CN114953086A - Intelligent porous wood and preparation method and application thereof - Google Patents
Intelligent porous wood and preparation method and application thereof Download PDFInfo
- Publication number
- CN114953086A CN114953086A CN202210628931.0A CN202210628931A CN114953086A CN 114953086 A CN114953086 A CN 114953086A CN 202210628931 A CN202210628931 A CN 202210628931A CN 114953086 A CN114953086 A CN 114953086A
- Authority
- CN
- China
- Prior art keywords
- porous wood
- wood
- porous
- intelligent
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002023 wood Substances 0.000 title claims abstract description 157
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims abstract description 54
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims abstract description 45
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 45
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 36
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 229910021589 Copper(I) bromide Inorganic materials 0.000 claims abstract description 17
- UKODFQOELJFMII-UHFFFAOYSA-N pentamethyldiethylenetriamine Chemical compound CN(C)CCN(C)CCN(C)C UKODFQOELJFMII-UHFFFAOYSA-N 0.000 claims abstract description 17
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims abstract description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 16
- QNILTEGFHQSKFF-UHFFFAOYSA-N n-propan-2-ylprop-2-enamide Chemical compound CC(C)NC(=O)C=C QNILTEGFHQSKFF-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000005708 Sodium hypochlorite Substances 0.000 claims abstract description 12
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims abstract description 12
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims abstract description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 8
- SDTXSEXYPROZSZ-UHFFFAOYSA-N 1,2-dibromo-2-methylpropane Chemical compound CC(C)(Br)CBr SDTXSEXYPROZSZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 240000007182 Ochroma pyramidale Species 0.000 claims description 39
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 30
- 239000000243 solution Substances 0.000 claims description 30
- NKNDPYCGAZPOFS-UHFFFAOYSA-M copper(i) bromide Chemical compound Br[Cu] NKNDPYCGAZPOFS-UHFFFAOYSA-M 0.000 claims description 15
- 238000005406 washing Methods 0.000 claims description 15
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 14
- 229910052794 bromium Inorganic materials 0.000 claims description 14
- 238000004108 freeze drying Methods 0.000 claims description 14
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 11
- 229920002488 Hemicellulose Polymers 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 9
- 230000007935 neutral effect Effects 0.000 claims description 8
- 238000007872 degassing Methods 0.000 claims description 7
- 238000011049 filling Methods 0.000 claims description 7
- 238000002791 soaking Methods 0.000 claims description 7
- 238000007710 freezing Methods 0.000 claims description 6
- 230000008014 freezing Effects 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 5
- 125000003277 amino group Chemical group 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 238000004064 recycling Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 7
- 125000001246 bromo group Chemical group Br* 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000002336 sorption--desorption measurement Methods 0.000 abstract description 2
- 229920003213 poly(N-isopropyl acrylamide) Polymers 0.000 description 27
- 239000003921 oil Substances 0.000 description 14
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 12
- 238000010521 absorption reaction Methods 0.000 description 11
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 11
- 210000002421 cell wall Anatomy 0.000 description 8
- 229920000642 polymer Polymers 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000001878 scanning electron micrograph Methods 0.000 description 4
- 238000010560 atom transfer radical polymerization reaction Methods 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- NPGIHFRTRXVWOY-UHFFFAOYSA-N Oil red O Chemical compound Cc1ccc(C)c(c1)N=Nc1cc(C)c(cc1C)N=Nc1c(O)ccc2ccccc12 NPGIHFRTRXVWOY-UHFFFAOYSA-N 0.000 description 2
- 229920002522 Wood fibre Polymers 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 239000008204 material by function Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 239000003305 oil spill Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 239000002025 wood fiber Substances 0.000 description 2
- CZWSZZHGSNZRMW-UHFFFAOYSA-N 1,2-dibromobutane Chemical compound CCC(Br)CBr CZWSZZHGSNZRMW-UHFFFAOYSA-N 0.000 description 1
- HLVFKOKELQSXIQ-UHFFFAOYSA-N 1-bromo-2-methylpropane Chemical compound CC(C)CBr HLVFKOKELQSXIQ-UHFFFAOYSA-N 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- 108010039939 Cell Wall Skeleton Proteins 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005576 amination reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002051 biphasic effect Effects 0.000 description 1
- 210000004520 cell wall skeleton Anatomy 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000000017 hydrogel Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005316 response function Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 230000003075 superhydrophobic effect Effects 0.000 description 1
- 239000010875 treated wood Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
-
- 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
- B27K3/025—Controlling the process
-
- 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
- B27K3/156—Combined with grafting onto wood fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/16—Inorganic impregnating agents
- B27K3/20—Compounds of alkali metals or ammonium
-
- 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
-
- 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
-
- 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
- B27K3/52—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
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/0005—Cryogenic treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/04—Combined bleaching or impregnating and drying of wood
-
- 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
- B27K2240/60—Improving the heat-storage capacity
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses an intelligent porous wood and a preparation method and application thereof, wherein the porous wood is prepared by delignification treatment with sodium hypochlorite and sodium hydroxide, the prepared porous wood is soaked in an ethyl acetate solution of aminopropyltriethoxysilane at room temperature to introduce amino, the obtained porous wood containing amino is placed in a solution of dry dichloromethane and triethylamine, 2-bromoisobutyl bromide is dropwise added in an ice bath to introduce active bromine groups, the porous wood containing the active bromine groups is placed in a mixture of methanol, N-isopropylacrylamide, CuBr, Pentamethyldiethylenetriamine (PMDETA) and water to react under the protection of nitrogen, and the intelligent porous wood for oil leakage cleaning, continuous directional liquid conveying, liquid adsorption/desorption and recovery is prepared.
Description
Technical Field
The invention belongs to the technical field of functional materials, and particularly relates to an intelligent porous wood, and a preparation method and application thereof.
Background
The increase in the discharge amount of industrial wastewater and frequent oil leakage cause serious water pollution and cause serious environmental problems. New absorbent materials and techniques are urgently needed to solve the water pollution and liquid recovery problems. The directional transport and absorption of the liquid circulation is of vital importance for industrial and environmental applications such as oil spill clean-up and recovery, water purification and desalination of sea water. The porous liquid absorption material has great advantages due to excellent liquid absorption capacity, high specific surface area, light weight and good cost performance, but the existing porous liquid absorption material has complex preparation process and weak liquid absorption capacity.
Disclosure of Invention
The invention aims to provide intelligent porous wood for continuous directional transportation and recovery of liquid and self-release of heat, and a preparation method and application thereof.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a preparation method of intelligent porous wood comprises the following steps:
step 1: preparing porous wood, specifically:
step 1.1: delignifying a balsawood sample by using a sodium hypochlorite aqueous solution, adding acetic acid to adjust the pH value, and placing the balsawood sample in a water bath at 70-80 ℃ for preset time;
step 1.2: immersing the balsa sample treated in the step 1.1 into deionized water at the temperature of 70-80 ℃ until the pH value is neutral, so as to remove residual acetic acid and sodium hypochlorite chemicals;
step 1.3, putting the balsa sample treated in the step 1.2 into sodium hydroxide solution, and further treating for a preset time at 70-80 ℃ to remove hemicellulose part;
step 1.4: putting the balsa sample treated in the step 1.3 into water at 80 ℃ until the pH value of the water is neutral to remove residual sodium hydroxide chemicals;
step 1.5: freezing the balsa sample treated in step 1.4 at-40 ℃ for a predetermined time, and then freeze-drying at-56 ℃ for a predetermined time to obtain highly porous and lightweight porous wood;
step 2: preparing the intelligent porous wood, specifically:
step 2.1: soaking the porous wood prepared in the step 1 in an ethyl acetate solution of Aminopropyltriethoxysilane (APTES) at room temperature for a predetermined time, then putting the porous wood into clean ethyl acetate, and naturally drying at room temperature for a predetermined time after cleaning to obtain the porous wood containing amino;
step 2.2: putting the porous wood containing amino obtained in the step 2.1 into a solution of dry dichloromethane and triethylamine, dropwise adding 2-bromoisobutyl bromide into the solution of the dry dichloromethane and triethylamine in an ice bath, reacting in the ice bath for a preset time, washing with dichloromethane, and naturally drying at room temperature to obtain the porous wood containing active bromine;
step 2.3: and (3) putting the porous wood containing the active bromine obtained in the step (2.2) into a flask containing a mixed solution of N-isopropylacrylamide, cuprous bromide, pentamethyldiethylenetriamine, methanol and water, filling nitrogen into the flask after multiple inflation and degassing cycles, reacting at room temperature for a preset time, washing with methanol and water to remove unreacted N-isopropylacrylamide, cuprous bromide and pentamethyldiethylenetriamine, and finally, freeze-drying to obtain the PNIPAM modified intelligent porous wood.
Further, the step 1.1 specifically includes: the balsa sample is delignified by sodium hypochlorite aqueous solution with the weight percent of 2 percent, acetic acid is added to adjust the pH value to 4.6, and the balsa sample is placed in water bath with the temperature of 70-80 ℃ for 15-24 hours.
Further, the step 1.3 is specifically to place the balsa sample treated in the step 1.2 into a sodium hydroxide solution with the concentration of 8 wt% and further treat the balsa sample at 70-80 ℃ for 8-12h to remove the hemicellulose part.
Further, the step 1.5 specifically includes: freezing the balsa sample treated in the step 1.4 at-40 ℃ for 8-12h, and then freeze-drying at-56 ℃ for 48h to obtain the highly porous and light porous wood.
Further, the step 2.1 specifically comprises: and (2) soaking the porous wood prepared in the step (1) in an ethyl acetate solution of Aminopropyltriethoxysilane (APTES) with the concentration of 1 wt% for 8-12h at room temperature, then putting the porous wood into clean ethyl acetate, washing for 3-5 times, and naturally drying for 8-12h at room temperature to obtain the porous wood containing amino.
Further, step 2.2 specifically includes: putting the porous wood containing the amino group obtained in the step 2.1 into a vacuum/v-50: 1, dropwise adding 1 wt% of 2-bromoisobutyl bromide into the solution of the dried dichloromethane and triethylamine in an ice bath at 0 ℃, reacting in the ice bath for 1-2h, washing with dichloromethane, and naturally drying at room temperature to obtain the porous wood containing active bromine.
Further, step 2.3 specifically includes: putting the porous wood containing active bromine obtained in the step 2.2 into a flask containing a mixed solution of 5g of N-isopropylacrylamide, 0.2g of cuprous bromide, 1mL of pentamethyldiethylenetriamine, 20mL of methanol and 20mL of water, filling nitrogen into the flask after three times of inflation and degassing circulation, reacting at room temperature for 2-3h, washing with methanol and water, removing unreacted N-isopropylacrylamide, cuprous bromide and pentamethyldiethylenetriamine, and finally, freeze-drying to obtain the PNIPAM modified intelligent porous wood.
The intelligent porous wood is prepared by the method.
A method for preparing clean water adopts the intelligent porous wood to treat sewage so as to obtain the clean water.
The application of the intelligent porous wood in directional liquid transportation and recycling is disclosed.
The invention grafts APTES and 2-bromine isobutyl bromide on porous wood by surface atom transfer radical polymerization, and coats PNIPAM polymer to prepare intelligent porous wood, which can continuously and directionally transport and recover liquid and self-release heat, thereby achieving the purposes of purifying sewage and producing fresh water.
Compared with the prior art, the invention has the remarkable advantages that:
(1) the invention discloses a preparation method of intelligent porous wood for directional transportation and recycling of liquid, which is characterized in that adopted raw materials are easily obtained and can be regenerated, no precise and expensive instrument is used in the whole process, and a product with reversible switching wettability, high adsorption rate and adsorption capacity and automatic release of high-viscosity oil is prepared;
(2) the prepared intelligent porous wood can effectively carry out oriented transportation, liquid recovery and self-release, and has good application prospect in the aspects of energy and environmental protection due to the high stability, good reusability and the like of the polymers;
(3) the invention takes the porous compressible wood as a carrier, takes the temperature responsive poly (N-isopropylacrylamide) as a surface modifier, combines the excellent performances of the porous compressible wood and the surface modifier, prepares the intelligent porous wood with directional transportation and automatic liquid recovery, can directionally transport and automatically desorb organic solvents and oil, and achieves the aims of purifying sewage and producing clean water.
Drawings
Fig. 1 is an SEM image of virgin balsa wood, porous wood.
Fig. 2 is an SEM image of PNIPAM modified smart porous wood.
Fig. 3 is a moisture test chart of the PNIPAM modified smart porous wood.
Fig. 4 is a schematic diagram of a continuous directional transportation process of the PNIPAM modified intelligent porous wood.
Figure 5 is a graph of the automatic release and collection of PNIPAM modified smart porous wood.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A preparation method of intelligent porous wood comprises the following steps:
step 1: preparing porous wood, specifically:
step 1.1: delignifying a balsawood sample by using a sodium hypochlorite aqueous solution, adding acetic acid to adjust the pH value, and placing the balsawood sample in a water bath at 70-80 ℃ for preset time;
step 1.2: immersing the balsa sample treated in the step 1.1 into deionized water at the temperature of 70-80 ℃ until the pH value is neutral, so as to remove residual acetic acid and sodium hypochlorite chemicals;
step 1.3, putting the balsa sample treated in the step 1.2 into sodium hydroxide solution, and further treating for a preset time at 70-80 ℃ to remove hemicellulose part;
step 1.4: putting the balsa sample treated in the step 1.3 into water at 80 ℃ until the pH value of the water is neutral to remove residual sodium hydroxide chemicals;
step 1.5: freezing the balsa sample treated in step 1.4 at-40 ℃ for a predetermined time, and then freeze-drying at-56 ℃ for a predetermined time to obtain highly porous and lightweight porous wood;
step 2: preparing the intelligent porous wood, specifically:
step 2.1: soaking the porous wood prepared in the step 1 in an ethyl acetate solution of Aminopropyltriethoxysilane (APTES) at room temperature for a predetermined time, then putting the porous wood into clean ethyl acetate, and naturally drying at room temperature for a predetermined time after cleaning to obtain the porous wood containing amino;
step 2.2: putting the porous wood containing amino obtained in the step 2.1 into a solution of dry dichloromethane and triethylamine, dropwise adding 2-bromoisobutyl bromide into the solution of the dry dichloromethane and triethylamine in an ice bath, reacting in the ice bath for a preset time, washing with dichloromethane, and naturally drying at room temperature to obtain the porous wood containing active bromine;
step 2.3: and (3) putting the porous wood containing the active bromine obtained in the step (2.2) into a flask containing a mixed solution of N-isopropylacrylamide, cuprous bromide, pentamethyldiethylenetriamine, methanol and water, filling nitrogen into the flask after multiple inflation and degassing cycles, reacting at room temperature for a preset time, washing with methanol and water to remove unreacted N-isopropylacrylamide, cuprous bromide and pentamethyldiethylenetriamine, and finally, freeze-drying to obtain the PNIPAM modified intelligent porous wood.
Further, the step 1.1 specifically includes: the balsa sample is delignified by sodium hypochlorite aqueous solution with the weight percent of 2 percent, acetic acid is added to adjust the pH value to 4.6, and the balsa sample is placed in water bath with the temperature of 70-80 ℃ for 15-24 hours.
Further, the step 1.3 is specifically to place the balsa sample treated in the step 1.2 into a sodium hydroxide solution with the concentration of 8 wt% and further treat the balsa sample at 70-80 ℃ for 8-12h to remove the hemicellulose part.
Further, the step 1.5 specifically includes: freezing the balsa sample treated in the step 1.4 at-40 ℃ for 8-12h, and then freeze-drying at-56 ℃ for 48h to obtain the highly porous and light porous wood.
Further, the step 2.1 specifically includes: and (2) soaking the porous wood prepared in the step (1) in an ethyl acetate solution of Aminopropyltriethoxysilane (APTES) with the concentration of 1 wt% for 8-12h at room temperature, then putting the porous wood into clean ethyl acetate, washing for 3-5 times, and naturally drying for 8-12h at room temperature to obtain the porous wood containing amino.
Further, step 2.2 specifically comprises: putting the porous wood containing the amino group obtained in the step 2.1 into a vacuum/v-50: 1, dropwise adding 1 wt% of 2-bromoisobutyl bromide into the solution of the dried dichloromethane and triethylamine in an ice bath at 0 ℃, reacting in the ice bath for 1-2h, washing with dichloromethane, and naturally drying at room temperature to obtain the porous wood containing active bromine.
Further, step 2.3 specifically includes: putting the porous wood containing active bromine obtained in the step 2.2 into a flask containing 5g of N-isopropylacrylamide and 0.2g of cuprous bromide (the cuprous bromide can not only effectively initiate monomer polymerization, but also keep polymerization uniformity and avoid uneven distribution of polymers on the surface of a base material), wherein under the action of the catalyst, the obtained wood surface is covered with a layer of polymers which are respectively very uniform and are beneficial to wettability conversion, directional transportation and promotion of oil-water separation), 1mL of pentamethyldiethylenetriamine (the cuprous bromide and the pentamethyldiethylenetriamine are used as the catalyst), 20mL of methanol and 20mL of water are mixed, the ratio of the monomers to the catalyst is adjusted, so that the wood can be polymerized better and modified on the surface of the wood more uniformly, and after three times of inflation and degassing circulation, and filling nitrogen into the flask, reacting at room temperature for 2-3h, then washing with methanol and water, removing unreacted N-isopropylacrylamide, cuprous bromide and pentamethyldiethylenetriamine, and finally, freeze-drying to obtain the PNIPAM modified intelligent porous wood. The surface of delignified porous wood is modified with a responsive polymer poly (N-isopropylacrylamide) (PNIPAM) to prepare the elastic porous adsorption material with temperature control, high absorption speed and switchable wettability, and the properties of directionally conveying liquid and self-releasing viscous oil. In addition, the prepared intelligent porous wood has excellent mechanical property, flexibility and compression property, can be produced in a large scale and has a controllable microstructure, so that the purposes of separating high-viscosity oil, recovering liquid and treating sewage are achieved. The matrix material is delignified porous wood, has a spring-like layered structure, has high porosity and good elasticity, and can be used for liquid adsorption and self-release. The method comprises the steps of delignifying natural wood by using a sodium hypochlorite aqueous solution and a sodium hydroxide aqueous solution to obtain porous wood, and then sequentially carrying out amination and introducing active bromine groups. Then putting the wood into monomer N-isopropyl acrylamide solution, thereby modifying a layer of polymer on the surface of the wood to make the wood have a temperature response function. After 15 cycles of tests, the automatic release rate of the intelligent porous wood is still higher than 91%, and compared with the first cycle, the time for releasing oil only is slightly increased after the 15 th cycle test.
Example 1
Preparation of porous wood
Balsa Wood (Balsa Wood) was delignified with an aqueous sodium hypochlorite solution (. about.2 wt%) and acetic acid was added to adjust the pH to 4.6 and placed in a 70-80 ℃ water bath for 15-24 h. And after the reaction is finished, soaking the glass fiber into deionized water at 70-80 ℃ until the pH value of the water is neutral so as to remove residual chemicals. The treated balsa sample was then placed in sodium hydroxide solution (-8 wt%) and further treated at 70-80 ℃ for 10-12h to remove the hemicellulose fraction. The treated wood samples were carefully rinsed in an aqueous solution at 70-80 ℃ until the pH of the water was neutral to remove excess chemicals. Finally, the treated samples were frozen at-40 ℃ for 8-12h, and then freeze-dried at-56 ℃ for 48h, resulting in highly porous and lightweight porous wood.
FIG. 1 is an SEM image of the porous wood obtained after the above-described natural balsa wood and delignification. When viewed in cross section, the original wood is composed of many cell walls having a cellular porous structure (a in FIG. 1) 1 ). The cell wall of balsawood is dense and mainly composed of cellulose, hemicellulose and lignin (1 a in the figure) 2 ) They become entangled to provide the necessary mechanical integrity to the bulk wood. Chemical treatment results in a significant change in the cell wall that modifies the microstructure and morphology of the material. The vertically aligned wood fibers of the natural lumber are very smooth as viewed in the longitudinal section (1 a in the drawing) 3 And a 4 ). The original honeycomb structure of the natural lumber is completely transformed into the spring-like layered structure of the porous lumber (1 b in the drawing) 1 ). Such a wavy lamellar structure may be generated during the freeze-drying process, since ice crystal templates are likely to form wavy layers. More importantly, the nanopores are generated from the cell walls of porous wood, with highly loose cellulose nanofiber bundles (b in FIG. 1) compared to natural cell walls 2 -b 4 ). In addition, the cellulose nanofibrillar network is exposed along the cell wall skeleton, with numerous nanopores.
Preparation of thermal response type PNIPAM intelligent porous wood
The prepared porous wood was soaked in a solution of aminopropyltriethoxysilane (APTES,. about.1 wt%) in ethyl acetate at room temperature for 8-12h, rinsed with ethyl acetate and naturally dried for 8-12 h. Then, the obtained porous wood containing an amino group was put into a solution of dried dichloromethane and triethylamine (v/v ═ 50: 1). 2-Bromobutylbromide (. about.1 wt%) was added dropwise to the above solution in an ice bath, and then the reaction was maintained at the same temperature for 1-2h, washed with dichloromethane and dried naturally. Obtaining porous wood containing active bromine, putting the porous wood into a mixed solution containing N-isopropylacrylamide (about 5g), cuprous bromide (CuBr about 0.2g), pentamethyldiethylenetriamine (PMDETA about 1mL), methanol (about 20mL) and water (about 20mL), filling nitrogen into a flask after three cycles of inflation and degassing, and continuously reacting for 2-3h at room temperature. Then, the mixture was washed with methanol and water to remove unreacted monomers. Finally, PNIPAM intelligent porous wood is obtained by freeze drying.
Fig. 2 is an SEM image of the smart porous wood of PNIPAM described above, which shows that the PNIPAM polymer is uniformly coated on the cell wall in the luminal channel. The microstructure of the smart wood is almost the same as that of the porous wood, and the spring-like layered structure and the nano-porous structure are kept in the cell wall. Furthermore, the rough appearance of the wood fiber surface, which should be caused by PNIPAM modification, can be observed from the longitudinal section of the smart wood sample.
Oil-wetting test of PNIPAM Intelligent porous Wood
And (3) putting silicon oil drops on the surface of the PNIPAM intelligent porous wood, and taking pictures of complete absorption of the oil drops at different times.
FIG. 3 is the above intelligent porous wood wettability test, in which (a) shows that the intelligent porous wood is super-hydrophobic at 40 deg.C, (b) shows that the intelligent porous wood is hydrophilic at 25 deg.C, and (c) the surface silicone oil is completely absorbed for 0.2 s.
Continuous directional transportation of PNIPAM intelligent porous wood
Due to the switchable wettability of PNIPAM smart wood, fig. 4 shows the application in controllable liquid delivery and self-releasing oil. The directional liquid transport performance of PNIPAM smart wood was evaluated as shown in (a) of fig. 4. The water/chloroform biphasic solution was designed by adding 5mL of chloroform at the bottom of a beaker filled with water. When the temperature was raised to 40 ± 3 ℃, the smart wood (adsorbed n-hexane, oil red O stained, viscosity 0.3mPa · s) was immersed in the solution. Smart wood changes from hydrophilic (room temperature) to hydrophobic (40 ± 3 ℃). When the smart wood was contacted with chloroform, n-hexane (encapsulated by air) was gradually driven to the bottom of the smart wood and was miscible with chloroform (fig. 4 (b)), indicating a directional liquid transport from top to bottom. This is because the hydrophobic/oleophilic smart wood has a higher affinity for chloroform than water, which can overcome the low affinity of water around the smart wood, allowing n-hexane to diffuse into the chloroform.
PNIPAM intelligent porous wood adsorbed oil automatic release and collection
Fig. 5 is a mechanism diagram and continuous optical images of the process of self-releasing and collecting silicone oil (oil red O staining) at 25 ± 3 ℃ for PNIPAM smart porous wood. Fig. 5 (a) shows a mechanism diagram of the rapid adsorption and self-release properties of the smart porous wood. The n-hexane saturated smart wood was put into a glass bottle containing 1mL of water ((b) in fig. 5). N-hexane was completely released within 160 seconds, only n-hexane was collected in the glass bottle, and water was absorbed by the smart porous wood. The self-releasing capacity of the intelligent wood reaches 93.5 percent. After 15 cycles of testing, the rate of automatic release of the smartwood was still above 91% (fig. 5 (c)).
The PNIPAM coating and the elastic intelligent porous wood with the rapid absorption speed and the switchable wettability can directionally convey liquid and self-release viscous oil. The goal is to provide new insights by intelligent means to rapidly recover high viscosity oils or organic solvents from oil/water mixtures using intelligent porous wood. Wood nanotechnology, including delignification and surface modification, is applied to bulk wood and directly converted into functional materials. The functional intelligent wood is prepared from natural balsawood through chemical treatment and surface-initiated atom transfer radical polymerization (Si-ATRP). First, lignin and part of hemicellulose are removed from natural wood by a two-step chemical treatment to obtain a porous wood module with holocellulose. The honeycomb structure of the wood is reserved, and the cell walls form the woven texture structure of the layered structure, so that the porous wood has high mechanical compressibility and good elasticity. Secondly, wood functionalization is achieved by coating PNIPAM with Si-ATRP (including-NH 2 and-Br groups on the wood surface) resulting in reversible wettability, fast absorption speed and high absorption capacity. Moreover, the intelligent porous wood can realize continuous directional delivery of liquid above the critical temperature and automatically release absorbed oil below the critical temperature. The functional material provides new insight for the design and manufacture of the wood-based intelligent biomass composite material in aspects of oil spill cleaning, continuous and directional liquid conveying, automatic desorption/absorption and liquid recovery by combining the low tortuosity, high porosity and reversible wettability of the intelligent wood.
According to the invention, the spring-like layered structure porous wood is obtained by simple delignification treatment, then surface modification is carried out by surface atom transfer radical polymerization, a PNIPAM polymer is modified on the surface of the wood, and the temperature-responsive liquid adsorption/desorption and directionally transported intelligent porous wood is prepared, so that the wide application of the wood in the aspects of intelligent hydrogel, intelligent microfluid, artificial drug release, environmental remediation and the like is realized.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The preparation method of the intelligent porous wood is characterized by comprising the following steps:
step 1: preparing porous wood, specifically:
step 1.1: delignifying a balsawood sample by using a sodium hypochlorite aqueous solution, adding acetic acid to adjust the pH value, and placing the balsawood sample in a water bath at 70-80 ℃ for preset time;
step 1.2: immersing the balsa sample treated in the step 1.1 into deionized water at the temperature of 70-80 ℃ until the pH value is neutral, so as to remove residual acetic acid and sodium hypochlorite chemicals;
step 1.3, putting the balsa sample treated in the step 1.2 into sodium hydroxide solution, and further treating for a preset time at 70-80 ℃ to remove hemicellulose part;
step 1.4: putting the balsa sample treated in the step 1.3 into water at 80 ℃ until the pH value of the water is neutral to remove residual sodium hydroxide chemicals;
step 1.5: freezing the balsa sample treated in step 1.4 at-40 ℃ for a predetermined time, and then freeze-drying at-56 ℃ for a predetermined time to obtain highly porous and lightweight porous wood;
step 2: preparing the intelligent porous wood, specifically:
step 2.1: soaking the porous wood prepared in the step 1 in an ethyl acetate solution of Aminopropyltriethoxysilane (APTES) at room temperature for a predetermined time, then putting the porous wood into clean ethyl acetate, and naturally drying at room temperature for a predetermined time after cleaning to obtain the porous wood containing amino;
step 2.2: putting the porous wood containing amino obtained in the step 2.1 into a solution of dry dichloromethane and triethylamine, dropwise adding 2-bromoisobutyl bromide into the solution of the dry dichloromethane and triethylamine in an ice bath, reacting in the ice bath for a preset time, washing with dichloromethane, and naturally drying at room temperature to obtain the porous wood containing active bromine;
step 2.3: and (3) putting the porous wood containing the active bromine obtained in the step (2.2) into a flask containing a mixed solution of N-isopropylacrylamide, cuprous bromide, pentamethyldiethylenetriamine, methanol and water, filling nitrogen into the flask after multiple inflation and degassing cycles, reacting at room temperature for a preset time, washing with methanol and water to remove unreacted N-isopropylacrylamide, cuprous bromide and pentamethyldiethylenetriamine, and finally, freeze-drying to obtain the PNIPAM modified intelligent porous wood.
2. The method for preparing the intelligent porous wood as claimed in claim 1, wherein the step 1.1 is specifically as follows: the balsa sample is delignified by sodium hypochlorite aqueous solution with the weight percent of 2 percent, acetic acid is added to adjust the pH value to 4.6, and the balsa sample is placed in water bath with the temperature of 70-80 ℃ for 15-24 hours.
3. The method for preparing intelligent porous wood according to claim 2, wherein the step 1.3 is to remove the hemicellulose fraction by further treating the balsa sample treated in the step 1.2 with-8 wt% sodium hydroxide solution at 70-80 ℃ for 8-12 h.
4. The preparation method of the intelligent porous wood as claimed in claim 3, wherein the step 1.5 is specifically as follows: freezing the balsa sample treated in the step 1.4 at-40 ℃ for 8-12h, and then freeze-drying at-56 ℃ for 48h to obtain the highly porous and light porous wood.
5. The preparation method of the intelligent porous wood as claimed in claim 4, wherein the step 2.1 is specifically as follows: and (2) soaking the porous wood prepared in the step (1) in an ethyl acetate solution of Aminopropyltriethoxysilane (APTES) with the concentration of 1 wt% for 8-12h at room temperature, then putting the porous wood into clean ethyl acetate, washing for 3-5 times, and naturally drying for 8-12h at room temperature to obtain the porous wood containing amino.
6. The preparation method of the intelligent porous wood as claimed in claim 5, wherein the step 2.2 is specifically as follows: putting the porous wood containing the amino group obtained in the step 2.1 into a vacuum/v-50: 1, dropwise adding 1 wt% of 2-bromoisobutyl bromide into the solution of the dried dichloromethane and triethylamine in an ice bath at 0 ℃, reacting in the ice bath for 1-2h, washing with dichloromethane, and naturally drying at room temperature to obtain the porous wood containing active bromine.
7. The preparation method of the intelligent porous wood as claimed in claim 6, wherein the step 2.3 is specifically as follows: putting the porous wood containing active bromine obtained in the step 2.2 into a flask containing a mixed solution of 5g of N-isopropylacrylamide, 0.2g of cuprous bromide, 1mL of pentamethyldiethylenetriamine, 20mL of methanol and 20mL of water, filling nitrogen into the flask after three times of inflation and degassing circulation, reacting at room temperature for 2-3h, washing with methanol and water, removing unreacted N-isopropylacrylamide, cuprous bromide and pentamethyldiethylenetriamine, and finally, freeze-drying to obtain the PNIPAM modified intelligent porous wood.
8. An intelligent porous wood, characterized in that it is prepared by the method according to any one of claims 1 to 7.
9. A method for preparing clean water, characterized in that the intelligent porous wood according to claim 8 is used to treat sewage to obtain clean water.
10. Use of the smart porous wood according to claim 8 for directional liquid transport and recycling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210628931.0A CN114953086A (en) | 2022-06-06 | 2022-06-06 | Intelligent porous wood and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210628931.0A CN114953086A (en) | 2022-06-06 | 2022-06-06 | Intelligent porous wood and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114953086A true CN114953086A (en) | 2022-08-30 |
Family
ID=82960368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210628931.0A Pending CN114953086A (en) | 2022-06-06 | 2022-06-06 | Intelligent porous wood and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114953086A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103554377A (en) * | 2013-10-10 | 2014-02-05 | 常州大学 | Preparation method for coating of nano-silica through miniemulsion polymerization |
| CN103709340A (en) * | 2013-12-29 | 2014-04-09 | 哈尔滨工业大学 | Method for grafting poly(N-isopropylacrylamide) on surface of powdered activated carbon |
| CN108341989A (en) * | 2018-02-02 | 2018-07-31 | 华南理工大学 | The Thermo-sensitive polyurethane sponge and the preparation method and application thereof of controllable parent-hydrophobic conversion |
| CN109608683A (en) * | 2018-12-14 | 2019-04-12 | 中国林业科学研究院木材工业研究所 | A kind of wooden sponge oil absorption material and preparation method thereof |
| CN110497492A (en) * | 2019-08-30 | 2019-11-26 | 北京林业大学 | A kind of preparation method of the super-hydrophobic wooden sponge |
| CN111319107A (en) * | 2019-11-06 | 2020-06-23 | 华南理工大学 | High-hydrophobicity wood sponge with electrothermal conversion capability and preparation method and application thereof |
| CN114196066A (en) * | 2021-12-06 | 2022-03-18 | 南京林业大学 | Thermal response type intelligent sponge and preparation method and application thereof |
-
2022
- 2022-06-06 CN CN202210628931.0A patent/CN114953086A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103554377A (en) * | 2013-10-10 | 2014-02-05 | 常州大学 | Preparation method for coating of nano-silica through miniemulsion polymerization |
| CN103709340A (en) * | 2013-12-29 | 2014-04-09 | 哈尔滨工业大学 | Method for grafting poly(N-isopropylacrylamide) on surface of powdered activated carbon |
| CN108341989A (en) * | 2018-02-02 | 2018-07-31 | 华南理工大学 | The Thermo-sensitive polyurethane sponge and the preparation method and application thereof of controllable parent-hydrophobic conversion |
| CN109608683A (en) * | 2018-12-14 | 2019-04-12 | 中国林业科学研究院木材工业研究所 | A kind of wooden sponge oil absorption material and preparation method thereof |
| CN110497492A (en) * | 2019-08-30 | 2019-11-26 | 北京林业大学 | A kind of preparation method of the super-hydrophobic wooden sponge |
| CN111319107A (en) * | 2019-11-06 | 2020-06-23 | 华南理工大学 | High-hydrophobicity wood sponge with electrothermal conversion capability and preparation method and application thereof |
| CN114196066A (en) * | 2021-12-06 | 2022-03-18 | 南京林业大学 | Thermal response type intelligent sponge and preparation method and application thereof |
Non-Patent Citations (2)
| Title |
|---|
| HAO GUAN，等: "Highly Compressible Wood Sponges with a Spring-like Lamellar Structure as Effective and Reusable Oil Absorbents", 《ACS NANO》 * |
| KAILI WANG,等: "Two-dimensional membrane and three-dimensional bulk aerogel materials via top-down wood nanotechnology for multibehavioral and reusable oil/water separation", 《CHEMICAL ENGINEERING JOURNAL》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108929449A (en) | A kind of large area continuously prepares the method and device of functional copolymer membrane | |
| CN106378108A (en) | Preparation method of nano-cellulose-base heavy metal adsorbing material | |
| CN108905651A (en) | A kind of preparation method for the functional membrane that oil hydrosol separation and dyestuff removal can be achieved at the same time | |
| CN114196066B (en) | Thermal response type intelligent sponge and preparation method and application thereof | |
| CN103980526A (en) | Method for preparing acetylated-modified bacterial cellulose aerogel oil-absorbent material | |
| CN110180403A (en) | A kind of fiber tube enhancement type doughnut composite biological film and preparation method and application | |
| CN113801367A (en) | Porous hydrogel microsphere and preparation method thereof | |
| CN113372582A (en) | Bionic composite hydrogel and preparation method and application thereof | |
| CN115947901A (en) | Preparation method of spherical water-absorbent resin | |
| CN109232966B (en) | High-elasticity melamine resin oil absorption sponge and preparation method thereof | |
| CN114953086A (en) | Intelligent porous wood and preparation method and application thereof | |
| CN115282888B (en) | Preparation method and application of super-hydrophobic aerogel with super-fast oil adsorption capacity and high compression recovery performance | |
| CN115340702B (en) | Surface heat treatment wood fiber skeleton/polydimethylsiloxane elastic composite gel and preparation method thereof | |
| CN108855015A (en) | The preparation method of the gelatinous fibre film of lead ion in a kind of Dynamic Adsorption water | |
| CN111875742A (en) | Preparation method of hydrophilic bacterial cellulose, hydrophilic bacterial cellulose and application | |
| CN114917875A (en) | Hydrophobic magnetic three-dimensional composite material and preparation method and application thereof | |
| KR102514496B1 (en) | A method for preparing super absorbent polymer non-woven fabfic | |
| CN103962105A (en) | Preparation method of PTES (phenyltriethoxysilane) surface modified bacterial cellulose aerogel oil-absorbing material | |
| CN110040713B (en) | Preparation method of carbon aerogel | |
| CN114196154A (en) | P-CaCl2-AuCr-MOF aerogel material, and preparation method and application thereof | |
| CN114259889A (en) | Emulsion separation membrane and preparation method and use method thereof | |
| CN114989482B (en) | Durable, flexible and super-hydrophobic nanometer Kong Mumo, and preparation method and application thereof | |
| CN110585762A (en) | Polymer oil absorption material and preparation method thereof | |
| CN1334282A (en) | Process for preparing high-water-absorption flexible material by ultraviolet surface graft method | |
| CN113005762B (en) | Preparation method of long-acting humidity-controlling material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220830 |
|
| RJ01 | Rejection of invention patent application after publication |