CN115351863A - Strong-permeability high-activity wood anticorrosive material and preparation method thereof - Google Patents
Strong-permeability high-activity wood anticorrosive material and preparation method thereof Download PDFInfo
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- CN115351863A CN115351863A CN202211031310.0A CN202211031310A CN115351863A CN 115351863 A CN115351863 A CN 115351863A CN 202211031310 A CN202211031310 A CN 202211031310A CN 115351863 A CN115351863 A CN 115351863A
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- ionic liquid
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- wood
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- 239000002023 wood Substances 0.000 title claims abstract description 37
- 230000000694 effects Effects 0.000 title claims abstract description 30
- 239000000463 material Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims abstract description 63
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000002608 ionic liquid Substances 0.000 claims abstract description 30
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 claims abstract description 10
- MCTWTZJPVLRJOU-UHFFFAOYSA-N 1-methyl-1H-imidazole Chemical compound CN1C=CN=C1 MCTWTZJPVLRJOU-UHFFFAOYSA-N 0.000 claims abstract description 9
- RDHPKYGYEGBMSE-UHFFFAOYSA-N bromoethane Chemical compound CCBr RDHPKYGYEGBMSE-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003171 wood protecting agent Substances 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 235000011056 potassium acetate Nutrition 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims 2
- 239000002994 raw material Substances 0.000 abstract 1
- 230000021736 acetylation Effects 0.000 description 8
- 238000006640 acetylation reaction Methods 0.000 description 8
- 239000003755 preservative agent Substances 0.000 description 7
- 230000002335 preservative effect Effects 0.000 description 6
- 239000003153 chemical reaction reagent Substances 0.000 description 5
- 230000035699 permeability Effects 0.000 description 4
- 238000002791 soaking Methods 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 2
- 238000005536 corrosion prevention Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- ASLSLEAFSPLINE-UHFFFAOYSA-N 1-ethenyl-3-hexyl-2h-imidazole Chemical compound CCCCCCN1CN(C=C)C=C1 ASLSLEAFSPLINE-UHFFFAOYSA-N 0.000 description 1
- RVAIPUFCPWGQSW-UHFFFAOYSA-N CCCCCCCCN1CN(C=C)C=C1 Chemical compound CCCCCCCCN1CN(C=C)C=C1 RVAIPUFCPWGQSW-UHFFFAOYSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000002538 fungal effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 125000002883 imidazolyl group Chemical group 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical group O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009149 molecular binding Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
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
- B27K3/34—Organic impregnating agents
- B27K3/50—Mixtures of different organic impregnating agents
-
- 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
- B27K3/343—Heterocyclic 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
- 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
- B27K3/36—Aliphatic compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
- C07D233/56—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring carbon atoms
- C07D233/58—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring carbon atoms with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring nitrogen atoms
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
A strong-permeability high-activity wood anticorrosive material and a preparation method thereof are disclosed, wherein the raw material formula comprises the following components in parts by weight: 1-50 parts of acetic anhydride; 10-50 parts of imidazole type ionic liquid; 2-10 parts of bark penetrant; the preparation method of the imidazole ionic liquid comprises the following steps: reacting 1-methylimidazole with bromoethane at 55-65 ℃ for 10-14 hours, adding potassium acetate, reacting at 68-72 ℃ for 1.5-2.5 hours, and obtaining the imidazole type ionic liquid after the reaction is finished. The invention uses the bark penetrant, so that the strong-permeability high-activity wood preservative material prepared by the invention can be more easily permeated into the bark.
Description
Technical Field
The invention relates to the technical field of anticorrosive materials, in particular to a strong-permeability high-activity wood anticorrosive material and a preparation method thereof.
Background
Wood is a natural organic complex whose constituents are nutrients for microorganisms. Under certain conditions, wood is easy to decay and degrade, and various wood preservatives have been applied to prolong the service life of the wood, and the conventional preservative components are effective in preventing the decay of the wood, but the toxicity of the conventional preservative can cause environmental pollution and harm people and livestock. Therefore, the research of non-toxic preservative treatment has been increasingly gaining attention. After wood is acetylated, the components of the wood are changed structurally, hydroxyl groups of holocellulose and lignin are replaced by acetyl groups, the treatment can eliminate the activity of fungal enzyme, inhibit the biodegradation reaction of the wood and play a good role in corrosion prevention, so that the wood acetylation treatment is widely applied to the wood corrosion prevention process.
At present, wood acetylation is mostly carried out by adopting a soaking method, namely, wood is directly soaked in an acetyl anhydride solution for treatment, but the existing acetyl preservative solvent has certain defects of poor permeability, the preservative solvent can enter the deep part of the wood only by soaking for a long time during soaking, sometimes the central part of the wood can not permeate, the preservative treatment effect of the wood is influenced under the condition, but if the soaking time is too long, the activity of the wood is possibly influenced. In addition, the conventional acetylation treatment needs supercritical toluene and other catalysts, and the cost is high, so that a low-cost, strong-permeability and high-activity wood preservative material needs to be developed to solve the technical problems.
The invention patent with publication number CN111823344A discloses a strong-permeation high-activity wood anticorrosive material, which comprises the following components in parts by weight: 80-120 parts of an acetylation reagent; 10-20 parts of ionic liquid; 2-3 parts of a compatilizer; the acetylation reagent is acetic anhydride or vinyl acetate, the ionic liquid is pyridine type ionic liquid or imidazole type ionic liquid, and the compatilizer is maleic anhydride grafting compatilizer. This strong high activity timber anticorrosive material that permeates includes acetylation reagent and ionic liquid, and ionic liquid has swelling, dissolves wood fiber and esterification catalysis characteristic, can make timber more active like this, just so can make the infiltration of acetylation reagent easier to the depths of timber, strengthens the permeability of acetylation reagent, can make the timber that carries out antiseptic treatment more active simultaneously, can effectively improve ligneous antiseptic treatment effect. The ionic liquid used in the invention is 1-hexyl-3-vinyl imidazole type ionic liquid or 1-octyl-3-vinyl imidazole type ionic liquid, and the molecular binding force with wood is weak due to the large molecular weight.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a strong-permeability high-activity wood anticorrosive material and a preparation method thereof.
The technical scheme provided by the invention is as follows: a strong-permeability high-activity wood anticorrosive material comprises the following components in parts by weight:
1-50 parts of acetic anhydride;
10-50 parts of imidazole type ionic liquid;
2-10 parts of bark penetrant;
the preparation method of the imidazole ionic liquid comprises the following steps: reacting 1-methylimidazole with bromoethane at 55-65 ℃ for 10-14 hours, adding potassium acetate, reacting at 68-72 ℃ for 1.5-2.5 hours, and obtaining the imidazole type ionic liquid after the reaction is finished.
The preferred technical scheme is that the molar ratio of 1-methylimidazole to bromoethane is 1:0.8-1.2.
The technical scheme provided by the invention is as follows: the preparation method of the wood preservative material with strong permeability and high activity as claimed in claim 1 or 2 comprises the steps of uniformly mixing imidazole type ionic liquid and acetic anhydride, adding bark penetrant, and uniformly mixing to obtain the wood preservative material with strong permeability and high activity.
The technical scheme has the following beneficial effects:
1. the invention uses the bark penetrant, so that the strong-permeability high-activity wood preservative material prepared by the invention can easily permeate into the bark.
2. The imidazole ionic liquid prepared by the invention has small molecular weight, is easier to form hydrogen bonds with ester bonds, connects polar functional groups to the surface of wood, reduces the surface polarity of the wood, improves the dimensional stability, the corrosion resistance and the ionic liquid characteristic of the wood, and develops a strong-permeability high-activity wood anticorrosive material.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure of the present invention.
Example embodiments will now be described more fully. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the invention.
The first embodiment is as follows: strong-permeability high-activity wood anticorrosive material and preparation method thereof
A strong-permeability high-activity wood anticorrosive material comprises the following components in parts by weight:
25 parts of acetic anhydride;
30 parts of imidazole type ionic liquid;
6 parts of bark penetrant;
the preparation method of the imidazole type ionic liquid comprises the following steps: reacting 1-methylimidazole with bromoethane at 50 ℃ for 12 hours, adding potassium acetate, reacting at 70 ℃ for 2 hours, and obtaining imidazole type ionic liquid after the reaction is finished.
The reaction equation is as follows:
the molar ratio of 1-methylimidazole to bromoethane is 1:1.
uniformly mixing imidazole type ionic liquid and acetic anhydride, then adding a bark penetrating agent, and uniformly mixing to obtain the strong-permeability high-activity wood anticorrosive material.
After use:
hydrogen bonds are formed between imidazole rings and ester bonds of wood molecules.
The second embodiment: strong-permeability high-activity wood anticorrosive material and preparation method thereof
A strong-permeability high-activity wood anticorrosive material comprises the following components in parts by weight:
50 parts of acetic anhydride;
50 parts of imidazole type ionic liquid;
10 parts of bark penetrant;
the preparation method of the imidazole ionic liquid comprises the following steps: reacting 1-methylimidazole with bromoethane at 55 ℃ for 14 hours, then adding potassium acetate, reacting at 72 ℃ for 1.5 hours, and obtaining imidazole type ionic liquid after the reaction is finished.
The molar ratio of 1-methylimidazole to bromoethane is 1:0.8.
the preparation method of the strong-permeability high-activity wood anticorrosive material comprises the steps of uniformly mixing imidazole type ionic liquid and acetic anhydride, then adding a bark penetrant, and uniformly mixing to obtain the strong-permeability high-activity wood anticorrosive material.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (3)
1. The strong-permeability high-activity wood anticorrosive material is characterized by comprising the following components in parts by weight:
1-50 parts of acetic anhydride;
10-50 parts of imidazole type ionic liquid;
2-10 parts of bark penetrant;
the preparation method of the imidazole ionic liquid comprises the following steps: reacting 1-methylimidazole with bromoethane at 55-65 ℃ for 10-14 hours, then adding potassium acetate, reacting at 68-72 ℃ for 1.5-2.5 hours to obtain imidazole type ionic liquid after the reaction is finished, wherein the reaction equation is as follows:
2. a strong penetration high activity wood preservative material according to claim 1, characterized in that the molar ratio of 1-methylimidazole to bromoethane is 1:0.8-1.2.
3. A method for preparing the strong penetration high activity wood preservative material according to claim 1 or 2, which is characterized in that: uniformly mixing imidazole type ionic liquid and acetic anhydride, then adding a bark penetrating agent, and uniformly mixing to obtain the high-permeability high-activity wood preservative material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211031310.0A CN115351863A (en) | 2022-08-26 | 2022-08-26 | Strong-permeability high-activity wood anticorrosive material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211031310.0A CN115351863A (en) | 2022-08-26 | 2022-08-26 | Strong-permeability high-activity wood anticorrosive material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115351863A true CN115351863A (en) | 2022-11-18 |
Family
ID=84005513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211031310.0A Pending CN115351863A (en) | 2022-08-26 | 2022-08-26 | Strong-permeability high-activity wood anticorrosive material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115351863A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101712698A (en) * | 2009-11-25 | 2010-05-26 | 大连工业大学 | Ionic liquid based method for extracting lignin by two-liquid-phase system |
| CN102326803A (en) * | 2011-07-04 | 2012-01-25 | 山东省花生研究所 | Method for dissolving peanut cake dregs by using imidazole ion liquid |
| CN105563587A (en) * | 2015-12-17 | 2016-05-11 | 常熟市梅李镇赵市永宏红木家具厂 | Anticorrosive timber |
| CN106946787A (en) * | 2017-03-22 | 2017-07-14 | 南京工业大学 | Method for synthesizing imidazole acidic ionic liquid |
| CN108822305A (en) * | 2018-06-27 | 2018-11-16 | 西北农林科技大学 | A method of it is pre-processed based on glyoxaline ion liquid and extracts gutta-percha in eucommia bark |
| CN111823344A (en) * | 2020-07-14 | 2020-10-27 | 浙江顺虎德邦涂料有限公司 | Strong-permeability high-activity wood anticorrosive material and preparation method thereof |
| CN113557894A (en) * | 2021-06-28 | 2021-10-29 | 贵州省核桃研究所 | Walnut disease and pest integrated prevention and control technology |
-
2022
- 2022-08-26 CN CN202211031310.0A patent/CN115351863A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101712698A (en) * | 2009-11-25 | 2010-05-26 | 大连工业大学 | Ionic liquid based method for extracting lignin by two-liquid-phase system |
| CN102326803A (en) * | 2011-07-04 | 2012-01-25 | 山东省花生研究所 | Method for dissolving peanut cake dregs by using imidazole ion liquid |
| CN105563587A (en) * | 2015-12-17 | 2016-05-11 | 常熟市梅李镇赵市永宏红木家具厂 | Anticorrosive timber |
| CN106946787A (en) * | 2017-03-22 | 2017-07-14 | 南京工业大学 | Method for synthesizing imidazole acidic ionic liquid |
| CN108822305A (en) * | 2018-06-27 | 2018-11-16 | 西北农林科技大学 | A method of it is pre-processed based on glyoxaline ion liquid and extracts gutta-percha in eucommia bark |
| CN111823344A (en) * | 2020-07-14 | 2020-10-27 | 浙江顺虎德邦涂料有限公司 | Strong-permeability high-activity wood anticorrosive material and preparation method thereof |
| CN113557894A (en) * | 2021-06-28 | 2021-10-29 | 贵州省核桃研究所 | Walnut disease and pest integrated prevention and control technology |
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Application publication date: 20221118 |
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