WO2015182920A1 - Composition d'ignifugation soluble dans l'eau pour le bois et procédé de traitement d'ignifugation - Google Patents

Composition d'ignifugation soluble dans l'eau pour le bois et procédé de traitement d'ignifugation Download PDF

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Publication number
WO2015182920A1
WO2015182920A1 PCT/KR2015/005082 KR2015005082W WO2015182920A1 WO 2015182920 A1 WO2015182920 A1 WO 2015182920A1 KR 2015005082 W KR2015005082 W KR 2015005082W WO 2015182920 A1 WO2015182920 A1 WO 2015182920A1
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Prior art keywords
flame retardant
water
wood
flame
based paint
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PCT/KR2015/005082
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English (en)
Korean (ko)
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유수용
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유수용
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Priority to JP2016565182A priority Critical patent/JP6284657B2/ja
Publication of WO2015182920A1 publication Critical patent/WO2015182920A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02—Processes; Apparatus
    • B27K3/0228—Spraying apparatus, e.g. tunnels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/16—Inorganic impregnating agents
    • B27K3/166—Compounds of phosphorus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/34—Organic impregnating agents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K21/00—Fireproofing materials
    • C09K21/02—Inorganic materials
    • C09K21/04—Inorganic materials containing phosphorus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K2240/00—Purpose of the treatment
    • B27K2240/30—Fireproofing

Definitions

  • the present invention relates to a water-soluble flame retardant composition and a flame retardant treatment method for wood, and more specifically, it is easy to penetrate into the wood and suppresses flame propagation only by spraying or brushing the surface of the general wood and the water-treated wood with a spray or a brush. Also, it has good charcoal surface, afterglow time and afterglow time, and there is no harmful effect of whitening, peeling, and staining against water-based paint color, and it can be flameproofed at room temperature and normal pressure to provide long-term flame-retardant effect without using other supplements.
  • a water-soluble flame retardant composition and a flame retardant treatment method A water-soluble flame retardant composition and a flame retardant treatment method.
  • Flame retardant treatment methods vary depending on the type of treatment target, but vary greatly depending on the material of the treatment target.
  • wood is a natural material widely used in manufacturing construction, furniture, furniture, etc.
  • the nature of the material is very vulnerable to deterioration caused by fire, microorganisms or various insects.However, when water-based paint is applied to the surface of wood, the wood is protected. It makes the beauty of beauty, and does not damage various microorganisms and insects, and has the advantage of protecting from various winds and seas.
  • the chemical treatment method refers to the treatment of a flameproof object with a chemical agent having an excellent flame retardant effect, and these chemicals are called flame retardant compositions.
  • wood-based flame retardant compositions are mainly used for coating halogen-based flame retardants, phosphorus-based flame retardants, and inorganic flame retardants.
  • Existing flame retardant compositions provide flame retardancy by forming a flame retardant coating on the surface of wood. There is a problem that the absorption of the flame retardant composition in the coated object during formation, and the working time and the drying speed of the coating film is very slow, thereby reducing the work efficiency.
  • the water content is maintained at 13 ⁇ 15%.
  • the water content changes according to the climate and natural environment, and the water content of wood is relatively high in rainy weather or in areas where fog occurs frequently.
  • aqueous flame retardant is poor adhesion of the wood surface and penetration into the wood when the water content of the wood is high. In other words, it is an important factor that results in the deterioration of flameproof performance.
  • Spray method or surface coating method lining method for attaching metal or other non-combustible materials to wood surface with flame retardant composition or flame retardant paint on wooden surface, and impregnation method for penetrating the flame retardant composition into wood. It can be divided into three.
  • the pressure method in the impregnation method is much more effective because it penetrates the flameproof composition by using vacuum and pressure, so that the flameproof composition can penetrate the inside of the tree, but this method requires an autoclave. It can be applied only to processing, and wooden buildings or large timbers are difficult to process.
  • the impregnation method by the non-pressure method has no difference in effect from the coating method by spraying, and like the above pressure method, it can be applied only to the treatment of small woods. Spray or paint surface treatment is the most practical and economical.
  • 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 as conventional wood flame retardants.
  • These water-soluble inorganic salts have excellent flame retardant effect, but when applied to wooden buildings, these water-soluble inorganic salts cause powdery crystalline powder or pale white powder to form on the wooden surface after drying, or calcium carbonate in the water paint component. After reacting for a long time with the insoluble insoluble salts such as calcium sulfate or calcium phosphate to cause whitening phenomenon not only damage the appearance of the water paint, but also resulted in lowering the flame resistance.
  • a flame retardant used for impregnation of non-woven fabric, silk fabric, wood or paper in Reference 1 is a flame retardant used for impregnation of non-woven fabric, silk fabric, wood or paper in Reference 1, and in particular, unlike the flame retardant which has excellent fire resistance and uses oily raw materials, it is less harmful to the working environment and does not cause environmental pollution.
  • a water-soluble inorganic flame retardant is disclosed in which a flame retardant is impregnated into a nonwoven fabric or the like, whereby strength is increased and cold resistance, stability, water resistance and elasticity are expressed.
  • Improved flame retardants including guanylurea phosphate [(H 2 NC (NH) -NH-C (O) -NH 2 ) .H 3 PO 4 ] (GUP) and boric acid, are described in Ref. Materials and improved flame retardants are disclosed, including wood and composite wood products.
  • the flame retardant composition is composed of 85 to 99% by weight aqueous solution of magnesium ammonium phosphate, 0.1 to 5.0% by weight silane adhesive, 0.1 to 5.0% by weight boric acid, 0.1 to 10.0% by weight borax, and 0.1 to 10.0% by weight ammonium phosphate.
  • a water soluble flame retardant composition and a flame retardant treatment method are disclosed.
  • Reference 4 is composed of guanadine phosphate, formarin, penetration enhancer, wood preservative, anticorrosive, silane capping agent, distilled water, and has excellent flame retardant, antiseptic, and insect repellent effect. Disclosed is a flame retardant composition for preserving wooden cultural properties and a method of manufacturing the same.
  • flame retardant and flame retardant with excellent burn time and residing time are applied to wood such as wooden cultural property because there is no whitening, peeling, stain, or harmful for 13 kinds of monochromatic blue color.
  • a silicone-based wood mono flame retardant has been disclosed which can be suppressed as much as possible.
  • Reference 6 can be applied or sprayed on wood, rice straw, Hanji, clothing, etc. to suppress the propagation of the flame, and excellent in burnt surface, after-burning time, remaining time, and harmful to white, fall, stain, etc.
  • the present invention relates to an organic-inorganic binder flame retardant composition for room temperature curing, which can enhance flame retardancy on the surface and inside and outside of a porous structure and prevent degradation of the structure.
  • the reference 7 is a step of putting a wood in an aqueous solution of sodium silicate (Na 2 SiO 3 ) as a main agent under reduced pressure; Putting wood in an aqueous solution of sodium silicate and subjecting it to pressure; Drying the wood after the main medicine is finished; Adding a wood to an aqueous solution of any one of boric acid (H 3 BO 3 ), ammonium hydrogen phosphate ((NH 4 ) 2 HPO 4 ), and ammonium borate (NH 4 BO 3 ), which is a coagent; Putting wood into an aqueous solution of the auxiliary agent and subjecting it to pressure; Disclosed is a method of treating flame retardant wood, which imparts flame retardancy to wood as a process of drying after auxiliary pharmaceutical treatment.
  • boric acid H 3 BO 3
  • ammonium hydrogen phosphate (NH 4 ) 2 HPO 4 )
  • NH 4 BO 3 ammonium borate
  • the flame retardant treatment method of the wood has the advantage of maintaining the flame-retardant performance for a long time, but a method requiring a decompression condition, this also has a disadvantage that is possible only for small wood processing and the treatment process is complicated.
  • reference 8 discloses a flame retardant pigment coating method for blending a flame retardant and an acrylic resin by mixing a flame retardant with about 25% to 30% of the total weight of the acrylic resin and a pigment solvent.
  • a flame retardant cloth which is provided flame retardant according to a flame retardant processing method with a pretreatment liquid containing an egg and a flame retardant.
  • the existing method of flame retardant, insect repellent, and antiseptic treatment of wood structure impregnates the agent with flame retardant performance first and then impregnates the agent with the component with insect repellent and antiseptic performance. It has been treated by first impregnating and then drying and impregnating a drug having a flame retardant performance after drying.
  • the present invention is water-soluble for wood that can simultaneously provide flame retardant, antiseptic, and insect repellent effect without accompanying white powder or whitening by simply spray application at room temperature without decompression and pressure on the surface of general wood as well as water-based paint.
  • the invention is excellent in flame retardant composition having excellent carbonization area and flame retardation time and retardation time and water-based paint which is excellent in whitening, peeling, staining, and harmfulness so that it can be applied to the surface of wood treated with water-based paint.
  • the present invention for solving the above problems
  • a distance of at least 40 cm from the object to be treated should be avoided when the temperature is less than 10 ° C. and when the humidity is 70% or more.
  • the composition is characterized by forming a flame retardant composition containing 0.1 to 1.5 wt% of Si, 0.5 to 3.5 wt% of N and 0.8 to 2.5 wt% of P.
  • the flame retardant composition according to claim 1 is characterized in that it is naturally dried at room temperature for 24 to 48 hours after the flame retardant treatment according to claim 1 is sprayed and brushed without treatment of other auxiliary agents.
  • an alkyl or alkoxy group of a silicone compound is formed into a hydroxy functional silicone by a phosphorus compound, and an electrostatic bond between a functional silicone and a phosphorus compound has a functional group.
  • Formation of the resin can improve the surface treatment properties and dispersibility by combining with silicon having lower surface tension, and penetrate into the wood by spray application alone to give excellent flame resistance.
  • the transition to the surface occurs when heated by the fire source, and pyrolyzes at a higher temperature to form a SiO 2 protective layer, and phosphorus forms a char (carbon layer, hereinafter referred to as char). Therefore, by protecting the char formed of silicon, synergistic effect between each other prevents heat transfer and additional combustion from the fire source, and delays pyrolysis of wood so that excellent flame retardant performance can be expected.
  • the present invention can treat the flame retardant composition by a simple spray application only to the surface of the water-treated wood, in particular, easy to penetrate during treatment, there is no change in color of the water-based paint and whitening, stains, luster does not occur
  • the anti-flame, antiseptic, and insect repellent effect can be expected at the same time, which can shorten the working time and greatly reduce the manpower and cost, which can provide significant economic benefits.
  • the present invention provides a simple and rapid method of natural drying for 24 to 48 hours at room temperature without the treatment of other auxiliary drugs after the flame retardant treatment by the spray method (treatment of the flame retardant by the spray method on the surface coated with an aqueous paint) Compared to the existing work which rarely occurs, it is possible to expect the benefits and effects that can simultaneously reduce the working time and give economic effects.
  • the present invention can be expected to have the same effect as the case of the wood with the water-based paint, even when applied to the general wood without the water-based paint.
  • 1 is a flow chart schematically showing the process of the flame retardant treatment method according to the present invention.
  • Figure 2 is a carbonization layer (Char) formation photograph according to the present invention.
  • Figure 3 is a result of XRD analysis to confirm the crystal structure of the char formed on the wood test piece after the carbonization test by applying a silicon-phosphate flame retardant to the wood test piece.
  • Figure 4 is a surface energy picture of water-soluble flame retardant composition for wood.
  • Figure 5 is a wood energy composition surface energy photo.
  • Figure 6 is a pre- and post-treatment picture of the wood with the normal wood and water-based paint.
  • Figure 7 is a photograph showing an example of use of the present invention.
  • a flame retardant is formed as a reactant using various functional groups of silicon hydrate, a flame retardant silicone compound, and a flame retardant phosphorus compound, and when applied to an aqueous paint-treated wood surface, only the spray coating is applied to the interior of the wood.
  • It is a flame retardant treatment method applied by spray method using the water-soluble flame retardant composition for wood and the water-soluble flame retardant composition which is easy to penetrate, and can easily handle large wooden conditional building or wood, and hassle of working and working time. It is characterized by providing a flame retardant treatment method that can shorten.
  • Flame retardant process using the water-soluble flame retardant for wood is as follows.
  • a silicone having a functional group and a phosphorus-based Formation of the electrostatic bond of the compound provides a flame retardant composition of the white compound Hydroxy silicone and a flame retardant composition that forms a more stable carbonized film due to improved crosslinking performance with cellulose, hemicellulose and lignin.
  • the silicone-phosphorous flame retardant based on the structure of the silicone-phosphorous flame retardant exhibits both the performance of the organic phosphate flame retardant composition and the properties of the inorganic silicone flame retardant composition, and the organic phosphate flame retardant mechanism is characterized by thermal decomposition of the organic phosphate flame retardant composition.
  • the flame retardant composition containing phosphorus mainly reacts in the condensation phase. From pyrolysis of the substrate, phosphoric acid extracts water from the condensation phase and forms char.
  • the water produced by the reaction has an effect of diluting the oxidizing gas phase to assist the ignition, and in the case of the phosphoric acid and pyrophosphate produced at this time may act as a catalyst for promoting the dehydration reaction of the terminal alcohol group.
  • Figure 2 shows the result of XRD analysis to confirm the crystal structure of the char formed on the wood test specimen after carbonization test by applying a silicon-phosphate flame retardant to the wood test specimen, the synthesized silicon phosphate flame retardant is 2 ⁇ at 25 Peaks showing the shape of the amorphous structure are shown.
  • Table 1 shows the results of XRF analysis to apply the silicon-phosphate flame retardant to the wood test specimens and to confirm the composition of char formed in the wood test specimens after the carbonization test. As shown in Table 1, the ratio of P was the highest at 65.41%, and Si was 29.30%, K was 5.01%, and S was 0.28%. XRF analysis confirmed the presence of Si and P in the foamed char component.
  • the silicone compound can maximize the flame retardant effect due to the char formation of the phosphate, as shown in the combination of the hydroxyl group of the wood cellulose, and protect the wood by treating the water paint, beautiful appearance, various microorganisms, insects There is no damage, there is an advantage that can be protected from various wind and sea.
  • the flame retardant composition prepared above was flame-retarded at room temperature by spraying at room temperature when the temperature was less than 10 ° C. and when the humidity was 70% or higher.
  • the object to be treated for flame retardant wood coated with water-based paint
  • a spray pressure of 80 to 120 kg / cm 2 to remove impurities and to avoid flame retardant when the temperature is lower than 10 ° C. and when the humidity is higher than 70%.
  • the distance from the object to be treated is maintained at a distance of 40cm or more and the throughput is 0.35kg / m2 to apply the primary spray.
  • VOCs content was calculated by adding the concentrations of measured quantitative substances and unknown substances such as toluene.
  • a flame retardant composition was applied to both sides of the test piece (70mm ⁇ 150mm, 8 sheets), installed in a desiccator containing 300 ml of distilled water, and maintained at 23 ° C. for 24 hours to develop formaldehyde contained in distilled water. -1650PC, SHIMADZU).
  • the flame retardant composition was measured with a pH meter.
  • Flame-retardant composition was filled in the pycnometer and measured using the weight difference before and after.
  • test piece coated with the flameproof composition was dried for at least 7 days, and then installed in an accelerated weather resistance tester and tested under the following conditions.
  • Cycle repeat 25 times, 200 hours total
  • -Comparative color difference Measure the chromaticity before and after the test using color difference meter for test piece coated with flame retardant composition and blank test piece without flame retardant composition, and then apply color difference value and flame retardant composition of test piece coated with flame retardant composition.
  • the difference of the color difference value of the blank test piece which was not performed was made into less than 3.0 for each test piece, and the average by the water paint color was less than 1.5.
  • -Surface area Area of the carbonized part of the test piece (wood) after the test, 50cm2.
  • Test specimen coated with flameproof composition is installed in accelerated weathering tester and accelerated weathering test is performed under the following conditions.
  • a flame retardant test is carried out with the test piece which has undergone accelerated weathering test.
  • Cycle repeat 25 times, 200 hours total.
  • Test pieces coated with a flame retardant composition and blank test pieces without coating are installed in a constant temperature and humidity chamber and tested under the following conditions.
  • the color difference value was obtained by measuring the chromaticity before and after the test using the flame retardant composition and the blank specimen without the flame retardant composition.
  • the flame was calculated by applying flame at one end of the specimen for 30 seconds and measuring the time from when the flame passed the 25 mm marking to the 100 mm marking line.
  • test results it is judged that there are some effects of antiseptic and anti-corrosion.
  • the test piece itself is a flammable material, which is insufficient for the semi-combustible test but the performance of the flame-retardant material is sufficient. .
  • Example 1 The same flame retardant composition as in Example 1 was prepared according to the same flame retardant treatment method, and was tested in the same test method as in Example 1.
  • test result is as follows.
  • Example 1 The same flame retardant composition as in Example 1 was prepared according to the same flame retardant treatment method, and was tested in the same test method as in Example 1.
  • test result is as follows.
  • Example 1 The same flame retardant composition as in Example 1 was prepared according to the same flame retardant treatment method, and was tested in the same test method as in Example 1.
  • test result is as follows.
  • the flame retardant composition polymerized with silicon and phosphorus compound prepared as described above is shown in Table 22 below according to the flame retardant composition standard for wooden buildings.
  • the moisture content of wood buildings is maintained at 13 ⁇ 15%, and the moisture content changes according to the climate or natural environment, and the moisture content of wood is relatively high in rainy weather or in areas where fog occurs frequently. have.
  • the present invention compared the flame retardant performance during the flame retardant treatment according to the moisture content of the wood and the results can be seen that the temporary flame retardant performance of the moisture content of the wood is more than 70%.
  • the present invention can treat the flame retardant composition by applying a simple spray on the surface of the water-based paint, the color change of the water-based paint, whitening, stains, gloss does not occur and anti-flame, antiseptic, anti-insect effect at the same time It provides a water-soluble flame retardant composition for wood.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Fireproofing Substances (AREA)

Abstract

La présente invention concerne un procédé de traitement d'ignifugation pour une composition d'ignifugation soluble dans l'eau pour le bois. La composition d'ignifugation sur la surface du bois traité au moyen d'une peinture aqueuse s'infiltre dans le bois, pour ainsi éviter la propagation de flamme. La présente invention permet la préparation d'une composition d'ignifugation écologique ayant de bonnes zones de carbonisation, une bonne durée de persistance de flamme et une bonne durée d'incandescence résiduelle et n'ayant pas de nocivité de blanchiment, d'exfoliation ou de taches sur la couleur de la peinture aqueuse, et permet le traitement d'ignifugation uniquement par un revêtement par pulvérisation ou un revêtement à la brosse sans avoir à utiliser d'autres choses, à température ambiante et sous pression atmosphérique. La présente invention est caractérisée par la préparation d'une composition d'ignifugation soluble dans l'eau pour le bois par l'ajout de 60 g de phosphate d'ammonium à 300 g d'eau distillée (eau de base) suivi de 30 minutes d'agitation, l'ajout de 40 g d'urée suivi de 30 minutes d'agitation, l'ajout de 40 g d'acide phosphorique suivi d'une heure d'agitation, et l'ajout de 60 g d'hydrate de silicium suivi d'une heure d'agitation à 50°C ou moins, dans lequel la composition d'ignifugation soluble dans l'eau pour le bois évite le traitement d'ignifugation quand la température est inférieure à 10°C et l'humidité est de 70 % ou plus; une distance de 40 cm ou plus est maintenue au cours du revêtement par pulvérisation; la composition d'ignifugation soluble dans l'eau pour le bois est revêtue sous une pression de 80 à 120 kg/cm2, à un débit de 0,35 kg/m2 à tout moment, et avec séchage à température ambiante de 24 à 28 heures; et le traitement d'ignifugation est effectué deux fois de la même manière.
PCT/KR2015/005082 2014-05-28 2015-05-21 Composition d'ignifugation soluble dans l'eau pour le bois et procédé de traitement d'ignifugation WO2015182920A1 (fr)

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KR1020140064070A KR101438457B1 (ko) 2014-05-28 2014-05-28 목재용 수용성 방염조성물과 방염처리방법
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