CN114213945A - Preparation method and application of carbon nanofiber functional coating - Google Patents
Preparation method and application of carbon nanofiber functional coating Download PDFInfo
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- CN114213945A CN114213945A CN202111367668.6A CN202111367668A CN114213945A CN 114213945 A CN114213945 A CN 114213945A CN 202111367668 A CN202111367668 A CN 202111367668A CN 114213945 A CN114213945 A CN 114213945A
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- functional coating
- carbon nanofiber
- coating
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 238000000576 coating method Methods 0.000 title claims abstract description 84
- 239000002134 carbon nanofiber Substances 0.000 title claims abstract description 80
- 239000011248 coating agent Substances 0.000 title claims abstract description 80
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 239000002270 dispersing agent Substances 0.000 claims abstract description 17
- 239000002904 solvent Substances 0.000 claims abstract description 16
- 229920005989 resin Polymers 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000017525 heat dissipation Effects 0.000 claims abstract description 8
- 230000003068 static effect Effects 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 229910021392 nanocarbon Inorganic materials 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 6
- 239000000654 additive Substances 0.000 claims abstract description 6
- 239000004917 carbon fiber Substances 0.000 claims abstract description 6
- 238000010008 shearing Methods 0.000 claims abstract description 5
- 238000000227 grinding Methods 0.000 claims abstract description 4
- 238000007765 extrusion coating Methods 0.000 claims abstract description 3
- 238000007650 screen-printing Methods 0.000 claims abstract description 3
- 238000004528 spin coating Methods 0.000 claims abstract description 3
- 238000005507 spraying Methods 0.000 claims abstract description 3
- 239000002562 thickening agent Substances 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000008367 deionised water Substances 0.000 claims description 8
- 229910021641 deionized water Inorganic materials 0.000 claims description 8
- 238000005087 graphitization Methods 0.000 claims description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- 238000005536 corrosion prevention Methods 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 239000004925 Acrylic resin Substances 0.000 claims description 5
- 229920000178 Acrylic resin Polymers 0.000 claims description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 4
- 229920002125 Sokalan® Polymers 0.000 claims description 4
- 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 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 claims description 4
- 239000012948 isocyanate Substances 0.000 claims description 4
- 150000002513 isocyanates Chemical class 0.000 claims description 4
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 claims description 4
- 239000004584 polyacrylic acid Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000004645 polyester resin Substances 0.000 claims description 4
- 229920001225 polyester resin Polymers 0.000 claims description 4
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 4
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 4
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 claims description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 239000009719 polyimide resin Substances 0.000 claims description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 3
- 229920005749 polyurethane resin Polymers 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 claims description 2
- UICXTANXZJJIBC-UHFFFAOYSA-N 1-(1-hydroperoxycyclohexyl)peroxycyclohexan-1-ol Chemical compound C1CCCCC1(O)OOC1(OO)CCCCC1 UICXTANXZJJIBC-UHFFFAOYSA-N 0.000 claims description 2
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims description 2
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 claims description 2
- VQVIHDPBMFABCQ-UHFFFAOYSA-N 5-(1,3-dioxo-2-benzofuran-5-carbonyl)-2-benzofuran-1,3-dione Chemical compound C1=C2C(=O)OC(=O)C2=CC(C(C=2C=C3C(=O)OC(=O)C3=CC=2)=O)=C1 VQVIHDPBMFABCQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 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
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 2
- 239000002033 PVDF binder Substances 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- 239000012752 auxiliary agent Substances 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 2
- 150000004985 diamines Chemical class 0.000 claims description 2
- XRWMGCFJVKDVMD-UHFFFAOYSA-M didodecyl(dimethyl)azanium;bromide Chemical compound [Br-].CCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCC XRWMGCFJVKDVMD-UHFFFAOYSA-M 0.000 claims description 2
- PSLWZOIUBRXAQW-UHFFFAOYSA-M dimethyl(dioctadecyl)azanium;bromide Chemical compound [Br-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCCCCCCCC PSLWZOIUBRXAQW-UHFFFAOYSA-M 0.000 claims description 2
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 2
- 229940060296 dodecylbenzenesulfonic acid Drugs 0.000 claims description 2
- XJWSAJYUBXQQDR-UHFFFAOYSA-M dodecyltrimethylammonium bromide Chemical compound [Br-].CCCCCCCCCCCC[N+](C)(C)C XJWSAJYUBXQQDR-UHFFFAOYSA-M 0.000 claims description 2
- 229940018564 m-phenylenediamine Drugs 0.000 claims description 2
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- -1 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 2
- ZIWRUEGECALFST-UHFFFAOYSA-M sodium 4-(4-dodecoxysulfonylphenoxy)benzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCOS(=O)(=O)c1ccc(Oc2ccc(cc2)S([O-])(=O)=O)cc1 ZIWRUEGECALFST-UHFFFAOYSA-M 0.000 claims description 2
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 2
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 2
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 2
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 2
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 2
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 claims description 2
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 claims description 2
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 2
- 229960001124 trientine Drugs 0.000 claims description 2
- 239000008096 xylene Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 229920002799 BoPET Polymers 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 2
- 229920003123 carboxymethyl cellulose sodium Polymers 0.000 description 2
- 229940063834 carboxymethylcellulose sodium Drugs 0.000 description 2
- 239000011231 conductive filler Substances 0.000 description 2
- 238000009775 high-speed stirring Methods 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001721 carbon Chemical class 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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- 238000001000 micrograph Methods 0.000 description 1
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- 239000007787 solid Substances 0.000 description 1
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
Abstract
The invention discloses a preparation method and application of a carbon nanofiber functional coating. The carbon nanofiber functional coating is mainly composed of 1-30% of carbon nanofibers, 10-50% of resin, 10-70% of solvent and 1-10% of other additives in percentage by mass. Firstly, uniformly stirring raw material carbon nanofiber, a dispersing agent and a solvent by adopting a high-speed shearing, high-speed grinding or high-pressure homogenizing method, then adding resin and other additives, uniformly stirring and mixing, and uniformly mixing to obtain the carbon nanofiber functional coating. The nano carbon fiber functional coating can be applied to the fields of heating and heat dissipation, corrosion resistance, static resistance and electromagnetic shielding; when in application, the product is coated on various base materials by adopting screen printing, spray coating, spin coating, extrusion coating or micro-concave coating. The technical scheme of the invention has the advantages of simple preparation, easy operation, long service life, high product purity and good repeatability, and is suitable for the requirement of expanded production.
Description
The technical field is as follows:
the invention belongs to the technical field of coatings, and particularly relates to a preparation method and application of a nano carbon material functional coating.
Secondly, background art:
the conductive paint is a novel functional paint, which is a functional paint coated on a non-conductive substrate to ensure that the non-conductive substrate has certain current conduction and charge dissipation capabilities. The conductive coating is popular among people due to the characteristics of low manufacturing cost, simple process, easy realization of automation and the like. The conductive coating is widely applied to the aspects of heating, electromagnetic wave shielding, static resistance, building industry and the like.
The filler of the conductive coating can be classified into metal series, carbon series, metal oxide and composite conductive filler. Among them, carbon fillers are increasingly regarded by people for their advantages of stable performance, low density, uneasy sedimentation, good corrosion resistance, wide sources, low price, etc. In recent decades, carbon-based conductive coatings have been widely used in various fields, and the excellent electrical and thermal conductivity of the carbon-based conductive coatings is a focus of attention of researchers at the present stage. The conductive coating is rapidly developed, and meanwhile, the requirements on the conductive coating are gradually improved, so that the conductive coating is required to have excellent conductivity, weather resistance, wear resistance, corrosion resistance, temperature change resistance and the like. Compared with carbon materials such as graphite powder, carbon black, common carbon nanotubes and the like, the carbon nanofibers prepared by the chemical vapor deposition method have excellent qualities such as corrosion resistance, high strength, high temperature resistance and the like, have very high graphitization degree, the graphitization degree can reach more than 70%, the products have few lattice defects, excellent conductivity and good thermal stability, and the critical volume fraction of a conductive channel formed by the carbon nanofibers is low due to the special geometrical shape of the carbon nanofibers, namely the carbon nanofibers can have good conductivity under the condition of small addition amount; can be widely applied to the fields of shielding, heating, heat dissipation, static resistance and the like.
Thirdly, the invention content:
the technical problem to be solved by the invention is as follows: according to the existing development condition of the conductive coating, the invention provides a preparation method and application of a novel carbon nanofiber functional coating. The preparation method of the technical scheme of the invention has the advantages of simplicity, easy operation, long service life, high product purity and good repeatability, and is suitable for the requirement of expanded production.
In order to solve the problems, the invention adopts the technical scheme that:
the invention provides a carbon nanofiber functional coating which is mainly composed of 1-30% of carbon nanofibers, 10-50% of resin, 10-70% of solvent and 1-10% of other additives in percentage by mass.
According to the carbon nanofiber functional coating, the diameter of the carbon nanofibers is 50-200 nm, the length of the carbon nanofibers is 5-200 microns, the graphitization degree is more than 70%, and the purity of the carbon nanofibers is more than 99.9%.
According to the carbon nanofiber functional coating, the resin is at least one of polyurethane resin, polyester resin, acrylic resin, epoxy resin, polyimide resin, phenolic resin and sodium silicate.
According to the carbon nanofiber functional coating, the solvent is at least one of deionized water, ethylene glycol, xylene, toluene, benzene, ethanol and isopropanol.
According to the carbon nanofiber functional coating, the other auxiliary agents are composed of a thickening agent, a dispersing agent and a curing agent, and the mass ratio of the thickening agent to the dispersing agent to the curing agent is 1-3: 1-3: 1 to 4.
According to the carbon nanofiber functional coating, the thickener is at least one of sodium carboxymethyl cellulose, bentonite, polyacrylic acid thickener and polyurethane thickener; the dispersing agent is at least one of sodium dodecyl sulfate, sodium dodecyl sulfonate, sodium dodecyl benzene sulfonate, dodecyl benzene sulfonic acid, sodium dodecyl diphenyl ether disulfonate, dodecyl trimethyl ammonium bromide, hexadecyl trimethyl ammonium bromide, didodecyl dimethyl ammonium bromide, dioctadecyl dimethyl ammonium bromide, polyvinyl alcohol, polyethylene glycol, polyacrylamide, polyvinylpyrrolidone, polyvinylidene fluoride, polytetrafluoroethylene, polyoxyethylene ether and sodium hexametaphosphate; the curing agent is at least one of ethylenediamine, hexamethylenediamine, diethylenetriamine, triethylene tetramine, tetraethylenepentamine, diamine methylcyclohexane, m-phenylenediamine, benzophenone tetracarboxylic dianhydride, isocyanate, pyridine, methyl ethyl ketone peroxide, cyclohexanone peroxide and benzoyl peroxide.
According to the carbon nanofiber functional coating, the carbon nanofiber functional coating is prepared by the following method:
weighing various raw materials according to the proportion of the carbon nanofiber functional coating, uniformly stirring the weighed carbon nanofibers, the dispersing agent and the solvent by adopting a high-speed shearing, high-speed grinding or high-pressure homogenizing method, then adding resin and other additives, uniformly stirring and mixing, and uniformly mixing to obtain the carbon nanofiber functional coating.
In addition, the application of the carbon nanofiber functional coating in the fields of heating, heat dissipation, corrosion prevention, static resistance and electromagnetic shielding is provided.
According to the application of the carbon nanofiber functional coating in the fields of heating and heat dissipation, corrosion prevention, static resistance and electromagnetic shielding, in the application process, the carbon nanofiber functional coating is coated on various substrates in a screen printing, spraying, spin coating, extrusion coating or micro-concave coating mode.
In the technical scheme of the invention, the nano carbon fiber with high graphitization degree is used as the filler, so that the nano carbon fiber has the characteristics of low resistivity, good conductivity, good dispersibility and the like; the adopted resin is at least one of polyurethane resin, acrylic resin, polyester resin, epoxy resin, polyimide resin, phenolic resin and sodium silicate, and has outstanding weather resistance.
The invention has the following positive beneficial effects:
1. according to the technical scheme, the nano carbon fiber is used as the conductive filler, due to the ultrahigh graphitization degree, the product purity is high, the product has excellent physical and chemical properties, ultralow resistivity and ultrahigh stability, the attenuation of the functional coating prepared by using the product is reduced, the prepared heating coating is tested for 10000 hours, the attenuation is less than 3%, the service life is long, and the requirements of expanded production are met.
2. The preparation method of the technical scheme of the invention has the advantages of simplicity, easy operation, long service life, high product purity and good repeatability, and is suitable for the requirement of expanded production.
3. The carbon nanofiber functional coating prepared by the technical scheme of the invention can be coated on various base materials to be made into coatings, and can be applied to the technical fields of heat dissipation, corrosion prevention, heating, electromagnetic shielding and the like.
Fourthly, explanation of the attached drawings:
FIG. 1 is a SEM image of a carbon nanofiber used in the present invention.
FIG. 2 is a scanning electron microscope image of the aqueous carbon nanofiber functional coating prepared in example 1 of the present invention.
FIG. 3 is a graph showing the electromagnetic shielding effectiveness of the aqueous carbon nanofiber functional coating prepared in example 4 of the present invention.
The fifth embodiment is as follows:
the invention is further illustrated by the following examples, which do not limit the scope of the invention.
The diameter of the carbon nanofibers used in the following examples is 50-200 nm, the length is 5-200 μm, the graphitization degree is greater than 70%, the purity is greater than 99.9%, and the SEM image thereof is shown in FIG. 1.
Example 1:
the invention relates to a carbon nanofiber functional coating which is composed of 50g of carbon nanofibers, 500g of water-based polyester resin (solid content is 34%), 934g of solvent deionized water, 10g of dispersant polyvinylpyrrolidone, 10g of thickener carboxymethylcellulose sodium and 20g of curing agent methyl ethyl ketone peroxide.
Example 2:
the invention relates to a carbon nanofiber functional coating which is composed of 100g of carbon nanofibers, 500g of water-based acrylic resin, 934g of solvent deionized water, 20g of dispersant sodium dodecyl sulfate, 20g of polyacrylic acid thickening agent and 20g of curing agent isocyanate.
Example 3:
the invention relates to a carbon nanofiber functional coating which is composed of 150g of carbon nanofibers, 500g of water-based epoxy resin, 934g of solvent deionized water, 20g of dispersant polyoxyethylene ether, 30g of thickener carboxymethylcellulose sodium and 20g of curing agent ethylenediamine.
Example 4:
the invention relates to a carbon nanofiber functional coating which is composed of 200g of carbon nanofibers, 500g of acrylic resin, 934g of solvent ethylene glycol, 30g of dispersant polyvinylpyrrolidone, 20g of polyacrylic acid thickening agent and 20g of curing agent isocyanate.
Example 5:
embodiment 1 of the invention the preparation method of the carbon nanofiber functional coating comprises the following steps:
weighing various raw materials according to the proportion of the carbon nanofiber functional coating in the embodiment 1, uniformly stirring and mixing the weighed carbon nanofibers, solvent deionized water and a dispersing agent by using a high-speed shearing machine, then adding resin, a thickening agent and a curing agent, uniformly mixing by using a high-speed stirring machine, and uniformly mixing to obtain the carbon nanofiber functional coating (the viscosity of the obtained coating is 6500mPa & s).
Example 6:
embodiment 2 of the invention the preparation method of the carbon nanofiber functional coating comprises the following steps:
weighing various raw materials according to the proportion of the carbon nanofiber functional coating in the embodiment 2, uniformly mixing the weighed carbon nanofibers, solvent deionized water and dispersing agent by adopting a high-speed grinding machine, adding resin, thickening agent and curing agent, uniformly mixing by using a high-speed mixer, and uniformly mixing to obtain the carbon nanofiber functional coating (the viscosity of the obtained coating is 8600mPa & s).
Example 7:
embodiment 3 of the invention the preparation method of the carbon nanofiber functional coating comprises the following steps:
weighing various raw materials according to the proportion of the carbon nanofiber functional coating in the embodiment 3, uniformly stirring and mixing the weighed carbon nanofibers, solvent deionized water and dispersing agent by using a high-pressure homogenizer, adding resin, a thickening agent and a curing agent, uniformly mixing by using a high-speed stirrer, and uniformly mixing to obtain the carbon nanofiber functional coating (the viscosity of the obtained coating is 8600mPa & s).
Example 8:
embodiment 4 of the invention, the preparation method of the carbon nanofiber functional coating comprises the following steps:
weighing various raw materials according to the proportion of the carbon nanofiber functional coating in the embodiment 4, uniformly mixing the weighed carbon nanofibers, the solvent glycol and the dispersing agent by adopting a high-speed shearing machine, adding the resin, the thickening agent and the curing agent, uniformly mixing by using a high-speed stirring machine, and uniformly mixing to obtain the carbon nanofiber functional coating (the viscosity of the obtained coating is 10000mPa & s).
The application examples of the carbon nanofiber functional coating in the fields of heating and heat dissipation, corrosion prevention, static resistance and electromagnetic shielding are as follows:
application example 1:
the carbon nanofiber functional coating prepared in the embodiment 1 of the invention is coated on a PET film, the coating thickness is 100 μm, the PET film is baked for 3min at 120 ℃, the surface resistance is 150 Ω/□, the length and width are 1m x 1m, and after 220V is electrified, the temperature can reach 60 ℃, and an SEM (scanning electron microscope) chart is tested, and is shown in figure 2.
Application example 2:
the carbon nanofiber functional coating prepared in the embodiment 2 of the invention is coated on a PET film, the coating thickness is 100 micrometers, the PET film is baked for 3min at 120 ℃, the surface resistance is 100 omega/□, the length and width are 1m x 1m, and the temperature can reach 85 ℃ after 220V is electrified.
Application example 3:
the carbon nanofiber functional coating prepared in the embodiment 3 of the invention is coated on a PET film, the coating thickness is 100 μm, the coating is baked for 3min at 120 ℃, the surface resistance is 80 omega/□, and the thermal conductivity is 2W/(m.K) through testing.
Application example 4:
the carbon nanofiber functional coating prepared in the embodiment 4 of the invention is coated on a PET film, the coating thickness is 100 μm, the PET film is baked for 3min at 120 ℃, the surface resistance is 10 omega/□, and the shielding effectiveness is tested: at frequencies of 0-2700Hz, the shielding effectiveness is at most-31 dB (see figure 3 for details).
Claims (9)
1. A carbon nanofiber functional coating is characterized in that: the carbon nanofiber functional coating is mainly composed of 1-30% of carbon nanofibers, 10-50% of resin, 10-70% of solvent and 1-10% of other additives in percentage by mass.
2. The carbon nanofiber functional coating as claimed in claim 1, wherein: the diameter of the nano carbon fiber is 50-200 nm, the length of the nano carbon fiber is 5-200 mu m, the graphitization degree is more than 70%, and the purity is more than 99.9%.
3. The carbon nanofiber functional coating as claimed in claim 1, wherein: the resin is at least one of polyurethane resin, polyester resin, acrylic resin, epoxy resin, polyimide resin, phenolic resin and sodium silicate.
4. The carbon nanofiber functional coating as claimed in claim 1, wherein: the solvent is at least one of deionized water, ethylene glycol, xylene, toluene, benzene, ethanol and isopropanol.
5. The carbon nanofiber functional coating as claimed in claim 1, wherein: the other auxiliary agents are composed of a thickening agent, a dispersing agent and a curing agent, and the mass ratio of the thickening agent to the dispersing agent to the curing agent is 1-3: 1-3: 1 to 4.
6. The carbon nanofiber functional coating as claimed in claim 5, wherein: the thickening agent is at least one of sodium carboxymethyl cellulose, bentonite, polyacrylic acid thickening agent and polyurethane thickening agent; the dispersing agent is at least one of sodium dodecyl sulfate, sodium dodecyl sulfonate, sodium dodecyl benzene sulfonate, dodecyl benzene sulfonic acid, sodium dodecyl diphenyl ether disulfonate, dodecyl trimethyl ammonium bromide, hexadecyl trimethyl ammonium bromide, didodecyl dimethyl ammonium bromide, dioctadecyl dimethyl ammonium bromide, polyvinyl alcohol, polyethylene glycol, polyacrylamide, polyvinylpyrrolidone, polyvinylidene fluoride, polytetrafluoroethylene, polyoxyethylene ether and sodium hexametaphosphate; the curing agent is at least one of ethylenediamine, hexamethylenediamine, diethylenetriamine, triethylene tetramine, tetraethylenepentamine, diamine methylcyclohexane, m-phenylenediamine, benzophenone tetracarboxylic dianhydride, isocyanate, pyridine, methyl ethyl ketone peroxide, cyclohexanone peroxide and benzoyl peroxide.
7. The carbon nanofiber functional coating as claimed in claim 1, wherein the carbon nanofiber functional coating is prepared by the following method:
weighing various raw materials according to the proportion of the carbon nanofiber functional coating as claimed in claim 1, uniformly stirring the weighed carbon nanofibers, the dispersing agent and the solvent by adopting a high-speed shearing, high-speed grinding or high-pressure homogenizing method, then adding resin and other additives, uniformly stirring and mixing, and uniformly mixing to obtain the carbon nanofiber functional coating.
8. The carbon nanofiber functional coating as claimed in claim 1 is applied to the fields of heating, heat dissipation, corrosion prevention, static resistance and electromagnetic shielding.
9. The application of the carbon nanofiber functional coating in the fields of heat dissipation, corrosion prevention, static resistance and electromagnetic shielding, as claimed in claim 8, wherein in the application process, the product carbon nanofiber functional coating is coated on various substrates by adopting screen printing, spray coating, spin coating, extrusion coating or micro-concave coating.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105349013A (en) * | 2015-11-26 | 2016-02-24 | 苏州天脉导热科技有限公司 | Nano carbon paste and preparation method thereof |
| CN112646489A (en) * | 2020-12-22 | 2021-04-13 | 松山湖材料实验室 | Conductive coating and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105349013A (en) * | 2015-11-26 | 2016-02-24 | 苏州天脉导热科技有限公司 | Nano carbon paste and preparation method thereof |
| CN112646489A (en) * | 2020-12-22 | 2021-04-13 | 松山湖材料实验室 | Conductive coating and preparation method thereof |
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