CN114822915A - MXene-based composite conductive paste and preparation method and application thereof - Google Patents
MXene-based composite conductive paste and preparation method and application thereof Download PDFInfo
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- CN114822915A CN114822915A CN202210563559.XA CN202210563559A CN114822915A CN 114822915 A CN114822915 A CN 114822915A CN 202210563559 A CN202210563559 A CN 202210563559A CN 114822915 A CN114822915 A CN 114822915A
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- 239000002131 composite material Substances 0.000 title claims abstract description 66
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000002904 solvent Substances 0.000 claims abstract description 16
- 239000002482 conductive additive Substances 0.000 claims abstract description 15
- 238000011049 filling Methods 0.000 claims abstract description 12
- 239000011259 mixed solution Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 6
- 238000013329 compounding Methods 0.000 claims abstract description 3
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 10
- 239000002202 Polyethylene glycol Substances 0.000 claims description 9
- -1 alkyl sodium sulfate Chemical group 0.000 claims description 9
- 229920001223 polyethylene glycol Polymers 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 7
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 7
- 239000002135 nanosheet Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 238000010146 3D printing Methods 0.000 claims description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 6
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- 229910021389 graphene Inorganic materials 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 6
- 229910001416 lithium ion Inorganic materials 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 6
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical group [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 6
- 229910001415 sodium ion Inorganic materials 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
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- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- 238000000498 ball milling Methods 0.000 claims description 4
- 239000003575 carbonaceous material Substances 0.000 claims description 4
- VYFYYTLLBUKUHU-UHFFFAOYSA-N dopamine Chemical compound NCCC1=CC=C(O)C(O)=C1 VYFYYTLLBUKUHU-UHFFFAOYSA-N 0.000 claims description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
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- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 4
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims description 4
- 238000001238 wet grinding Methods 0.000 claims description 4
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 claims description 3
- VBIIFPGSPJYLRR-UHFFFAOYSA-M Stearyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C VBIIFPGSPJYLRR-UHFFFAOYSA-M 0.000 claims description 3
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 3
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 3
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 3
- 229920003063 hydroxymethyl cellulose Polymers 0.000 claims description 3
- 229940031574 hydroxymethyl cellulose Drugs 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 3
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 3
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 3
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 3
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 claims description 2
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 claims description 2
- 239000002028 Biomass Substances 0.000 claims description 2
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 2
- 229920001661 Chitosan Polymers 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 2
- 108010010803 Gelatin Proteins 0.000 claims description 2
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 claims description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 2
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 2
- 150000001412 amines Chemical class 0.000 claims description 2
- BTBJBAZGXNKLQC-UHFFFAOYSA-N ammonium lauryl sulfate Chemical compound [NH4+].CCCCCCCCCCCCOS([O-])(=O)=O BTBJBAZGXNKLQC-UHFFFAOYSA-N 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 229920003086 cellulose ether Polymers 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 235000019329 dioctyl sodium sulphosuccinate Nutrition 0.000 claims description 2
- YHAIUSTWZPMYGG-UHFFFAOYSA-L disodium;2,2-dioctyl-3-sulfobutanedioate Chemical compound [Na+].[Na+].CCCCCCCCC(C([O-])=O)(C(C([O-])=O)S(O)(=O)=O)CCCCCCCC YHAIUSTWZPMYGG-UHFFFAOYSA-L 0.000 claims description 2
- TVACALAUIQMRDF-UHFFFAOYSA-N dodecyl dihydrogen phosphate Chemical compound CCCCCCCCCCCCOP(O)(O)=O TVACALAUIQMRDF-UHFFFAOYSA-N 0.000 claims description 2
- 229960003638 dopamine Drugs 0.000 claims description 2
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims description 2
- 229920000159 gelatin Polymers 0.000 claims description 2
- 239000008273 gelatin Substances 0.000 claims description 2
- 235000019322 gelatine Nutrition 0.000 claims description 2
- 235000011852 gelatine desserts Nutrition 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 239000001863 hydroxypropyl cellulose Substances 0.000 claims description 2
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 claims description 2
- DVEKCXOJTLDBFE-UHFFFAOYSA-N n-dodecyl-n,n-dimethylglycinate Chemical compound CCCCCCCCCCCC[N+](C)(C)CC([O-])=O DVEKCXOJTLDBFE-UHFFFAOYSA-N 0.000 claims description 2
- SVBAPZTYWZGPKN-UHFFFAOYSA-N n-methyldodecan-1-amine;hydrochloride Chemical compound Cl.CCCCCCCCCCCCNC SVBAPZTYWZGPKN-UHFFFAOYSA-N 0.000 claims description 2
- 229940055577 oleyl alcohol Drugs 0.000 claims description 2
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 claims description 2
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 claims description 2
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 2
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 2
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 2
- 229920002620 polyvinyl fluoride Polymers 0.000 claims description 2
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 2
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 2
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- CQLFBEKRDQMJLZ-UHFFFAOYSA-M silver acetate Chemical compound [Ag+].CC([O-])=O CQLFBEKRDQMJLZ-UHFFFAOYSA-M 0.000 claims description 2
- 229940071536 silver acetate Drugs 0.000 claims description 2
- XNGYKPINNDWGGF-UHFFFAOYSA-L silver oxalate Chemical compound [Ag+].[Ag+].[O-]C(=O)C([O-])=O XNGYKPINNDWGGF-UHFFFAOYSA-L 0.000 claims description 2
- JKOCEVIXVMBKJA-UHFFFAOYSA-M silver;butanoate Chemical compound [Ag+].CCCC([O-])=O JKOCEVIXVMBKJA-UHFFFAOYSA-M 0.000 claims description 2
- 239000002356 single layer Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Chemical group 0.000 claims description 2
- OABYVIYXWMZFFJ-ZUHYDKSRSA-M sodium glycocholate Chemical compound [Na+].C([C@H]1C[C@H]2O)[C@H](O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H]([C@@H](CCC(=O)NCC([O-])=O)C)[C@@]2(C)[C@@H](O)C1 OABYVIYXWMZFFJ-ZUHYDKSRSA-M 0.000 claims description 2
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 claims description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 2
- 235000011152 sodium sulphate Nutrition 0.000 claims description 2
- NWZBFJYXRGSRGD-UHFFFAOYSA-M sodium;octadecyl sulfate Chemical compound [Na+].CCCCCCCCCCCCCCCCCCOS([O-])(=O)=O NWZBFJYXRGSRGD-UHFFFAOYSA-M 0.000 claims description 2
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000003860 storage Methods 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000013508 migration Methods 0.000 description 3
- 230000005012 migration Effects 0.000 description 3
- 230000032798 delamination Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- GYBGISCHRVNSSC-UHFFFAOYSA-N [Na].CCCCCCCCCCCCOS(=O)(=O)OC Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)OC GYBGISCHRVNSSC-UHFFFAOYSA-N 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- WQPDQJCBHQPNCZ-UHFFFAOYSA-N cyclohexa-2,4-dien-1-one Chemical compound O=C1CC=CC=C1 WQPDQJCBHQPNCZ-UHFFFAOYSA-N 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
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-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/24—Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon or silicon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Conductive Materials (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Manufacturing Of Electric Cables (AREA)
Abstract
An MXene-based composite conductive paste and a preparation method and application thereof, wherein the MXene-based composite conductive paste is prepared by compounding the following raw materials in percentage by weight: 0.01-50% of MXene conductive base material, 0-50% of filling conductive additive, 0.5-10% of dispersing assistant and 50-99.5% of solvent; the preparation method comprises the following steps: 1) adding a dispersing auxiliary agent into a solvent, and uniformly mixing to obtain a mixed solution; 2) adding the MXene conductive base material and the filling conductive additive into the mixed liquid prepared in the step 1), and uniformly mixing to obtain the MXene-based composite conductive paste. The MXene-based composite conductive paste disclosed by the invention has the characteristics of more excellent conductivity, good dispersibility, better storage stability and the like, and compared with the traditional conductive paste, the MXene-based composite conductive paste is relatively low in dosage in application, so that the MXene-based composite conductive paste is beneficial to saving materials, namely reducing the cost.
Description
Technical Field
The invention relates to the technical field of electrode materials and preparation thereof, in particular to MXene-based composite conductive paste and a preparation method and application thereof.
Background
Conductive paste (also called conductive ink) refers to a viscous liquid with conductive capability, which promotes the migration of electrons by means of a conductive network constructed by conductive materials dispersed in the paste. The conductive paste is generally mainly composed of a conductive material, a filling conductive additive, a dispersion aid and a solvent. The conductive material is uniformly dispersed in the solvent by adopting the dispersing auxiliary agent to construct a conductive network, and then the filling conductive additive is added to make up the gap position of the conductive network, so that the conductivity of the conductive slurry is further improved. Therefore, the properties of the conductive paste, such as conductivity, dispersibility and stability, directly influence the application of the conductive paste in various fields.
MXene has received much attention from researchers in various countries since 2011 as an emerging two-dimensional (2D) transition metal carbide/nitride. In terms of structure, MXene is a two-dimensional material with a graphene-like structure consisting of carbon layers and transition metal layers alternately, and has a large specific surface area and excellent metal conductivity. Compared with the traditional conductive agents, such as conductive carbon black, carbon nano tubes, graphene and the like, MXene has higher conductivity and needs relatively low dosage. More importantly, MXene is used as a novel conductive material, and a three-dimensional conductive framework formed by mutually overlapping large-sheet-layer structures can promote the rapid migration of electrons.
However, due to the large sheet structure and the high specific surface area of MXene, strong van der Waals acting force exists between MXene sheets, so that MXene nanosheets are irreversibly stacked and agglomerated and are difficult to uniformly disperse in a solvent, and performances such as conductivity, dispersibility and the like of MXene conductive paste are seriously influenced. In addition, the exposed terminal metal atoms on the surface of the MXene sheet layer are easily oxidized, so that the intrinsic property of MXene is lost. Therefore, how to develop a MXene conductive paste with high conductivity, high stability and uniform dispersion has become a technical problem to be solved.
Disclosure of Invention
Based on the MXene-based composite conductive slurry, the preparation method and the application thereof are provided, and the technical problem that in the prior art, MXene nanosheets are irreversibly stacked and agglomerated and are difficult to uniformly disperse in a solvent, so that performances such as conductivity, dispersibility and the like of the MXene-based composite conductive slurry are seriously influenced is solved.
In order to achieve the purpose, the invention provides MXene-based composite conductive paste which is prepared by compounding the following raw materials in percentage by weight: 0.01-50% of MXene conductive base material, 0-50% of filling conductive additive, 0.5-10% of dispersing assistant and 50-99.5% of solvent.
As a further preferable technical scheme, the MXene conductive base material is one or more of MXene powder, MXene single-layer nanosheets, MXene multi-layer nanosheets, carbon nanotube @ MXene composite materials, graphene @ MXene composite materials, conductive carbon black @ MXene composite materials, biomass carbon @ MXene composite materials and high polymer @ MXene composite materials.
As a further preferable technical scheme of the present invention, the filling conductive additive is one or more of a carbon material, a nano metal powder and organic silver, wherein the carbon material is conductive graphite, conductive carbon black, graphene or carbon nanotubes; the nano metal powder is silver nano metal, copper nano metal, gold nano metal or platinum nano metal powder; the organic silver is silver nitrate, silver acetate, silver oxalate or silver butyrate.
As a further preferable technical scheme of the invention, the dispersing auxiliary agent is sodium octadecyl sulfate, sodium stearate, sodium dioctyl sulfosuccinate, sodium glycocholate, oleyl alcohol polyoxyethylene ether, alkylbenzene sulfonic amine, sodium dodecyl sulfate, ammonium dodecyl sulfate, dodecyl phosphate, secondary alkyl sodium sulfate, alpha-alkenyl sodium sulfonate, octadecyl trimethyl ammonium chloride, hexadecyl trimethyl ammonium chloride, dodecyl betaine, dodecyl methyl ammonium chloride, polyvinyl alcohol, gelatin, hydroxymethyl cellulose, hydroxypropyl cellulose, cellulose ether, polyvinylidene fluoride, polyvinyl pyrrolidone, polyethylene glycol or sodium carboxymethyl cellulose, a carbon nanotube solution, a chitosan aqueous solution, a dopamine solution, oleyl amine, polyethylene glycol monomethyl ether, hexadecyl trimethyl ammonium bromide, sodium dodecyl benzene sulfonate, polyvinylidene fluoride, sodium dodecyl sulfate, octadecyl trimethyl ammonium chloride, hexadecyl trimethyl ammonium chloride, or sodium dodecyl methyl sulfate, or sodium dodecyl benzene sulfonate, One or more of tetrafluoroethylene-ethylene copolymer, polytetrafluoroethylene, polyperfluoroethylpropylene, polychlorotrifluoroethylene or polyvinyl fluoride.
As a further preferable technical scheme of the invention, the solvent is one or more of water, methanol, ethanol, glycol, polyethylene glycol, diethyl ether, benzene, toluene, styrene, acetone, acetonitrile, formamide, dimethyl sulfoxide, carbon tetrachloride, N-methylpyrrolidone, N-dimethylformamide, N-dimethylacetamide and cyclohexane.
According to another aspect of the present invention, the present invention further provides a preparation method of an MXene-based composite conductive paste, comprising the following steps:
1) adding a dispersing auxiliary agent into a solvent, and uniformly mixing to obtain a mixed solution;
2) adding the MXene conductive base material and the filling conductive additive into the mixed liquid prepared in the step 1), and uniformly mixing to obtain the MXene-based composite conductive paste.
As a further preferable technical scheme, the step 1) and the step 2) are mixed in a stirring, ultrasonic, oscillating, wet grinding or ball milling mode, and the mixing time of the step 2) is 0.1-24 h.
As a further preferable technical scheme of the invention, in the step 1) and the step 2), the raw materials are as follows by weight percent: 0.01-50% of MXene conductive base material, 0-50% of filling conductive additive, 0.5-10% of dispersing aid and 50-99.5% of solvent, and the dispersibility and stability of the MXene conductive base material in the solvent and the conductivity of the MXene-based composite conductive slurry can be regulated and controlled by changing the raw material proportion.
According to another aspect of the present invention, the present invention also provides a use of an MXene-based composite conductive paste as a conductive additive for 3D printing, touch screen film, display, transparent conductive film, sensor, flexible electronic product, lithium ion battery, sodium ion battery, or supercapacitor.
The MXene-based composite conductive paste and the preparation method and application thereof have the following beneficial effects by adopting the technical scheme:
1) the MXene-based composite conductive paste provided by the invention fully exerts the advantages of MXene conductivity, further solves the problems of dispersibility and storage stability of MXene, and compared with the traditional conductive paste, the MXene-based composite conductive paste has relatively low consumption in application, so that the MXene-based composite conductive paste is beneficial to saving materials, namely reducing the cost;
2) the MXene-based composite conductive paste can be widely applied to the fields of 3D printing, touch screen films, displays, transparent conductive films, sensors, flexible electronic products, lithium ion batteries, sodium ion batteries, super capacitors and the like as a conductive additive, and a stable conductive network can be constructed on a substrate to promote the rapid migration of electrons;
3) the preparation method of the MXene-based composite conductive paste is simple, convenient and safe to operate, mild in condition, environment-friendly and capable of realizing large-scale production.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a graph of stability test results of MXene-based composite conductive pastes prepared in one to five separate examples.
The objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments. In the preferred embodiments, the terms "upper", "lower", "left", "right", "middle" and "a" are used for clarity of description only, and are not used to limit the scope of the invention, and the relative relationship between the terms and the terms is not changed or modified substantially without changing the technical content of the invention.
Example one
An MXene-based composite conductive paste and a preparation method thereof, wherein the preparation method comprises the following steps:
(1) under the condition of room temperature, 100g of hydroxymethyl cellulose is added into 500mL of deionized water and uniformly mixed in an ultrasonic mode to obtain a mixed solution;
(2) and (2) adding 10g of etched multilayer MXene nanosheets and 1g of conductive carbon black into the mixed liquid prepared in the step (1), and treating for 24h in an ultrasonic mode to obtain the water-based MXene-based composite conductive slurry.
Example two
An MXene-based composite conductive paste and a preparation method thereof, wherein the preparation method comprises the following steps:
(1) under the condition of room temperature, adding 1g of polyethylene glycol into 19mL of deionized water, and carrying out wet grinding mixing treatment until the polyethylene glycol is completely dissolved to obtain a mixed solution;
(2) and (2) adding 200mg of etched MXene powder and 500mg of silver nano powder into the mixed solution prepared in the step (1), and treating for 3h in a wet grinding mode to obtain MXene-based composite conductive slurry.
EXAMPLE III
An MXene-based composite conductive paste and a preparation method thereof, wherein the preparation method comprises the following steps:
(1) under the condition of room temperature, adding a composite dispersing auxiliary agent consisting of 1g of polyvinyl alcohol solution and 0.5g of sodium carboxymethyl cellulose solution into 2L of deionized water, and uniformly mixing in a stirring manner to obtain a mixed solution;
(2) and (2) adding 500mg of MXene powder material and 200mg of silver nitrate into the mixed liquid prepared in the step (1), and treating for 5 hours in a stirring manner to obtain the MXene-based composite conductive slurry.
Example four
An MXene-based composite conductive paste and a preparation method thereof, wherein the preparation method comprises the following steps:
(1) under the condition of room temperature, 2g of polyethylene glycol monomethyl ether dispersing aid is added into 200mL of N-methyl pyrrolidone solution, and the mixture is uniformly mixed in a ball milling mode to obtain a mixed solution.
(2) And (2) adding 200mg of MXene powder material and 500mg of graphene into the mixed solution prepared in the step (1), and treating for 14h in a ball milling manner to obtain MXene-based composite conductive slurry.
EXAMPLE five
An MXene-based composite conductive paste and a preparation method thereof, wherein the preparation method comprises the following steps:
(1) adding 1g of polytetrafluoroethylene into 19g of N-methylpyrrolidone solution at room temperature, and stirring for 1 hour under the heating condition of 50 ℃ and stirring until the polytetrafluoroethylene is completely dissolved to obtain a mixed solution;
(2) and (2) adding 100mg of MXene powder material and 500mg of conductive carbon black into the mixed solution prepared in the step (1), and treating for 20 hours in a stirring manner to obtain MXene-based composite conductive slurry.
The performance of the MXene-based composite conductive paste prepared in examples 1 to 5 was tested, and the test results are shown in table 1 below.
TABLE 1 Performance test results of MXene composite conductive pastes prepared in examples one to five
| Name of project | Example one | Example two | EXAMPLE III | Example four | EXAMPLE five |
| Viscosity (mPa.s) | 2484 | 3122 | 3986 | 4556 | 5213 |
| Solid content (%) | 0.99 | 2.1 | 4.2 | 6.2 | 7.8 |
| pH | 7.1 | 7.1 | 7.0 | 6.9 | 6.9 |
As can be seen from table 1, the MXene composite conductive paste prepared in the first to fifth embodiments of the present invention has neutral PH, and exhibits excellent viscosity and solid content, and can completely meet the requirements of conductive pastes in the fields of 3D printing, touch screen film, display, transparent conductive film, sensor, flexible electronic product, lithium ion battery, sodium ion battery, supercapacitor, etc.
The MXene-based composite conductive pastes prepared in examples 1 to 5 were subjected to conductivity tests, and the results are shown in table 2.
TABLE 2 conductivity test results of MXene composite conductive paste prepared in examples one to five
As can be seen from table 2, the MXene composite conductive paste prepared in the first to fifth embodiments of the present invention all show excellent conductivity, and can completely meet the requirements of conductive pastes in the fields of 3D printing, touch screen films, displays, transparent conductive films, sensors, flexible electronic products, lithium ion batteries, sodium ion batteries, supercapacitors, and the like.
The MXene composite conductive paste prepared in the first to fifth examples was subjected to a solid-liquid delamination test, as shown in fig. 1, which is an image obtained after standing for one month, and it can be known through observation that the MXene composite conductive paste after standing for one month still maintains good dispersibility, and no solid-liquid delamination occurs, indicating that the MXene composite conductive paste has good dispersibility and good storage stability.
The first to fifth embodiments are preferred examples of synthesizing the MXene-based composite conductive paste of the present invention, and it is understood that the preferred proportions of the selected materials are the best in each embodiment. In addition, from the aspect of conductivity performance, the first embodiment is the best, and each performance is stable and reliable, so that the first embodiment is more suitable for application in the fields of 3D printing, touch screen films, displays, transparent conductive films, sensors, flexible electronic products, lithium ion batteries, sodium ion batteries, supercapacitors and the like.
Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are merely examples and that many variations or modifications may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims.
Claims (9)
1. The MXene-based composite conductive paste is characterized by being prepared by compounding the following raw materials in percentage by weight: 0.01-50% of MXene conductive base material, 0-50% of filling conductive additive, 0.5-10% of dispersing aid and 50-99.5% of solvent.
2. The MXene-based composite conductive paste as claimed in claim 1, wherein the MXene conductive base material is one or more of MXene powder, MXene single-layer nanosheets, MXene multi-layer nanosheets, carbon nanotube @ MXene composite material, graphene @ MXene composite material, conductive carbon black @ MXene composite material, biomass carbon @ MXene composite material and high polymer @ MXene composite material.
3. The MXene-based composite conductive paste of claim 1, wherein the filling conductive additive is one or more of a carbon material, a nano metal powder, and organic silver, wherein the carbon material is conductive graphite, conductive carbon black, graphene or carbon nanotubes; the nano metal powder is silver nano metal, copper nano metal, gold nano metal or platinum nano metal powder; the organic silver is silver nitrate, silver acetate, silver oxalate or silver butyrate.
4. The MXene-based composite conductive paste according to claim 1, wherein the dispersion aid is sodium octadecyl sulfate, sodium stearate, sodium dioctyl sulfosuccinate, sodium glycocholate, oleyl alcohol polyoxyethylene ether, alkylbenzenesulfonate amine, sodium dodecyl sulfate, ammonium dodecyl sulfate, dodecyl phosphate, secondary alkyl sodium sulfate, sodium α -alkenyl sulfonate, octadecyl trimethyl ammonium chloride, hexadecyltrimethyl ammonium chloride, dodecyl betaine, dodecylmethyl ammonium chloride, polyvinyl alcohol, gelatin, hydroxymethyl cellulose, hydroxypropyl cellulose, cellulose ether, polyvinylidene fluoride, polyvinyl pyrrolidone, polyethylene glycol or sodium carboxymethyl cellulose, a carbon nanotube solution, a chitosan aqueous solution, a dopamine solution, oleyl amine, polyethylene glycol monomethyl ether, hexadecyl trimethyl ammonium bromide, sodium dodecylbenzenesulfonate, a polyvinyl alcohol, a polymer, a, One or more of polyvinylidene fluoride, tetrafluoroethylene-ethylene copolymer, polytetrafluoroethylene, polyfluorinated ethylene propylene, polychlorotrifluoroethylene or polyvinyl fluoride.
5. The MXene-based composite conductive paste of claim 1, wherein the solvent is one or more of water, methanol, ethanol, ethylene glycol, polyethylene glycol, diethyl ether, benzene, toluene, styrene, acetone, acetonitrile, formamide, dimethyl sulfoxide, carbon tetrachloride, N-methylpyrrolidone, N-dimethylformamide, N-dimethylacetamide, cyclohexane.
6. The preparation method of MXene-based composite conductive paste according to any one of claims 1 to 5, characterized by comprising the steps of:
1) adding a dispersing auxiliary agent into a solvent, and uniformly mixing to obtain a mixed solution;
2) adding the MXene conductive base material and the filling conductive additive into the mixed liquid prepared in the step 1), and uniformly mixing to obtain the MXene-based composite conductive paste.
7. The preparation method of MXene-based composite conductive paste according to claim 6, wherein step 1) and step 2) are mixed by stirring, ultrasonic, vibration, wet milling or ball milling, and the mixing time in step 2) is 0.1-24 h.
8. The preparation method of the MXene-based composite conductive paste according to claim 6, wherein in the step 1) and the step 2), the raw materials comprise, by weight: 0.01-50% of MXene conductive base material, 0-50% of filling conductive additive, 0.5-10% of dispersing aid and 50-99.5% of solvent, and the dispersibility and stability of the MXene conductive base material in the solvent and the conductivity of the MXene-based composite conductive slurry can be regulated and controlled by changing the raw material proportion.
9. Use of the MXene-based composite conductive paste according to any one of claims 1 to 5, wherein the MXene-based composite conductive paste is used as a conductive additive in 3D printing, touch screen film, display, transparent conductive film, sensor, flexible electronic product, lithium ion battery, sodium ion battery or supercapacitor.
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| PCT/CN2023/079961 WO2023226515A1 (en) | 2022-05-23 | 2023-03-07 | Mxene-based composite conductive paste, and preparation method therefor and use thereof |
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| CN116333542A (en) * | 2023-02-27 | 2023-06-27 | 沈阳航空航天大学 | Conductive heavy-duty anticorrosive paint and preparation method thereof |
| CN116515146A (en) * | 2023-05-06 | 2023-08-01 | 陕西科技大学 | Multifunctional film material with cellulose/graphene-Mxene hybrid interweaving structure and preparation method thereof |
| WO2023226515A1 (en) * | 2022-05-23 | 2023-11-30 | 江苏奥煋新材料科技有限公司 | Mxene-based composite conductive paste, and preparation method therefor and use thereof |
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| CN118217401B (en) * | 2024-05-23 | 2024-08-06 | 东莞市人民医院 | Radiotherapy sensitizer based on Ti3C2-MXene two-dimensional material and application thereof |
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| KR20170093041A (en) * | 2016-02-04 | 2017-08-14 | 영남대학교 산학협력단 | The mxene ferrite composite and preparation thero |
| CN113881286A (en) * | 2020-07-02 | 2022-01-04 | 中国科学院大连化学物理研究所 | Water-based MXene ink-jet printing conductive ink and preparation method and application thereof |
| CN112992402B (en) * | 2021-04-16 | 2021-10-08 | 西安宏星电子浆料科技股份有限公司 | Silver and two-dimensional MXene mixed system conductor slurry for chip resistor and preparation method thereof |
| CN114822915A (en) * | 2022-05-23 | 2022-07-29 | 徐州纳烯新材料研究院有限公司 | MXene-based composite conductive paste and preparation method and application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023226515A1 (en) * | 2022-05-23 | 2023-11-30 | 江苏奥煋新材料科技有限公司 | Mxene-based composite conductive paste, and preparation method therefor and use thereof |
| CN116333542A (en) * | 2023-02-27 | 2023-06-27 | 沈阳航空航天大学 | Conductive heavy-duty anticorrosive paint and preparation method thereof |
| CN116515146A (en) * | 2023-05-06 | 2023-08-01 | 陕西科技大学 | Multifunctional film material with cellulose/graphene-Mxene hybrid interweaving structure and preparation method thereof |
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