CN108289347A - Electric radiant Heating Film, preparation method and applications - Google Patents
Electric radiant Heating Film, preparation method and applications Download PDFInfo
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- CN108289347A CN108289347A CN201810101267.8A CN201810101267A CN108289347A CN 108289347 A CN108289347 A CN 108289347A CN 201810101267 A CN201810101267 A CN 201810101267A CN 108289347 A CN108289347 A CN 108289347A
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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
- H05B3/20—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
- H05B3/36—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heating conductor embedded in insulating material
-
- 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
-
- 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
- H05B2203/017—Manufacturing methods or apparatus for heaters
Landscapes
- Surface Heating Bodies (AREA)
Abstract
The present invention relates to electric fever fields, specifically, providing a kind of Electric radiant Heating Film, preparation method and applications.The Electric radiant Heating Film includes insulating film and conductive heating layer, and the insulating film includes recombination region and is set to the insulation layer of the recombination region periphery, and the conductive heating layer is set to the recombination region surface；The conductive heating layer includes grapheme material internal layer and current-carrying item, and the current-carrying item is set to the periphery of grapheme material internal layer.Above-mentioned Electric radiant Heating Film has the advantages that electrical and thermal conductivity performance is high, thermal conversion efficiency is high, power attenuation is small, energy conservation and environmental protection, corrosion resistance is good, heating temperature is uniform safe to use.
Description
Technical field
The present invention relates to electric fever fields, in particular to a kind of Electric radiant Heating Film, preparation method and applications.
Background technology
Electric radiant Heating Film is metal foil to be fabricated to various resistive circuits, and be sandwiched the electricity formed between two layers of insulation book piece
Thermal element.PI (Polyimide) polyimides Electric radiant Heating Film is
Interior conductive heating unit is formed through high temperature and pressure heat seal.The insulating layer of polyimides Electric radiant Heating Film is polyimide film, polyimide film
Have the characteristics that dielectric strength is good, dielectric strength is excellent, heat conduction efficiency is high；Heater uses special metal foil or wire
It is made, resistance has superpower stability, this allows it to be widely applicable for heating art and can obtain quite high
Temperature control precision.
Electric heat membrane heating is emerging in the world one of heating system, it is one kind using electric energy as source, passes through infra-red radiation
The novel heating mode conducted heat；Because of it with high pressure resistant, humidity, bearing temperature range is wide, high tenacity and low-shrinkage
Equal excellent performances, and then be more and more widely used.
With making rapid progress for science and technology, the heat-producing device of electric heater is towards energy saving, product miniaturization, lightweight, slimming
Trend development, the heating property of required Electric radiant Heating Film also improves therewith.However, Electric radiant Heating Film in currently available technology and being made with it
Electric conversion rate is low, electric energy cannot be utilized adequately, power damage because the limitation of material and technique exists for the heating equipment made
The shortcomings that consumption is big, waste of energy.
In view of this, special propose the present invention.
Invention content
The first object of the present invention is to provide a kind of Electric radiant Heating Film, which has that electrical and thermal conductivity performance is high, hot-cast socket
It is efficient, power attenuation is small, energy conservation and environmental protection, corrosion resistance are good, the uniform advantage safe to use of heating temperature.
The second object of the present invention is to provide a kind of preparation method of Electric radiant Heating Film, and this method craft science is simple, is easy to
Operation is suitble to produce in enormous quantities, and production cost is low, and the Electric radiant Heating Film being prepared has electrical and thermal conductivity performance height, thermal conversion efficiency
It is high, power attenuation is small, energy conservation and environmental protection, corrosion resistance are good, the uniform advantage safe to use of heating temperature.
The third object of the present invention is to provide a kind of heating equipment, oven or water heater, the heating equipment, oven or heat
Hydrophone includes above-mentioned Electric radiant Heating Film, thus is at least had the advantages that identical as above-mentioned Electric radiant Heating Film.
The fourth object of the present invention is to provide a kind of above-mentioned Electric radiant Heating Film answering in heating equipment, oven or water heater
With the thermal conversion efficiency of heating equipment, oven or water heater, environmental protection and energy saving, heating temperature uniformity, anticorrosive can be improved
Property and safety in utilization etc..
In order to realize that the above-mentioned purpose of the present invention, spy use following technical scheme：
In a first aspect, the present invention provides a kind of Electric radiant Heating Film, including insulating film and conductive heating layer, the insulating film include
Recombination region and the insulation layer for being set to the recombination region periphery, the conductive heating layer are set to the recombination region surface；
The conductive heating layer includes grapheme material internal layer and current-carrying item, and the current-carrying item is set in grapheme material
The periphery of layer.
As further preferred technical solution, the grapheme material internal layer includes graphene internal layer and/or graphene
Composite inner.
As further preferred technical solution, the graphene composite material internal layer includes that graphene-macromolecule is compound
Material inner layer and/or graphene-inorganic nanometer composite material internal layer.
As further preferred technical solution, the current-carrying item includes metal foil and/or wire.
As further preferred technical solution, the insulating film includes polyimide film.
As further preferred technical solution, bonding is additionally provided between the insulating film and the conductive heating layer
Layer；
Preferably, the thickness of the adhesive layer is 8-12 μm；
Preferably, the thickness of the insulating film is 30-100 μm；
Preferably, the thickness of the grapheme material internal layer is 30-50 μm；
Preferably, the thickness of the current-carrying item is 10-50 μm.
Second aspect, the present invention provides a kind of preparation methods of above-mentioned Electric radiant Heating Film, include the following steps：Respectively by graphite
The recombination region surface that alkene material and current-carrying item are coated on insulating film can be obtained the Electric radiant Heating Film.
As further preferred technical solution, first in the recombination region surface application of adhesive of insulating film, then divide again
Grapheme material and current-carrying item recombination region surface is not coated on；
Preferably, further include the steps that calendering after current-carrying item is coated on recombination region surface；
Preferably, the painting method is spray coating method；
Preferably, it the described method comprises the following steps：
(a) in the recombination region surface spraying adhesive of Electric radiant Heating Film；
(b) current-carrying item is sprayed at recombination region surface, then is rolled successively and is dried；
(c) grapheme material is sprayed at recombination region surface, grapheme material internal layer is formed after dry；
(d) Electric radiant Heating Film is obtained after encapsulating.
The third aspect, the present invention provides a kind of heating equipment, oven or water heaters including above-mentioned Electric radiant Heating Film.
Fourth aspect, the present invention provides a kind of application of above-mentioned Electric radiant Heating Film in heating equipment, oven or water heater.
Compared with prior art, beneficial effects of the present invention are：
The conductive heating layer of Electric radiant Heating Film provided by the invention includes grapheme material internal layer, and grapheme material has excellent
Conductive and heat-conductive characteristic, to make Electric radiant Heating Film have, electrical and thermal conductivity performance is high, thermal conversion efficiency is high, power attenuation is small and energy conservation and environmental protection
The advantages of, additionally have the advantages that corrosion resistance is good and heating temperature is uniform.Specifically, current-carrying item and graphene after being powered
Material inner layer has electric current to pass through, and generates heat, while current-carrying item limits current to the region within current-carrying item, avoids leading
It is powered on the outside of electric heating layer, cooperates with preset insulation layer on insulating film, the common safety in utilization for improving Electric radiant Heating Film.
The preparation method craft science of Electric radiant Heating Film provided by the invention is simple, it is only necessary to coat grapheme material and current-carrying item
It is easily operated in the recombination region surface of insulating film, it is suitble to produce in enormous quantities, production cost is low, the Electric radiant Heating Film being prepared
With electrical and thermal conductivity performance height, thermal conversion efficiency is high, power attenuation is small, energy conservation and environmental protection, corrosion resistance is good, heating temperature is uniform
With advantage safe to use.
Heating equipment, oven or water heater provided by the invention include above-mentioned Electric radiant Heating Film, thus are at least had and above-mentioned electricity
The identical advantage of hotting mask.
Electric radiant Heating Film provided by the invention is applied in heating equipment, oven or water heater, heating equipment can be improved, baked
The thermal conversion efficiency of case or water heater, environmental protection and energy saving, heating temperature uniformity, corrosion resistance and safety in utilization etc..
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of front view of the Electric radiant Heating Film of embodiment provided by the invention；
Fig. 2 is a kind of upward view of the Electric radiant Heating Film of embodiment provided by the invention.
Icon：1- insulating films；The recombination regions 101-；102- insulation layers；2- conductive heating layers；201- grapheme material internal layers；
202- current-carrying items；3- adhesive layers.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, technical scheme of the present invention will be carried out below
Clear, complete description.Obviously, described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, those of ordinary skill in the art obtained institute without making creative work
There are other embodiments, belongs to the range that the present invention is protected.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, can also be electrical connection；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned term with concrete condition
Concrete meaning in the present invention.
In a first aspect, as depicted in figs. 1 and 2, providing a kind of Electric radiant Heating Film, including 1 He of insulating film in some embodiments
Conductive heating layer 2, insulating film 1 include recombination region 101 and the insulation layer 102 for being set to 101 periphery of recombination region, conductive heating layer 2
It is set to 101 surface of recombination region；
Conductive heating layer 2 includes grapheme material internal layer 201 and current-carrying item 202, and current-carrying item 202 is set to grapheme material
The periphery of internal layer 201.
The material of above-mentioned insulating film includes but not limited to polyimides, polyester, carbon fiber, silicon rubber or mica etc..
Above-mentioned grapheme material internal layer refers to that mainly the internal layer made of grapheme material, grapheme material refer to comprising stone
The material of black alkene.Graphene be one kind by carbon atom with sp2Hybridized orbit forms the Two-dimensional Carbon nanometer that hexangle type is in honeycomb lattice
Material.There is graphene extraordinary heat-conductive characteristic, the thermal coefficient of pure flawless single-layer graphene to be up to 5300W/
MK is the highest carbon material of thermal coefficient so far, is higher than single-walled carbon nanotube (3500W/mK) and multi-walled carbon nanotube
(3000W/mK), when it is as carrier, thermal coefficient is also up to 600W/mK.The chemical property of graphene is similar with graphite, stone
Black alkene can adsorb and be desorbed various atoms and molecule, can change graphite when these atoms or molecule are as donor or receptor
The concentration of alkene carrier, and graphene itself can keep good electric conductivity.In addition, graphene is extremely tough and tensile, plasticity
Well, very wide-angle can be bent to and not broken, Young's modulus is about 1100GPa, fracture strength 130GPa, also,
Graphene is transparent but airtight under visible light, there is good barrier property, chemical property to stablize, Corrosion Protection is good.
Above-mentioned current-carrying item is mainly made of the substance for capableing of conducting electric current.The material of current-carrying item include but not limited to metal or
Alloy, wherein metal includes but not limited to copper, aluminium, silver or gold etc., and alloy includes but not limited to copper alloy or aluminium alloy etc..
The conductive heating layer of above-mentioned Electric radiant Heating Film includes grapheme material internal layer, and grapheme material has excellent conductive and heat-conductive
Characteristic, to make Electric radiant Heating Film have the advantages that electrical and thermal conductivity performance is high, thermal conversion efficiency is high, power attenuation is small and energy conservation and environmental protection,
Additionally have the advantages that corrosion resistance is good and heating temperature is uniform.Specifically, after being powered in current-carrying item and grapheme material
Layer has electric current to pass through, and generates heat, while current-carrying item limits current to the region within current-carrying item, avoids conductive exothermal
Layer outside is powered, and cooperates with preset insulation layer on insulating film, the common safety in utilization for improving Electric radiant Heating Film.
Above-mentioned Electric radiant Heating Film has apparent difference with traditional electric heating body, specifically includes at following 6 points：
1, electric-thermal high conversion efficiency, radiant heat accounting are big：The electric-thermal transfer efficiency of heating film is all electrical heating elements
Middle highest is highest side by side, almost without the energy loss of any other form, electric heating conversion effect in conversion process of energy
Rate reaches 99% or more, and energy saving fever is fast, and it is heat to be powered, and reaches within 2 minutes design temperature, the temperature of fever is uniform, planar
Fever, not blistering, not aliquation.
2, electromagnetic radiation is small, non-hazardous to human body：For heating film product, heating material and product structure determine hair
The equal very little of the amount of electromagnetic radiation of hotting mask in use, about 0.1-1.0 μ T (100 μ T=1 Gausses) left and right, will not be constituted pair
The harm of human body.The international unionized radiological protection committee is (referred to as：ICNIRP) 1998 for electric equipment products electromagnetic radiation
Amount limit value is recommended as：The amount of electromagnetic radiation that the amount of electromagnetic radiation of 50Hz is 100 μ T, 20-30kHz is 6.25 μ T.Heating film makes
Amount of electromagnetic radiation in is more much smaller than the amount of electromagnetic radiation of other household electronic products, such as：20 μ T of microwave oven, dust suction
20 μ T of device, 20 μ T of mobile portable phone, 2 μ T of colour television set (affixed one's name to according to U.S. environment and announce data) are in addition, heating film is using process
In will not to other electric equipment products generate electromagnetic interference phenomenon.
3, efficient heat generation area is big, and thermal uniformity and thermal comfort are good：Heating film is as electrical heating product, heating area
Greatly, heat spreads fast；Heating film surface power density is uniform, and surface temperature difference is small, and thermal uniformity can be good；Heating film is with far infrared radiation
Small to air interference effect when for heating based on heat, sendible temperature is high, and thermal comfort is good.
4, stable physical property, changed power is small, and service life is long：Although the exothermic material used in different type heating film
Difference, but it is being used as low-temp radiating electrothermal membrane in use, the performance of grapheme material is stablized relatively, heating film is using process
In physicochemical properties variation it is small, power density variation it is small, service life is long.
5, thickness is thin, flexible, occupies little space：Heating film is that thickness is most thin in all electric heating bodies, usually in 1mm
Within, it can be described as ultra-thin electric heating body；Outer insulating layer coating is easy to post-processing and transport, peace based on polyester film flexible material
Dress etc., while being also occupied space area minimum in all electrical heating products.
6, development space is big, and product applications are wide：Heating film can directly convert electrical energy into thermal energy after being used as energization
Electrical heating elements, along with using certain heating films personal characteristics, different application field, multiple product system can be developed
Row.
In a preferred embodiment, the grapheme material internal layer includes that graphene internal layer and/or graphene are multiple
Condensation material internal layer.Graphene composite material internal layer is mainly made of the composite material based on graphene, based on the compound of graphene
Material has the advantages that large specific surface area, conductivity are high, energy density is high and volume production is at low cost.
Above-mentioned graphene internal layer preferably uses purity to be not less than 99.5%, and piece diameter is made of 6-80 μm of graphene.It is above-mentioned
Piece diameter refers to middle bit slice diameter.
In a preferred embodiment, the graphene composite material internal layer includes graphene-macromolecule composite wood
Expect internal layer and/or graphene-inorganic nanometer composite material internal layer.
In a preferred embodiment, the current-carrying item includes metal foil and/or wire.
In a preferred embodiment, the insulating film includes polyimide film.Polyimide film is in yellow transparent,
Relative density 1.39~1.45 has high temperature resistant outstanding, radiation hardness, resistant to chemical etching and electrical insulation capability, can be 250~280
It is used for a long time in DEG C air；Glass transition temperature is respectively 280 DEG C (Upilex R), 385 DEG C (Kapton) and 500 DEG C or more
(Upilex S)；Tensile strength is 200MPa at 20 DEG C, and 100MPa is more than at 200 DEG C, particularly suitable to be used as flexible printed circuit
Plate base material and various heat resisting motor electrical apparatus insulation materials.
In a preferred embodiment, as shown in Fig. 2, being additionally provided with bonding between insulating film 1 and conductive heating layer 2
Layer 3.Adhesive layer has viscosity, can be bonded together insulating film and conductive heating layer.
It should be noted that making the two combine in addition to adhesive layer is arranged between insulating film and conductive heating layer
Except, it can also use other modes that insulating film and conductive heating layer is made to combine, such as high temperature hot pressing is legal.
Preferably, the thickness of the adhesive layer is 8-12 μm.The typical but non-limiting thickness of above-mentioned adhesive layer is 8 μ
M, 8.5 μm, 9 μm, 9.5 μm, 10 μm, 10.5 μm, 11 μm, 11.5 μm or 12 μm.
Preferably, the thickness of the insulating film is 30-100 μm.The thickness of above-mentioned insulating film is typical but non-limiting to be
30 μm, 35 μm, 40 μm, 45 μm, 50 μm, 55 μm, 60 μm, 65 μm, 70 μm, 75 μm, 80 μm, 85 μm, 90 μm, 95 μm or 100 μm.
Preferably, the thickness of the grapheme material internal layer is 30-50 μm.The thickness of above-mentioned grapheme material internal layer is typical
But unrestricted is 30 μm, 32 μm, 34 μm, 36 μm, 38 μm, 40 μm, 42 μm, 44 μm, 46 μm, 48 μm or 50 μm.
Preferably, the thickness of the current-carrying item is 10-50 μm.The typical but non-limiting thickness of the above-mentioned item that shuts off is 10
μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm or 50 μm.
It, can by the thickness control of adhesive layer, insulating film, grapheme material internal layer and current-carrying item in above-mentioned thickness range
Make the thickness control of Electric radiant Heating Film in reasonable range, will not be excessively thin or blocked up, while also ensuring with enough heat transfer
Energy.
The optional 500*1000mm of size of above-mentioned insulating film, the optional 460*960mm of size of recombination region, the width of insulation layer
Optional 20mm, the optional 10mm of width of current-carrying item, the optional 440*940mm of size of grapheme material internal layer.
Second aspect provides a kind of preparation method of above-mentioned Electric radiant Heating Film, includes the following steps in some embodiments：Point
The recombination region surface that grapheme material and current-carrying item are not coated on to insulating film can be obtained the Electric radiant Heating Film.
Above method craft science is simple, it is only necessary to which grapheme material and current-carrying item are coated on to the recombination region surface of insulating film
, it is easily operated, it is suitble to produce in enormous quantities, production cost is low, and the Electric radiant Heating Film being prepared has electrical and thermal conductivity performance high, hot
High conversion efficiency, power attenuation be small, energy conservation and environmental protection, corrosion resistance are good, the uniform advantage safe to use of heating temperature.
In a preferred embodiment, then distinguish again in the recombination region surface application of adhesive of insulating film first
Grapheme material and current-carrying item are coated on recombination region surface.
In application of adhesive, in order to avoid adhesive is coated to insulation layer, need to use PET film etc. pair before coating
Insulation layer is blocked.
Above-mentioned adhesive include but not limited to aqueous type adhesive, heat-fusible adhesive (hot melt adhesive), solvent type adhesive,
Emulsion Adhesive or non-solvent liquid adhesive.
Preferably, further include the steps that calendering after current-carrying item is coated on recombination region surface.Calendering can make current-carrying item
And the combination of recombination region is even closer, smooth, prevents from falling off.Calender (calender) is used when calendering, calender is by two
Or more than two rollers are arranged by certain forms, at a certain temperature, by rubber or plastics compacting extension at certain thickness and
The film of surface shape.
Preferably, the painting method is spray coating method.Spraying is by spray gun or dish-style atomizer, by means of pressure or centrifugation
Power is dispersed into uniform and fine droplet, is applied over the coating process on coated article surface, and spraying operation production efficiency is high, is applicable in
It is produced in handwork and industrial automation.
It should be understood that above-mentioned painting method can also use spin-coating method or dip coating etc..
Preferably, it the described method comprises the following steps：
(a) in the recombination region surface spraying adhesive of Electric radiant Heating Film；
(b) current-carrying item is sprayed at recombination region surface, then is rolled successively and is dried；
(c) grapheme material is sprayed at recombination region surface, grapheme material internal layer is formed after dry；
(d) Electric radiant Heating Film is obtained after encapsulating.
Preferably, temperature dry in step (b) is 65-75 DEG C, it is typical but non-limiting be 65 DEG C, 66 DEG C, 67 DEG C,
68 DEG C, 69 DEG C, 70 DEG C, 71 DEG C, 72 DEG C, 73 DEG C, 74 DEG C or 75 DEG C.
Preferably, temperature dry in step (c) is 115-125 DEG C, it is typical but non-limiting be 115 DEG C, 116 DEG C,
117 DEG C, 118 DEG C, 119 DEG C, 120 DEG C, 121 DEG C, 122 DEG C, 123 DEG C, 124 DEG C or 125 DEG C.
Above-mentioned encapsulation uses existing packaging method, the present invention to be not particularly limited this.
The third aspect provides a kind of heating equipment, oven or hot water including above-mentioned Electric radiant Heating Film in some embodiments
Device.Above-mentioned heating equipment, oven or water heater include above-mentioned Electric radiant Heating Film, thus are at least had identical with above-mentioned Electric radiant Heating Film excellent
Point.
Fourth aspect provides a kind of above-mentioned Electric radiant Heating Film in heating equipment, oven or water heater in some embodiments
Application.Above-mentioned Electric radiant Heating Film is applied in heating equipment, oven or water heater, heating equipment, oven or hot water can be improved
Thermal conversion efficiency, environmental protection and energy saving, heating temperature uniformity, corrosion resistance and safety in utilization of device etc..
Embodiment 1
A kind of Electric radiant Heating Film, including polyimide film and conductive heating layer, polyimide film include recombination region and are set to institute
The insulation layer of recombination region periphery is stated, the conductive heating layer is set to the recombination region surface；
The conductive heating layer includes graphene internal layer and metal foil, and the metal foil is set to the outer of graphene internal layer
It encloses；
Adhesive layer is additionally provided between polyimide film and conductive heating layer.
The overall thickness of above-mentioned Electric radiant Heating Film is 150 μm, and polyimides film thickness is 100 μm, and bondline thickness is 10 μm, graphite
Alkene internal layer thickness is 40 μm；
Graphene parameter：Graphene purity >=99.5%, the piece diameter d of graphene50=6~80 μm.
The size of polyimide film is 500*1000mm, and the size of recombination region is 460*960mm, and the width of insulation layer is
The width of 20mm, metal foil are 10mm, and the size of graphene internal layer is 440*940mm.
The preparation method of above-mentioned Electric radiant Heating Film, includes the following steps：(a) in the recombination region surface spraying hot melt adhesive of Electric radiant Heating Film；
(b) current-carrying item is sprayed at recombination region surface, then is rolled successively and is dried, drying temperature is 70 DEG C；
(c) grapheme material is sprayed at recombination region surface, forms grapheme material internal layer after dry, drying temperature is
120℃；
(d) Electric radiant Heating Film is obtained after encapsulating.
Product testing is carried out to the Electric radiant Heating Film in embodiment 1, it is as a result as follows：
Resistance：65 Ω, sheet resistance：110Ω；Product spraying area sprays 5 μm of uniformity tolerances without drain spray phenomenon；Product appearance
Phenomena such as without breakage, serious gauffer.
With power measuring verification resistance, sheet resistance, the resistance and sheet resistance value that difference is detected are as follows：
Resistance：73.8 Ω, 73.2 Ω, 68.8 Ω, 66.9 Ω, 60.6 Ω, 64.6 Ω, 65.1 Ω, 59.1 Ω；
Sheet resistance：111.5 Ω, 90.7 Ω, 89 Ω, 87.8 Ω, 114.3 Ω.
Using the heating equipment of the Electric radiant Heating Film, product power 500W, 200~220 DEG C of heating equipment product heating temperature,
Product heating temperature is uniform, and product design is safe and reliable, and power loss rate is low, 0.1 Ω of resistance change rate, and heating efficiency improves
40%, energy-saving electricity improves 30%.
Comparative example 1
A kind of Electric radiant Heating Film, this comparative example are replaced using carbon fiber internal layer in embodiment 1 with differing only in for embodiment 1
Graphene internal layer.
Product testing is carried out to the Electric radiant Heating Film in comparative example 1, it is as a result as follows：
Resistance：110 Ω, sheet resistance：200Ω.
With power measuring verification resistance, sheet resistance, the resistance and sheet resistance value that difference is detected are as follows
Resistance：108.8 Ω, 108.6 Ω, 109.6 Ω, 106.8 Ω, 113.6 Ω, 110.8 Ω；
Sheet resistance：198.5 Ω, 199.3 Ω, 203.4 Ω, 202.6 Ω, 203.3 Ω.
The resistance and sheet resistance that can be seen that the Electric radiant Heating Film in embodiment 1 are significantly lower than comparative example 1, illustrate in embodiment 1
Electric radiant Heating Film electric conductivity and thermal conductivity it is more preferable, heating efficiency higher, power attenuation is lower, is more energy-saving and environmentally friendly.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
Scheme.
Claims (10)
1. a kind of Electric radiant Heating Film, which is characterized in that including insulating film and conductive heating layer, the insulating film includes recombination region and setting
Insulation layer in recombination region periphery, the conductive heating layer are set to the recombination region surface；
The conductive heating layer includes grapheme material internal layer and current-carrying item, and the current-carrying item is set to grapheme material internal layer
Periphery.
2. Electric radiant Heating Film according to claim 1, which is characterized in that the grapheme material internal layer includes graphene internal layer
And/or graphene composite material internal layer.
3. Electric radiant Heating Film according to claim 2, which is characterized in that the graphene composite material internal layer includes graphene-
Polymer composite internal layer and/or graphene-inorganic nanometer composite material internal layer.
4. Electric radiant Heating Film according to claim 1, which is characterized in that the current-carrying item includes metal foil and/or wire.
5. Electric radiant Heating Film according to claim 1, which is characterized in that the insulating film includes polyimide film.
6. according to claim 1-5 any one of them Electric radiant Heating Films, which is characterized in that the insulating film and the conductive heating layer
Between be additionally provided with adhesive layer；
Preferably, the thickness of the adhesive layer is 8-12 μm；
Preferably, the thickness of the insulating film is 30-100 μm；
Preferably, the thickness of the grapheme material internal layer is 30-50 μm；
Preferably, the thickness of the current-carrying item is 10-50 μm.
7. the preparation method of claim 1-6 any one of them Electric radiant Heating Films, which is characterized in that include the following steps：Respectively will
The recombination region surface that grapheme material and current-carrying item are coated on insulating film can be obtained the Electric radiant Heating Film.
8. the preparation method of Electric radiant Heating Film according to claim 7, which is characterized in that first on the recombination region surface of insulating film
Then grapheme material and current-carrying item are coated on recombination region surface by application of adhesive respectively again；
Preferably, further include the steps that calendering after current-carrying item is coated on recombination region surface；
Preferably, the painting method is spray coating method；
Preferably, it the described method comprises the following steps：
(a) in the recombination region surface spraying adhesive of Electric radiant Heating Film；
(b) current-carrying item is sprayed at recombination region surface, then is rolled successively and is dried；
(c) grapheme material is sprayed at recombination region surface, grapheme material internal layer is formed after dry；
(d) Electric radiant Heating Film is obtained after encapsulating.
9. including heating equipment, oven or the water heater of claim 1-6 any one of them Electric radiant Heating Films.
10. application of the claim 1-6 any one of them Electric radiant Heating Film in heating equipment, oven or water heater.
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| CN201810101267.8A CN108289347A (en) | 2018-01-31 | 2018-01-31 | Electric radiant Heating Film, preparation method and applications |
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| CN109688647A (en) * | 2019-03-01 | 2019-04-26 | 无锡远稳烯科技有限公司 | A kind of manufacture craft of graphene carbon nano-tube film electric heating piece |
| CN110478627A (en) * | 2019-09-19 | 2019-11-22 | 中山市君泽科技有限公司 | A kind of laser cancer treating instrument of combination graphene infrared therapeutic |
| CN110662311A (en) * | 2019-10-28 | 2020-01-07 | 成都石墨烯应用产业技术研究院有限公司 | Graphene electric heating film heating cooking device |
| CN115038200A (en) * | 2022-06-29 | 2022-09-09 | 河北源飞新能源科技有限公司 | A kind of graphene superconducting far-infrared electric heating film and production method |
| CN115334699A (en) * | 2022-07-29 | 2022-11-11 | 安徽宇航派蒙健康科技股份有限公司 | Electrothermal film |
| CN115747776A (en) * | 2022-12-06 | 2023-03-07 | 德力西(湖州)新材料科技有限公司 | Nano semiconductor electrothermal film forming process, solution formula and preparation method |
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| CN115747776A (en) * | 2022-12-06 | 2023-03-07 | 德力西(湖州)新材料科技有限公司 | Nano semiconductor electrothermal film forming process, solution formula and preparation method |
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Application publication date: 20180717 |