WO2023145900A1 - Procédé de fabrication de matériau ligneux modifié, solution résinifiée de dérivé de furanne contenant un alcool polyvalent, et matériau ligneux modifié - Google Patents

Procédé de fabrication de matériau ligneux modifié, solution résinifiée de dérivé de furanne contenant un alcool polyvalent, et matériau ligneux modifié Download PDF

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Publication number
WO2023145900A1
WO2023145900A1 PCT/JP2023/002710 JP2023002710W WO2023145900A1 WO 2023145900 A1 WO2023145900 A1 WO 2023145900A1 JP 2023002710 W JP2023002710 W JP 2023002710W WO 2023145900 A1 WO2023145900 A1 WO 2023145900A1
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Prior art keywords
furan derivative
solution
polymerization
inorganic salt
furan
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PCT/JP2023/002710
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English (en)
Japanese (ja)
Inventor
貴文 伊藤
久士 宮藤
裕三 古田
圭輔 神代
彰亮 堀山
友加里 大塚
冨治雄 小原
宏樹 伊藤
佳子 山▲崎▼
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富士岡山運搬機株式会社
京都府公立大学法人
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Publication of WO2023145900A1 publication Critical patent/WO2023145900A1/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
    • 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
    • B27K3/15—Impregnating involving polymerisation including use of polymer-containing impregnating agents

Definitions

  • the present invention relates to a method for modifying woody materials, that is, a method for producing modified woody materials (modified woody materials).
  • the invention also relates to a solution for such a manufacturing method and to wood-based materials modified by treatment with said solution.
  • Wood materials include, for example, hardwoods and softwoods.
  • tropical broadleaf trees are generally hard and resistant to decay, so they are used not only for furniture but also for interior materials such as flooring and exterior materials such as wooden decks.
  • the purpose of the present invention is to modify wooden materials.
  • the present inventors have found that a furan derivative, a polyhydric alcohol, and an inorganic salt that promotes polymerization of the furan derivative are used as a solution for modifying woody materials.
  • the inventors have found that the desired properties can be imparted to the wood material by using the combined furan derivative-resinizing solution, and have completed the present invention.
  • the present invention provides a method for producing a modified wood material, comprising: 1) A step of impregnating a wood material with a furan derivative-resinizing solution containing a furan derivative typified by furfuryl alcohol, a polyhydric alcohol typified by polyethylene glycol, and an inorganic salt that promotes polymerization of the furan derivative; 2) A process is provided which comprises the step of polymerizing the furan derivative in the impregnated furan derivative resinizing solution in the woody material by heating.
  • the present invention also provides a furan derivative resinating solution, such as a furfuryl alcohol resinating solution, containing a polyhydric alcohol such as polyethylene glycol, which is preferably used in the above production method.
  • a furan derivative resinification solution for modifying woody materials comprising: Provided is a furan derivative-resinizing solution comprising a furan derivative typified by furfuryl alcohol, a polyhydric alcohol typified by polyethylene glycol, and an agent that promotes polymerization of the furan derivative typified by a specific inorganic salt. be.
  • the present invention also provides a modified woody material obtained by the above manufacturing method.
  • a woody material modified by the above production method the modified woody material comprising at least a polymerized furan derivative such as furfuryl alcohol and a polyhydric alcohol such as polyethylene glycol. is provided.
  • wooden materials can be modified.
  • the furan derivative resinating solution such as the furfuryl alcohol resinating solution, used for modification has at least a better anti-swelling ability (ASE) due to the modification of the wood-based material with the solution. and other characteristics can be imparted to the wooden material.
  • furan derivative resinating solutions such as furfuryl alcohol resinating solutions used for modification, can exhibit high yields when used in the process for producing modified wood-based materials.
  • Wood materials used as external structural materials such as wooden decks are required to have suitable durability and small dimensional changes due to fluctuations in moisture content (that is, high dimensional stability). Hardness is also required in terms of resistance to cracking and damage.
  • Patent Document 1 uses acetone or the like as an auxiliary solvent. It cannot be said that the furan derivative monomer solution containing such an auxiliary solvent can sufficiently suppress the polymerization of the furan derivative during storage at room temperature. If the furan derivative is polymerized and polymerized during the storage period, that is, before it is permeated into the wood material, it becomes difficult to permeate the wood material more uniformly. Therefore, it can be said that it is difficult to sufficiently penetrate a furan derivative into woody materials (for example, woody materials of domestic conifers such as Japanese cedar and Japanese cypress) with such a technique. Moreover, even if it is permeated, it is difficult to achieve a satisfactory modification of the wooden material.
  • woody materials for example, woody materials of domestic conifers such as Japanese cedar and Japanese cypress
  • the present disclosure solves the problem of the yield of the components used in the manufacturing method of the modified woody material and the problem of high dimensional stability required for exterior materials, for example, woody materials using furan derivatives and polyhydric alcohols. It has a history of trying to solve it by modifying it through resinification.
  • the present invention provides for the production of modified wood-based materials. That is, the present invention provides a method for producing a modified woody material as a method for modifying a woody material.
  • Such a production method of the present invention is A method for producing a modified wood material, comprising: 1) impregnating a woody material with a furan derivative-resinizing solution containing a furan derivative, a polyhydric alcohol, and an inorganic salt that promotes polymerization of the furan derivative; polymerizing in the woody material by heating.
  • the "furan derivative resinating solution” refers to a liquid that is mainly used for the process of adding resin to at least a portion of the wood material through the polymerization of the furan derivative.
  • the term “resinification” as used in this specification refers to a mode in which a woody material substantially contains a resin component formed by polymerization of a furan derivative in the solution.
  • the "furan derivative-resinizing solution” is also simply referred to as "solution”.
  • Normal temperature in the present disclosure refers to the temperature of the environment (eg, ambient temperature) where the temperature is not artificially changed by those skilled in the art, such as heating and cooling. It means a temperature of 30°C or 23-27°C.
  • heating in the present disclosure refers to a mode of artificially raising the temperature in order to favorably promote the polymerization of the furan derivative.
  • Temperature conditions of 105°C such as temperature conditions of 80-160°C such as 75-150°C, 75-130°C or 75-105°C, or temperature conditions such as 80-150°C, 80-130°C or 80-105°C It means heating the woody material or its surrounding environment infiltrated with the furan-derivative resinizing solution so that Although the term “temperature” in the present disclosure refers to the temperature of such wooden materials or their surrounding environment, it may simply or conveniently be the set temperature of the equipment used for manufacturing (e.g., heating/heating of the chamber). temperature set in the temperature means).
  • such heating may be continued for 2-240 hours, such as 4-168 hours, 10-96 hours, 10-80 hours, 10-48 hours.
  • such heating more favorably promotes polymerization of the furan derivative that has permeated the wood material, and also subjects the wood material wet with the furan derivative resinizing solution to drying.
  • the furan derivative-resinizing solution in the present disclosure contains a polyhydric alcohol.
  • the polyhydric alcohol in combination with the furan derivative, can increase the heating temperature for partially polymerizing the furan derivative in the method for producing a modified wood material, thereby increasing the yield of the ingredients used, and at the same time It contributes to imparting properties such as suppressing the occurrence of cracks/cracks and/or deformation/sinking and suppressing deterioration of dimensional stability (ASE).
  • the polyhydric alcohol in the present disclosure in combination with the furan derivative, raises the heating temperature for partially polymerizing the furan derivative in the method for producing the modified wood material, and the modified wood material is dimensionally stable.
  • cracks/fissures refer to cracks/fissures that occur in the modified wood material, such as cracks/cracks that occur during the polymerization of the furan derivative that has permeated the wood material by heating and/or the furan derivative. refers to cracks/cracks that occur after polymerizing by heating.
  • deformation/depression refers to deformation/deformation such as distortion, crushing and/or distortion that occurs in the modified wood material, for example, occurs during polymerization by heating of a furan derivative permeated in the wood material. Deformation/sinking such as distortion, crushing and/or distortion, and/or deformation/sinking such as distortion, crushing and/or distortion occurring after the furan derivative is polymerized by heating.
  • the "inorganic salt that promotes polymerization of a furan derivative” in the present disclosure acts to promote polymerization of a furan derivative, for example, when a woody material is resinified with heating. Therefore, in the following description, the "inorganic salt that accelerates the polymerization of the furan derivative” is sometimes simply referred to as the "promoter”.
  • the furan derivative-resinizing solution in the present disclosure can optionally contain an "inorganic substance containing an inorganic salt that inhibits the polymerization of the furan derivative" in addition to the "inorganic salt that promotes the polymerization of the furan derivative at room temperature.” . That is, if desired, the furan derivative-resinizing solution in the present disclosure may contain an "inorganic salt that promotes polymerization of the furan derivative at room temperature" and an "inorganic substance containing an inorganic salt that inhibits polymerization of the furan derivative.”
  • the furan derivative-resinizing solution in the present disclosure may optionally contain "an inorganic substance containing an inorganic salt that inhibits polymerization of the furan derivative at room temperature", depending on the type of furan derivative used.
  • the "inorganic substance containing an inorganic salt that inhibits the polymerization of the furan derivative at room temperature” contributes to the stabilization of the furan derivative-resinizing solution at room temperature. Therefore, in the following description of this specification, “inorganic substances containing inorganic salts that inhibit the polymerization of furan derivatives at room temperature” are sometimes referred to as "stabilizers".
  • the furan derivative-resinizing solution is made to contain an inorganic substance containing an inorganic salt that inhibits the polymerization of the furan derivative at room temperature, and the furan derivative-resinizing solution is By stabilizing furfuryl alcohol, modification treatment using it can contribute to improving the properties of the modified woody material. In addition, variations in the finish of the modified wood material can be reduced, and it becomes easier to standardize the quality of final products using the modified wood material.
  • the furan derivative-resinizing solution can be It may not be necessary to include "inorganic substances, including inorganic salts that inhibit polymerization of the derivative.”
  • woody material typically refers to so-called wood.
  • a “wood-based material” may be, for example, a wood raw material intended for use in wood products. That is, the wood material used in the production method of the present invention may be wood once processed or sawn from raw wood so as to have a predetermined shape.
  • furan derivative used in the production method of the present invention is not particularly limited. ⁇ 8, 1 to 6, 1 to 4, 1 to 3 or 1 to 2 hydrocarbon groups) may be directly bonded, that is, derivatives substituted with such hydrocarbon groups.
  • furan derivatives can include furans substituted with at least one functional group selected from the group consisting of alkyl groups, formyl groups, hydroxyl groups and hydroxyalkyl groups.
  • Each functional group of an alkyl group, a formyl group, a hydroxyl group and a hydroxyalkyl group may have 1 to 20 carbon atoms, such as 1 to 10, 1 to 8, 1 to 6, 1 to 4, 1 to 3, 1 ⁇ 2, or may be 1.
  • the number of functional groups to be substituted may be 1 to 4 per molecule of the furan derivative, for example, 1 to 3, 1 to 2, or 1.
  • the furan derivative used in the production method of the present invention may be, for example, at least one polymerizable monomer selected from the group consisting of furfuryl alcohol, furfural and 5-hydroxymethylfurfural (5-HMF).
  • furan derivatives may be commercially available.
  • furfuryl alcohol is commercially available from Fujifilm Wako Pure Chemical Industries, Ltd. under the trade name of "furfuryl alcohol”
  • 5-HMF is commercially available from Combi-Blocks under the trade name of "5- HMF” or the like may be used.
  • These polymerizable monomers are solutions in which a solvent (water is 100% by weight as the solvent in the solution) is used, and the stabilizers that may be included as desired effectively suppress polymerization at room temperature. After being permeated into the woody material, condensation polymerization is accelerated by the action of the accelerator under heating, and the woody material tends to be more preferably resinified.
  • the anti-swelling ability (ASE) of the modified wood tends to be higher.
  • the ASE can be 50% or greater, such as 50-95, or 50-90%.
  • the polyhydric alcohol used in the production method of the present invention is not particularly limited.
  • the polyhydric alcohol may be an alkylene glycol having 2 to 6 carbon atoms or a polyalkylene glycol obtained by polymerizing alkylene glycols having 2 to 6 carbon atoms.
  • the polyalkylene glycol may be a polymer obtained by polymerizing two or more alkylene glycols having 2 to 10 carbon atoms.
  • the polyhydric alcohol is ethylene glycol, propylene glycol, butylene glycol or glycerin, or their polymers diethylene glycol, dipropylene glycol or dibutylene glycol, triethylene glycol, tripropylene glycol or tributylene glycol.
  • polyethylene glycol polypropylene glycol, polybutylene glycol, polyglycerin, or the like, or a combination of two or more polyalkylene glycols.
  • the polyhydric alcohol may have a molecular weight of 100-10,000, such as 100-5000, 100-1000, 150-700 and/or 150-500 molecular weight.
  • polyhydric alcohols may be commercially available.
  • ethylene glycol is a product name such as "Ethylene Glycol" marketed by Mitsubishi Chemical Corporation
  • propylene glycol is a general industrial product marketed by AGC Corporation
  • butylene glycol is a company.
  • Glycerin is commercially available from NOF Corporation under the trade name of "1,3-BG", etc.
  • diethylene glycol is commercially available from Mitsubishi Chemical Corporation under the trade name of "diethylene glycol.”
  • dipropylene glycol is commercially available from ADEKA Corporation under the trade name of “dipropylene glycol”
  • dibutylene glycol is commercially available from KH Neochem Co. under the trade name of “1,3-butylene glycol-P”, etc.
  • Triethylene glycol is commercially available from Mitsubishi Chemical Co., Ltd.
  • triethylene glycol A series of PEG series commercially available from Kogyo Co., Ltd., such as "PEG-200” having a molecular weight of 200, and diol type 400 commercially available from Fuji Film Wako Pure Chemical Co., Ltd. may be used for polypropylene glycol.
  • the yield of the components used is increased by setting the initial set temperature to be higher in the method for producing the modified woody material, which will be described later.
  • the suppression of cracking/cracking and/or deformation/sinking of the modified wood material can be 40% or less of that of the unmodified wood material, for example, 30% or less, 20 % or less, 15% or less, or 10% or less, and so on.
  • the anti-swelling capacity (ASE) of the modified wood material can be 50% or more, such as 50-95% or 55-90%, which contributes to the reduction of dimensional stability. can.
  • the concentration of the furan derivative in the furan derivative-resinized solution used in the production method of the present invention may be generally 5 to 50% by weight (not including 50% by weight) based on the total amount of the furan derivative-resinized solution. 45% by weight, 10-45% by weight, 20-45% by weight, 20-40% by weight, or 25-35% by weight, and the like.
  • concentrations of furan derivatives may aid in the modification of more favorable wood-based materials. For example, by modifying the wood material using the solution, it is easy to impart at least one suitable property to the wood material, such as suppressing the occurrence of cracks/cracks and/or deformation/depression and suppressing the decrease in dimensional stability. Become. Also, it can exhibit a high yield in the manufacturing method of the modified woody material.
  • the concentration or amount of the polyhydric alcohol in the furan derivative-resinizing solution used in the production method of the present invention may generally be in a ratio of 0.01 to 1 mol per 1 mol of the furan derivative contained in the furan derivative-resinizing solution. , 0.01-0.5 mol or 0.03-0.3 mol, and the like.
  • Such polyhydric alcohols, in combination with the above furan derivatives can assist in the modification of suitable woody materials.
  • concentrations or amounts of polyhydric alcohol in the furan-derivatized resinating solution may aid in more suitable wood-based material modification. For example, by modifying the wood material using the solution, it becomes easier to suppress the decrease in the yield of the components used.
  • the furan derivative-resinizing solution used in the production method of the present invention contains an "inorganic salt that promotes polymerization of the furan derivative".
  • an inorganic salt that promotes polymerization of the furan derivative.
  • the "inorganic salt that promotes polymerization of the furan derivative” may be an inorganic salt that promotes polymerization of the furan derivative preferably by heating, particularly heating in step 2).
  • the term "promoting polymerization” as used herein means that the presence of such an inorganic salt increases the rate of the polymerization reaction compared to the absence of such an inorganic salt (for example, the presence of the polymerizable monomer alone).
  • Such an inorganic salt may be an inorganic salt exhibiting acidity, such as weak acidity, in an aqueous solution (for example, an aqueous solution at normal temperature). That is, it may be an inorganic salt that further lowers the pH.
  • such an inorganic salt may be neutral to weakly acidic as an aqueous solution at room temperature, typically pH 3-7 (not including "7"), such as pH 4-6.5 or pH 5-6. can be anything.
  • pH refers to the hydrogen ion exponent, and may be the pH value measured according to "JIS Z 8802 pH measurement method", for example.
  • the "inorganic salt that promotes the polymerization of the furan derivative” is an inorganic salt composed of anions of chloride ion and/or sulfate ion and cations of ammonium ion and/or magnesium ion and/or hydrogen ion. It's okay.
  • Such inorganic salts can help modify the wood material to be more suitable. For example, by modifying the wood material using the solution, even if it is subjected to polymerization at a higher temperature, it can suppress the occurrence of cracks/cracks and/or deformation/sinking and more preferably suppress the deterioration of dimensional stability. It becomes easier to impart one favorable property to the woody material.
  • the "inorganic salt that promotes polymerization of the furan derivative” is selected from the group consisting of either one of chloride ion and sulfate ion and ammonium ion, magnesium ion and hydrogen ion, or It may be an inorganic salt having a combination of two as constituents.
  • the "inorganic salt that promotes polymerization of the furan derivative” is at least one inorganic salt selected from the group consisting of magnesium chloride, ammonium chloride, ammonium sulfate, ammonium hydrogensulfate, magnesium sulfate, magnesium hydrogensulfate, and the like. good.
  • the concentration or amount of the "inorganic salt that promotes polymerization of the furan derivative" in the furan derivative-resinizing solution is 0.1 mol or less, 0.09 mol or less, 0.08 mol or less, or 0.07 mol per 1 mol of the furan derivative in the solution. 0.06 mol or less, 0.05 mol or less, 0.04 mol or less, 0.03 mol or less, 0.02 mol or less, and the like.
  • the lower limit in such a case may be a value greater than 0 mol.
  • the concentration or amount of the "inorganic salt that promotes polymerization of the furan derivative" contained in the furan derivative-resinizing solution is 0.001 to 0.1 mol per 1 mol of the furan derivative. 0.002-0.1 mol, 0.003-0.1 mol, 0.004-0.1 mol, 0.005-0.1 mol, 0.006-0.1 mol, 0.007-0.1 mol , 0.008-0.08 mol, 0.009-0.07 mol, and the like.
  • concentration or amount of the "inorganic salt that promotes polymerization of the furan derivative" can assist in more suitable modification of the woody material.
  • at least one property such as suppressing the occurrence of cracks/cracks and/or deformation/sinking and suppressing the decrease in dimensional stability even when polymerized at a higher temperature. It becomes easy to impart suitable properties to the wooden material.
  • the furan derivative-resinizing solution used in the production method of the present invention may contain "an inorganic substance containing an inorganic salt that inhibits polymerization of the furan derivative at room temperature".
  • an inorganic salt By adding such an inorganic salt to the furan derivative-resinizing solution, the furan derivative is stabilized in the solution at room temperature, for example.
  • the undesirable polymerization of the furan derivative e.g., turbidity, insolubilization and/or separation phenomena in solution, etc.
  • Inconvenient polymerization that can be grasped as is easily suppressed, and the furan derivative resin-forming solution can be used in a more suitable state during the modification treatment.
  • an "inorganic substance containing an inorganic salt that inhibits the polymerization of the furan derivative at room temperature” is more stable in quality of the solution before permeation into the wood material due to the inhibition of the undesirable polymerization of the furan derivative.
  • the variation in properties imparted to the wooden material by the treatment can be more preferably suppressed.
  • variations in at least one characteristic such as suppression of occurrence of cracks/cracks and/or deformation/sinking and suppression of deterioration in dimensional stability can be more preferably suppressed.
  • An inorganic substance containing an inorganic salt that inhibits polymerization of a furan derivative at room temperature may be, for example, ammonia or an inorganic carbonate. Additionally or alternatively, the "inorganic substance containing an inorganic salt that inhibits polymerization of the furan derivative at ambient temperature” may have the form of an ammonium salt, for example.
  • An inorganic substance containing an inorganic salt that inhibits polymerization of a furan derivative at room temperature may be an inorganic substance containing at least one inorganic salt selected from, for example, ammonia, ammonium carbonate, and ammonium hydrogen carbonate.
  • the "inorganic substance containing an inorganic salt that inhibits the polymerization of the furan derivative at room temperature” is, for example, selected from the group consisting of ammonia, ammonium carbonate, ammonium hydrogen carbonate, or ammonia, ammonium carbonate and ammonium hydrogen carbonate. It may be a combination of two or three.
  • the "inorganic substance containing an inorganic salt that inhibits polymerization of a furan derivative at normal temperature” may be an inorganic substance containing an inorganic salt that exhibits basicity in an aqueous solution (for example, an aqueous solution at normal temperature). It may be inorganic, including inorganic salts that render the solution basic or change the pH to a more basic side (ie, raise the pH more).
  • a salt such as sodium hydroxide and/or potassium hydroxide is added to a furan derivative-resinizing solution consisting of a furan derivative, an inorganic salt that promotes polymerization of the furan derivative exhibiting neutral to weak acidity at room temperature, and water.
  • the stability of the solution can be maintained by inhibiting the polymerization of the furan derivative by keeping the aqueous solution of the furan derivative resin basic. adversely inhibits the polymerization of That is, the desired polymerization during modification treatment of the woody material may be inhibited.
  • Inorganic substances that inhibit the polymerization of the furan derivative at room temperature but do not adversely inhibit the polymerization of the furan derivative after impregnating the woody material with the furan derivative-resinizing solution are limited to some extent.
  • Inorganic substances that are gasified and removed out of the reaction system may be used. Typical examples thereof include inorganic salts such as ammonium carbonate and/or ammonium hydrogencarbonate, and inorganic substances such as ammonia.
  • the inorganic substance containing the inorganic salt in the furan derivative-resinizing solution used in the production method of the present invention is preferably an inorganic substance containing an inorganic salt that is decomposed and gasified by heating.
  • the "inorganic substance containing an inorganic salt that inhibits the polymerization of the furan derivative at room temperature" contained in the furan derivative-resinizing solution is decomposed by heating after permeating the woody material with the furan derivative-resinizing solution (more specifically, may be an inorganic substance containing an inorganic salt that is decomposed and gasified by heating).
  • sodium hydroxide and potassium hydroxide are preferably excluded as inorganic salts in the furan derivative-resinizing solution used in the production method of the present invention.
  • the "inorganic substance containing an inorganic salt that inhibits the polymerization of the furan derivative at room temperature" contained in the furan derivative-resinizing solution is preferably an inorganic substance containing an inorganic salt other than sodium hydroxide and potassium hydroxide.
  • the content of these inorganic salts may be adjusted as appropriate. By adjusting the content, it becomes easier to control the degree of polymerization of the furan derivative brought about by heating after the furan derivative-resinizing solution is permeated into the wood material, and in turn, control the part of the wood material cell where the furan resin is generated. becomes easier. For example, by increasing the content of "inorganic substances containing inorganic salts that inhibit the polymerization of furan derivatives at room temperature" in the solution, it becomes easier to control the degree of polymerization of furan derivatives to a low level, and low-molecular-weight furan derivative resins are formed in the cell walls. is easier to generate.
  • these inorganic substances containing inorganic salts as stabilizers more preferably stabilize the state of the furan derivative-resinizing solution before permeating the wood by suppressing the polymerization of the furan derivative at room temperature. Therefore, a modification treatment using it can contribute to improving the properties of the modified woody material. In addition, variations in the finish of the modified wood material can be reduced, and it becomes easier to standardize the quality of final products using the modified wood material.
  • an inorganic substance containing an inorganic salt that inhibits the polymerization of a furan derivative at normal temperature or “an inorganic substance containing an inorganic salt that inhibits the polymerization of 5-HMF and/or its derivatives at normal temperature” may be referred to as a stabilizer. .
  • polymerization in solution in order to facilitate imparting desired properties to the wooden material, polymerization in solution may be appropriately considered.
  • the molecular weight and reactivity of the polymer (resin) generated in the initial polymerization of the furan derivative are controlled, and the polymerization of the furan derivative is suppressed in the furan derivative-resinizing solution at room temperature.
  • the polymerization reaction in the woody material may be favorably promoted by heating after permeation into the woody material.
  • the concentration of the "inorganic substance containing an inorganic salt that inhibits the polymerization of the furan derivative at room temperature" in the furan derivative-resinizing solution is 0.01 mol or less, 0.005 mol or less, or 0.004 mol or less per 1 mol of the furan derivative in the solution. It may be 0.003 mol or less, 0.002 mol or less, or 0.001 mol or less (the lower limit in this case may be a value greater than 0 mol).
  • the concentration or amount of the "inorganic substance containing an inorganic salt that inhibits polymerization of the furan derivative at room temperature” may be 0.0001 to 0.004 mol per 1 mol of the furan derivative in the solution. , such as 0.0003-0.003 mol, 0.0005-0.001 mol, 0.0006-0.001 mol, or 0.0007-0.0009 mol.
  • concentration or amount of the "inorganic substance containing an inorganic salt that inhibits the polymerization of the furan derivative at room temperature” can assist in more suitable modification of the woody material.
  • At least one property such as suppression of cracks/cracks and/or deformation/sinking and suppression of deterioration in dimensional stability is achieved while increasing the yield of the components used. is easily imparted to the woody material.
  • the furan derivative-resinizing solution used in the present invention may be water-based. That is, the furan derivative-resinizing solution used in the production method of the present invention may be a solution containing the above furan derivative, an inorganic salt that promotes polymerization of the furan derivative, and water as a solvent.
  • the solvent in the furan derivative resinizing solution may be an aqueous medium. This means that the solvent contained in the solution consists substantially only of water.
  • the phrase "the solvent in the furan derivative-resinizing solution is an aqueous medium" in the context of the present invention means that the solvent contained in the solution consists only of water.
  • the furan derivative-resinizing solution may contain only water as a solvent, and may not contain an organic solvent such as acetone.
  • the furan derivative resinating solution used in the present invention may be free of acetone and the like.
  • the solvent in the furan derivative-resinizing solution may be a single solvent consisting of only water, rather than a solvent consisting of a mixture.
  • the solvent of the furan derivative-resinizing solution used in the present invention does not contain an organic solvent. It can also be referred to as an aqueous medium).
  • the solvent of the furan derivative-resinizing solution is a water solvent composed only of water
  • the modification of the woody material can be performed more suitably, and the effect of the present invention can be more remarkable.
  • the furan derivative in the furan derivative-resinizing solution can reach the interior of the wood material more easily than when acetone or the like is included as a solvent.
  • aqueous solvent water used as an aqueous solvent is more polar and/or has a lower molecular weight than acetone, etc., and therefore an aqueous solvent of 100% water, such as acetone,
  • Aqueous solvents can be used to keep costs down when carrying out the production method of the present invention, and are relatively more advantageous in terms of safety and environmental protection than when organic solvents are used.
  • the type of water used as the water solvent (that is, the water solvent consisting only of water) is not particularly limited, and any water that is generally recognized as water can be used.
  • the water used as the water solvent may be at least one selected from the group consisting of tap water, purified water, ground water, river water, rain water, deionized water, distilled water, and the like.
  • the furan derivative-resinizing solution used in the present invention may contain a small amount of an organic solvent such as a monohydric alcohol to increase the solubility of the furan derivative.
  • the wood material to be used in the production method of the present invention includes at least one domestic softwood selected from the group consisting of cedar, cypress, pine, larch, Ezo spruce, Sakhalin fir, hemlock and fir.
  • Wood materials also include at least one foreign softwood selected from the group consisting of southern yellow pine, radiata pine, red pine, Chinese fir, Douglas fir, and the like.
  • wood materials hardwoods such as fast-growing but soft poplar and/or neem solid wood, as well as laminated wood, plywood, veneer, particleboard and/or fiberboard, etc. have been processed to some extent. It is also possible to use wood materials, lamina (sawn boards), veneers, wood chips, wood flour and/or wood fibers (pulp) that constitute them, and non-wood lignocellulose materials such as bamboo. be.
  • wood material modified by the production method of the present invention may be used for various indoor and/or outdoor products.
  • wood materials modified by the manufacturing method of the present invention may be used for furniture, flooring, wooden decks, exterior walls, louvers, truck bodies, musical instruments, interior materials, exterior materials, and the like.
  • the woody material is softwood.
  • softwoods may be, for example, cedar and/or cypress.
  • Japanese cedar and/or Japanese cypress may correspond to domestic coniferous trees, which will favorably contribute to the development of new uses for domestic coniferous trees and demand for added value.
  • the wood material to be modified i.e., wood material before modification or unmodified
  • the furan derivative-resinizing solution used in the production method of the present invention may suitably contain two kinds of salts as solute components other than the furan derivative.
  • the furan derivative-resinizing solution used in step 1) may optionally contain a combination of two kinds of salts: "a salt that inhibits the polymerization of the furan derivative at room temperature” and "a salt that promotes the polymerization of the furan derivative".
  • the furan derivative resinating solution used in the process of the present invention is a solution containing a combination of a first inorganic salt that can act as a "stabilizer” and a second inorganic salt that can act as a "promoter". obtain.
  • the stabilizer is an inorganic stabilizer that inhibits polymerization of the furan derivative at room temperature but decomposes upon heating in step 2) and/or heating (for example, heating at the “initial set temperature” described later). It may be inorganic, including salts (eg, inorganic salts that decompose and gasify).
  • a combination of a first inorganic salt (an inorganic substance containing an inorganic salt that inhibits polymerization of a furan derivative at room temperature) and a second inorganic salt (an inorganic salt that promotes polymerization of a furan derivative) is a furan derivative and an aqueous solvent (
  • a solution may be formed with a solvent containing only water as a solvent and no organic solvent.
  • the furan derivative-resinizing solution containing the combination of the first inorganic salt and the second inorganic salt and the simple substance solvent consisting of only water has the effect of modifying the woody material more effectively, as described above. can become prominent.
  • step 1) a treatment for permeating the woody material with the furan derivative-resinizing solution is performed.
  • the means as long as it contributes to penetration.
  • a chamber into which the wood-based material and the furan derivative resinating solution can be charged may be used.
  • step 1) the wood material is immersed in the furan derivative-resinizing solution, and/or a method of spraying or applying the furan derivative-resinizing solution to the wood material is used, and/or Techniques such as impregnation with the furan derivative resinizing solution under vacuum and/or pressure conditions may be used.
  • the desired penetration is easily achieved through treatments such as immersion, coating, and spraying.
  • the desired permeation can be achieved by adopting impregnation treatment under reduced pressure and/or pressure environment, that is, so-called reduced pressure/pressure impregnation method. easy.
  • step 1) may be performed under reduced pressure below atmospheric pressure.
  • reduced pressure conditions may depend on the shape and/or size of the wood material to be subjected to the modification treatment, but for example, in a temperature range of room temperature or lower, a reduced pressure of between less than atmospheric pressure and 10 hPa can be achieved. can be a condition. Under such reduced pressure conditions, the penetration of the solution into the wooden material can be more favorably assisted.
  • the modification treatment of the wooden material using the solution can increase the yield of the ingredients used while cracking/cracking. And/or it becomes easier to impart at least one suitable property to the wooden material, such as suppression of deformation/sinking and suppression of deterioration in dimensional stability.
  • the reduced pressure conditions are reduced pressure conditions such as 700 to 10 hPa, 500 to 10 hPa, 100 to 10 hPa, 75 to 10 hPa, 50 to 10 hPa, 40 to 10 hPa, or 40 to 20 hPa.
  • the time for which the wood material is subjected to the solution under vacuum conditions is typically 5 minutes to 16 hours, such as 30 minutes to 16 hours, 1 hour to 16 hours, 1 hour to 8 hours, 1 hour to 4 hours, or 1 hour to 1 hour. It may be from 1 hour to 3 hours.
  • atmospheric pressure conditions or pressurization conditions may be employed as appropriate.
  • pressure treatment may be performed after the pressure reduction treatment.
  • Atmospheric or higher ambient pressures may be employed in such processes.
  • pressure conditions such as 0.1-3 MPa or 0.3-2 MPa (eg, pressure in the chamber) may be employed.
  • the time for which the wood-based material is subjected under such conditions of pressure and pressure may typically be from 15 minutes to 72 hours, such as from 30 minutes to 36 hours, or from 1 hour to 12 hours.
  • heat treatment is performed as step 2) to polymerize the furan derivative that has permeated the woody material in the woody material.
  • the heating promotes the polymerization of the furan derivative of the furan derivative-resinizing solution in the wood material, and the wood material can be modified due to the resulting resin component.
  • the heating in step 2) is not particularly limited as long as it can raise the temperature of the wooden material permeated with the solution.
  • the heating in step 2) may be performed by increasing the temperature of the chamber (for example, the ambient temperature in the chamber) in which the wooden material is charged.
  • Such heating may be under temperature conditions such as 65-160°C, 65-150°C, 65-130°C, 75-160°C, 75-150°C, 75-130°C or 105-105°C. That is, step 2) according to the production method of the present invention may be performed under temperature conditions of 75 to 160°C. Under such heating conditions, more suitable modification of the wood material can be assisted. For example, the modification treatment of the wood material using the solution can increase the yield of the ingredients used and prevent cracks/cracks. And/or it becomes easier to impart at least one favorable characteristic such as suppression of deformation/sinking and more favorable dimensional stability to the wooden material.
  • the time the wood-based material is subjected to the heat treatment in step 2) may typically be 2-240 hours, such as 4-168 hours, 10-96 hours, 10-80 hours or 10-48 hours. Alternatively, it may be 4 to 48 hours, 4 to 30 hours, or 10 to 30 hours, or even 4 to 24 hours, 4 to 10 hours, or 4 to 8 hours. .
  • the heating in step 2) may be performed in an air atmosphere. However, it is not limited thereto, and heating at a relatively high temperature (for example, heating exceeding 90° C.) may be performed in an inert gas atmosphere such as water vapor and/or nitrogen gas.
  • the wooden material permeated with the solution may be dried.
  • the heating of step 2) may dry the wood-based material while polymerizing the furan derivative of the impregnated furan-derivative-resinizing solution in the wood material.
  • the temperature condition of the chamber charged with the wood material impregnated with the furan derivative resinizing solution is 65 to 160°C (for example, 65 to 150°C, 65 to 130°C and/or 65 to 105°C, 75°C to Heat treatment at 150 ° C., 75 to 130 ° C. and / or 75 to 105 ° C., 80 to 150 ° C. (for example, process temperature conditions such as 80 to 130 ° C.
  • 2 to 240 hours eg , 3 to 192 hours, 3 to 168 hours, 4 to 168 hours, 4 to 96 hours, 10 to 96 hours, 10 to 80 hours or 10 to 48 hours, or 4 to 48 hours, 4 to 30 hours or 10 to 30 hours, or 4 to 24 hours, 4 to 10 hours, or 4 to 8 hours, etc.
  • 2 to 240 hours eg , 3 to 192 hours, 3 to 168 hours, 4 to 168 hours, 4 to 96 hours, 10 to 96 hours, 10 to 80 hours or 10 to 48 hours, or 4 to 48 hours, 4 to 30 hours or 10 to 30 hours, or 4 to 24 hours, 4 to 10 hours, or 4 to 8 hours, etc.
  • wet wood material due to penetration of the solution may be dried.
  • the heating in step 2) Prior to this, the woody material may be subjected to a heating treatment under a heating temperature condition lower than the heating temperature.
  • the "woody material infiltrated with the solution” may be subjected to a certain "initial set temperature” condition.
  • the initial setting temperature it is possible to decompose at least a part of the stabilizer in the furan derivative resinizing solution while preventing the solution from evaporating as much as possible for the wood material infiltrated with the solution. It can help to modify the wood material to be more suitable.
  • the initial set temperature to a higher temperature and polymerizing the furan derivative, it is possible to increase the yield of the components used, while cracking and/or cracking in the modified woody material. It becomes easy to impart at least one suitable property such as suppression of deformation/sinking and suppression of decrease in dimensional stability to the wooden material.
  • the wood material impregnated with the solution may be heated in a furan derivative resinizing solution, for example, so that the impregnated solution does not evaporate as much as possible.
  • a treatment is performed to temporarily maintain a lower temperature (a temperature that will also be mentioned later) for a certain period of time. (It can also be said that the temperature changes stepwise with time).
  • the wood material impregnated with the solution is heated, for example, in a furan derivative resinizing solution, so that the impregnated solution does not evaporate as much as possible.
  • At least some or all of the optionally included stabilizers (ie, inorganics including inorganic salts that inhibit polymerization of the furan derivative at ambient temperature) in the furan derivative resinizing solution may be decomposed.
  • the initial set temperature may be lower than the temperature of heating in step 2).
  • the initial set temperature may be a lower temperature corresponding to 80% of the heating temperature in step 2) or a lower temperature (that is, the upper limit of the initial set temperature is a temperature corresponding to 80% of the heating temperature ), and the lower limit thereof may be, for example, a low temperature equivalent to 20% of the heating temperature in step 2).
  • T i 0.2 T ii to 0.6 T ii
  • T i 0.3 T ii to 0.6 T ii
  • T i 0.3 T ii to 0.5 T ii and so on.
  • the initial set temperature (eg, chamber temperature conditions set as the initial set temperature) may be 50 to 90°C, for example, 50 to 85°C, 50 to 80°C, 60 to 85°C, 70°C, ⁇ 80°C, 75-85°C, or 75-80°C, and the like.
  • the time for which the wood material is subjected to such initial set temperature treatment may typically be 1 to 120 hours, such as 4 to 72 hours, 6 to 60 hours, 10 to 60 hours, 20 to 60 hours. hours, 35-60 hours, or 40-60 hours, or the like.
  • the production method of the present invention is such that between step 1) and step 2), the woody material permeated with, for example, the furan derivative resinizing solution is heated to 60 to 100°C, It may further comprise once warming to 70-90°C, 70-85°C, 60-85°C or 60-80°C, or 65-75°C.
  • the manufacturing method in which a furan derivative-resinizing solution containing a furan derivative that is stable in solution, such as 5-HMF, is used as the furan derivative is defined as "solution-infiltrated woody material" at the above-mentioned “initial set temperature. ” does not have to be attached.
  • a furan derivative resinating solution such as a 5-HMF resinating solution
  • a furan derivative resinating solution such as a 5-HMF resinating solution that has permeated the wood material without being subjected to the “initial setting temperature” treatment is used. It may be subjected to the desired heating (ie the temperature of heating in step 2)).
  • Production using a furan derivative resinating solution may result in the desired modified woody material without being subjected to the "initial set temperature.”
  • a furan derivative resin-forming solution containing 5-HMF as a furan derivative a higher initial set temperature is applied in the manufacturing process to increase the yield of the components used, while cracking/cracking and/or Alternatively, it becomes easier to impart at least one suitable property such as suppression of occurrence of deformation/sinking and suppression of deterioration in dimensional stability.
  • step 2 after infiltrating the woody material with a 5-HMF resinification solution containing 5-HMF and/or its derivatives and inorganic salts that promote its polymerization, the desired heating of step 2) may be heated.
  • the solution according to the present invention is a furan derivative-resinizing solution suitable for use in the production method described above. That is, the solution of the present invention is a solution for modifying woody materials, A furan derivative resinizing solution comprising a furan derivative, a polyhydric alcohol, and an inorganic salt that promotes polymerization of the furan derivative.
  • the solution according to the present invention is a furan-derivative resinizing solution suitable for use in the method of manufacture described above. That is, the solution of the present invention is a solution for modifying woody materials, A furan derivative resinizing solution comprising a furan derivative, a polyhydric alcohol, and an inorganic salt that promotes polymerization of the furan derivative.
  • such solutions may suitably contain two salts as solute components other than furan derivatives, as described above. That is, the furan derivative-resinizing solution according to the present invention contains a combination of two kinds of inorganic substances: "an inorganic substance containing an inorganic salt that inhibits the polymerization of the furan derivative at room temperature” and "an inorganic salt that promotes the polymerization of the furan derivative”. good. Due to such a solution, it is a more suitable modification treatment liquid for woody materials.
  • the furan derivative in the furan derivative resinizing solution can be further stabilized, and the generation of cracks/cracks and/or deformation/sinking can be suppressed and dimensional stability can be achieved.
  • At least one suitable property can be imparted to the wood-based material, such as inhibition of loss of elasticity.
  • the concentration of the "inorganic substance containing an inorganic salt that inhibits the polymerization of the furan derivative at room temperature", which can optionally be included in the solution of the present invention is 0.0. 0001 to 0.004 mol.
  • the concentration of the "inorganic salt that promotes polymerization of the furan derivative” in the solution of the present invention may be 0.001 to 0.1 mol per 1 mol of the furan derivative in the solution.
  • the content or concentration of the "inorganic substance containing an inorganic salt that inhibits the polymerization of the furan derivative at room temperature” in the solution of the present invention is the content or concentration of the "inorganic salt that promotes the polymerization of the furan derivative.”
  • the molar amount of the "inorganic substance containing an inorganic salt that suppresses the polymerization of the furan derivative at room temperature” per 1 mol of the furan derivative in the solution is It may be less than the molar amount of the “inorganic salt that promotes polymerization of the furan derivative”.
  • the solution of the present invention is characterized at least in that it preferably has high stability. Therefore, even if it is stored for a relatively long period of time (for example, even if it takes time from solution preparation to solution use as expected in actual production etc.), undesirable polymerization of the furan derivative is suppressed.
  • the furan derivative resin-forming solution can be used in a more suitable state during the modification treatment.
  • the furan derivative-resinizing solution of the present invention becomes cloudy, insolubilizes and/or separates even after it has been prepared, preferably at room temperature for 7 days (more preferably at room temperature for 14 days). No (that is, the solution does not become turbid, insolubilized and / or separated at least immediately after the 7 days or 14 days have passed. For example, at least the solution does not become turbid, insolubilized and / or separated by visual observation can be determined).
  • a furan derivative resinification solution with relatively high stability is particularly beneficial in view of industrial or practical processing and manufacturing. This is because even when the modified wood material is mass-produced, it may be possible to more preferably suppress variations in properties of the obtained modified wood material. For example, it becomes easy to avoid such an inconvenient phenomenon that it is difficult to put the product on the market due to large variations in dimensional stability.
  • a modified woody material according to the present invention is a modified woody material obtained by the production method described above.
  • the modified woody material of the present invention is a woody material containing at least a polymerized furan derivative modified by the production method described above.
  • the modified woody material of the present invention is a woody material modified using a "furan derivative-resinizing solution containing a furan derivative, a polyhydric alcohol, and an inorganic salt that promotes polymerization of the furan derivative.”
  • a furan resin formed by polymerization of a furan derivative comprising at least a furan resin formed by polymerization of a furan derivative, and in certain preferred cases, the polyhydric alcohol used as a raw material, the inorganic salt (first inorganic salt and/or second inorganic salt) or Substances derived therefrom may be included.
  • the resin formed by polymerization is not necessarily limited to being in the category of polymers, and may at least partially include those in the category of oligomers.
  • the modified wood-based material of the present invention can exhibit the following physical properties and the like.
  • S t is the end area swelling rate (%) of the modified material when it is made to absorb moisture or water under constant conditions from a completely dry state
  • S c is a constant from a completely dry state under the same conditions as the modified wood.
  • Anti-swelling ability ASE serves as an index representing dimensional stability.
  • An ASE of 50% or more is preferable for practical use of the modified wood material, and an ASE of less than 50% is unsuitable or unsuitable for practical use.
  • "completely dry” / "completely dry” means that a modified material or a non-modified material is placed in a thermostatic chamber (manufactured by Yamato Scientific Co., Ltd., model: DN43) set at 105 ° C. It refers to the state of a material when there is no weight change. Also, the total dry weight is the weight of the material when the weight change has disappeared.
  • the modified woody material according to the present invention is used for floorings, decks (for example, wooden decks), exterior wall materials, louvers, furniture, truck bodies, wooden fences, guardrails, exterior materials and/or musical instruments. It may be a wood material.
  • the modified woody material of the present invention can have the above-mentioned suitable properties, it can be particularly suitably used as wood not only for indoor use but also for outdoor use. Therefore, it can be said that the present invention contributes to the provision of new uses and added value for conifers (for example, domestic conifers).
  • the furan derivative-resinizing solution described in the present invention contains a furan derivative, an inorganic substance containing an inorganic salt that inhibits polymerization of the furan derivative at room temperature, and an inorganic salt that promotes polymerization of the furan derivative.
  • a furan derivative for example, an inorganic substance containing an inorganic salt that inhibits polymerization of the furan derivative at room temperature
  • an inorganic salt that promotes polymerization of the furan derivative.
  • components that can be unavoidably or accidentally mixed during the preparation, storage and/or use of the solution for example, components that can be recognized as trace amounts or trace amounts by those skilled in the art, such as trace or extremely trace amounts of components) is acceptable.
  • a method for producing a modified wood material comprising: 1) a step of impregnating a woody material with a furan derivative-resinizing solution containing a furan derivative, a polyhydric alcohol, and an inorganic salt that promotes polymerization of the furan derivative; A manufacturing method comprising the step of polymerizing a furan derivative in a woody material.
  • Second aspect The production method according to the first aspect, wherein the solvent in the furan derivative-resinizing solution is an aqueous medium.
  • ⁇ Third aspect The production method according to the first aspect or second aspect, wherein the polyhydric alcohol is an alkylene glycol having 2 to 10 carbon atoms or a polyalkylene glycol obtained by polymerizing alkylene glycol having 2 to 10 carbon atoms.
  • - 4th aspect The manufacturing method of the said 3rd aspect whose alkylene glycol is ethylene glycol or propylene glycol.
  • - Fifth aspect The production method according to the third aspect, wherein the polyalkylene glycol is polyethylene glycol or polypropylene glycol.
  • the polyethylene glycol or polypropylene glycol is a polyethylene glycol or polypropylene glycol having a molecular weight of 100 to 10,000.
  • the molar ratio of the furan derivative and the polyhydric alcohol in the furan derivative-resinizing solution is 1:0.01 to 1:1. .
  • the inorganic salt that promotes polymerization of the furan derivative is an inorganic salt consisting of an anion of chloride ion and/or sulfate ion and a cation of ammonium ion, magnesium ion and/or hydrogen ion.
  • the manufacturing method according to any one of the aspects to the seventh aspect.
  • - Ninth aspect The production according to any one of the above first to eighth aspects, wherein the concentration of the inorganic salt that promotes polymerization of the furan derivative is 0.001 to 0.1 mol per 1 mol of the furan derivative.
  • the furan derivative is furfuryl alcohol
  • the furan derivative-resinizing solution further contains an inorganic substance containing an inorganic salt that inhibits polymerization of furfuryl alcohol at room temperature.
  • Eleventh aspect The production method according to the tenth aspect, wherein the inorganic substance containing an inorganic salt that inhibits the polymerization of furfuryl alcohol at room temperature is an inorganic salt that decomposes and gasifies when heated.
  • the inorganic substance containing an inorganic salt that suppresses the polymerization of furfuryl alcohol at room temperature is at least one selected from the group consisting of ammonium carbonate and ammonium hydrogen carbonate. Method of manufacture as described.
  • the concentration of the inorganic substance containing an inorganic salt that suppresses the polymerization of furfuryl alcohol at room temperature is 0.0001 to 0.004 mol with respect to 1 mol of furfuryl alcohol, according to the 10th aspect to the 12th aspect. 2. The manufacturing method according to any one of the above.
  • - Fourteenth aspect The production method according to any one of the above first to thirteenth aspects, wherein step 1) is performed under reduced pressure below atmospheric pressure.
  • - Fifteenth aspect The production method according to any one of the first to fourteenth aspects above, wherein the heating in step 2) is performed at 60 to 200°C.
  • - 16th aspect The manufacturing method according to any one of the first to 15th aspects above, wherein the woody material is a softwood material.
  • - 17th aspect The manufacturing method according to the 16th aspect, wherein the wooden material is cedar or cypress.
  • a furan-derivative resinification solution for modifying woody materials A furan derivative resinizing solution comprising a furan derivative, a polyhydric alcohol, and an inorganic salt that promotes polymerization of the furan derivative.
  • a furan derivative-resinized solution according to the 18th aspect wherein the solvent in the furan derivative-resinized solution is an aqueous medium.
  • Twentieth aspect A woody material modified by the production method according to any one of the first to seventeenth aspects, the modified woody material comprising at least a polymerized furan derivative.
  • Twenty-first aspect The above-mentioned twentieth aspect, wherein the wooden material is used for flooring, decking, exterior wall materials, louvers, furniture, truck bodies, wooden fences, guardrails, exterior structural members and/or musical instruments. modified wood material.
  • Table 1 shows the anti-swelling capacity (ASE) calculated for the resinified samples produced using the furan derivative resinating solution containing the furan derivative and the polyhydric alcohol.
  • the sapwood was removed from the solution and subjected to an initial set temperature of 80°C for 48 hours, followed by reaction at 105°C for 24 hours to prepare a resinified sample.
  • Table 4 shows the anti-swelling capacity (ASE) calculated for the resinified samples prepared with ethylene glycol.
  • the technology according to the present invention can be used for modifying wood materials.
  • modification of wood-based materials can make them more suitable for outdoor use. Therefore, the present invention can be suitably used not only for interior materials such as furniture and flooring, but also for exterior structural materials such as wooden decks, particularly for wooden materials used outdoors.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

L'invention concerne un procédé de fabrication de matériau ligneux modifié. Plus spécifiquement, l'invention concerne un procédé de fabrication de matériau ligneux modifié qui inclut : 1) une étape au cours de laquelle une solution résinifiée de dérivé de furanne qui comprend un dérivé de furanne, un alcool polyvalent et un sel inorganique accélérant la polymérisation du dérivé de furanne, imprègne un matériau ligneux ; et 2) une étape au cours de laquelle le dérivé de furanne de la solution résinifiée de dérivé de furanne ainsi imprégnée, est soumis par chauffage à une polymérisation dans le matériau ligneux.
PCT/JP2023/002710 2022-01-28 2023-01-27 Procédé de fabrication de matériau ligneux modifié, solution résinifiée de dérivé de furanne contenant un alcool polyvalent, et matériau ligneux modifié WO2023145900A1 (fr)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5839403A (ja) * 1981-09-02 1983-03-08 日本油脂株式会社 木材の寸法安定処理方法
JP2004512193A (ja) * 2000-10-12 2004-04-22 ウッド　ポリマー　テクノロジーズ　エーエスエー フランポリマー含浸木材、そのポリマーの製法およびその用途
US20050038182A1 (en) * 2000-12-01 2005-02-17 The University Of Melbourne Wood products and processes for the preparation thereof
JP2005533688A (ja) * 2002-07-26 2005-11-10 ウッド ポリマー テクノロジーズ エーエスエー フランポリマー含浸木材
US20100062276A1 (en) * 2006-06-21 2010-03-11 Transfurans Chemicals Method for modifying wood and wood thereby obtained
JP2010526693A (ja) * 2007-05-11 2010-08-05 ケボニー エーエスエー 含浸木材のマイクロ波硬化

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5839403A (ja) * 1981-09-02 1983-03-08 日本油脂株式会社 木材の寸法安定処理方法
JP2004512193A (ja) * 2000-10-12 2004-04-22 ウッド　ポリマー　テクノロジーズ　エーエスエー フランポリマー含浸木材、そのポリマーの製法およびその用途
US20050038182A1 (en) * 2000-12-01 2005-02-17 The University Of Melbourne Wood products and processes for the preparation thereof
JP2005533688A (ja) * 2002-07-26 2005-11-10 ウッド ポリマー テクノロジーズ エーエスエー フランポリマー含浸木材
US20100062276A1 (en) * 2006-06-21 2010-03-11 Transfurans Chemicals Method for modifying wood and wood thereby obtained
JP2010526693A (ja) * 2007-05-11 2010-08-05 ケボニー エーエスエー 含浸木材のマイクロ波硬化

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