WO2010095844A2 - 탄소나노튜브 발열시트 - Google Patents
탄소나노튜브 발열시트 Download PDFInfo
- Publication number
- WO2010095844A2 WO2010095844A2 PCT/KR2010/000965 KR2010000965W WO2010095844A2 WO 2010095844 A2 WO2010095844 A2 WO 2010095844A2 KR 2010000965 W KR2010000965 W KR 2010000965W WO 2010095844 A2 WO2010095844 A2 WO 2010095844A2
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- WIPO (PCT)
- Prior art keywords
- layer
- heating
- carbon nanotube
- film layer
- carbon
- Prior art date
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 92
- 239000002041 carbon nanotube Substances 0.000 title claims description 78
- 229910021393 carbon nanotube Inorganic materials 0.000 title claims description 77
- 238000010438 heat treatment Methods 0.000 claims abstract description 81
- 229910052709 silver Inorganic materials 0.000 claims abstract description 13
- 239000004332 silver Substances 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims description 99
- 239000010408 film Substances 0.000 claims description 34
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 24
- 229910052802 copper Inorganic materials 0.000 claims description 21
- 239000010949 copper Substances 0.000 claims description 21
- 239000010409 thin film Substances 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 239000012790 adhesive layer Substances 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 12
- 238000007646 gravure printing Methods 0.000 abstract description 7
- 229910052799 carbon Inorganic materials 0.000 description 17
- 238000010586 diagram Methods 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 230000003806 hair structure Effects 0.000 description 5
- 230000020169 heat generation Effects 0.000 description 5
- 239000004798 oriented polystyrene Substances 0.000 description 5
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000011889 copper foil Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 239000002048 multi walled nanotube Substances 0.000 description 3
- -1 or the like Chemical compound 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 238000007650 screen-printing Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- ALKZAGKDWUSJED-UHFFFAOYSA-N dinuclear copper ion Chemical compound [Cu].[Cu] ALKZAGKDWUSJED-UHFFFAOYSA-N 0.000 description 2
- 229920006248 expandable polystyrene Polymers 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000002109 single walled nanotube Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000002305 electric material Substances 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
- H05B2203/004—Heaters using a particular layout for the resistive material or resistive elements using zigzag layout
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/013—Heaters using resistive films or coatings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/029—Heaters specially adapted for seat warmers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2214/00—Aspects relating to resistive heating, induction heating and heating using microwaves, covered by groups H05B3/00, H05B6/00
- H05B2214/04—Heating means manufactured by using nanotechnology
Definitions
- the present invention relates to a polymer planar heating sheet coated with a CNT (Carbon Nano Tube) solution by gravure printing, and more particularly, to a planar heating element by gravure printing, in a zigzag form between a biaxially stretched transparent PET or OPS film.
- the present invention relates to a planar heating sheet, which heats up the temperature in a short time by forming the arranged silver paste and then coats the CNT ink having excellent heat generation, is safe from breakage or fire, and consumes less power.
- a typical car seat uses a thin electric wire to raise the temperature at a momentary high current and maintain a constant temperature by breaking and flowing the current through a temperature sensor or bimetal.
- the above product has a problem that heat dissipation is exposed to the surroundings due to disconnection of the product due to disconnection or high heat is generated around the electric wire, and the heat uniformity of each product is inferior to the wire arrangement by hand. .
- Planar heating elements used in automobiles should be made of 12 Volts. When using existing carbon pastes, they must be made in the shape of nets to prevent local temperature rises. Disconnection between the silver pastes results in the use of four or more conductors, which in turn creates product size constraints. Therefore, the existing product is difficult to produce a planar heating element of more than 250mm ⁇ 300mm at 12 Volt, and has a problem of poor heat generation durability due to uneven temperature rise.
- FIG. 1 is a view showing a heating mechanism of a conventional heating element, the contact surface of the heating element and the heating element is local, the heat transfer efficiency for the heating element is lowered and the temperature rise time to the highest temperature is also slow.
- FIG. 4 is a schematic diagram of the electrical network structure of general carbon, in which general carbon is partially mixed with carbon and metal in a binder to be in contact with particles, so that electricity flows through it. Concentrated, high heat is generated and short-circuited by accumulated energy.
- the resist paste using general conductive carbon has a negative temperature resistance coefficient which is a characteristic of carbon, it is difficult to secure reliability due to the decrease in the resistance value due to repeated use.
- the metallic material has a positive temperature resistance coefficient, it is difficult to secure reliability due to an increase in the resistance value due to repeated use.
- the Republic of Korea Utility Model Registration No. 207322 is inclined and arranged in the same direction as the woven cotton yarn or natural fiber, and arranged in the same direction as the cotton yarn or natural fiber and spaced at regular intervals, and carbon coated on the woven copper wire, cotton yarn or natural fiber
- the heating plate is woven by a heat-weaving yarn woven with a weft yarn, and formed on the heating plate body with a polyurethane coating layer formed on the upper and lower surfaces thereof, and is composed of a temperature sensor attached to be turned on / off in a predetermined temperature range, and the copper wire terminal is provided with a connection terminal connected to a vehicle power source.
- An automobile seat having a heat generating function is disclosed.
- Korean Utility Model Registration No. 300692 describes a carbon paste formed in the form of a plurality of ladders in a multi-stage arrangement structure on a top surface of a bottom plate formed of a plate-shaped synthetic resin material in the ordinary planar heating element by screen printing, and an outer peripheral surface of the carbon paste.
- a plurality of silver pastes are applied to one side or the front surface of the outer circumferential surface and are alternately formed so that the negative electrode and the positive electrode are alternately connected to each other.
- a planar heating element by printing screen printing characterized in that the synthetic resin material having an insulating coating cured coating, and the finishing plate coated with adhesive and adhesive components are laminated and mounted.
- Korean Patent Registration No. 644089 which is installed inside a car seat and a backrest and is equipped with a heating wire, includes a seat heater cushion and a seat heater bag, each of which is installed in a plane on a heat resistant member having a predetermined shape.
- Each heating wire is composed of heating wires, and each heating wire is coupled with a connection jack to prevent breakage due to weight, and is coupled to the other side of the seat heater cushion heating wire, so that the resistance value decreases when the temperature of the heating wire rises.
- ECU Electronic Control Unit
- variable resistance multi-stage controller is coupled to one side of ECU and the other side of NTC, and the power is continuously turned on by resistance values of NTC and variable resistance multi-stage controller.
- Car seat back member with built-in heating line It can control.
- a heating wire, carbon, or the like is used as a heating element, and there is no example of applying carbon nanotubes as a heating element.
- An object of the present invention is to provide a carbon nanotube heating sheet applying the carbon nanotubes as a heating element.
- the present invention provides a heat generating sheet including a heat generating layer consisting of carbon nanotubes, in order to achieve the above object.
- the fire increases due to the shape change and the local resistance change of the plate-shaped synthetic resin material due to the increase in resistance caused by the temperature rise generated in the conventional carbon paste.
- it was made to maintain the balanced temperature after the initial temperature rise by using the PTC (Position Temperature Coefficient) effect of CNT material without using parts such as ECU, which is a separate overcurrent protection device, for use as a heating material for automobiles.
- PTC Purition Temperature Coefficient
- CNT solution was used to maintain a uniform temperature by PTC properties even without a temperature controller such as bimetal.
- CNTs Unlike carbon paste, which is a plate-like structure, CNTs have a long hair structure and are well-electric material in the horizontal direction of the hair structure.
- the electricity flows through a structure in which every hair is entangled with each other, resistance change does not occur significantly even when the hair is bent.
- the heater is bent due to the friction of the butt, gravity, the resistance problem was the biggest problem in the existing product, the product of the present invention is characterized in that the resistance change does not occur.
- the CNT is printed on the silver paste forming the electrode layer, thereby eliminating the need for a separate antioxidant layer.
- the silver paste has excellent oxidizing properties, so the existing products had to be coated and cured with insulating synthetic resin after screen printing.
- Carbon nanotubes are a new material consisting of six carbon hexagons connected to each other to form a tubular shape.
- the shape of the carbon nanotubes consists of six carbon hexagons connected to each other to form a tubular shape.
- the diameter of the tube is only a few nanometers to several tens of nanometers, which is called carbon nanotubes.
- Its electrical conductivity is similar to that of copper, its thermal conductivity is like the best diamond in nature, and it is 100 times stronger than steel.
- carbon nanotubes doped with metal may be used as the carbon nanotubes.
- the paste using metal-carbon nanotubes has a temperature resistance coefficient of nearly zero, and it is easy to secure reliability because there is no change in resistance value even after repeated use.
- PTC positive thermistor
- the metal used for the doping of the carbon nanotubes may be silver, copper, or the like, and silver is preferable in view of electrical conductivity and compatibility with the electrode.
- the heating sheet according to the first embodiment of the present invention is composed of a base film layer, an electrode layer, a carbon nanotube heating layer, a film layer, an adhesive layer, and a protective material layer from above.
- the heating sheet according to the second embodiment of the present invention is composed of a base film layer, an electrode layer, a carbon nanotube heating layer, a film layer, an adhesive layer, and a heat insulating material layer from above.
- the copper thin film layer is preferably formed on both sides of the carbon nanotube heating layer. Copper conductors with good electrical conductivity can be used to make current flow more smoothly. When copper copper foil is used, it is possible to solve the non-uniform temperature distribution generated in the existing planar heating element.
- a conductive adhesive may be used between the copper thin film layer and the electrode layer.
- the conductive adhesive may be used to minimize contact resistance between the copper thin film layer and the electrode layer, thereby preventing breakage of the copper thin film layer and the electrode layer due to breakage of the copper thin film.
- the base film layer and the film layer may impart flame retardancy or higher flame retardancy by using a flame retardant prescribed film.
- Carbon nanotube heating sheet of the present invention can be used for a variety of applications, such as automotive side mirrors, seat heaters, seat cushions, electric blankets.
- the carbon nanotube heating sheet of the present invention has a wide heat generating area, which is excellent in heat transfer efficiency for the heating element, and also a fast rising time to the highest temperature, and is a hair structure that is entangled with each other. There is no risk of short or fire due to many contact points that are connected even when partial short occurs in structure, and it is similar to fibrous structure even though particles are not attached and maintains electrical network phenomenon through which electricity flows. Compared with the very small content, even more than equivalent performance and electrical stability is achieved. In addition, when doping metal on carbon nanotubes, the temperature resistance coefficient is close to zero and there is no change in resistance value even after repeated use, so it is easy to secure reliability, and the short circuit due to the heat collection phenomenon can be prevented due to the unbroken electrical network effect. And can implement a static thermistor property.
- FIG. 1 is a view showing a heating mechanism of a conventional heating element.
- FIG. 2 is a view showing a heating mechanism of the carbon nanotube heating element.
- FIG 3 is a view illustrating a doping process of carbon nanotubes.
- 5 is an electrical network structure diagram of carbon nanotubes.
- FIG. 6 is a cross-sectional view of the carbon nanotube heating sheet according to the first embodiment of the present invention.
- FIG. 7 is a cross-sectional view of a carbon nanotube heating sheet according to a second embodiment of the present invention.
- FIG. 8 is a plan view of a carbon nanotube heating sheet according to the present invention.
- FIG. 2 is a view illustrating a heating mechanism of a carbon nanotube heating element.
- the heat transfer efficiency of the heating element is excellent and the temperature rising time to the maximum temperature is also illustrated. fast.
- 3 is a diagram illustrating a doping process of carbon nanotubes, and shows chemical bonding characteristics of carbon nanotubes and metal atoms.
- the carbon nanotubes are treated with acid, functional groups are formed at the ends of the carbon nanotubes as shown in the first drawing of FIG. 3, and when the metal is coated thereon, the metal ions are chemically added to the terminal functional groups of the carbon nanotubes as shown in the second drawing of FIG. 3.
- 3 is a schematic diagram of a metal-doped carbon nanotube powder.
- the paste applied with metal-carbon nanotubes has a temperature resistance coefficient of nearly zero, and it is easy to secure lightning resistance because there is no change in resistance value even after repeated use. This is not only corrected by mixing a carbon having a negative temperature resistance coefficient and a metal having a positive temperature resistance coefficient, but the above characteristics are realized by the combination of metal particles using chemical bonding on the surface of the carbon nanotubes. will be.
- FIG. 5 is an electrical network structure diagram of carbon nanotubes, and is an electrical network effect that does not break when a metal is doped into carbon nanotubes, and prevents short circuits due to repeated heat collection phenomenon when general carbon is used as in FIG. 4. can do.
- the carbon nanotubes are similar to the fibrous structure and maintain the electrical network phenomena even though the particles do not adhere to each other and have a certain separation distance. It also has stability.
- Carbon nanotubes are entangled with each other because of their hair structure, so they have excellent durability due to long-term use, and there is no risk of short or fire due to the large number of contact points connected even when partial shorts occur in the molecular structure.
- FIG. 6 is a cross-sectional view of a carbon nanotube heating sheet according to a first embodiment of the present invention, wherein the carbon nanotube heating sheet has a base film layer 10, an electrode layer 20, and a carbon nanotube heating layer 30 from above. , Copper thin film layer 40, film layer 50, pressure-sensitive adhesive layer 60, and protective material layer 70.
- the base film layer 10 may be a biaxially stretched (biaxially stretched) polyethylene terephthalate (PET) film or an oriented polystyrene (OPS) film as a printing substrate of the electrode layer 20, and has a thickness of 100 ⁇ m or less.
- PET polyethylene terephthalate
- OPS oriented polystyrene
- a flame retardant formulation can be separately applied to the base film layer 10 to secure a flame retardant grade 3.
- the electrode layer 20 is a pattern-printed layer of silver paste, and is printed with a smaller area than the base film layer 10. By controlling the flow of current in accordance with the interval and width between the silver paste electrodes, it is possible to determine the heat generation temperature rise time and the retention time of the carbon nanotubes.
- the carbon nanotube heating layer 30 is a dry layer printed with carbon nanotube ink, and the carbon nanotube ink is a gravure printing ink having a viscosity composed of a binder, a dispersant, and a stabilizer such as acrylic, and a pattern is formed by gravure printing. Form.
- single-walled carbon nanotubes SWCNTs
- thin multi-walled carbon nanotubes Thin MWCNTs
- PTC positive thermistor
- the copper thin film layer 40 is a layer in which a copper thin film is laminated on both sides of the carbon nanotube heating layer 30. Copper foil with good electrical conductivity can be used to make current flow smoother. Although there is no big problem without using copper, when copper copper foil is used, it is possible to solve the nonuniform temperature distribution generated in the existing planar heating element.
- a conductive adhesive may be used to minimize the contact resistance between the copper portion of the copper thin film layer 40 and the silver paste of the electrode layer 20, which is caused by breakage of the copper thin film layer 40 and the electrode layer ( This is to prevent the breakage of 20).
- the film layer 50 is a layer that protects the electrode layer 20 and the carbon nanotube heating layer 30, and is thermally laminated using the same film as the base film layer 10.
- the pressure-sensitive adhesive layer 60 may be acrylic, urethane, epoxy adhesive, or the like.
- the protective material layer 70 is a layer for protecting the pressure-sensitive adhesive layer 60, and the protective film or protective paper is laminated.
- FIG. 7 is a cross-sectional view of a carbon nanotube heating sheet according to a second embodiment of the present invention, wherein the carbon nanotube heating sheet has a base film layer 10, an electrode layer 20, and a carbon nanotube heating layer 30 from above. , Copper thin film layer 40, film layer 50, pressure-sensitive adhesive layer 60, and heat insulating material layer 80.
- the base film layer 10, the electrode layer 20, the carbon nanotube heating layer 30, the copper thin film layer 40, the film layer 50, and the adhesive layer 60 are the same as those of the carbon nanotube heating sheet of FIG. 6. Instead of the protective material layer 70, the heat insulating material layer 80 is laminated.
- the heat insulating material layer 80 is a layer for preventing heat from leaking downward, and may use heat insulating materials such as polyurethane (PU), expandable polystyrene (EPS), and expandable polypropylene (EPP).
- PU polyurethane
- EPS expandable polystyrene
- EPP expandable polypropylene
- FIG. 8 is a plan view of the carbon nanotube heating sheet according to the present invention, since the carbon nanotube heating layer 30 is printed with a large area in a zigzag form, the area for heat generation is widened, thereby increasing energy transfer efficiency.
- the pattern of the electrode layer 20, the carbon nanotube heating layer 30, and the copper thin film layer 40 shown in FIG. 8 is exemplary and may be variously changed.
- the present invention relates to a polymer planar heating sheet coated with a CNT (Carbon Nano Tube) solution by gravure printing, and more particularly, to a planar heating element by gravure printing, in a zigzag form between a biaxially stretched transparent PET or OPS film.
- the present invention relates to a planar heating sheet, which heats up the temperature in a short time by forming the arranged silver paste and then coats the CNT ink having excellent heat generation, is safe from breakage or fire, and consumes less power.
- the carbon nanotube heating sheet of the present invention has a wide heat generating area, which is excellent in heat transfer efficiency for the heating element, and also a fast rising time to the highest temperature, and is a hair structure that is entangled with each other.
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- Laminated Bodies (AREA)
Abstract
Description
Claims (8)
- 탄소나노튜브로 구성되는 발열층을 포함하는 발열시트.
- 제1항에 있어서, 위로부터 기재필름층, 전극층, 탄소나노튜브 발열층, 필름층, 점착제층, 보호재층을 포함하는 발열시트.
- 제1항에 있어서, 위로부터 기재필름층, 전극층, 탄소나노튜브 발열층, 필름층, 점착제층, 단열재층을 포함하는 발열시트.
- 제1항 내지 제3항 중 어느 한 항에 있어서, 탄소나노튜브가 금속을 도핑한 탄소난노튜브인 것을 특징으로 하는 발열시트.
- 제4항에 있어서, 금속이 은인 것을 특징으로 하는 발열시트.
- 제2항 또는 제3항에 있어서, 탄소나노튜브 발열층의 양측면에 구리 박막층이 형성된 것을 특징으로 하는 발열시트.
- 제6항에 있어서, 구리 박막층과 전극층 사이에 전도성 점착제가 사용된 것을 특징으로 하는 발열시트.
- 제2항 또는 제3항에 있어서, 기재필름층과 필름층이 이축 연신 필름인 것을 특징으로 하는 발열시트.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/147,810 US9237606B2 (en) | 2009-02-17 | 2010-02-17 | Carbon nanotube sheet heater |
JP2011547822A JP5580835B2 (ja) | 2009-02-17 | 2010-02-17 | 炭素ナノチューブ発熱シート |
EP10743919.2A EP2400814A4 (en) | 2009-02-17 | 2010-02-17 | HEATER FOR CARBON NANOTUBE HOLES |
CN201080008123XA CN102318438A (zh) | 2009-02-17 | 2010-02-17 | 碳纳米管散热片 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2009-0012686 | 2009-02-17 | ||
KR1020090012686A KR101328353B1 (ko) | 2009-02-17 | 2009-02-17 | 탄소나노튜브 발열시트 |
Publications (2)
Publication Number | Publication Date |
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WO2010095844A2 true WO2010095844A2 (ko) | 2010-08-26 |
WO2010095844A3 WO2010095844A3 (ko) | 2010-11-04 |
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PCT/KR2010/000965 WO2010095844A2 (ko) | 2009-02-17 | 2010-02-17 | 탄소나노튜브 발열시트 |
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US (1) | US9237606B2 (ko) |
EP (1) | EP2400814A4 (ko) |
JP (1) | JP5580835B2 (ko) |
KR (1) | KR101328353B1 (ko) |
CN (1) | CN102318438A (ko) |
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Also Published As
Publication number | Publication date |
---|---|
KR101328353B1 (ko) | 2013-11-11 |
EP2400814A4 (en) | 2013-10-30 |
KR20100093643A (ko) | 2010-08-26 |
EP2400814A2 (en) | 2011-12-28 |
WO2010095844A3 (ko) | 2010-11-04 |
US9237606B2 (en) | 2016-01-12 |
US20120125914A1 (en) | 2012-05-24 |
JP5580835B2 (ja) | 2014-08-27 |
JP2012516536A (ja) | 2012-07-19 |
CN102318438A (zh) | 2012-01-11 |
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