CN109251591A - Electrically conductive ink, electronic tag, preparation method and radio-frequency recognition system - Google Patents
Electrically conductive ink, electronic tag, preparation method and radio-frequency recognition system Download PDFInfo
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- CN109251591A CN109251591A CN201811380030.4A CN201811380030A CN109251591A CN 109251591 A CN109251591 A CN 109251591A CN 201811380030 A CN201811380030 A CN 201811380030A CN 109251591 A CN109251591 A CN 109251591A
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- Prior art keywords
- electrically conductive
- electronic tag
- conductive ink
- optionally
- calcium carbonate
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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
- C09D11/00—Inks
- C09D11/52—Electrically conductive inks
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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
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
-
- 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
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/38—Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
Abstract
The present invention provides a kind of electrically conductive ink, electronic tag, preparation method and radio-frequency recognition system, belongs to technical field of RFID.Electrically conductive ink is used to prepare electronic tag, and electrically conductive ink includes conductive material, pearl filler and solvent.The preparation method of electronic tag, on a surface of substrate, coating electrically conductive ink forms conductive pattern, in the surface covering protection film of conductive pattern.Radio-frequency recognition system, including antenna, reader and electronic tag, antenna are used to receive the signal of electronic tag transmitting, and reader is electrically connected with antenna and obtains information for reading signal.This intelligent identifying system is able to solve the rock corrosivity of prior art technical problem unable to monitor, can effectively be monitored the corrosion condition of calcium carbonate in environment using electronic tag made from above-mentioned electrically conductive ink.
Description
Technical field
The present invention relates to technical field of RFID, in particular to a kind of electrically conductive ink, electronic tag, its preparation
Method and radio-frequency recognition system.
Background technique
Building and other historical relics in ocean historical relic, soil will form hole by when corrosion, in order to historical relic
Or building etc. is repaired, and coating can be filled up in hole, coating can corrode after the regular hour.
In the prior art, manually the corrosion of coating can only be monitored, does not can be carried out intellectual monitoring.
Summary of the invention
The purpose of the present invention is to provide a kind of electrically conductive ink, electronic tag, preparation method and radio-frequency recognition system, energy
The rock corrosivity of prior art technical problem unable to monitor is enough solved, the corrosion feelings of calcium carbonate in environment can be effectively monitored
Condition.
In a first aspect, being used to prepare electronic tag the embodiment of the invention provides a kind of electrically conductive ink, electrically conductive ink includes
Conductive material, pearl filler and solvent.
By the way that pearl filler is added in electrically conductive ink, the electronic tag prepared by electrically conductive ink is placed in containing rock
Environment in, when electronic tag is placed on rock in rock hole or around rock, the main component of rock is calcium carbonate,
In calcium carbonate weathering, CaCO3+H2O+CO2=Ca (HCO3)2Or dissolution of calcium carbonate CaCO3+ 2HCl=CaCl2+H2O+CO2↑
When, dissolution or weathering can also occur for the pearl filler in electrically conductive ink in electronic tag, so that electronic tag be made to send out
The signal penetrated generates variation, so as to monitor atmospheric disintegration of rocks or dissolution situation.
With reference to first aspect, in one possible implementation, pearl filler is selected from powdered whiting, lightweight carbonic acid
At least one of calcium, gel calcium carbonate, crystal calcium carbonate, modified calcium carbonate.
Contain calcium carbonate, can weathering perhaps dissolution thus detect atmospheric disintegration of rocks or dissolution situation.
With reference to first aspect, in one possible implementation, conductive material is selected from carbon-based material, metal material and leads
At least one of electric high molecular material.
It can be used as conductive filler, be used to prepare electrically conductive ink.
With reference to first aspect, in one possible implementation, carbon-based material be selected from graphene, graphene quantum dot,
At least one of graphene oxide, Graphene derivative, carbon nanotube, fullerene, electrically conductive graphite and carbon black;Metal material choosing
From at least one of gold, silver and copper;Conductive polymer material is in Polyglycolic acid fibre and poly styrene sulfonate
It is at least one.
Conductive effect can be played, to obtain electrically conductive ink.
With reference to first aspect, in one possible implementation, solvent includes water solvent and/or organic solvent;
Water solvent includes water and/or alcohols;Organic solvent is selected from acetone, terpinol, styrene-acrylic emulsion, N-Methyl pyrrolidone, first
At least one of etherified amino and 150# solvent naphtha.
Keep conductive filler and pearl filler evenly dispersed in a solvent, dispersion effect is good.
With reference to first aspect, in one possible implementation, electrically conductive ink further includes additive;Additive is selected from viscous
Tie at least one of agent, levelling agent, defoaming agent and coalescing agent;Binder is selected from polyurethane, acrylate and epoxy resin
At least one of;Levelling agent is selected from least one of olefin(e) acid class levelling agent, fluorine class levelling agent and organosilicon levelling agent;Defoaming
Agent includes organosiloxane and/or polyethers;Coalescing agent is in propandiol butyl ether, propylene glycol methyl ether acetate and alcohol ester 12
At least one.
The dispersion performance for further increasing electrically conductive ink makes the electronic tag finally obtained to calcium carbonate weathering or corrosion
It is more accurate to monitor.
Second aspect, the embodiment of the invention provides a kind of preparation methods of electronic tag, coat on a surface of substrate
Electrically conductive ink forms conductive pattern, in the surface covering protection film of conductive pattern.
Due to the setting of substrate and protective film, conductive pattern layer will not directly contact the rock around electronic tag, also
It is the air or hydrochloric acid that will not directly contact the external world, so, weathering needs a period of time, covers accordingly, due to protective film
Cover on the surface of conductive pattern, water, carbon dioxide, hydrochloric acid solution can the gap between protective film and substrate be immersed in conductive pattern
In case, so that the pearl filler in etching conductive pattern, makes the structure of conductive pattern change, so that electronic tag be made to send out
The signal penetrated changes, and the weathering and dissolution situation of the calcium carbonate of electronic tag can be monitored by external monitoring tool.
Correspondingly, also weathering and the dissolution of the rock around electronic tag, to monitor atmospheric disintegration of rocks around electronic tag and molten
Situation is solved, the corrosion condition of the calcium carbonate in environment is monitored.
In conjunction with second aspect, in one possible implementation, protective film is covered on the surface of substrate, and protective film with
Conductive pattern is located at the same side of substrate.
The inside of protective film and substrate is arranged in conductive pattern, and carbon dioxide, water and salt water can not directly contact conduction
Pattern after needing the regular hour, can enter the inside of electronic tag by the gap between protective film and substrate,
It is contacted with conductive pattern, the calcium carbonate in conductive pattern is corroded, thus to the corrosion feelings of the rock around electronic tag
Condition is monitored.
The third aspect, the embodiment of the invention provides a kind of electronic tag, by the preparation method of electronic tag be made.
The electronic tag being prepared by above-mentioned preparation method, place it in the surface of rock, the inside of rock or
Around rock, calcium carbonate in rock by prolonged corrosion, while also can etching electronic label conductive pattern, from
And make the transmitting signal weaker or unstable of electronic tag, it has been monitored at electronic tag while having monitored electronic tag signal
Calcium carbonate corrosion condition.
Fourth aspect, the embodiment of the invention provides a kind of radio-frequency recognition systems, including antenna, reader and electronics mark
Label, antenna are used to receive the signal of electronic tag transmitting, and reader is electrically connected with antenna and obtains information for reading signal.
When acid rain, seawater, carbon dioxide and water etc. penetrate into the interface between protective film and substrate, and and conductive pattern
Case contact, due to having certain pearl filler in the coating of conductive pattern, pearl filler can gradually suffer erosion, thus
The transmitting signal of electronic tag is set to change, the abnormal signal that antenna receives, the induced current of reader coil occurs different
Often, inductive signal dies down or unstable, illustrates that calcium carbonate herein is corroded.
In conjunction with fourth aspect, in one possible implementation, radio-frequency recognition system further includes computer system, is calculated
Machine system with reader for being electrically connected for handling and analyzing information.
The information at reader is analyzed by computer system processor, user obtains final calcium carbonate corrosion feelings
Condition, to be monitored to it.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings and also belong to protection scope of the present invention.
Fig. 1 is the cross-sectional view of RFID tag provided in an embodiment of the present invention.
Icon: 110- substrate;120- conductive pattern;130- protective film.
Specific embodiment
Radio frequency discrimination RFID (Radio Frequency Identification) is one kind of automatic identification technology, i.e., logical
It crosses wireless radio frequency mode and carries out non-contact, bidirectional data communication mode and target is identified.RFID technique has obtained at present
It is extensive to use, have been widely used for the numerous areas such as industrial automation and business automation, such as non-destructive testing, valuables
Management, product false proof, transport dispatching, entrance guard management, identification etc..
RFID system is generally made of the part such as RFID tag, reader and computer system.RFID technique it is basic
Working principle are as follows: reader sends the radiofrequency signal of certain frequency by antenna, when RFID tag enters Antenna Operation region
Induced current is generated, RFID tag obtains energy and is activated, and RFID tag passes through the information such as itself coding built in RFID tag
Antenna is sent, and the antenna being electrically connected with reader receives the radiofrequency signal that RFID tag is sent, and is sent to reader,
Reader carries out demodulation and decoding to the signal received and is then delivered to computer system progress relevant treatment;Computer system into
Row Correlation method for data processing and analysis obtain result.
In the prior art, ocean historical relic (as with special appearance and meaning ocean rock) or building or soil horizon
The usually manual detection of detection method of internal structure change cannot carry out real-time monitoring to its structure change.The present invention is real
It applies in example, the prison of structure change is mainly carried out to the rock article of the rock containing calcium carbonate, rock building or polishing
It surveys.
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, according to normal conditions or manufacturer builds
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
Electrically conductive ink is used to prepare electronic tag, namely for the electrically conductive ink for preparing RFID tag, electrically conductive ink packet
Include conductive material, pearl filler and solvent.
Wherein, pearl filler is selected from powdered whiting, precipitated calcium carbonate, gel calcium carbonate, crystal calcium carbonate, carbon modified
At least one of sour calcium.
Conductive material is selected from least one of carbon-based material, metal material and conductive polymer material;Optionally, carbon system
Material is selected from graphene, graphene quantum dot, graphene oxide, Graphene derivative, carbon nanotube, fullerene, electrically conductive graphite
At least one of with carbon black;Optionally, metal material is selected from least one of gold, silver and copper;Optionally, conducting polymer
Material is selected from least one of Polyglycolic acid fibre and poly styrene sulfonate.
Solvent includes water solvent and/or organic solvent;Optionally, water solvent includes water and/or alcohols;It is optional
Ground, organic solvent are selected from acetone, terpinol, styrene-acrylic emulsion, N-Methyl pyrrolidone, methyl-etherified amino and 150# solvent naphtha
At least one of.
Electrically conductive ink further includes additive;Optionally additive is in binder, levelling agent, defoaming agent and coalescing agent
At least one;Optionally, binder is selected from least one of polyurethane, acrylate and epoxy resin;Levelling agent is selected from
At least one of olefin(e) acid class levelling agent, fluorine class levelling agent and organosilicon levelling agent;Optionally, defoaming agent includes organosiloxane
And/or polyethers;Coalescing agent is selected from least one of propandiol butyl ether, propylene glycol methyl ether acetate and alcohol ester 12.
In the present embodiment, electrically conductive ink include the above-mentioned conductive material of 30-70 parts by weight, 20-40 parts by weight it is above-mentioned
The above-mentioned additive of solvent, the above-mentioned pearl filler of 5-15 parts by weight and 1-5 parts by weight.
By conductive material, solvent, pearl filler and additive is evenly dispersed is mixed to get electrically conductive ink.By conduction material
Material, solvent, pearl filler and additive according to above-mentioned proper proportion cooperate after, by ball milling or sand milling or three rollers grinding or
After ultrasonic disperse or high speed rotation, evenly dispersed liquefied mixture is obtained, is then filtered, quality inspection and packing, is led
Electric ink.
Above-mentioned electrically conductive ink can be used to prepare RFID tag.It under normal conditions, can when finding rock type historical relic
Can rock by certain erosion, to generate hole, staff can in hole filling paint, thus to historical relic
It is repaired, and during filling paint repairing, RFID tag is placed on to the inside of hole, when what is filled in hole
When coating is by destroying, external environment can corrode RFID tag, and the signal of RFID tag transmitting changes, to monitor
To coating by secondary erosion, to repair historical relic in time.
Correspondingly, the Cultural Relic Bureau of discovery not being etched can also place RFID tag, and external environment corrodes RFID tag
When, historical relic can be also corroded, when the signal of RFID tag transmitting changes, thus monitor that historical relic is destroyed,
To be protected in time to historical relic.
Fig. 1 is the structural schematic diagram of electronic tag, and the preparation method of electronic tag coats conductive on the surface of substrate 110
Ink forms conductive pattern 120, in the surface covering protection film 130 of conductive pattern 120.Optionally, protective film 130 is covered on lining
The surface at bottom 110, and protective film 130 and conductive pattern 120 are located at the same side of substrate 110.
It will by silk screen print method, ink jet printing method, gravure printing method, spin-coating method, spray coating method, roll coating process, knife coating etc.
Conductive ink application on the surface of substrate 110, then temperature be 100-200 DEG C (such as: 100 DEG C, 120 DEG C, 140 DEG C, 150
DEG C or 200 DEG C) under conditions of carry out heat cure obtain conductive pattern 120.Then temperature be 40-50 DEG C, pressure 0.2-
Under conditions of 30MPa, layer protecting film 130 is covered on the surface of conductive pattern 120.
Electronic tag is prepared by above-mentioned preparation method using above-mentioned electrically conductive ink.Wherein, the surface of substrate 110
Conductive pattern 120 is formed, the surface covering protection film 130 of conductive pattern 120 makes conductive pattern 120 be sandwiched in substrate 110 and protection
Between film 130.
Optionally, protective film 130 can be polythene PE, polypropylene PP or polyethylene terephtalate etc..It is right
Conductive pattern 120 in RFID tag carries out weak protection, that is to say, that and external environment will not be contacted directly with conductive pattern 120,
But after the erosion of certain time, carbon dioxide, acid rain, hydrochloric acid in external environment etc. can corrode conductive pattern 120.
Due to the setting of substrate 110 and protective film 130,120 layers of conductive pattern will not directly be contacted around electronic tag
Rock, that is, extraneous air or hydrochloric acid will not be directly contacted, so, weathering needs a period of time, accordingly, due to
Protective film 130 is covered on the surface of conductive pattern 120, water, carbon dioxide, hydrochloric acid solution can from protective film 130 and substrate 110 it
Between gap be immersed on conductive pattern 120, so that the pearl filler in etching conductive pattern 120, makes conductive pattern 120
Structure changes, so that the signal for emitting electronic tag changes, can monitor electronics by external monitoring tool
The weathering and dissolution situation of the calcium carbonate of label.Correspondingly, also weathering and the dissolution of the rock around electronic tag, thus monitoring
Atmospheric disintegration of rocks and dissolution situation around electronic tag, are monitored the corrosion condition of the calcium carbonate in environment.
Radio-frequency recognition system, including antenna, reader, electronic tag and computer system, antenna is for receiving electronics mark
The signal penetrated is signed and issued, reader is electrically connected with antenna and obtains information for reading signal, and computer system is used for and reader
Electrical connection is for handling and analyzing information.
Radio-frequency recognition system i.e. RFID system, the working principle of radio-frequency recognition system are the working principle of RFID system
Unanimously.It is alternatively possible to which RFID tag is placed in the coating used when historical relic is repaired, coating can be graphene, carbon material
Deng.When coating is not etched, RFID tag and coating contacts, after coating is corroded, the internal structure of historical relic
It is destroyed by weathering etc. again, the substances such as acid rain, seawater, carbon dioxide can penetrate into the boundary of protective film 130 Yu substrate 110
At face, contacted with internal conductive pattern 120, since the raw material of conductive pattern 120 include calcium carbonate material, then calcium carbonate with
After carbon dioxide and vapor contact, calcium carbonate meeting weathering is chemically reacted: CaCO3+H2O+CO2=Ca (HCO3)2Carbonic acid
Hydrogen calcium is dissolved in water, makes calcium carbonate weathering corrosion;After calcium carbonate is contacted with seawater or acid rain, chemistry occurs for dissolution of calcium carbonate
Reaction: CaCO3+ 2HCl=CaCl2+H2O+CO2↑, silicon chloride is dissolved in water, disappearance is being slowly dissolved at calcium carbonate, to make conduction
The structure of pattern 120 changes, then, the radiofrequency signal that RFID tag is sent changes, last computer system processor
The data variation obtained with analysis needs to repair historical relic to illustrate that coating is corroded.
In another embodiment, when historical relic is found, structure is not corrupted, in cultural artifact surface or historical relic
It is interior to place RFID tag, when external environment corrodes RFID tag, it can also corrode historical relic, the radio frequency of RFID tag transmitting
When signal changes, last computer system processor and the obtained data variation of analysis, thus monitor historical relic by
It destroys, to protect in time to historical relic, if historical relic is not corroded, the radiofrequency signal of RFID tag transmitting will not be sent out
Changing reaches the non-destructive testing to historical relic.
Embodiment
Electrically conductive ink includes conductive material, solvent, pearl filler and additive, and the content of each component of electrically conductive ink is such as
Table 1:
The each component content (being herein mass percent) of 1 electrically conductive ink of table
After above-mentioned each component is cooperated according to aforementioned proportion, evenly dispersed formation electrically conductive ink passes through 100T silk-screen printing
Method be heating and curing under the conditions of 120 DEG C it was evenly coated on above PET base material, obtain the conductive pattern of 20 μ m-thicks
120.PE protective film 130 is covered on the surface of conductive pattern 120, and under conditions of temperature is 45 DEG C, pressure is 0.5MPa
Hot padding 10s obtains RFID tag shown in FIG. 1.
By obtained RFID tag carry out environmental acidification and weathering modeling test, method particularly includes: embodiment 1-3 and
The bubble of RFID tag made from comparative example is in the HCl weak solution that mass fraction is 1%, wherein HCl weak solution is static molten
Liquid, the fluid temperature of HCl weak solution are 10-25 DEG C, and external air temperature is 12-28 DEG C, and corresponding with room temperature, outside air is wet
Degree is 85%-90%, and atmospheric pressure is a standard atmospheric pressure.
The structure change of RFID tag is obtained by range estimation, and RFID label antenna inductive signal intensity is adopted by RFID system
Collection is handled to obtain such as table 2,
The performance evaluation of table 2:RFID label
Wherein, 1, appearance,: RFID tag overall appearance is good, excellent transparency, 120 no cracking of conductive pattern or falls off;
Δ: RFID tag overall appearance is fine, good, the crack areas ratio < 5% of conductive pattern 120 of the transparency;╳: RFID tag is whole
Poor, transparent poor, cracking Mian Ji≤5% of conductive pattern 120 is seen in vitro.
2, the time required to RFID tag inductive signal strength retrogression 30%,
Test object is RFID tag, and the measuring distance between reader and RFID tag is 1 meter.After experiment starts, often
It was measured in parallel the inductive signal intensity of RFID tag three times every 2 hours, is averaged.When 70% that test value is initial value or more
When low, experiment stops, and the time needed for experiment duration this moment is denoted as RFID tag inductive signal strength retrogression 30%.Its
In, select 30% the reason of be because exclude test error influence under the premise of, 30% signal intensity attenuation can be effective
It helps technical staff to obtain effective Feedback information in weathering or acidification initial stage, carries out historical relic reparation and protection work in time.
From table 2 it can be seen that after RFID tag is soaked in 48h in acidic environment, the conduction of embodiment and comparative example
Film such as all starts to occur being cracked the degradation phenomenas, it was demonstrated that has had acid solution to penetrate into PE protective layer and graphene electricity at this time
Between the floor of road.
The time required to test RFID tag inductive signal strength retrogression 30%, it has been found that the RFID in comparative example
Label used time longest, be due in comparative example do not contain calcium carbonate, so, acid solution penetrates into the RFID tag of comparative example
After interior, the short time cannot corrode conductive pattern 120, in time longer situation, can corrode solvent to make RFID tag sense
Induction signal strength retrogression 30%.
And in embodiment 1-3, the mass fraction of pearl filler gradually increases, RFID tag inductive signal strength retrogression
It gradually shortens the time required to 30%, it was demonstrated that addition calcium carbonate can sense the acidification variation of ambient enviroment in high sensitivity, and lead to
The chemical reaction of percarbonic acid calcium and acid, causes the corrosion of circuit, so that decaying or unstable occurs for RFID tag inductive signal intensity
It is fixed, so as to accurately be carried out non-destructive testing to ocean rock, and ocean rock historical relic is repaired and protected in time.
In the present embodiment, 3-5 can be placed simultaneously in the inside of ocean rock, soil and rock or rock building simultaneously
Piece obtained RFID tag of embodiment 1-3, to improve the accuracy and reliability of detection.
Embodiments described above is a part of the embodiment of the present invention, instead of all the embodiments.Reality of the invention
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of selected implementation of the invention
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
Claims (10)
1. a kind of electrically conductive ink, is used to prepare electronic tag, which is characterized in that the electrically conductive ink includes conductive material, carbonic acid
Calcium filler and solvent.
2. electrically conductive ink according to claim 1, which is characterized in that the pearl filler is selected from powdered whiting, light
At least one of matter calcium carbonate, gel calcium carbonate, crystal calcium carbonate, modified calcium carbonate.
3. electrically conductive ink according to claim 1, which is characterized in that the conductive material is selected from carbon-based material, metal material
At least one of material and conductive polymer material;
Optionally, the carbon-based material is selected from graphene, graphene quantum dot, graphene oxide, Graphene derivative, carbon nanometer
At least one of pipe, fullerene, electrically conductive graphite and carbon black;
Optionally, the metal material is selected from least one of gold, silver and copper;
Optionally, the conductive polymer material is selected from least one of Polyglycolic acid fibre and poly styrene sulfonate.
4. electrically conductive ink according to claim 1, which is characterized in that the solvent includes water solvent and/or organic system
Solvent;
Optionally, the water solvent includes water and/or alcohols;
Optionally, the organic solvent is selected from acetone, terpinol, styrene-acrylic emulsion, N-Methyl pyrrolidone, methyl-etherified amino
At least one of with 150# solvent naphtha.
5. electrically conductive ink according to claim 1-4, which is characterized in that the electrically conductive ink further includes addition
Agent;
Optionally the additive is selected from least one of binder, levelling agent, defoaming agent and coalescing agent;
Optionally, the binder is selected from least one of polyurethane, acrylate and epoxy resin;
The levelling agent is selected from least one of olefin(e) acid class levelling agent, fluorine class levelling agent and organosilicon levelling agent;
Optionally, the defoaming agent includes organosiloxane and/or polyethers;
The coalescing agent is selected from least one of propandiol butyl ether, propylene glycol methyl ether acetate and alcohol ester 12.
6. a kind of preparation method of electronic tag, which is characterized in that coat the electrically conductive ink formation on a surface of substrate and lead
Electrical pattern, in the surface covering protection film of the conductive pattern.
7. preparation method according to claim 6, which is characterized in that the protective film is covered on the surface of the substrate,
And the protective film and the conductive pattern are located at the same side of the substrate.
8. a kind of electronic tag, which is characterized in that the preparation method of the electronic tag as described in claim 6 or 7 is made.
9. a kind of radio-frequency recognition system, which is characterized in that including antenna, reader and electronic tag according to any one of claims 8, institute
It states antenna and is electrically connected with the antenna for receiving the signal of the electronic tag transmitting, the reader and is used to read described
Signal obtains information.
10. radio-frequency recognition system according to claim 9, which is characterized in that the radio-frequency recognition system further includes calculating
Machine system, the computer system with the reader for being electrically connected for handling and analyzing the information.
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CN109880441A (en) * | 2019-03-19 | 2019-06-14 | 宁波石墨烯创新中心有限公司 | Electrically conductive ink and preparation method thereof, thin film transistor (TFT) and preparation method thereof |
CN109913039A (en) * | 2019-03-21 | 2019-06-21 | 山东华冠智能卡有限公司 | Graphene-based RFID antenna and its printing process |
CN110189621A (en) * | 2019-06-27 | 2019-08-30 | 上海碳源汇谷新材料科技有限公司 | A kind of antifalsification label based on graphene |
CN112029342A (en) * | 2020-09-25 | 2020-12-04 | 欧菲微电子技术有限公司 | Conductive ink, ultrasonic fingerprint module and electronic equipment |
WO2021053333A1 (en) * | 2019-09-16 | 2021-03-25 | Payper Technologies Limited | Printing substrate, method of manufacture, method of use, and computer system |
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