CN104985653A - Method for processing wood through supercritical fluid - Google Patents
Method for processing wood through supercritical fluid Download PDFInfo
- Publication number
- CN104985653A CN104985653A CN201510350592.4A CN201510350592A CN104985653A CN 104985653 A CN104985653 A CN 104985653A CN 201510350592 A CN201510350592 A CN 201510350592A CN 104985653 A CN104985653 A CN 104985653A
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- Prior art keywords
- supercritical fluid
- timber
- treatment
- copper
- combination
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Classifications
-
- 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
- B27K3/086—Impregnating by pressure, e.g. vacuum impregnation using supercritical or high pressure fluids
-
- 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
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
-
- 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
- B27K2240/20—Removing fungi, molds or insects
-
- 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
- B27K2240/70—Hydrophobation treatment
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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)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a method for processing wood through supercritical fluid. The method includes the steps that wood base materials are provided and are in contact with a mixture comprising the supercritical fluid and at least one kind of wood preservatives, wherein the supercritical fluid comprises at least one kind of rare gas with the weight percent larger than 0.5% and smaller than 100%, and the contact process is executed under the pressure sufficient for keeping the supercritical fluid state of the supercritical fluid. By means of the processing method, corrosion resistant processing and waterproof processing can be carried out on the wood at the same time, the processing effect is improved, the processed wood base materials will have little warping and little degradation, the strength and the instant availability are improved, the use quality of the wood is improved accordingly, and meanwhile the technological cost for wood processing is reduced.
Description
Technical field
The invention belongs to Wood treatment method, particularly relate to a kind of method for the treatment of with supercritical fluid timber.
Background technology
Timber is made up of glucose, and glucose is the main carbohydrate for life supplies nutrients.Plant can pass through Polydextrose sugar unit (poly-(Isosorbide-5-Nitrae-β-glucose)) and usually produce timber to generate fiber.Timber is such as house, ship, building and furniture etc. are used as structural material in applying widely.Timber is made up of the sugar be polymerized, and be that potential food source also can by the live organism consumption producing cellulase, cellulase is the enzyme that can make the cellulosic Isosorbide-5-Nitrae of formation-β bond fission.Therefore, such as insect, bacterium and fungi etc. take cellulose as the structural intergrity that the organism eaten can destroy timber.
Anticorrisive agent is introduced in timber by frequent use solvent or liquid.The organic solvents such as such as carrene or freon (chlorofluorocarbons) are pass by for introducing in timber by anticorrisive agent, because they are non-flammable to a great extent.But although freon is nontoxic, it can exhaust ozone layer, has nowadays become forbidding material.Carrene has larger toxicity and environmental problem.Therefore, these solvents are progressively stopping using together with timber preservative.Newer technology uses the aqueous dispersions under high pressure to be introduced in wood structure by timber preservative.This is the most common anti-corrosion method of pressure treatment timber.But, together introduce evaporation of water in timber slowly with anticorrisive agent.Usually need to make timber bone dry, because the size of woodwork can change with the drying of wood after high pressure introduces anticorrisive agent.Sometimes firing is used to accelerate dry run; But this can consume the energy of huge amount, and significantly can increase carbon emission amount.
Carbon dioxide has also been used as the solvent introduced by anticorrisive agent in timber.Such as, United States Patent (USP) the 6th, 623, No. 600 describe the method utilizing supercritical carbon dioxide to use impregnation timber at high temperature under high pressure as solvent.But carbon dioxide is strong lewis acid, and can attack as nucleophiles such as amine, hydroxyl and mercaptan.These basic moieties are used in many timber preservatives, and hydroxyl is found in cellulose, makes these anticorrisive agents incompatible with carbon dioxide, and cause cellulose self easily to destroy.
Summary of the invention
Goal of the invention: the object of the invention is to solve deficiency of the prior art, there is provided one can carry out anticorrosion and water-proofing treatment to timber simultaneously, improve treatment effect, treated wood substrates will have less warpage, less degraded, the intensity of improvement and instant availability, thus improves the Wood treatment method of the using character of timber.
Technical scheme: the method for a kind for the treatment of with supercritical fluid timber of the present invention, described method comprises:
Wood substrates is provided, with make described wood substrates and comprise the mixture of supercritical fluid with at least one timber preservative and contact, wherein, described supercritical fluid comprises percentage by weight and is greater than 0.5%, is less than at least one rare gas of 100%, and wherein, described contact process is carried out under the pressure being enough to the Supercritical Conditions keeping described supercritical fluid; Described timber preservative is present in described mixture with 0.1 % by weight-30 % by weight, and described timber preservative permeates the surface of described wood substrates, and is dispersed in whole described wood substrates, and described timber preservative comprises multiple metallic particles; Described timber preservative comprises the metallic compound dissolved in liquid, arsenic compound or boron compound, and described timber preservative comprises iso thiazoline ketone compound.
Further, described pressure is 1500kPa-80000kPa.
Further, described rare gas is carbon dioxide, ethane, ethene, propane, propylene, neon, argon, krypton, xenon or its combination.
Further, described timber preservative is present in described mixture with 0.1 % by weight-20 % by weight.
Further, described metallic particles is copper particle, zinc particle or Argent grain, or its combination, and described metallic particles has the average diameter of 10nm-300nm.
Further, described metallic compound is chromated copper arenate, alkyl cuprammonium, copper azoles, Boratex, copper borate, Firebrake ZB, copper carbonate, zinc carbonate, lignin ferric sulfate or its combination.
Further, described timber preservative comprises shitosan-copper complex, shitosan-zinc complex, cupric dimethyldithio carbamate, monoethanolamine copper or its combination.
Further, described timber preservative comprises linseed oil, tung oil, sunflower oil, rapeseed oil, bankoul nut oil or its combination.
Further, described timber preservative comprises p-hydroxybenzoate, naphthalene, Tebuconazole, propiconazole, cyproconazole, silafluofene, capraldehyde, IPBC (IPBC), 2-(thiocyanomethylthio) benzothiazole (TCMTB) or its combination.
Beneficial effect: processing method of the present invention can carry out anticorrosion and water-proofing treatment to timber simultaneously, improve treatment effect, treated wood substrates will have less warpage, less degraded, the intensity of improvement and instant availability, thus improve the using character of timber, reduce the process costs for the treatment of of wood simultaneously.
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this description can understand other advantages of the present invention and effect easily.
Embodiment 1
A method for treatment with supercritical fluid timber, described method comprises:
Wood substrates is provided, with make described wood substrates and comprise the mixture of supercritical fluid with at least one timber preservative and contact, wherein, described supercritical fluid comprises at least one rare gas of percentage by weight 0.5%, and wherein, described contact process is carried out under the pressure being enough to the Supercritical Conditions keeping described supercritical fluid; Described timber preservative is present in described mixture with about 0.1 % by weight, and described timber preservative permeates the surface of described wood substrates, and is dispersed in whole described wood substrates, and described timber preservative comprises multiple metallic particles; Described timber preservative comprises the metallic compound dissolved in liquid, arsenic compound or boron compound, and described timber preservative comprises iso thiazoline ketone compound.
Wherein, described pressure is 1500kPa.Described rare gas is carbon dioxide, ethane, ethene, propane, propylene, neon, argon, krypton, xenon or its combination.Described timber preservative is present in described mixture with 0.1 % by weight.Described metallic particles is copper particle, zinc particle or Argent grain, or its combination, and described metallic particles has the average diameter of 10nm.Described metallic compound is chromated copper arenate, alkyl cuprammonium, copper azoles, Boratex, copper borate, Firebrake ZB, copper carbonate, zinc carbonate, lignin ferric sulfate or its combination.Described timber preservative comprises shitosan-copper complex, shitosan-zinc complex, cupric dimethyldithio carbamate, monoethanolamine copper or its combination.Described timber preservative comprises linseed oil, tung oil, sunflower oil, rapeseed oil, bankoul nut oil or its combination.Described timber preservative comprises p-hydroxybenzoate, naphthalene, Tebuconazole, propiconazole, cyproconazole, silafluofene, capraldehyde, IPBC (IPBC), 2-(thiocyanomethylthio) benzothiazole (TCMTB) or its combination.
Embodiment 2
A method for treatment with supercritical fluid timber, described method comprises:
Wood substrates is provided, with make described wood substrates and comprise the mixture of supercritical fluid with at least one timber preservative and contact, wherein, described supercritical fluid comprises at least one rare gas that percentage by weight is 50%, and wherein, described contact process is carried out under the pressure being enough to the Supercritical Conditions keeping described supercritical fluid; Described timber preservative is present in described mixture with about 20 % by weight, and described timber preservative permeates the surface of described wood substrates, and is dispersed in whole described wood substrates, and described timber preservative comprises multiple metallic particles; Described timber preservative comprises the metallic compound dissolved in liquid, arsenic compound or boron compound, and described timber preservative comprises iso thiazoline ketone compound.
Wherein, described pressure is 30000kPa.Described rare gas is carbon dioxide, ethane, ethene, propane, propylene, neon, argon, krypton, xenon or its combination.Described metallic particles is copper particle, zinc particle or Argent grain, or its combination, and described metallic particles has the average diameter of 150nm.Described metallic compound is chromated copper arenate, alkyl cuprammonium, copper azoles, Boratex, copper borate, Firebrake ZB, copper carbonate, zinc carbonate, lignin ferric sulfate or its combination.Described timber preservative comprises shitosan-copper complex, shitosan-zinc complex, cupric dimethyldithio carbamate, monoethanolamine copper or its combination.Described timber preservative comprises linseed oil, tung oil, sunflower oil, rapeseed oil, bankoul nut oil or its combination.Described timber preservative comprises p-hydroxybenzoate, naphthalene, Tebuconazole, propiconazole, cyproconazole, silafluofene, capraldehyde, IPBC (IPBC), 2-(thiocyanomethylthio) benzothiazole (TCMTB) or its combination.
Embodiment 3
A method for treatment with supercritical fluid timber, described method comprises:
Wood substrates is provided, with make described wood substrates and comprise the mixture of supercritical fluid with at least one timber preservative and contact, wherein, described supercritical fluid comprises at least one rare gas of percentage by weight 99%, and wherein, described contact process is carried out under the pressure being enough to the Supercritical Conditions keeping described supercritical fluid; Described timber preservative is present in described mixture with 30 % by weight, and described timber preservative permeates the surface of described wood substrates, and is dispersed in whole described wood substrates, and described timber preservative comprises multiple metallic particles; Described timber preservative comprises the metallic compound dissolved in liquid, arsenic compound or boron compound, and described timber preservative comprises iso thiazoline ketone compound.
Wherein, described pressure is 80000kPa.Described rare gas is carbon dioxide, ethane, ethene, propane, propylene, neon, argon, krypton, xenon or its combination.Described metallic particles is copper particle, zinc particle or Argent grain, or its combination, and described metallic particles has the average diameter of 300nm.Described metallic compound is chromated copper arenate, alkyl cuprammonium, copper azoles, Boratex, copper borate, Firebrake ZB, copper carbonate, zinc carbonate, lignin ferric sulfate or its combination.Described timber preservative comprises shitosan-copper complex, shitosan-zinc complex, cupric dimethyldithio carbamate, monoethanolamine copper or its combination.Described timber preservative comprises linseed oil, tung oil, sunflower oil, rapeseed oil, bankoul nut oil or its combination.Described timber preservative comprises p-hydroxybenzoate, naphthalene, Tebuconazole, propiconazole, cyproconazole, silafluofene, capraldehyde, IPBC (IPBC), 2-(thiocyanomethylthio) benzothiazole (TCMTB) or its combination.
Processing method of the present invention can carry out anticorrosion and water-proofing treatment to timber simultaneously, improve treatment effect, treated wood substrates will have less warpage, less degraded, the intensity of improvement and instant availability, thus improve the using character of timber, reduce the process costs for the treatment of of wood simultaneously.
Claims (9)
1. by a method for treatment with supercritical fluid timber, it is characterized in that: described method comprises:
Wood substrates is provided, with make described wood substrates and comprise the mixture of supercritical fluid with at least one timber preservative and contact, wherein, described supercritical fluid comprises percentage by weight and is greater than 0.5%, is less than at least one rare gas of 100%, and wherein, described contact process is carried out under the pressure being enough to the Supercritical Conditions keeping described supercritical fluid; Described timber preservative is present in described mixture with 0.1 % by weight-30 % by weight, and described timber preservative permeates the surface of described wood substrates, and is dispersed in whole described wood substrates, and described timber preservative comprises multiple metallic particles; Described timber preservative comprises the metallic compound dissolved in liquid, arsenic compound or boron compound, and described timber preservative comprises iso thiazoline ketone compound.
2. the method for a kind for the treatment of with supercritical fluid timber according to claim 1, is characterized in that: described pressure is 1500kPa-80000kPa.
3. the method for a kind for the treatment of with supercritical fluid timber according to claim 1, is characterized in that: described rare gas is carbon dioxide, ethane, ethene, propane, propylene, neon, argon, krypton, xenon or its combination.
4. the method for a kind for the treatment of with supercritical fluid timber according to claim 1, is characterized in that: described timber preservative is present in described mixture with 0.1 % by weight-20 % by weight.
5. the method for a kind for the treatment of with supercritical fluid timber according to claim 1, is characterized in that: described metallic particles is copper particle, zinc particle or Argent grain, or its combination, and described metallic particles has the average diameter of 10nm-300nm.
6. the method for a kind for the treatment of with supercritical fluid timber according to claim 1, is characterized in that: described metallic compound is chromated copper arenate, alkyl cuprammonium, copper azoles, Boratex, copper borate, Firebrake ZB, copper carbonate, zinc carbonate, lignin ferric sulfate or its combination.
7. the method for a kind for the treatment of with supercritical fluid timber according to claim 1, is characterized in that: described timber preservative comprises shitosan-copper complex, shitosan-zinc complex, cupric dimethyldithio carbamate, monoethanolamine copper or its combination.
8. the method for a kind for the treatment of with supercritical fluid timber according to claim 1, is characterized in that: described timber preservative comprises linseed oil, tung oil, sunflower oil, rapeseed oil, bankoul nut oil or its combination.
9. the method for a kind for the treatment of with supercritical fluid timber according to claim 1, is characterized in that: described timber preservative comprises p-hydroxybenzoate, naphthalene, Tebuconazole, propiconazole, cyproconazole, silafluofene, capraldehyde, IPBC (IPBC), 2-(thiocyanomethylthio) benzothiazole (TCMTB) or its combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510350592.4A CN104985653A (en) | 2015-06-24 | 2015-06-24 | Method for processing wood through supercritical fluid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510350592.4A CN104985653A (en) | 2015-06-24 | 2015-06-24 | Method for processing wood through supercritical fluid |
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| CN104985653A true CN104985653A (en) | 2015-10-21 |
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| CN201510350592.4A Pending CN104985653A (en) | 2015-06-24 | 2015-06-24 | Method for processing wood through supercritical fluid |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108748505A (en) * | 2018-06-26 | 2018-11-06 | 阜南县猛发工艺品有限公司 | A kind for the treatment of process improving timber stability |
| WO2018224490A1 (en) | 2017-06-08 | 2018-12-13 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Hydrophobic treatment of wood |
| CN109227834A (en) * | 2018-09-14 | 2019-01-18 | 广德竹之韵工艺品厂 | A kind of Southern Pine open air inscribed wooden slip culture wall preservative |
| CN111037687A (en) * | 2019-12-17 | 2020-04-21 | 安徽唯码数据科技有限公司 | Anti-corrosion treatment process for wood plate for home decoration |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998056991A1 (en) * | 1997-06-12 | 1998-12-17 | Windsor Technologies Limited | Method of making lignocellulosic board |
| JP2005246872A (en) * | 2004-03-05 | 2005-09-15 | Kobe Steel Ltd | Impregnating method of medicine |
| CN101554742A (en) * | 2008-04-10 | 2009-10-14 | 北京辉杰森木业科技有限公司 | Anticorrosive and waterproof integrated technique and wood treatment processing equipment of super-critical wood |
| CN103917344A (en) * | 2011-11-08 | 2014-07-09 | 英派尔科技开发有限公司 | Methods of treating wood with preservatives using supercritical noble gases |
-
2015
- 2015-06-24 CN CN201510350592.4A patent/CN104985653A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998056991A1 (en) * | 1997-06-12 | 1998-12-17 | Windsor Technologies Limited | Method of making lignocellulosic board |
| JP2005246872A (en) * | 2004-03-05 | 2005-09-15 | Kobe Steel Ltd | Impregnating method of medicine |
| CN101554742A (en) * | 2008-04-10 | 2009-10-14 | 北京辉杰森木业科技有限公司 | Anticorrosive and waterproof integrated technique and wood treatment processing equipment of super-critical wood |
| CN103917344A (en) * | 2011-11-08 | 2014-07-09 | 英派尔科技开发有限公司 | Methods of treating wood with preservatives using supercritical noble gases |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018224490A1 (en) | 2017-06-08 | 2018-12-13 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Hydrophobic treatment of wood |
| FR3067274A1 (en) * | 2017-06-08 | 2018-12-14 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | HYDROPHOBIC TREATMENT OF WOOD |
| CN108748505A (en) * | 2018-06-26 | 2018-11-06 | 阜南县猛发工艺品有限公司 | A kind for the treatment of process improving timber stability |
| CN109227834A (en) * | 2018-09-14 | 2019-01-18 | 广德竹之韵工艺品厂 | A kind of Southern Pine open air inscribed wooden slip culture wall preservative |
| CN111037687A (en) * | 2019-12-17 | 2020-04-21 | 安徽唯码数据科技有限公司 | Anti-corrosion treatment process for wood plate for home decoration |
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Application publication date: 20151021 |