to 5 parts by weight of surfactant, preferably 0.05 to 3 parts by weight; And flame retardant 0 to 15 parts by weight, preferably 0.01 to 15 parts by weight. The content ratio may be about 100 parts by weight of the total composition.

The alkali salt of the octaborate is a component that imparts flame retardant, anti-fog, antiseptic, and insect repellent performance, without particular limitation, disodium octaborate (Na ₂ B ₈ O ₁₃ ), dipotassium octaborate (K ₂ B ₈ O ₁₃ ), Diammonium octaborate [(NH ₄ ) ₂ B ₈ O ₁₃ ], calcium octaborate (Ca ₂ B ₈ O ₁₃ ), magnesium octaborate (Mg ₂ B ₈ O ₁₃ ) and hydrates thereof 1 One or more species can be used, and sodium octaborate (Na ₂ B ₈ O ₁₃ ) is preferable in view of solubility. If the content of the alkali salt of octaborate is too low, it is difficult to obtain desired flame retardant, anti-fog, antiseptic, and insect repellent performance. If the content of the octaborate is too high, it is difficult to produce a uniform and stable one-component type due to the limitation of solubility. In view of this point, the content of the alkali salt of octaborate should be contained in the above-described content range, so that it is possible to produce a uniform and stable one-component composition while exhibiting sufficient flame-proofing, anti-fogging, antiseptic, and insect-proofing performance.

The surfactant is to facilitate the penetration of the composition into the interior of the wood during the wood application of the preservative composition according to the present invention, using any of anionic surfactants, cationic surfactants and nonionic surfactants It is also possible to achieve the object of the present invention. For example, the anionic surfactant may be an alkali salt of alpha olefin sulfonic acid, an alkali salt of alkyl benzene sulfonic acid, an alkali salt of dialkyl sulfosuccinic acid, an alkali salt of alkyl phosphate, an alkali salt of aminophosphonic acid, and an alkyl naphthalene acid. It may be one or more selected from the group consisting of alkali salts and alkali salts of alkyl allyl ethers (wherein the alkali salts mean sodium salts, potassium salts and ammonium salts, etc.), and the cationic surfactant is dide 1 selected from the group consisting of sil dimethyl ammonium chloride, distearyl dimethyl benzyl ammonium chloride, fatty acid amine acetate of C12 to C18, fatty acid imidazolium mesosulfate of C12 to C18, fatty acid imidazolium quaternary compound of C12 to C18, and the like. It may be one or more species, and the nonionic surfactant is nonylphenol, sorbitan fatty acid (C1 2 to C18) esters, C12 to C18 fatty acid esters, C12 to C18 fatty acid ethers, and the like, or at least one selected from the group consisting of a mixture of one or more of ethylene oxide (0.1 to 30 molar times).

The amount of the surfactant contained in the preservative composition of the present invention is preferably 0.01 to 5 parts by weight, preferably 0.05 to 3 parts by weight based on 100 parts by weight of the total composition. When the content of the surfactant is lower than the above range, it is difficult to expect sufficient wood permeability, and when higher than the above range, the miscibility with other components is poor.

As can be seen in the examples below, the alkali salts and surfactants of the octaborate as a constituent of the present invention alone may sufficiently impart flame retardant, anti-fog, antiseptic, and insect repellent to the wooden structure of the present invention. Within the scope not departing from the intended scope of the present invention, the addition of an auxiliary agent having a flame retardant performance further reduces the remaining time, residual flame time, carbonization length and carbon screen area by synergistic effects between these components. The flame retardancy can be further increased during performance.

Therefore, in another example of the present invention, the wood preservative treatment composition may further include a flame retardant having a flame retardant.

As the flame retardant having the flame retardant performance, one or more selected from the group consisting of salts of phosphoric acid, salts of sulfuric acid, salts of halogen acids, salts of sulfamic acid, salts of boron, salts of phosphonic acid, and the like can be used. For example, the salt of phosphate may be ammonium monophosphate, ammonium diphosphate, ammonium triphosphate, sodium monophosphate, sodium diphosphate, sodium triphosphate, potassium monophosphate, potassium diphosphate, potassium triphosphate, guanidine phosphate, guanidine diphosphate , Condensation degree may be at least one selected from the group consisting of low-condensed ammonium polyphosphate, guanyl urea phosphate and amine salt of phosphoric acid having a degree of 2-200, the salt of sulfuric acid is ammonium sulfate, sodium sulfate, potassium sulfate and It may be one or more selected from the group consisting of amine salts of sulfuric acid, the salt of the halogen acid is selected from the group consisting of ammonium chloride, sodium chloride, potassium chloride, ammonium bromide, sodium bromide, potassium bromide and amine salt of halogen acid, etc. It may be one or more, the salt of the sulfamic acid is guanidine sulfamate, ammonium sulfamate, Wave sodium, sulfamic acid potassium and sulfamic may be at least one selected from the group consisting of amine salts of humic acid, the salt of the boron is boric acid, borax, boron oxide, potassium penta borate (KB ₅ O _7), potassium tetra At least one selected from the group consisting of borate (K ₂ B ₄ O ₇ ), sodium metaborate (NaBO ₂ ), ammonium penta borate [(NH ₄ ) ₂ B ₁₀ O ₁₆ · 8H ₂ O], and an amine salt of boric acid The salt of the phosphonic acid may be amino trimethylene phosphonic acid, 1-hydroxyethylene-1,1-di phosphonic acid, ethylene diamine tetramethylene phosphonic acid, hexamethylene diamine tetramethylene phosphonic acid, diethylene It may be one or more selected from the group consisting of triamine pentamethylene phosphonic acid and amine salt of phosphonic acid.

The flame retardant may be used alone or in a mixed form, the content of which may be 15 parts by weight or less, preferably 0.01 to 15 parts by weight, based on 100 parts by weight of the total composition. If the content of the flame retardant assistant is out of the above range, it is difficult to show white powder or whitening phenomenon to mono or to prepare a uniform one-component form.

The preservative composition according to the present invention may include a solvent in an amount such that the total weight is 100 parts by weight, and the solvent may be any solvent having physical properties capable of uniformly mixing the alkali salt of the octaborate and the surfactant. In addition, the aqueous solvent is preferably water, but is not limited thereto.

In addition, the preservative treatment composition according to the present invention is characterized by having powdery whitening, whitening, flame retardant, antiseptic, antiseptic, and / or insect repellent. That the antifungal performance refers to the effect of suppressing the wood surface contaminants, the composition of the present invention, for example, Aspergillus seusok (Aspergillus: black), Rhizopus crispus in (Rhizopus: black), Fusarium genus (Fusarium: red , frequently), the glow Cloud Stadium in (Glocladium: green), Trichoderma genus (Trichoderma: green), Penny chamber ryumsok (Penicillium: green), monilriah in (Monili: orange) with respect to one microbial species or more selected from the group consisting of such as It may have an inhibitory effect. The antiseptic performance refers to the effect of inhibiting the fungi of wood, the composition of the present invention, for example, brown fungi that degrade cellulose, white fungi that degrade lignin, and slightly different from these forms It may be one having an inhibitory effect on at least one selected from the group consisting of soft fungus.

In another example of the present invention, the above-described wood preservative treatment composition for wood may be applied to wood to simultaneously impart flame retardant, anti-corrosive, antiseptic, and / or insect repellent effect without causing white powder and / or whitening. A method of preserving wood is provided. Applicable wood of the preservative treatment composition for wood of the present invention is not particularly limited, for example, pine, cedar, fir, larch, larch, paulownia, chestnut, zelkova, beech, chestnut, maple, oak, oak, It may be one or more selected from the group consisting of Misong, White King and Red King. The wood is used a lot as a wooden structure, especially in the case of wooden cultural properties pine is used a lot. The method of applying the composition to wood is not particularly limited, and may be any conventional method, and may be, for example, spraying, coating, depressurizing, pressurizing, depressurizing / pressurizing, or brushing. .

For example, the method of using the wood preservative composition according to the present invention can be applied directly to the surface of the wood with a brush or sprayer in the case of the existing wooden cultural property, in this case, after first treating the wood preservative composition to the wood, Alternatively, it is also possible to apply the preservative agent composition of the present invention on the monochromatic monocoated and then the monochromatic painted. In addition, in the case of general wood, the preservative may be used semipermanently by penetrating deep into the wood by the decompression method, the pressurization method, or the decompression / pressurization method from the beginning.

In addition, the preservative treatment agent for wood of the present invention can not only impart flame retardant, anti-fog, antiseptic, and insect repellent effect to timbers such as various wooden structures including wooden cultural assets, but also cause white powder or whitening, and color on monochromatic. Changes are also relatively small. Furthermore, it is available as a one-component liquid, saving wood processing time and costs and is simple to use.

Hereinafter, the present invention will be described in more detail with reference to the following examples, but the technical scope of the present invention is not limited to these examples.

[ Example  One]

An aqueous solution having a weight ratio of boric acid and borax of 50:50 mixed to 18% by weight based on the solid content was prepared. The main component was disodium octaborate (Na ₂ B ₈ O ₁₃ ) as a result of evaporation of the aqueous solution, and some unreacted boric acid was present. 5 wt% ammonium bromide and 2.0 wt% sodium alpha-olefin sulfonate anionic surfactant were added to the aqueous solution to prepare a preservative solution 1.

The preservative solution 1 prepared above was sprayed three times with a simple sprayer on a lumber pine having a size of 19 cm, 29 cm, and 0.5 cm in thickness, and dried at room temperature. Specimen 1 was made by coating cerebrum green with the ground color on the dried lumberwood, and again applying the flesh color on it.

[ Example  2]

A mixture of boric acid and borax having a weight ratio of 40: 60 was prepared in an aqueous solution of 20% by weight as a solid. The main component was disodium octaborate (Na ₂ B ₈ O ₁₃ ) as a result of evaporation of the aqueous solution. 1.0 wt% of didecyl dimethyl ammonium chloride cationic surfactant was added to the aqueous solution to prepare Preservative Solution 2.

The preservative solution 2 was sprayed three times with a simple sprayer on the same size of lumberjack timber as in Example 1 and dried at room temperature. Specimen 2 was made by coating cerebrum green with the ground color on the dried lumber, and multi-purple on it.

[ Example  3]

A mixture of boric acid and borax having a weight ratio of 30:70 was prepared in an aqueous solution of 10% by weight as a solid. The main component was disodium octaborate (Na ₂ B ₈ O ₁₃ ) as a result of evaporation of the aqueous solution, and there was some unreacted borax. Preservative solution 3 was prepared by adding 10 wt% of the first acid guanidine as a solid to this aqueous solution and 1.5 wt% of a nonionic surfactant having 12 mol of ethylene oxide added to 1 mol of nonylphenol.

Brain green was painted with ground color on the lumber of wood of the same size as in Example 1, and was again coated with ultramarine blue. The preservative agent solution 3 was sprayed three times with a simple sprayer on the green pine wood coated with cerebral green and ultramarine blue, and dried at room temperature to prepare a specimen 3.

[ Example  4]

A commercially available polybo (Polybor, Na ₂ B ₈ O ₁₃ .4H ₂ O, trade name of US Borax Co., Ltd.) was dissolved in water to prepare an aqueous solution of 15% by weight as a solid. To this aqueous solution, 3% by weight and 5% by weight of ammonium diphosphate and ammonium pentaborate were added as solids, and 1.0% by weight of a nonionic surfactant having 20 moles of ethylene oxide added to 1 mole of sorbitan monooleate. Preservative solution 4 was made.

Brain green was painted with ground color on the lumber of the same size as in Example 1, and the ground color was again coated thereon and dried. The preservative agent solution 4 was sprayed three times with a simple sprayer on the green pine wood coated with cerebral green and flesh color, and dried at room temperature to prepare a specimen 4.

[ Example  5]

120 g of boric acid and 25 g of 85% phosphoric acid were added to 670 g of water, and 80% of 40% NaOH was added to the reaction. The main component was disodium octaborate (Na ₂ B ₈ O ₁₃ ) as a result of evaporation and concentration of the reaction solution. The solid content of this aqueous solution is 2% by weight to 3%, and 3% by weight of guanidine sulfamate is added as solid and 1.0% by weight of anionic surfactant, sodium dodecyl benzene sulfonate, is added. Treating agent solution 5 was made.

Brain green was painted with ground color on the lumber of wood of the same size as in Example 1, and was again dried with vermilion. The preservative agent solution 5 was sprayed twice with a simple sprayer on the green pine wood coated with cerebral green and vermilion, and dried at room temperature to prepare a test piece 5.

[ Example  6]

236 g of boric acid was added to 670 g of water, and 119 g of 28 wt% aqueous ammonia was added to react the reaction. The main component was diamonium octaborate [(NH ₄ ) ₂ B ₈ O ₁₃ ]. Solid content concentration of this aqueous solution was 8% by weight, and 5% by weight of ammonium sulfate as a solid content and 1.0% by weight of a nonionic surfactant having 15 moles of ethylene oxide added to 1 mole of lauryl alcohol were added to the preservative solution 6. made.

The same chopped timber as in Example 1 was put into a model TP110 pressure and pressure impregnator manufactured by Sancheon Enterprise Co., Ltd., and the pressure was reduced to -76 cmHg for 1 hour, and then a preservative solution 6 was injected into the impregnator. After the injection of the preservative solution 6, pressurized again at 3 kgf / cm ² for 1 hour to dry the meat wood impregnated with the preservative overnight at 60 ℃. Specimen 6 was prepared by coating cerebrum green with dried ground pine wood as ground color.

[ Example  7]

236 g of boric acid was added to 670 g of water, and 130 g of 40% KOH was added to the reaction. The main component was dipotassium octaborate (K ₂ B ₈ O ₁₃ ) as a result of evaporation of the concentrated solution, and a slight boric acid was present. The solid content of this aqueous solution was 6% by weight, and 1-hydroxyethylene-1,1-diphosphonic acid ammonium salt was added 10% by weight as solid, distearyl dimethyl benzyl ammonium bromide cation. 1.0 wt% of surfactant was added to make preservative solution 7.

After impregnating the preservative 7 in the same manner as in Example 6, dried green pinewood was coated with ceren green as the ground color, and then short and long coated specimens 7 were made.

[ Comparative example  One]

Test specimen 8 was prepared by coating cerebrum green with the ground color on the same size of red pine wood used in Example 1, which was not treated with a preservative.

[ Comparative example  2]

A 15% ammonium ammonium phosphate aqueous solution was sprayed three times with a simple atomizer to the same sized lumberwood used in Example 1, which was not treated with a preservative, and dried at room temperature. Specimen 9 was made by coating cerebrum green with the ground color on dried lumber.

[ Comparative example  3]

The green pine wood of the same size used in Example 1, which was not treated with a preservative, was painted with greenish green color in the background color, and then dried by applying multi-purple color thereon. Test specimen 10 was prepared by spraying an ammonium salt aqueous solution of 1-hydroxyethylene-1,1-diphosphonic acid having a solid content of 20% by weight on a green pine wood coated with cerebral green and multicolored purple with a simple sprayer.

[ Comparative example  4]

In the reduced-pressure, pressure-impregnated impregnator of Example 6, an impregnated aqueous solution of guanidine salt with 18 wt% solids concentration was impregnated with the same size used in Example 1, which was not treated with a preservative agent. Specimen 11 was made by repainting and scarlet on it.

[ Comparative example  5]

In the reduced-pressure, pressure-impregnated impregnator of Example 6 was dried by impregnating a 23% by weight aqueous solution of ammonium sulfate in the same size meat wood used in Example 1 that was not treated with a preservative. The treated specimens were coated with cerebral green and then limestone on them to make specimen 12.

[ Comparative example  6]

In a reduced pressure, pressurized impregnator of Example 6, 25 wt% aqueous ammonium bromide solution was impregnated to dry pine wood of the same size used in Example 1, which was not treated with the preservative in the same manner. The treated specimens were coated with cerebral green and then painted with blue-blue on them to make specimen 13.

Experimental Example  1: Flame retardant performance test

Flame retardant test was performed for each of three test specimens produced in the Examples and Comparative Examples. Flame Retardant Performance of Synthetic Resin Board and Plywood, Article 7 of "Standard of Flame Retardant Performance (KOFEIS 1001)" The average value was obtained after performing a flame retardant test according to "Measurement Standards and Methods". According to this method, the sample is heated for two minutes with the maker burner, and then the time from the removal of the flame of the burner to the state of burning up after the flame is burned up until the "flaming time", and the state of burning without raising the flame stops. The time is defined as "remaining time", the area carbonized in the test process is "carbon screen", and the carbonized length is "carbonization length". The criteria for passing KOFEIS 1001 are less than 10 seconds of residual flame time, less than 30 seconds of residual time, less than 20cm of carbonization distance and less than 50cm of carbon screen area.

Experimental Example  2: Discoloration resistance  exam

The discoloration resistance was measured by using a colorimeter to measure the values of L ^* , a ^* , b ^* of the test piece before and after treatment with the preservative, and the degree of change was obtained as ΔL ^* , Δa ^* , Δb ^* and ΔE ^* . L ^* is the brightness index, white is 100 and black is 0, and a ^* and b ^* are Chromacheckness index indicating hue and saturation.

ΔE ^* was calculated by the following equation.

Here, ΔL ^* , Δa ^* , and Δb ^* are amounts of change of L ^* , a ^* , b ^* before and after the treatment agent treatment.

For reference, the method of determining colorfastness, which is the degree of color difference, is shown in Table 1.

TABLE 1

Degree of color difference ΔE ^* A very small difference 0 to 0.5 shade of difference 0.5 to 1.5 A detectable difference 1.5 to 3.0 contrast 3.0 to 6.0 Extremely noticeable differences 6.0-12.0 Different color 12.0 or later

Experimental Example  3: Permeability  exam

After drying the test specimens prepared in Examples and Comparative Examples for 8 hours in an oven at 60 ℃, the surface of the test specimens were visually observed to investigate the occurrence of white powder, and the evaluation values were obtained according to Table 2 below.

TABLE 2

Evaluation Percent occurrence situation 0 There is no powdering at all. One A slight powdery appearance appears on the surface of the test specimen. 2 White powder is strongly generated on the surface of the specimen.

Experimental Example  4: Whitening resistance  exam

The specimens prepared in Examples and Comparative Examples were cut to a size of 5 cm in width and 15 cm in length, and tested for 120 hours according to the accelerated weather resistance test method of KS M-5000. Then, the surface of the specimen was visually observed and examined for whitening. Evaluation values were obtained according to Table 3 below.

[Table 3]

Evaluation Whitening outbreak situation 0 No whitening occurred on the test specimen. One Mild whitening occurs on the surface of the test specimen. 2 Whitening occurs strongly on the surface of the test specimen.

Experimental Example  5: anti-microbial effect test

After 4 weeks of testing with the fungus R. nigricans and A. pullulans according to the method of Forestry Preservation Laboratory Standard No. 2 (1997), the cell development status of each specimen was observed. Evaluation values were obtained according to Table 4 below.

[Table 4]

Evaluation Developmental Status of Cells 0 There is no mold development in the test body. One Mold development appears on the side of the test specimen. 2 The development of the fungus appears below the top third of the specimen. 3 Mold development appears on the top 1/3 of the specimen.

Experimental Example  6: antiseptic effect test

According to the test method defined in KS M-1701 wood preservative (1997), the test body was tested for 3 weeks using brown fungus T. palustris and white fungus T. versicolor . The average mass reduction rate of was obtained. In KS M-1701, the average mass reduction rate is less than 3%.

Experimental Example  7: Insect repellency test

Japanese termites ( Reticulitermes ) according to the method set forth in the Forest Conservation Laboratory Standard No. 10 (1997) After three weeks of testing using speratus and Coptotermes formosanus , the mortality rate and average mass reduction rate of the specimens were determined. In this case, the average mass reduction rate was less than 3%.

The test results The flame resistance test results are shown in Table 5, and the results of the discoloration resistance test, whitening resistance test, whitening resistance test, anti-fog effect, antiseptic effect and insect repellent effect test results are shown in Table 6.

[Table 5] Flame retardant test results

Afterglow time
(second) Remaining time
(second) Carbonization length
(cm) Ammunition
(cm ² ) Example 1 0 3 14 32 Example 2 0 One 16 35 Example 3 One One 13 38 Example 4 0 0 10 32 Example 5 One 5 17 43 Example 6 0 0 15 38 Example 7 0 0 15 35 Comparative Example 1 250 270 26 264 Comparative Example 2 4 6 18 35 Comparative Example 3 3 0 11 45 Comparative Example 4 0 0 12 48 Comparative Example 5 0 One 15 42 Comparative Example 6 One One 13 38

TABLE 6

Discoloration resistance Permeability Whitening resistance Anti-microbial effect Antiseptic effect
(%) Insect repellent Weight loss rate (%) Mortality rate (%) Example 1 0.9 0 0 0 2.9 1.5 100 Example 2 1.5 0 0 0 1.5 1.6 100 Example 3 0.6 0 0 0 1.6 1.1 100 Example 4 0.8 0 0 0 1.4 2.0 100 Example 5 1.6 0 0 0 2.8 1.7 100 Example 6 1.0 0 0 0 1.6 1.5 100 Example 7 1.3 0 0 0 2.0 1.8 100 Comparative Example 1 0.3 0 0 3 31 28 27 Comparative Example 2 8.5 2 2 3 25 21 37 Comparative Example 3 11.3 One One One 27 25 30 Comparative Example 4 7.6 2 2 3 23 19 31 Comparative Example 5 2.9 One 2 One 29 17 23 Comparative Example 6 2.3 One One 3 28 16 29

As can be seen from the experiments of the above examples and comparative examples, in the comparative examples not treated with the preservative composition of the present invention, there is some degree of flame retardancy, but only in the state of failing in the standard test in the taste, antiseptic, insect repellent, etc. Rather, white powder or whitening occurred on the surface of the mono. However, in the samples of Examples 1-7 treated with the preservative treatment agent of the present invention, all of the flame retardant, anti-corrosive, antiseptic, and insect repellents were not only passed in the standard test but also showed no white powder or whitening on the mono surface. It can be seen that the discoloration is also relatively low.

Claims (7)

3 to 50 parts by weight of an alkali salt of octaborate; 0.01 to 5 parts by weight of surfactant; And 0 to 15 parts by weight of a flame retardant. The method of claim 1, The alkali salts of the octaborate are disodium octaborate (Na ₂ B ₈ O ₁₃ ), dipotassium octaborate (K ₂ B ₈ O ₁₃ ), diazomium octaborate [(NH ₄ ) ₂ B ₈ O ₁₃ ], At least one selected from the group consisting of calcium octaborate (CaB ₈ O ₁₃ ), magnesium octaborate (MgB ₈ O ₁₃ ) and hydrates thereof Wood preservative composition. The method of claim 1, The surfactant is at least one selected from the group consisting of anionic surfactants, cationic surfactants, and nonionic surfactants. Wood preservative composition. The method of claim 3, The anionic surfactant is an alkali salt of alpha olefin sulfonic acid, an alkali salt of alkyl benzene sulfonic acid, an alkali salt of dialkyl sulfosuccinic acid, an alkali salt of alkyl phosphate, an alkali salt of aminophosphonic acid, an alkali salt of alkylnaphthalic acid And alkali salts of alkyl allyl ethers; The cationic surfactants include didecyl dimethyl ammonium chloride, distearyl dimethyl benzyl ammonium chloride, fatty acid amine acetate of C12 to C18, fatty acid imidazolium mesosulfate of C12 to C18, and fatty acid imidazolium quarter of C12 to C18. At least one selected from the group consisting of lily compounds, The nonionic surfactant is oxidized with at least one selected from the group consisting of nonylphenol, sorbitan fatty acid (C12 to C18) ester, C12 to C18 fatty acid ester, and C12 to C18 fatty acid ether. Mixture with ethylene Wood preservative composition. In the first, The flame retardant is at least one selected from the group consisting of salts of phosphoric acid, salts of sulfuric acid, salts of halogen acid, salts of sulfamic acid, salts of boric acid and salts of phosphonic acid, Wood preservative composition. The method of claim 5, The salts of phosphoric acid are ammonium monophosphate, ammonium diphosphate, ammonium triphosphate, sodium monophosphate, sodium diphosphate, sodium triphosphate, potassium monophosphate, potassium diphosphate, tertiary potassium phosphate, guanidine phosphate, guanidine dibasic, condensate At least one selected from the group consisting of low-condensed ammonium polyphosphates having a degree of 2 to 200, guanyl urea phosphate and amine salts of phosphoric acid, The salt of sulfuric acid is at least one selected from the group consisting of ammonium sulfate, sodium sulfate, potassium sulfate and amine salt of sulfuric acid, The salt of the halogen acid is at least one selected from the group consisting of ammonium chloride, sodium chloride, potassium chloride, ammonium bromide, sodium bromide, potassium bromide and amine salt of halogen acid, The salt of sulfamic acid is one or more selected from the group consisting of guanidine sulfamate, ammonium sulfamate, sodium sulfamate, potassium sulfamate and amine salts of sulfamic acid, The salt of boric acid is boric acid, borax, boron oxide, potassium pentaborate (KB ₅ O ₇ ), potassium tetra borate (K ₂ B ₄ O ₇ ), sodium metaborate (NaBO ₂ ), ammonium pentaborate [(NH ₄ ) ₂ B ₁₀ O ₁₆ · 8H ₂ O] and at least one member selected from the group consisting of amine salts of boric acid, The salt of the phosphonic acid is amino trimethylene phosphonic acid, 1-hydroxyethylene-1,1-diphosphoic acid, ethylene diamine tetramethylene phosphonic acid, hexamethylene diamine tetramethylene phosphonic acid, diethylene triamine pentamethylene At least one selected from the group consisting of phosphonic acid and amine salts of phosphonic acid, Wood preservative composition. A wood preservation treatment method according to any one of claims 1 to 6, wherein the wood preservative treatment composition is applied to wood.