WO2022247248A1 - 一种用于电子标签的天线结构、制备方法以及电子标签 - Google Patents
一种用于电子标签的天线结构、制备方法以及电子标签 Download PDFInfo
- Publication number
- WO2022247248A1 WO2022247248A1 PCT/CN2021/139458 CN2021139458W WO2022247248A1 WO 2022247248 A1 WO2022247248 A1 WO 2022247248A1 CN 2021139458 W CN2021139458 W CN 2021139458W WO 2022247248 A1 WO2022247248 A1 WO 2022247248A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- graphite
- graphite paper
- composite material
- paper
- antenna
- Prior art date
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 34
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 385
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 367
- 239000010439 graphite Substances 0.000 claims abstract description 367
- 239000002131 composite material Substances 0.000 claims abstract description 133
- 239000000463 material Substances 0.000 claims abstract description 73
- 238000000034 method Methods 0.000 claims abstract description 50
- 239000000123 paper Substances 0.000 claims description 229
- 239000010410 layer Substances 0.000 claims description 95
- 238000005520 cutting process Methods 0.000 claims description 77
- 239000011241 protective layer Substances 0.000 claims description 74
- 239000000758 substrate Substances 0.000 claims description 27
- 238000010030 laminating Methods 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- 239000007770 graphite material Substances 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 8
- 238000005868 electrolysis reaction Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000003490 calendering Methods 0.000 claims description 6
- 239000003575 carbonaceous material Substances 0.000 claims description 6
- 238000003698 laser cutting Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 6
- 239000012790 adhesive layer Substances 0.000 claims description 5
- 229910010293 ceramic material Inorganic materials 0.000 claims description 5
- 229920006254 polymer film Polymers 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 229910021383 artificial graphite Inorganic materials 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 18
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 239000000976 ink Substances 0.000 description 14
- 239000000203 mixture Substances 0.000 description 12
- 239000003292 glue Substances 0.000 description 11
- 229910021389 graphene Inorganic materials 0.000 description 11
- 239000004744 fabric Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 8
- 238000003475 lamination Methods 0.000 description 8
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 238000005530 etching Methods 0.000 description 6
- 238000005098 hot rolling Methods 0.000 description 6
- -1 polyethylene terephthalate Polymers 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000001723 curing Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- 229920006264 polyurethane film Polymers 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 238000007650 screen-printing Methods 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000011086 glassine Substances 0.000 description 2
- 238000007646 gravure printing Methods 0.000 description 2
- 238000013007 heat curing Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 238000007641 inkjet printing Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 2
- 239000012286 potassium permanganate Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000000992 sputter etching Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229940117975 chromium trioxide Drugs 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N chromium trioxide Inorganic materials O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- GAMDZJFZMJECOS-UHFFFAOYSA-N chromium(6+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Cr+6] GAMDZJFZMJECOS-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052574 oxide ceramic Inorganic materials 0.000 description 1
- 239000011224 oxide ceramic Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920005574 polyvinylidene vinyl fluoride Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
- C01B32/21—After-treatment
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
- C01B32/21—After-treatment
- C01B32/22—Intercalation
- C01B32/225—Expansion; Exfoliation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/364—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor
- H01Q1/368—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor using carbon or carbon composite
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
Definitions
- the present invention relates to but not limited to the technical field of radio frequency identification, and particularly relates to but not limited to an antenna structure for an electronic tag, a preparation method and the electronic tag.
- Radio frequency identification technology is a non-contact automatic data collection technology and one of the core technologies of the Internet of Things. Its biggest feature is that the information collection speed is fast, no mechanical or optical contact is required, and it is completely completed through wireless communication technology. It can simultaneously collect hundreds of thousands of object information within one second, and the accuracy of information collection is high. At present, this technology has been used in logistics warehousing, transportation, security and anti-counterfeiting, mobile payment and other fields, but the main bottleneck limiting its popularization and application is the price, size and environmental adaptability of the label.
- the commonly used electronic tag antenna materials are copper, aluminum, silver paste or conductive ink.
- the commonly used preparation methods include etching, inkjet printing, chemical plating, electroplating, hot stamping, screen and gravure printing, etc. .
- the mainstream etching method requires a strong acid solution to corrode the unprotected metal layer and a strong alkali solution to remove the protective layer, which has problems such as large pollution, serious waste, limited carrier and high cost; for the conductive silver paste screen printing process, The material cost is too high, and the price of conductive silver paste ranges from 360 yuan per kilogram to tens of thousands of yuan.
- the main purpose of the present invention is to provide an antenna structure for an electronic tag and a preparation method thereof, so as to solve problems in the prior art such as complex antenna manufacturing process, low manufacturing efficiency, high cost, polluted environment, and limited application fields.
- an antenna structure for an electronic tag has an antenna conductive layer, and the antenna conductive layer includes at least one layer of graphite paper or graphite Paper composites.
- the graphite paper is one or more of flexible graphite paper, ultra-thin graphite paper, thermally conductive graphite paper, graphite paper roll or graphite paper sheet;
- the graphite paper composite material is graphite paper and carbon material, Composites of metallic or ceramic materials.
- the thickness of the graphite paper or graphite paper composite material is 5 ⁇ m-500 ⁇ m.
- the thickness of the graphite paper or graphite paper composite material is 5 ⁇ m-30 ⁇ m.
- the antenna structure further includes a protective layer, and the protective layer is laminated and connected with the graphite paper or graphite paper composite material of the conductive layer of the antenna.
- the shape of the conductive layer of the antenna is obtained by die-cutting or semi-die-cutting after laminating graphite paper or graphite paper composite material and the protective layer.
- the antenna structure also includes a substrate, the conductive antenna layer is arranged on the substrate, the conductive antenna layer is bonded to the substrate through an adhesive layer, and the conductive antenna layer is shaped by The graphite paper or the graphite paper composite material and the protective layer are laminated and pasted on the base material for half-die-cutting.
- the antenna structure further includes a third layer of carrier disposed on the protective layer, and the third layer of carrier is an insulating polymer film material.
- the present application provides a method for preparing an electronic tag antenna structure, including:
- the graphite paper or the graphite paper composite material is laminated with the protective layer to obtain the graphite composite film;
- the graphite composite film is back-adhesed on the surface of the substrate to obtain a high-conductivity graphite film
- the high-conductivity graphite film is processed to obtain the antenna structure of the electronic tag;
- the method further includes the step of cutting and shaping the conductive layer, and the cutting and shaping methods specifically include laser cutting, flame cutting, manual cutting or die cutting;
- the implementation process of the step of cutting and forming the conductive layer is to directly cut the graphite paper or the graphite paper composite material, or cut after the graphite paper or the graphite paper composite material is laminated with the protective layer, or place the graphite composite film on the The surface of the substrate is back glued and then cut.
- the processing of the high-conductivity graphite film includes attaching a third layer of carrier on the surface of the high-conductivity graphite film.
- the cutting method of cutting and forming the conductive layer is specifically die-cutting, and the steps specifically include:
- the die-cutting step specifically includes:
- said laminating graphite paper or graphite paper composite material with protective layer comprises:
- the graphite paper or the graphite paper composite material and the protective layer are hot-rolled by a roller press machine, so that the graphite paper or the graphite paper composite material and the protective layer are laminated, wherein the temperature of the upper mold of the roller press is 25-400 ° C, The temperature of the lower mold is 25-400°C.
- the step of laminating the graphite paper or graphite paper composite material with the protective layer it also includes: preparing graphite paper or graphite paper composite material, and the prepared graphite paper or graphite paper composite material has a controlled thickness of 5 ⁇ m -30 ⁇ m.
- the preparation of graphite paper or graphite paper composite material comprises:
- the graphite paper raw material is pretreated to obtain expandable graphite, and then expanded and calendered at a preset expansion temperature to prepare graphite paper or graphite paper composite material;
- the graphite material is one or more composites of natural flake graphite, pyrolytic graphite, artificial graphite, and graphite oxide; wherein, the expansion temperature is 200-1000°C.
- said graphite paper raw material is made expandable graphite through pretreatment and comprises:
- the raw materials of graphite paper are mixed, washed with water and dried after mixing to obtain expandable graphite;
- the calendering specifically includes carrying out rolling treatment for a preset number of times, and the preset number of times is 3-5 times.
- the mixing treatment specifically includes: mixing the graphite material and the reaction compound and then stirring at a preset reaction temperature; wherein the preset reaction temperature is 20-50°C; and the stirring time is 60min-90min.
- the mixing treatment is: immersing the graphite material in a reaction solution with a preset ratio, and performing electrolysis treatment under a constant current, wherein the electrolysis time is 2h-3h.
- an electronic tag including the aforementioned antenna structure or the antenna structure manufactured by the aforementioned manufacturing method.
- the present invention selects the tag antenna made of graphite paper material, which overcomes the problem of insufficient electrical conductivity caused by conductive ink and film materials, and the manufacturing process is simpler.
- the square resistance of the tag antenna made by the present invention is much smaller than that of the carbon paste antenna.
- This application changes the composition of the original traditional electronic tag antenna, and uses graphite paper material to make the antenna conductive layer of the tag antenna structure, which overcomes the insufficient conductivity of the antenna caused by conductive ink and film materials, and The manufacturing process is simpler, and the square resistance of the tag antenna manufactured by the present invention is much smaller than that of the carbon paste antenna.
- composition and structure of the present application are simple, and the preparation of the antenna tag on the basis of obtaining the graphite paper material only requires the processes of lamination, cutting and pasting, the preparation is simple and environmentally friendly.
- the die-cutting mold can cut out the shape of the conductive layer of the antenna in this application through the preset cutting thickness and shape, which can conveniently and stably obtain the shape of the required conductive layer without damaging the fragile graphite paper material;
- the thickness of graphite paper or graphite paper composite material can be better controlled in the process of preparing graphite paper or graphite paper composite material, and the structure of the generated graphite paper is clear and stable.
- Fig. 1 (a), (b) is the scanning electron microscope figure of graphite paper material of the present invention
- Fig. 2 (a) is the structural representation of the graphite composite membrane that obtains after half-die-cutting of the embodiment of the present invention
- Fig. 2 (b) is the schematic structural view of the conductive layer of the antenna obtained after the cutting of graphite paper or graphite paper composite material according to the embodiment of the present invention
- Fig. 3 is a schematic diagram of the structure of an electronic tag antenna without a third-layer carrier in an embodiment of the present invention
- Fig. 4 is a schematic diagram of the structure of the electronic tag antenna including the third layer carrier according to the embodiment of the present invention.
- the antenna structure has an antenna conductive layer, and the antenna conductive layer includes at least one layer of graphite paper or graphite paper composite material.
- graphite paper is often used as a heat dissipation material for notebook computers, flat panel displays, digital cameras, mobile phones and personal assistants, but those skilled in the art have not considered using it as an antenna structure on electronic tags
- the conductive layer is mainly limited in that methods such as etching, inkjet printing, electroless plating, electroplating, hot stamping, screen and gravure printing have been commonly used in the prior art to prepare wires for electronic labels, but the present application Among them, an independent and complete layer of graphite paper is used as a part of the conductive layer of the antenna, which can be combined with other layers in the electronic label to form an electronic label. Compared with the production process of the prior art, the cost is lower , and more environmentally friendly and easier to process.
- the price of aluminum etching antenna labels on the market ranges from 0.1 yuan to a few yuan
- the price of conductive ink ranges from 180 yuan/kg to several thousand yuan
- the price of conductive silver paste ranges from 360 yuan/kg to tens of thousands of yuan.
- the price of the graphite paper antenna of the present invention can be reduced to less than 0.1 yuan, which greatly reduces the price of the electronic label.
- the electronic tag finally prepared has a lower resistance value of the tag antenna prepared by the present invention, and the manufactured RFID tag antenna has good electrical performance, and can meet the working requirements of low frequency, high frequency, ultrahigh frequency and microwave frequency bands. .
- the type of graphite paper can be selected as the following: graphite paper is one or more of flexible graphite paper, ultra-thin graphite paper, thermally conductive graphite paper, graphite paper roll or graphite paper sheet ;
- graphite paper composite material is the compound that is made by graphite paper and carbon material, metal material or ceramic material; Described carbon material is graphite sheet, graphite plate or carbon powder; Described metal material is metal plate or Metal powder; the ceramic material is oxide ceramics, nitride ceramics, carbide ceramics or boride ceramics.
- the graphite paper or the graphite paper composite material has a thickness of 5 ⁇ m-500 ⁇ m, even more preferably 5 ⁇ m-30 ⁇ m.
- Common graphite paper generally has a thickness of about 1mm, and is mainly used as a heat dissipation layer for electronic equipment; in this application, graphite paper with a special size and thickness is considered to be used as a component of the conductive layer of the electronic label. After testing, it has outstanding conductivity. , and is easier to process than the existing production process, and can be made into antennas of different sizes and shapes. Compared with traditional linear antennas with the same width, it can effectively shorten the length of the antenna, reduce the amount of materials used, and further reduce costs.
- the thickness of graphite paper or graphite paper composite material is 5 ⁇ m-30 ⁇ m.
- this application adopts a special process, and the production site is more suitable for the thickness of graphite paper materials for electronic tags. For details, please refer to the following text describe.
- the antenna structure further includes a protective layer, and the protective layer is laminated and connected with the graphite paper or the graphite paper composite material of the conductive layer of the antenna.
- the protective layer not only realizes the protection of the conductive layer, but also takes into account the thinner and fragile graphite paper material in this embodiment, the protective layer can prevent the graphite paper or the graphite paper composite from breaking, and can be more stable to the Graphite paper material for processing.
- the protective layer is selected from one of polymer film material, paper and fabric.
- the shape of the conductive layer of the antenna is obtained by die-cutting or semi-die-cutting after laminating graphite paper or graphite paper composite material and the protective layer. Due to the fragile nature of the material and the thinness of the electronic label in this embodiment, the graphite paper can be laminated first and then die-cut. Preset cutting thickness and shape, cutting out the die-cutting shape of the conductive layer of the antenna in this application, but not cutting the protective layer.
- reference numeral 1 is the conductive layer 1 of the antenna formed after die-cutting
- reference numeral 2 is the protective layer 2 .
- the protective layer and the graphite paper or the graphite paper composite material can also be die-cut together, and the protective layer can also protect the fragile graphite paper material from being damaged during the die-cutting process. Destruction will occur.
- the present application also includes a base material, on which the conductive antenna layer is disposed, and the conductive antenna layer is bonded to the base material through the adhesive layer 3 .
- a base material on which the conductive antenna layer is disposed, and the conductive antenna layer is bonded to the base material through the adhesive layer 3 .
- FIG. 3 it includes an antenna conductive layer 1 , a protective layer 2 , an adhesive layer 3 and a substrate 4 .
- the conductive layer of the antenna can also be half-die-cut after being attached to the substrate.
- the shape of the conductive layer of the antenna is made of graphite paper or graphite paper composite material and the protective layer and then attached to the substrate for half-molding. Cutting is made, so that the shape of the half-die-cut protective layer is consistent with that of the conductive layer of the antenna, and the base material is not cut off.
- a third layer of carrier can also be included.
- the third layer of carrier can also be placed on the protective layer and then die-cut together in half to achieve a one-time forming.
- the protective layer and the substrate are independently selected from one of polymer film materials, paper, and fabrics.
- the polymer film material is selected from but not limited to polyethylene terephthalate, polybutylene terephthalate, polyimide, polyvinyl chloride, polyethylene, polystyrene, polypropylene, polyvinylidene Vinyl fluoride, ethylene-vinyl acetate copolymer, polycarbonate, polyurethane, polyamide or polytetrafluoroethylene.
- the paper material is selected from but not limited to natural fiber paper, synthetic fiber paper, composite paper, glassine paper, silicone oil paper, coated paper or coated paper.
- the fabric is selected from, but not limited to, knitted, knitted, woven or nonwoven.
- the protective layer 2 is arranged on the antenna conductive layer 1; the antenna conductive layer 1 is arranged on the substrate 4 through the adhesive layer 3 ;
- the third layer carrier 5 is set on the protective layer 2, so that the conductive circuit of the antenna can further improve the flexibility of the antenna on the basis of ensuring the working performance.
- the third-layer carrier can choose whether to use it according to the actual protection requirements.
- this application has changed the composition of the original traditional electronic tag antenna, and selected graphite paper materials that are not easy to think of by those skilled in the art to make the tag antenna, which overcomes the problems caused by conductive ink and film materials. Insufficient electrical conductivity, and the manufacturing process is simpler. In addition, the square resistance of the tag antenna manufactured by the present invention is much smaller than that of the carbon paste antenna.
- the RFID tag antenna of the present invention selects graphite paper material, which belongs to carbon material like graphite and graphene. Compared with copper, aluminum, silver and other metal antennas, it can save costs, be environmentally friendly, and can improve corrosion resistance; in the prior art Generally, graphite and graphene conductive inks are used to print antenna RFID tags. This method will be affected by many factors such as the type of conductive material, particle size, shape, filling amount, dispersion state, type of adhesive, and curing time. During the printing process, It will encounter phenomena such as incomplete drying and increased ink resistance caused by thin printing thickness, resulting in its conductivity usually being 100 times worse than that of graphite paper materials, which cannot meet the conductivity requirements of RFID tag antennas.
- the present invention selects the tag antenna made of graphite paper material, which overcomes the problem of insufficient electrical conductivity caused by conductive ink and film materials, and the manufacturing process is simpler.
- the square resistance of the tag antenna made by the present invention is much smaller than that of the carbon paste antenna.
- the price of aluminum etching antenna labels on the market ranges from 0.1 yuan to a few yuan
- the price of conductive ink ranges from 180 yuan/kg to several thousand yuan
- the price of conductive silver paste ranges from 360 yuan/kg to tens of thousands of yuan.
- the price of the graphite paper antenna of the present invention can be reduced to less than 0.1 yuan, which greatly reduces the price of the electronic label.
- the composition and structure of the present application are simple, and the preparation of the antenna tag on the basis of the graphite paper material only needs the processes of lamination, die-cutting and pasting, the preparation is simple and environmentally friendly.
- a preparation method for preparing an antenna structure including:
- said graphite paper or graphite paper composite material and protective layer are clad include:
- the graphite paper or the graphite paper composite material and the protective layer are hot-rolled by a roller press machine, so that the graphite paper or the graphite paper composite material and the protective layer are laminated, wherein the temperature of the upper mold of the roller press is 25-400 °C, The temperature of the lower mold is 25-400°C, preferably, the temperature of the upper mold of the roller press is 70-120°C, and the temperature of the lower mold is 70-120°C;
- the adhesive of the back adhesive is any one or more of water-based coating adhesives, oil-based coating adhesives, and hot-melt pressure-sensitive adhesives.
- epoxy resin glue polyurethane glue
- acrylic resin glue polyvinylidene fluoride resin glue
- chlorinated rubber polyacrylate glue
- hot melt glue e.g., epoxy resin glue, polyurethane glue, acrylic resin glue, polyvinylidene fluoride resin glue, chlorinated rubber, polyacrylate glue, and hot melt glue.
- the treatment of the high-conductivity graphite film may include attaching a third layer of carrier on the surface of the high-conductivity graphite film, or attaching other related layered structures according to requirements, or it may be a process of finishing the whole Way.
- a step of cutting and shaping the conductive layer is also included, and the cutting and shaping methods specifically include laser cutting, flame cutting, manual cutting, arc cutting or die cutting;
- the implementation process of the cutting and forming step of the conductive layer can be selected according to the requirements of the sequence of actual operation steps as follows:
- the cutting method of cutting and forming the conductive layer is specifically die-cutting, and the steps specifically include:
- the protective layer After laminating the graphite paper or the graphite paper composite material with the protective layer, die-cutting the graphite paper or the graphite paper composite material laminated on the protective layer according to a preset shape to obtain a protective layer and graphite paper of the same shape, or Half-die-cut the graphite paper or graphite paper composite material on the protective layer according to the preset shape, retain the protective layer and cut off part of the graphite paper or graphite paper composite material to obtain a graphite composite film; the protective layer not only realizes the conductive Layer protection, and considering the thinner and fragile graphite paper material in this embodiment, the protective layer can prevent the graphite paper or graphite paper composite material from fragmenting, and the graphite paper material can be processed more stably.
- the cutting method of cutting and forming the conductive layer is specifically die-cutting, and the step of die-cutting may also be carried out after the step of obtaining a high-conductivity graphite film or attaching a third layer of carrier on the surface of the high-conductivity graphite film
- the graphite paper or graphite paper composite material attached to the surface of the substrate is semi-die-cut according to a preset shape to obtain a protective layer and graphite paper of the same shape, and the substrate is not cut off.
- This cutting method is more stable and can be cut and shaped at one time.
- the third-layer carrier can be placed on the protective layer and then half-die-cut together to realize one-time molding.
- the preparation of the antenna label on the basis of the obtained graphite paper material only requires the processes of lamination, die-cutting and pasting, and the preparation is simple and environmentally friendly.
- the acquisition process of graphite paper material needs to pay attention to control the thickness so that it conforms to the size of the conductive layer of the electronic antenna structure. Due to the fragility of the graphite paper and its thinness in the electronic label in this embodiment, it can be laminated or laminated and then cut into shape, preferably die-cutting, to laminate the protective layer.
- the graphite paper or graphite paper composite material on and/or glued on the substrate is die-cut or semi-die-cut according to the preset shape, that is, the die-cutting mold conducts the antenna in this application through the preset cutting thickness and shape.
- the die-cut shape cuts out the layers, but does not cut away the material that needs to be retained.
- the required shape of the conductive layer can be obtained conveniently and stably, and the problems in the prior art such as complex antenna manufacturing process, low manufacturing efficiency, high cost, polluted environment, and limited application field are solved.
- the present application further provides an electronic tag, which includes the foregoing antenna structure or the antenna structure manufactured by the foregoing preparation method.
- step S1 the step of preparing graphite paper or graphite paper composite material in step S1 is further defined, specifically,
- Preparation of graphite paper or graphite paper composite material includes:
- the graphite paper raw material is pretreated to obtain expandable graphite, and then expanded and calendered at a preset expansion temperature to prepare graphite paper or graphite paper composite material;
- the graphite material is one or more composites of natural flake graphite, pyrolytic graphite, artificial graphite, and graphite oxide; wherein, the expansion temperature is 200-1000°C.
- Pretreatment of graphite paper raw materials to prepare expandable graphite includes:
- the raw materials of graphite paper are mixed, washed with water and dried after mixing to obtain expandable graphite;
- the mixing process is: mixing the graphite material and the reaction compound and then stirring at the preset reaction temperature; wherein the preset reaction temperature is 20-50°C; the stirring time is 60min-90min;
- the mixing treatment is: immerse the graphite material in the reaction solution with a preset ratio, and perform electrolysis treatment under a constant current, wherein the electrolysis time is 2h-3h;
- Calendering specifically includes carrying out rolling treatment for a preset number of times, and the preset number of times is 3-5 times.
- the graphite paper composite material has several more processes than graphite paper, and the graphite paper composite material is prepared by co-processing graphite paper with carbon materials, metal materials or ceramic materials after the graphite paper is prepared.
- the thickness of graphite paper or graphite paper composite material can be better controlled in the process of preparing graphite paper or graphite paper composite material, and the graphite paper structure of generation is clear and stable, can refer to accompanying drawing 1 (a) of the present application , (b), so that the generated graphite paper can better meet the needs of the electronic tag antenna.
- step S2 of laminating the graphite paper or the graphite paper composite material with the protective layer specifically includes: laminating the graphite paper or the graphite paper composite material with the protective layer includes:
- the graphite paper or the graphite paper composite material and the protective layer are hot-rolled by a roller press machine, so that the graphite paper or the graphite paper composite material and the protective layer are laminated, wherein the temperature of the upper mold of the roller press is 25-400 ° C, The temperature of the lower mold is 25-400°C.
- the temperature of the upper and lower molds of the roller press is selected according to the material and thickness of the graphite paper and the protective layer.
- the finally obtained square resistance of the conductive layer of the tag antenna is 10 m ⁇ sq -1 .
- the finally obtained square resistance of the conductive layer of the tag antenna is 8m ⁇ sq ⁇ 1 .
- the finally obtained square resistance of the conductive layer of the tag antenna is 12 m ⁇ sq -1 .
- Embodiment 8 is a diagrammatic representation of Embodiment 8
- the square resistance of the conductive layer of the tag antenna finally prepared was 15 m ⁇ sq -1 .
- the square resistance of the conductive layer of the tag antenna finally prepared is 20 m ⁇ sq ⁇ 1 .
- the finally obtained square resistance of the conductive layer of the tag antenna is 1 m ⁇ sq ⁇ 1 .
- a comparative example provides an RFID tag antenna
- the antenna conductive layer material is mainly composed of graphene conductive ink
- the preparation method is mainly to print the graphene conductive ink on the substrate, heat curing, 80 °C drying for 3h, after curing RFID
- the square resistance of the conductive layer of the antenna is 2000m ⁇ sq ⁇ 1 .
- a comparative example provides an RFID tag antenna, the conductive layer material of which is mainly composed of conductive silver paste, and its preparation method is mainly to print the conductive silver paste on the substrate, heat-cure, and dry at 80°C for 5 minutes. After curing, the RFID tag antenna The square resistance of the conductive layer was 15 m ⁇ sq-1.
- composition and structure of the present application are simple, and the preparation of the antenna tag on the basis of obtaining the graphite paper material only requires the processes of lamination, cutting and pasting, the preparation is simple and environmentally friendly.
- the thickness of graphite paper or graphite paper composite material can be better controlled in the process of preparing graphite paper or graphite paper composite material, and the structure of the generated graphite paper is clear and stable.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Laminated Bodies (AREA)
Abstract
本发明公开了一种用于电子标签的天线结构、制备方法以及电子标签，所述天线结构具有天线导电层，所述天线导电层至少包括一层石墨纸或石墨纸复合材料。本发明选用石墨纸材料制作标签天线结构的导电层，具有低成本、易于加工和对环境友好的优势，且能提高天线的耐腐蚀性能，解决了现有技术中工艺制程复杂、制造效率低、成本高、污染环境、应用领域受限等问题。
Description
本发明涉及但不限于射频识别技术领域，特别涉及但不限于一种用于电子标签的天线结构、制备方法以及电子标签。
无线射频识别技术是一种非接触式数据自动采集技术，也是物联网的核心技术之一。其最大特点是信息采集速度快，不需要机械或光学接触，完全通过无线通信技术完成，在1秒钟内能够同时采集数百上千个物体信息，信息采集准确率高。目前该技术已在物流仓储、交通运输、安全防伪、移动支付等领域得到使用，但限制其普及应用的主要瓶颈是标签的价格、尺寸和环境适应性。
目前常用的电子标签的天线材质是铜、铝、银浆或导电油墨，常用的制备方法包括蚀刻法、喷墨打印法、化学镀法、电镀法、烫印法、丝网和凹版印刷法等。其中，主流的蚀刻法需要强酸溶液腐蚀未保护的金属层以及强碱溶液去除保护层，存在污染大、浪费严重、载体受限大和成本较高等问题；对于导电银浆丝网印刷工艺而言，其材料成本过高，导电银浆的价格从每公斤360元到上万元不等。
近年来，研究发现石墨烯材料具有微观拓扑结构，使之具备高导电性能，将石墨烯复合导电浆料或导电油墨，通过印刷天线方法制作的电子标签是替代传统蚀刻法的优选方案。但现有石墨烯复合导电浆料或导电油墨的导电性能会被导电材料种类、粒子大小、形状、填充量、分散状态、黏合剂种类以及固化时间等诸多因素影响，导致其导电性较差，无法满足电子标签天线的导电性要求。另外也有研究者预先制备设定天线图案的掩膜层，通过离子刻蚀石墨烯薄膜的方式，将 掩膜层图案转移至目标基材上，再经过后续处理得到石墨烯天线。这种基于模板的制备方法不仅操作繁琐，成本高昂，而且生产周期长，图形转移过程易产生污染与缺陷。
发明内容
本发明的主要目的在于提供一种用于电子标签的天线结构及其制备方法，以解决现有技术中的天线工艺制程复杂、制造效率低、成本高、污染环境、应用领域受限等问题。
为了实现上述目的，根据本发明的第一个方面，提供了一种用于电子标签的天线结构，具体为所述天线结构具有天线导电层，所述天线导电层至少包括一层石墨纸或石墨纸复合材料。
进一步地，所述石墨纸为柔性石墨纸、超薄石墨纸、导热石墨纸、石墨纸卷材或石墨纸板材中的一种或几种；所述石墨纸复合材料为石墨纸与碳材料、金属材料或陶瓷材料的复合物。
进一步地，所述石墨纸或石墨纸复合材料厚度为5μm-500μm。
进一步地，所述石墨纸或石墨纸复合材料厚度为5μm-30μm。
进一步地，所述天线结构还包括保护层，所述保护层与天线导电层的石墨纸或石墨纸复合材料覆合连接。
进一步地，所述天线导电层的形状由石墨纸或石墨纸复合材料与所述保护层通过覆合后进行模切或半模切制得。
进一步地，所述天线结构还包括基材，所述天线导电层设置在所述基材上，所述天线导电层与所述基材通过背胶层粘合，所述天线导电层的形状由石墨纸或石墨纸复合材料与所述保护层通过覆合后贴设在所述基材上进行半模切制得。
进一步地，所述天线结构还包括第三层载体，设置在保护层上，所述第三层载体为绝缘高分子膜材料。
第二方面，本申请提供一种电子标签天线结构的制备方法，包括：
将石墨纸或石墨纸复合材料与保护层进行覆合，得到石墨复合膜；
将石墨复合膜在基材表面进行背胶，得到高电导率石墨膜；
对高电导率石墨膜进行处理，得到电子标签天线结构；
其中，所述方法还包括对导电层切割成型步骤，所述切割成型的切割方式具体包括激光切割、火焰切割、手动切割或模切；
所述对导电层切割成型步骤的实施过程为直接对石墨纸或石墨纸复合材料进行切割，或在将石墨纸或石墨纸复合材料与保护层进行覆合后切割，或在将石墨复合膜在基材表面进行背胶后切割。
进一步地，所述对高电导率石墨膜进行处理包括，在高电导率石墨膜表面附上第三层载体。
进一步地，所述对导电层切割成型的切割方式具体为模切，步骤具体包括：
在将石墨纸或石墨纸复合材料与保护层进行覆合后，对覆合在保护层上的石墨纸或石墨纸复合材料根据预设形状进行模切得到相同形状的保护层和石墨纸，或对覆合在保护层上的石墨纸或石墨纸复合材料根据预设形状进行半模切，保留保护层并且切除部分石墨纸或石墨纸复合材料，得到石墨复合膜；
或，所述模切成型步骤具体包括：
在得到高电导率石墨膜或在高电导率石墨膜表面附上第三层载体步骤后，对贴设在基材表面的石墨纸或石墨纸复合材料根据预设形状进行半模切得到相同形状的保护层和石墨纸，保留基材不被切除。
进一步地，所述将石墨纸或石墨纸复合材料与保护层进行覆合包括：
将石墨纸或石墨纸复合材料与保护层采用对辊辊压机热辊压处 理，使得石墨纸或石墨纸复合材料与保护层覆合，其中，辊压机上模温度为25～400℃，下模温度为25～400℃。
进一步地，所述将石墨纸或石墨纸复合材料与保护层进行覆合的步骤之前还包括：制备石墨纸或石墨纸复合材料，制备的所述石墨纸或石墨纸复合材料控制的厚度为5μm-30μm。
进一步地，所述制备石墨纸或石墨纸复合材料包括：
将石墨纸原料通过预处理制得可膨胀石墨，再经过预设的膨胀温度下进行膨胀、压延制备成石墨纸或石墨纸复合材料；
其中，石墨材料为天然鳞片石墨、热解石墨、人造石墨、氧化石墨中的一种或几种复合；其中，所述膨胀温度为200-1000℃。
进一步地，所述将石墨纸原料通过预处理制得可膨胀石墨包括：
将石墨纸原料进行混合处理，经过混合处理后进行水洗和干燥，得到可膨胀石墨；
所述压延具体包括进行预设次数的辊压处理，所述预设次数为3-5次。
进一步地，所述混合处理具体为：将石墨材料与反应化合物混合后在预设反应温度下搅拌；其中预设反应温度为20-50℃；搅拌时间为60min-90min。
进一步地，所述混合处理为：将石墨材料浸在预设配比的反应溶液中，在恒定电流下进行电解处理，其中电解的时间为2h-3h。
第三方面，提供一种电子标签，包括前述的天线结构或前述制备方法制得的天线结构。
本发明选用石墨纸材料制作的标签天线，克服了导电油墨和薄膜类材料制作天线带来的导电性不足问题，且制作工艺更简单，另外本发明制作的标签天线方块电阻远小于碳浆天线。
综上，本发明的有益技术效果如下：
(1)本申请改变了原有传统的电子标签天线的构成，选用石墨纸材料来制作标签天线结构的天线导电层，克服了导电油墨和薄膜类材料制作天线带来的导电性不足问题，且制作工艺更简单，另外本发明制作的标签天线方块电阻远小于碳浆天线。
(2)并且由于本申请的组成结构简单，且在获得石墨纸材料的基础上制备天线标签只需要覆合、切割和黏贴等过程，制备构成简单环保。
(3)对覆合在保护层上和/或者粘设在基材上的石墨纸或石墨纸复合材料根据预设形状进行模切或半模切，通过先覆合或者粘合后模切的方式，模切模具通过预设的切割厚度和形状，把本申请中的天线导电层的形状切出来，可以方便且稳定地获取需要的导电层的形状且不会破坏易碎的石墨纸材料；
(4)通过本申请的石墨纸的生成方法，可以在制备石墨纸或石墨纸复合材料过程中更好地控制石墨纸或石墨纸复合材料的厚度，并且生成的石墨纸结构清晰稳定。
图1(a)、(b)为本发明石墨纸材料的扫描电镜图；
图2(a)为本发明实施例半模切后得到的石墨复合膜的结构示意图；
图2(b)为本发明实施例对石墨纸或者石墨纸复合材料切割成型后得到的天线导电层的结构示意图；
图3为本发明实施例的中不含第三层载体的电子标签天线结构示意图；
图4为本发明实施例的中包含第三层载体的电子标签天线结构 示意图。
为使本申请的目的、技术方案和优点更加清楚明白，下面将结合附图对本申请的实施例进行详细说明，需要说明的是，在不冲突的情况下，本申请中的实施例中的特征可以相互任意组合。
实施例1：
根据本发明实施例的一种用于电子标签的天线结构，天线结构具有天线导电层，天线导电层至少包括一层石墨纸或石墨纸复合材料。
现有技术中，石墨纸常作为应用于笔记本电脑、平板显示器、数码摄像机、移动电话及针对个人的助理设备的散热材料，而本领域技术人员并未考虑过将其作为电子标签上的天线结构的导电层，主要局限在于现有技术中已经惯用蚀刻法、喷墨打印法、化学镀法、电镀法、烫印法、丝网和凹版印刷法等方法来制备电子标签的导线，而本申请中，采用了独立完整的一层石墨纸作为天线导电层的一部分，可以配合电子标签中的其它层的贴合或者覆合来最终形成电子标签，相比于现有技术的制作过程成本更低，且更加环保和更易加工。
目前，市面上的铝蚀刻天线标签价格从0.1元到几元不等，导电油墨的价格从180元/kg到几千元不等，导电银浆的价格从360元/kg到上万元不等，本发明的石墨纸天线价格可降至0.1元以内，这大大降低了电子标签的价格。并且最终制备得到的电子标签相比碳浆天线，本发明制得的标签天线阻值更低，制作的RFID标签天线电性能好，可满足低频、高频、超高频和微波频段的工作要求。
具体地，本实施例中，石墨纸的类型可以选择为以下几种：石墨纸为柔性石墨纸、超薄石墨纸、导热石墨纸、石墨纸卷材或石墨纸板材中的一种或几种；其中，石墨纸复合材料是由石墨纸与碳材料、金 属材料或陶瓷材料共同处理制得的复合物；所述碳材料为石墨片、石墨板或碳粉；所述金属材料为金属板或金属粉；所述陶瓷材料为氧化物陶瓷、氮化物陶瓷、碳化物陶瓷或硼化物陶瓷。
进一步优选地，本实施例中，石墨纸或石墨纸复合材料厚度为5μm-500μm，更进一步优选地为5μm-30μm。常见的石墨纸一般厚度大概在1mm左右，并且主要作为电子设备的散热层；本申请中考虑选择特殊尺寸厚度的石墨纸作为电子标签的导电层的组成部分，经过测试，其具有突出的导电性能，并且相比于现有的制作过程更易加工，可以制作成不同大小、形状的天线，与传统的宽度一致的线形天线相比，既能有效缩短天线长度，可减少材料用量，进一步降低成本，还能增加天线宽度，减少工艺制作误差，提高成品率。优选地，石墨纸或石墨纸复合材料厚度为5μm-30μm，相比于市面常见的石墨纸材料，本申请中采用特殊的工艺，生产处更适合电子标签的石墨纸材料厚度，具体参见后文描述。
进一步地，本实施例中，天线结构还包括保护层，保护层与天线导电层的石墨纸或石墨纸复合材料覆合连接。保护层不仅实现了对导电层的保护，而且考虑到了本实施例中尺寸较薄并且易碎的石墨纸材料，保护层可以防止石墨纸或石墨纸复合材料的碎裂，并且可以更稳定地对石墨纸材料进行加工。其中，保护层选择自高分子膜材料、纸、织物中的一种。
具体地，本实施例中，天线导电层的形状由石墨纸或石墨纸复合材料与保护层通过覆合后进行模切或半模切制得。石墨纸由于其材质的易碎特性并且在本实施例中的电子标签中较薄，因此可以通过先覆合后模切的方式，并且当模切具体为半模切时，即模切模具通过预设的切割厚度和形状，把本申请中的天线导电层的模切形状切出来，但 不切除保护层。具体可以参见图2，其中附图标记1为模切后形成的天线导电层1，附图标记2为保护层2。在其他实施例中，也可以将保护层和石墨纸或石墨纸复合材料一同模切成型，在此过程中保护层也同样可以保护具有易碎特性的石墨纸材料在模切成型中不会发生破坏。
进一步地，本申请中还包括基材，天线导电层设置在基材上，天线导电层通过背胶层3与基材粘合。如图3所示，包括天线导电层1、保护层2、背胶层3和基材4。天线导电层也可以在贴设在基材后进行半模切成型，具体为天线导电层的形状由石墨纸或石墨纸复合材料与保护层通过覆合后贴设在基材上进行半模切制得，使得半模切后的保护层和天线导电层的形状一致，而保留基材不被切除。这样的切割方式更加稳定，且可以一次性切割成型。同样可选地，在其他实施例中，也可以包括第三层载体，当具有第三层载体时，也可以将第三层载体设置在保护层上以后再进行一同半模切，实现一次性成型。
本实施例中，可选地，保护层和基材各自独立选自高分子膜材料、纸、织物中的一种。
其中，高分子膜材料选自但不限于聚对苯二甲酸乙二酯、聚对苯二甲酸丁二酯、聚酰亚胺、聚氯乙烯、聚乙烯、聚苯乙烯、聚丙烯、聚偏氟乙烯、乙烯-醋酸乙烯共聚物、聚碳酸酯、聚氨酯、聚酰胺或聚四氟乙烯。
纸材料选自但不限于天然纤维纸、合成纤维纸、复合纸、格拉辛纸、硅油纸、涂布纸或淋膜纸。
织物选自但不限于编织物、针织物、机织物或无纺织物。
进一步优选丝绸布、绒布、牛津布、毛毡布、皮革。
另外，在另一种可选的实施例中，还可以保护含有第三层载体的 方案，保护层2设置在天线导电层1上；天线导电层1通过背胶层3设置在基材4上；第三层载体5设置在保护层2上，从而使天线的导电线路在保证工作性能的基础上，进一步提高天线的柔韧性。第三层载体根据实际保护需求来选择是否使用。
基于上述天线结构的构成，本申请改变了原有传统的电子标签天线的构成，选用本领域技术人员不容易想到的石墨纸材料来制作标签天线，克服了导电油墨和薄膜类材料制作天线带来的导电性不足问题，且制作工艺更简单，另外本发明制作的标签天线方块电阻远小于碳浆天线。
本发明的RFID标签天线选用石墨纸材料，与石墨、石墨烯同属碳材料，与铜、铝、银等金属天线相比，均可节约成本、环保，且能提高耐腐蚀性能；现有技术中一般将石墨、石墨烯导电油墨通过印刷天线方法RFID标签，该方法会因导电材料种类、粒子大小、形状、填充量、分散状态、黏合剂种类以及固化时间等诸多因素影响，在印刷过程中，会遇到烘干不完全、印刷厚度薄而引起的油墨电阻增大等现象，导致其导电性通常比石墨纸材料差100倍以上，无法满足RFID标签天线的导电性要求。另外也有预先制备设定天线图案的掩膜层，通过离子刻蚀石墨膜或石墨烯薄膜的方式，将掩膜层图案转移至目标基材上，再经过后续处理得到石墨烯天线。这种基于模板的制备方法不仅操作繁琐，成本高昂，而且生产周期长，图形转移过程易产生污染与缺陷。
本发明选用石墨纸材料制作的标签天线，克服了导电油墨和薄膜类材料制作天线带来的导电性不足问题，且制作工艺更简单，另外本发明制作的标签天线方块电阻远小于碳浆天线。
目前，市面上的铝蚀刻天线标签价格从0.1元到几元不等，导电 油墨的价格从180元/kg到几千元不等，导电银浆的价格从360元/kg到上万元不等，本发明的石墨纸天线价格可降至0.1元以内，这大大降低了电子标签的价格。并且由于本申请的组成结构简单，且在获得石墨纸材料的基础上制备天线标签只需要覆合、模切和黏贴等过程，制备构成简单环保。
实施例2：
本实施例中，提供一种用于制备天线结构的制备方法，包括：
S1：制备石墨纸或石墨纸复合材料，制备的石墨纸或石墨纸复合材料控制的厚度为5μm-30μm。
本实施例中，制备石墨纸或石墨纸复合材料的过程中需要对适合制作电子标签天线结构的石墨纸的厚度进行控制，也可以用已经制作完成的现有的符合尺寸的石墨纸或石墨纸复合材料进行下一步的制作过程，从而省去制备石墨纸或石墨纸复合材料步骤。
S2：将石墨纸或石墨纸复合材料与保护层进行覆合；得到石墨复合膜；
具体地，所述将石墨纸或石墨纸复合材料与保护层进行覆合包括：
将石墨纸或石墨纸复合材料与保护层采用对辊辊压机热辊压处理，使得石墨纸或石墨纸复合材料与保护层覆合，其中，辊压机上模温度为25～400℃，下模温度为25～400℃，优选地，辊压机上模温度为70～120℃，下模温度为70～120℃；
S3:将石墨复合膜在基材表面进行背胶，得到高电导率石墨膜；
其中，背胶的胶黏剂为水性涂层胶、油性涂层胶、热熔压敏胶中的任意一种或更多种。
进一步优选环氧树脂胶、聚氨酯胶、丙烯酸树脂胶、聚偏氟乙烯树脂胶、氯化橡胶、聚丙烯酸酯胶、热熔胶。
S4：对高电导率石墨膜进行处理，得到电子标签天线结构。具体地，对高电导率石墨膜进行处理可以包括在高电导率石墨膜表面附上第三层载体，或根据需求贴设其他相关层状结构的处理，也可以是对整体进行精加工的处理方式。
其中，在本实施例的制备方法中，还包括对导电层切割成型步骤，所述切割成型的切割方式具体包括激光切割、火焰切割、手动切割、电弧切割或模切；
其对导电层切割成型步骤的实施过程可以根据实际操作步骤顺序上的需求进行选择为：
直接对石墨纸或石墨纸复合材料进行切割，或在将石墨纸或石墨纸复合材料与保护层进行覆合后切割，或在将石墨复合膜在基材表面进行背胶后切割，或在对高电导率石墨膜进行处理后切割。
其中，直接对石墨纸或石墨纸复合材料进行切割，需要考虑石墨纸易碎特性，选择不容易破坏结构振动较小的切割方式；
优选地，所述对导电层切割成型的切割方式具体为模切，步骤具体包括：
在将石墨纸或石墨纸复合材料与保护层进行覆合后，对覆合在保护层上的石墨纸或石墨纸复合材料根据预设形状进行模切得到相同形状的保护层和石墨纸，或对覆合在保护层上的石墨纸或石墨纸复合材料根据预设形状进行半模切，保留保护层并且切除部分石墨纸或石墨纸复合材料，得到石墨复合膜；保护层不仅实现了对导电层的保护，而且考虑到了本实施例中尺寸较薄并且易碎的石墨纸材料，保护层可以防止石墨纸或石墨纸复合材料的碎裂，并且可以更稳定地对石墨纸材料进行加工。
其中，所述对导电层切割成型的切割方式具体为模切，也可以在 得到高电导率石墨膜或在高电导率石墨膜表面附上第三层载体步骤后在进行模切成型的步骤，具体为：对贴设在基材表面的石墨纸或石墨纸复合材料根据预设形状进行半模切得到相同形状的保护层和石墨纸，保留基材不被切除。这样的切割方式更加稳定，且可以一次性切割成型。当具有第三层载体时，可以将第三层载体设置在保护层上以后再进行一同半模切，实现一次性成型。
基于本申请的电子天线结构的构成，在制备过程中，在获得石墨纸材料的基础上制备天线标签只需要覆合、模切和黏贴等过程，制备构成简单环保。石墨纸材料的获取过程需要注意控制厚度，使其符合电子天线结构的导电层的尺寸。石墨纸由于其材质的易碎特性并且在本实施例中的电子标签中较薄，因此可以通过先覆合或贴合后切割成型的方式，具体优选为模切方式，对覆合在保护层上和/或者粘设在基材上的石墨纸或石墨纸复合材料根据预设形状进行模切或半模切，即模切模具通过预设的切割厚度和形状，把本申请中的天线导电层的模切形状切出来，但不切除需要保留的材料。可以方便且稳定地获取需要的导电层的形状，解决了现有技术中的天线工艺制程复杂、制造效率低、成本高、污染环境、应用领域受限等问题。
基于上述实施例，本申请还提供一种电子标签，电子标签包括前述的天线结构或前述制备方法制得的天线结构。
实施例3：
本实施例中，进一步地对步骤S1制备石墨纸或石墨纸复合材料的步骤进行了进一步地限定，具体地，
制备石墨纸或石墨纸复合材料包括：
将石墨纸原料通过预处理制得可膨胀石墨，再经过预设的膨胀温度下进行膨胀、压延制备成石墨纸或石墨纸复合材料；
其中，石墨材料为天然鳞片石墨、热解石墨、人造石墨、氧化石墨中的一种或几种复合；其中，膨胀温度为200-1000℃。
将石墨纸原料通过预处理制得可膨胀石墨包括：
将石墨纸原料进行混合处理，经过混合处理后进行水洗和干燥，得到可膨胀石墨；
其中，混合处理为：将石墨材料与反应化合物混合后在预设反应温度下搅拌；其中预设反应温度为20-50℃；搅拌时间为60min-90min；
或，混合处理为：将石墨材料浸在预设配比的反应溶液中，在恒定电流下进行电解处理，其中电解的时间为2h-3h；
压延具体包括进行预设次数的辊压处理，预设次数为3-5次。
上述方法步骤中，石墨纸复合材料相比于石墨纸会多几道工序，石墨纸复合材料为在制得石墨纸后，由石墨纸与碳材料、金属材料或陶瓷材料进行共同处理制备得到。
通过上述方法，可以在制备石墨纸或石墨纸复合材料过程中更好地控制石墨纸或石墨纸复合材料的厚度，并且生成的石墨纸结构清晰稳定，可以参见本申请的附图1(a)、(b)，从而使得生成的石墨纸可以更加符合电子标签天线的需求。
实施例4：
本实施例中，步骤S2将石墨纸或石墨纸复合材料与保护层进行覆合具体包括：将石墨纸或石墨纸复合材料与保护层进行覆合包括：
将石墨纸或石墨纸复合材料与保护层采用对辊辊压机热辊压处理，使得石墨纸或石墨纸复合材料与保护层覆合，其中，辊压机上模温度为25～400℃，下模温度为25～400℃。辊压机上下模的温度根据石墨纸和保护层的材料以及厚度来进行选择。
以下几个实施例将列举几种具体的材料选择和制备的具体环境 参数等，来结合最终获得的标签天线方块阻值来说明本申请的标签天线的突出的导电性能：
实施例5：
S1:将天然鳞片石墨、硝酸、乙酸酐、高锰酸钾按质量比为1：0.7：1.5:0.4均匀混合，在35℃下搅拌90min,水洗、干燥后得到无硫可膨胀石墨，在900℃下膨化，最后在室温下进行5次辊压，得到石墨纸材料；其中，本实施例制得的石墨纸材料的厚度为20μm；
S2:将石墨纸材料与PET膜采用对辊辊压机热辊压处理，辊压机上模温度为120℃，下模温度为120℃，覆合得到石墨复合膜；
S3：使用复合机将石墨复合膜和丝绸布通过聚酯胶复合，得到高电导率石墨膜；
S4:使用辊压机在高电导率石墨膜表面附上PE膜，半模切后得到RFID标签天线。
最终得到的标签天线导电层的方块阻值为10mΩ·sq
-1。
实施例6
S1:将天然鳞片石墨、高氯酸、高锰酸钾按质量比为1：3：0.4均匀混合，在室温下搅拌1h，水洗干燥后得到可膨胀石墨，在300℃下低温膨胀，最后在室温下进行3次辊压，得到石墨纸材料；本实施例制得的石墨纸材料的厚度为15μm；
S2:将石墨纸材料与聚氯乙烯膜采用对辊辊压机热辊压处理，辊压机上模温度为80℃，下模温度为80℃，覆合得到石墨复合膜；
S3:使用复合机将石墨复合膜和格拉辛纸通过热熔胶复合，得到高电导率石墨膜；
S4:使用辊压机在高电导率石墨膜表面附上聚氨酯膜，激光切割后得到RFID标签天线。
最终得到的标签天线导电层的方块阻值为8mΩ·sq
-1。
实施例7
S1:将10g天然鳞片石墨浸在硫酸与磷酸体积比为1:1的溶液中，固定电流0.3A，用不锈钢网做阳极集流器，阴阳极都用不锈钢板，电极板的有效面积约为20cm2，电解3h后水洗、抽滤、干燥后在900℃下膨胀，最后在室温下进行3次辊压，得到石墨纸材料；本实施例制得的石墨纸材料的厚度为30μm；
S2:将石墨纸材料与聚乙烯采用对辊辊压机热辊压处理，辊压机上模温度为110℃，下模温度为110℃，覆合得到石墨复合膜；
S3:使用复合机将石墨复合膜和毛毡布通过环氧树脂胶复合，得到高电导率石墨膜；
S4:使用辊压机在高电导率石墨膜表面附上聚氯乙烯膜，半模切后得到RFID标签天线。
最终得到的标签天线导电层的方块阻值为12mΩ·sq
-1。
实施例8：
S1:将人造石墨、重铬酸钾、硝酸、磷酸铵质量比为5：0.6:10:15均匀混合，在温度50℃下反应60min，水洗、干燥后得到无硫可膨胀石墨，在900℃下膨化，最后在室温下进行5次辊压，得到石墨纸材料；本实施例制得的石墨纸材料的厚度为10μm；
S2:将石墨纸材料与聚酰亚胺采用对辊辊压机热辊压处理，辊压机上模温度为260℃，下模温度为260℃，覆合得到石墨复合膜；
S3:使用复合机将石墨复合膜和纤维纸通过氯化橡胶复合，得到高电导率石墨膜；
S4:使用辊压机在高电导率石墨膜表面附上PET膜，激光切割后得到RFID标签天线。
最终制得的标签天线导电层的方块阻值为15mΩ·sq
-1。
实施例9
S1:将热解石墨、高氯酸、磷酸、乙酸酐和三氧化铬按质量比1:3:2.3:1.4:0.18混合均匀，在温度40℃下反应70min，水洗、干燥后得到无硫可膨胀石墨，在300℃下膨化，最后在室温下进行5次辊压，得到石墨纸材料；本实施例制得的石墨纸材料的厚度为30μm，
S2:将石墨纸材料与聚氨酯膜采用对辊辊压机热辊压处理，辊压机上模温度为120℃，下模温度为120℃，覆合得到石墨复合膜；
S3:使用复合机将石墨复合膜和涂布纸通过聚丙烯酸酯胶复合，得到高电导率石墨膜；
S4:使用辊压机在高电导率石墨膜表面附上聚氨酯膜，半模切后得到RFID标签天线。
最终制得的标签天线导电层的方块阻值为20mΩ·sq
-1。
实施例10：
S1:用200目不锈钢网盛装10g氧化石墨，阴阳两极采用不锈钢板，电极板的有效面积为20cm2，浸在体积比为1:1的硫酸与磷酸的混合溶液中，在20mA/cm2的恒定电流下电解3h后水洗、抽滤、干燥后在800℃下膨胀，最后在室温下进行3次辊压，得到石墨纸材料；本实施例制得的石墨纸材料的厚度为5μm；
S2:将石墨纸材料与聚酰胺膜采用对辊辊压机热辊压处理，辊压机上模温度为150℃，下模温度为150℃，覆合得到石墨复合膜；
S3:使用复合机将石墨复合膜和牛津布通过聚偏氟乙烯树脂胶复合，得到高电导率石墨膜；
S4:使用辊压机在高电导率石墨膜表面附上聚酰亚胺膜，激光切割后得到RFID标签天线。
最终得到的标签天线导电层的方块阻值为1mΩ·sq
-1。
对比例1
对比例提供一种RFID标签天线，其天线导电层材料主要由石墨烯导电油墨组成，其制备方法主要在于将石墨烯导电油墨印刷在基材上，经过热固化，80℃干燥3h，固化后RFID天线导电层的方块阻值为2000mΩ·sq
-1。
对比例2
对比例提供一种RFID标签天线，其天线导电层材料主要由导电银浆组成，其制备方法主要在于将导电银浆印刷在基材上，经过热固化，80℃干燥5min，固化后RFID标签天线导电层的方阻为15mΩ·sq-1。
通过上述实施例的具体内容和与对比例的分析可知，本申请的技术方案具有如下的有益效果：
(1)本申请改变了原有传统的电子标签天线的构成，选用本领域技术人员不容易想到的石墨纸材料来制作标签天线结构的天线导电层，克服了导电油墨和薄膜类材料制作天线带来的导电性不足问题，且制作工艺更简单，另外本发明制作的标签天线方块电阻远小于碳浆天线。
(2)并且由于本申请的组成结构简单，且在获得石墨纸材料的基础上制备天线标签只需要覆合、切割和黏贴等过程，制备构成简单环保。
(3)对覆合在保护层上和/或者粘设在基材上的石墨纸或石墨纸复合材料根据预设形状进行模切或半模切，通过先覆合或者粘合后模切的方式，并且模切具体为半模切，即模切模具通过预设的切割厚度和形状，把本申请中的天线导电层的模切形状切出来，但不切除保护 层。可以方便且稳定地获取需要的导电层的形状且不会破坏易碎的石墨纸材料；
(4)通过本申请的石墨纸的生成方法，可以在制备石墨纸或石墨纸复合材料过程中更好地控制石墨纸或石墨纸复合材料的厚度，并且生成的石墨纸结构清晰稳定。
以上所选实施例为典型具体实施方案，上述说明只是用于帮助理解本发明的方法及其核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以对本发明进行若干改进和修饰，这些改进和修饰也落入本发明权利要求的保护范围内。
Claims (18)
- 一种用于电子标签的天线结构，其特征在于，所述天线结构具有天线导电层，所述天线导电层至少包括一层石墨纸或石墨纸复合材料。
- 根据权利要求1所述的一种用于电子标签的天线结构，其特征在于，所述石墨纸为柔性石墨纸、超薄石墨纸、导热石墨纸、石墨纸卷材或石墨纸板材中的一种或几种；所述石墨纸复合材料为石墨纸与碳材料、金属材料或陶瓷材料的复合物。
- 根据权利要求1所述的一种用于电子标签的天线结构，其特征在于，所述石墨纸或石墨纸复合材料厚度为5μm-500μm。
- 根据权利要求3所述的一种用于电子标签的天线结构，其特征在于，所述石墨纸或石墨纸复合材料厚度为5μm-30μm。
- 根据权利要求1-4任一项所述的一种用于电子标签的天线结构，其特征在于，所述天线结构还包括保护层，所述保护层与天线导电层的石墨纸或石墨纸复合材料覆合连接。
- 根据权利要求5所述的一种用于电子标签的天线结构，其特征在于，所述天线导电层的形状由石墨纸或石墨纸复合材料与所述保护层通过覆合后进行模切或半模切制得。
- 根据权利要求5所述的一种电子标签天线结构，其特征在于，所述天线结构还包括基材，所述天线导电层设置在所述基材上，所述天线导电层与所述基材通过背胶层粘合，所述天线导电层的形状由石墨纸或石墨纸复合材料与所述保护层通过覆合后贴设在所述基材上进行半模切制得。
- 根据权利要求5所述的一种电子标签天线结构，其特征在于，所述天线结构还包括第三层载体，设置在保护层上，所述第三层载体 为绝缘高分子膜材料。
- 一种电子标签天线结构的制备方法，其特征在于，包括：将石墨纸或石墨纸复合材料与保护层进行覆合，得到石墨复合膜；将石墨复合膜在基材表面进行背胶，得到高电导率石墨膜；对高电导率石墨膜进行处理，得到电子标签天线结构；其中，所述方法还包括对导电层切割成型步骤，所述切割成型的切割方式具体包括激光切割、火焰切割、手动切割、电弧切割或模切；所述对导电层切割成型步骤的实施过程为直接对石墨纸或石墨纸复合材料进行切割，或在将石墨纸或石墨纸复合材料与保护层进行覆合后切割，或在将石墨复合膜在基材表面进行背胶后切割，或将对高导电率石墨膜进行处理后切割。
- 根据权利要求9所述的制备方法，其特征在于，所述对高电导率石墨膜进行处理包括，在高电导率石墨膜表面附上第三层载体。
- 根据权利要求9或10所述的制备方法，其特征在于，所述对导电层切割成型的切割方式具体为模切，步骤具体包括：在将石墨纸或石墨纸复合材料与保护层进行覆合后，对覆合在保护层上的石墨纸或石墨纸复合材料根据预设形状进行模切得到相同形状的保护层和石墨纸，或对覆合在保护层上的石墨纸或石墨纸复合材料根据预设形状进行半模切，保留保护层并且切除部分石墨纸或石墨纸复合材料，得到石墨复合膜；或，所述模切成型步骤具体包括：在得到高电导率石墨膜或在高电导率石墨膜表面附上第三层载体步骤后，对贴设在基材表面的石墨纸或石墨纸复合材料根据预设形状进行半模切得到相同形状的保护层和石墨纸，保留基材不被切除。
- 根据权利要求9所述的制备方法，其特征在于，所述将石墨纸或石墨纸复合材料与保护层进行覆合包括：将石墨纸或石墨纸复合材料与保护层采用对辊辊压机热辊压处理，使得石墨纸或石墨纸复合材料与保护层覆合，其中，辊压机上模温度为25～400℃，下模温度为25～400℃。
- 根据权利要求9所述的制备方法，其特征在于，所述将石墨纸或石墨纸复合材料与保护层进行覆合的步骤之前还包括：制备石墨纸或石墨纸复合材料，制备的所述石墨纸或石墨纸复合材料控制的厚度为5μm-30μm。
- 根据权利要求12所述的制备方法，其特征在于，所述制备石墨纸或石墨纸复合材料包括：将石墨纸原料通过预处理制得可膨胀石墨，再经过预设的膨胀温度下进行膨胀、压延制备成石墨纸或石墨纸复合材料；其中，石墨材料为天然鳞片石墨、热解石墨、人造石墨、氧化石墨中的一种或几种复合；其中，所述膨胀温度为200-1000℃。
- 根据权利要求14所述的制备方法，其特征在于，所述将石墨纸原料通过预处理制得可膨胀石墨包括：将石墨纸原料进行混合处理，经过混合处理后进行水洗和干燥，得到可膨胀石墨；所述压延具体包括进行预设次数的辊压处理，所述预设次数为3-5次。
- 根据权利要求15所述的制备方法，其特征在于，所述混合处理具体为：将石墨材料与反应化合物混合后在预设反应温度下搅拌；其中预设反应温度为20-50℃；搅拌时间为60min-90min。
- 根据权利要求15所述的制备方法，其特征在于，所述混合处理为：将石墨材料浸在预设配比的反应溶液中，在恒定电流下进行电解处理，其中电解的时间为2h-3h。
- 一种电子标签，其特征在于，包括如权利要求1-8任一项所述的天线结构或如权利要求9-17任一项所述的制备方法制得的天线结构。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110571602.2A CN113506974A (zh) | 2021-05-25 | 2021-05-25 | 一种用于电子标签的天线结构、制备方法以及电子标签 |
| CN202110571602.2 | 2021-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022247248A1 true WO2022247248A1 (zh) | 2022-12-01 |
Family
ID=78009356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2021/139458 WO2022247248A1 (zh) | 2021-05-25 | 2021-12-20 | 一种用于电子标签的天线结构、制备方法以及电子标签 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113506974A (zh) |
| WO (1) | WO2022247248A1 (zh) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113506974A (zh) * | 2021-05-25 | 2021-10-15 | 厦门凯纳石墨烯技术股份有限公司 | 一种用于电子标签的天线结构、制备方法以及电子标签 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB814310A (en) * | 1955-02-23 | 1959-06-03 | Werner Genest Ges Fur Isolieru | Improvements in or relating to highly active wide-band absorbers for short radio waves |
| CN104347944A (zh) * | 2014-11-05 | 2015-02-11 | 上海绿新包装材料科技股份有限公司 | 一种金属直镀rfid电子标签天线的制作方法 |
| CN107346447A (zh) * | 2017-09-05 | 2017-11-14 | 北京石墨烯研究院 | Nfc/rfid智能标签及其制造方法和应用 |
| CN111055552A (zh) * | 2019-06-08 | 2020-04-24 | 王雅静 | 一种高性能石墨烯膜的批量化制备方法、石墨烯膜及天线 |
| CN113506974A (zh) * | 2021-05-25 | 2021-10-15 | 厦门凯纳石墨烯技术股份有限公司 | 一种用于电子标签的天线结构、制备方法以及电子标签 |
| CN215816385U (zh) * | 2021-05-25 | 2022-02-11 | 厦门凯纳石墨烯技术股份有限公司 | 一种电子标签天线结构以及电子标签 |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2346305A1 (fr) * | 1976-03-31 | 1977-10-28 | Nippon Carbon Co Ltd | Composites de materiau graphitique oxyde et de materiau graphitique expanse |
| CN1041615C (zh) * | 1994-11-09 | 1999-01-13 | 中国科学院山西煤炭化学研究所 | 柔性石墨纸的制备方法 |
| JP4343297B2 (ja) * | 1998-11-30 | 2009-10-14 | リンテック株式会社 | Ｉｃカード用基板およびその製造方法 |
| US20050181275A1 (en) * | 2004-02-18 | 2005-08-18 | Jang Bor Z. | Open electrochemical cell, battery and functional device |
| JP2006295485A (ja) * | 2005-04-08 | 2006-10-26 | Maruai:Kk | 無線タグ用アンテナの製造方法及びその方法に用いる型抜切断接着具 |
| US7598876B2 (en) * | 2006-03-21 | 2009-10-06 | Stmicroelectronics Sa | Method for manufacturing a RFID electronic tag |
| CN101295811A (zh) * | 2007-04-23 | 2008-10-29 | 福州兆科智能卡有限公司 | 一种电子标签射频天线的制造方法 |
| JP5428339B2 (ja) * | 2007-10-26 | 2014-02-26 | 東レ株式会社 | 平面アンテナおよびその製造方法 |
| ES2735236T3 (es) * | 2010-06-14 | 2019-12-17 | Avery Dennison Corp | Método y aparato de fabricar etiquetas y marbetes de identificación por radiofrecuencia en tiradas cortas |
| CN104015468B (zh) * | 2014-06-17 | 2018-03-02 | 嘉兴中易碳素科技有限公司 | 石墨膜的生产方法 |
| CN104211051A (zh) * | 2014-08-25 | 2014-12-17 | 鸿纳（东莞）新材料科技有限公司 | 一种石墨烯复合材料及其制备方法 |
| CN104916832B (zh) * | 2015-07-09 | 2017-08-25 | 山西大学 | 一种高性能柔性负极材料的制备方法 |
| CN106520079B (zh) * | 2015-09-11 | 2020-05-08 | 徐海波 | 石墨烯导热膜及其制备方法 |
| ITUB20155495A1 (it) * | 2015-11-11 | 2017-05-11 | Consiglio Nazionale Ricerche | Dispositivo del tipo di una antenna, un riscaldatore, uno schermo elettromagnetico, e simili, processo di realizzazione di dispositivi del tipo di una antenna, un riscaldatore, uno schermo elettromagnetico, un'interconnessione elettrica e simili, semilavorato sostanzialmente laminare per la realizzazione di dispositivi del tipo di una antenna, un riscaldatore, uno schermo elettromagnetico, un'interconnessione elettrica, un circuito e simili. |
| US20170358400A1 (en) * | 2016-06-09 | 2017-12-14 | University Of Cincinnati | Graphene paper and a process for making graphene paper and a graphene electrode |
| JP6197133B1 (ja) * | 2017-02-03 | 2017-09-13 | 日本パッケージ・システム株式会社 | アンテナシートの製造方法及び非接触式ｉｃタグの製造方法 |
| JP7191444B2 (ja) * | 2017-12-28 | 2022-12-19 | 大阪シーリング印刷株式会社 | Ｒｆｉｄ用アンテナの製造方法、および、ｒｆｉｄインレットの製造方法 |
| CN110544818A (zh) * | 2018-05-29 | 2019-12-06 | 赖中平 | 制作射频识别标签的天线的导电墨水组合物及制造方法 |
| US20200002560A1 (en) * | 2018-06-29 | 2020-01-02 | Chung-Ping Lai | Conductive ink for use in manufacturing radio frequency identification (rfid) tag antenna and method for manufacturing rfid tag antenna |
| CN111004546A (zh) * | 2019-11-28 | 2020-04-14 | 华瑞墨石丹阳有限公司 | 一种石墨纳米片导电油墨及其制备方法和应用 |
-
2021
- 2021-05-25 CN CN202110571602.2A patent/CN113506974A/zh active Pending
- 2021-12-20 WO PCT/CN2021/139458 patent/WO2022247248A1/zh active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB814310A (en) * | 1955-02-23 | 1959-06-03 | Werner Genest Ges Fur Isolieru | Improvements in or relating to highly active wide-band absorbers for short radio waves |
| CN104347944A (zh) * | 2014-11-05 | 2015-02-11 | 上海绿新包装材料科技股份有限公司 | 一种金属直镀rfid电子标签天线的制作方法 |
| CN107346447A (zh) * | 2017-09-05 | 2017-11-14 | 北京石墨烯研究院 | Nfc/rfid智能标签及其制造方法和应用 |
| CN111055552A (zh) * | 2019-06-08 | 2020-04-24 | 王雅静 | 一种高性能石墨烯膜的批量化制备方法、石墨烯膜及天线 |
| CN113506974A (zh) * | 2021-05-25 | 2021-10-15 | 厦门凯纳石墨烯技术股份有限公司 | 一种用于电子标签的天线结构、制备方法以及电子标签 |
| CN215816385U (zh) * | 2021-05-25 | 2022-02-11 | 厦门凯纳石墨烯技术股份有限公司 | 一种电子标签天线结构以及电子标签 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113506974A (zh) | 2021-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4737348B2 (ja) | 透明導電層パターンの形成方法 | |
| CN104868244B (zh) | Rfid纸基铝天线的生产方法 | |
| US7448125B2 (en) | Method of producing RFID identification label | |
| WO2022247248A1 (zh) | 一种用于电子标签的天线结构、制备方法以及电子标签 | |
| CN111883855B (zh) | 一种全固态电芯及其制备方法和固态电池 | |
| JP2015511352A (ja) | 移転防止機能を有する脆弱な高周波ｒｆｉｄ電子タグ及びその製造方法 | |
| CN102110820B (zh) | 锌溴氧化还原液流电池正极电极及其制备 | |
| CN110767956B (zh) | 一种锂离子电池极片材料与集流体的剥离方法 | |
| CN101420064A (zh) | 一种射频识别标签天线的制备方法 | |
| CN107993747B (zh) | 一种透明导电膜、导电结构及其制备方法 | |
| WO2022155938A1 (zh) | 复合集流体、应用所述复合集流体的电池和电子装置 | |
| CN104584702A (zh) | 附可剥离铜箔的基板和制造电路板的方法 | |
| CN101609926A (zh) | 采用分体天线的超高频电子标签及其制造方法 | |
| CN104860307B (zh) | 一种石墨烯薄膜无损转移方法 | |
| CN215816385U (zh) | 一种电子标签天线结构以及电子标签 | |
| CN101482938A (zh) | 一种无线识别标签的制备方法及其使用的烫印专用膜 | |
| CN106297964A (zh) | 一种复合透明导电薄膜及其制备方法 | |
| CN111948865A (zh) | 一种含聚酰亚胺电致变色材料及器件的制备方法 | |
| CN102385999B (zh) | 一种染料敏化太阳能电池的柔性复合对电极及其制备方法 | |
| CN111814941A (zh) | 一种丝网印刷的nfc织物天线标签 | |
| WO2010137568A1 (ja) | 基材付孔あき金属箔、基材付孔あき金属箔の製造方法、孔あき金属箔及び孔あき金属箔の製造方法 | |
| CN112888097B (zh) | 一种发热膜及其制备方法 | |
| CN100504917C (zh) | 制造rfid天线的方法 | |
| CN107546326A (zh) | 低熔点金属电极型钙钛矿太阳能电池 | |
| CN114065892A (zh) | 一种环保rfid标签及其制造方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21942811 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 21942811 Country of ref document: EP Kind code of ref document: A1 |