CN109729605A - A kind of electric heating film and preparation method thereof - Google Patents
A kind of electric heating film and preparation method thereof Download PDFInfo
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- CN109729605A CN109729605A CN201811607101.XA CN201811607101A CN109729605A CN 109729605 A CN109729605 A CN 109729605A CN 201811607101 A CN201811607101 A CN 201811607101A CN 109729605 A CN109729605 A CN 109729605A
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The present invention provides a kind of electric heating film and preparation method thereof, belongs to exothermic material preparation technical field.The exothermic material is made of electric heating layer and thermal insulation layer, insulated thermal insulating layer, electric heating layer is formed by being coated on matrix after mixed powder and adhesive 2-3:10 in mass ratio mixing, wherein, mixed powder is that 15-20:1:3:5 mixing forms by graphite powder, Zr powder, Y powder and the Cu powder within 50nm partial size in mass ratio, and adhesive is made of the mixing of dimethylbenzene, dimethylformamide, polyurethane and polyimides Polymer Solution；Basis material is Kapton.Electric heating film of the invention is optimized by conductive material, improve the heating efficiency of material, by being doped modification to heat-conducting layer, improve pyroconductivity, it is used as insulated thermal insulating layer that can reduce heat loss using the aluminium and insulating layer of tool high heat reflectivity are compound, by the combination of three means, the thermal efficiency can be further increased on the basis of existing technology.
Description
[technical field]
The present invention relates to exothermic material preparation technical fields, and in particular to a kind of electric heating film and preparation method thereof.
[background technique]
Electric heating film, the plane heater element being made of electrically insulating material with the heating resistor material encapsulated in it,
It is a kind of heating element emerging in recent years, the characteristics of it has drawn two kinds of heating elements of PTC and conductive coating is fabricated, main
It is used for heating of house and environment temperature and keeps aspect, when work converts electrical energy into thermal energy, and by thermal energy mainly with radiation
Form is transmitted outward, and electric heating film has had raising by a relatively large margin relative to the heating efficiency of heating wire, but it is improving liter
Warm speed, heating temperature, the raising thermal efficiency, improving pyroconductivity etc., there are also spaces to be hoisted.
[summary of the invention]
Goal of the invention of the invention is: in view of the above problems, a kind of electric heating film and preparation method thereof is provided,
Electric heating film of the invention is optimized by conductive material, improves the heating efficiency of material, by being doped to heat-conducting layer
It is modified, pyroconductivity is improved, heat can be reduced using the aluminium and insulating layer of tool high heat reflectivity are compound as insulated thermal insulating layer and dissipates
It loses, by the combination of three means, the thermal efficiency can be further increased on the basis of existing technology.
To achieve the goals above, The technical solution adopted by the invention is as follows:
A kind of electric heating film, be by electric heating layer and be respectively coated by electric heating layer tow sides thermal insulation layer, absolutely
Edge thermal insulation layer composition, the electricity heating layer are by being coated in electric heating layer after mixed powder and adhesive 2-3:10 in mass ratio mixing
It is formed on matrix, wherein it is 15-20 that mixed powder is by graphite powder, Zr powder, Y powder and the Cu powder within 50nm partial size in mass ratio:
1:3:5 mixing composition, adhesive is to be matched by dimethylbenzene, dimethylformamide, polyurethane and polyimides Polymer Solution by quality
Than being 1:2:1:4-6 mixing composition；The electricity heating layer basis material is Kapton.
Preferably, the thermal insulation layer is using the polyimide film doped with 30-36% silicon nitride, and by with
Lower method obtains: be solid-to-liquid ratio according to molar ratio by 4,4 '-diamino-diphenyl ethers being that 1:13-15 is dissolved in N, N- dimethylacetamide
It is a small amount of that pyromellitic acid anhydride, equal benzene tetramethyl is repeatedly added after stirring is completely dissolved to 4,4 '-diamino-diphenyl ethers in amine
The molar ratio of acid dianhydride and 4,4 '-diamino-diphenyl ethers obtains polyamic acid solution to react completely for 1:1, then by nitrogen
SiClx powder is added in polyamic acid solution, is stirred 10-15 minutes under the revolving speed of 200-300 turns/min, keeps its dispersion equal
Even, centrifugation is coated on glass after removing bubble removing, is put into drying machine, after the solvent is volatilized, is obtained silicon nitride solid content
For the polyimide film of 30-36%, the thickness control of film is in 0.12mm or less.
Preferably, the insulated thermal insulating layer includes polyimide flex basal layer, and in polyimide flex basal layer
One layer of aluminium film is coated on one face.
Preferably, the aluminium film uses magnetically controlled DC sputtering technology, and aluminium film is with a thickness of 0.03-0.05mm.
Preferably, after the polyamic acid solution is coated on glass, in drying machine by the way of temperature programming into
Row drying is warming up to after from room temperature to 150 DEG C of heat preservation 50-60min, then with the speed of 30 DEG C/min with the speed of 20 DEG C/min
300 DEG C of heat preservation 30-40min then stop heat preservation, dry to natural cooling.
The preparation method of above-mentioned electric heating film, comprising the following steps:
(1) preparation of electric heating layer slurry: it is in mass ratio by graphite powder, Zr powder, Y powder and the Cu powder within 50nm partial size
15-20:1:3:5 mixes to obtain mixed powder after weighing, and is then 2-3:10 to mixed powder according to the mass ratio of mixed powder and adhesive
Middle addition adhesive is sufficiently mixed, grinds to get electric heating layer slurry, wherein adhesive be by dimethylbenzene, dimethylformamide,
Polyurethane and polyimides Polymer Solution are 1:2:1:4-6 mixing compositions by quality proportioning；
(2) electric heating layer slurry is coated on polyimide matrix material by coating machine, heated drying equipment baking
After immerse electric heating layer and be solidificated on polyimide matrix material to form electric heating film, the temperature in baking process be by
100 DEG C -300 DEG C gradually rise；
(3) implant electrode on electric heating film, copper foil for electrode or uses aluminium foil；
(4) thermal insulation layer, insulated thermal insulating layer are wrapped up respectively on the two sides of electric heating film with laminating machine, when package, insulation
Heat-conducting layer and electric heating layer are coated with a face contact of mixed powder, insulated thermal insulating layer be coated with aluminium film one side and electric heating layer matrix material
Material contact.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1, electric heating film of the invention is optimized by conductive material, by mixing Cu powder and dilute in graphite powder
Zr powder, Y powder in soil, and certain mixed proportion is controlled, be conducive to raising electric heating film by electric energy and be converted to infrared radiant energy
Transfer efficiency.
2, insulating layer is required structure in electric heating film, but the material that insulating layer uses is generally high molecular polymer,
With lower thermal coefficient, therefore the decaying of heat can be brought, electric heating film of the invention is by being doped heat-conducting layer
It is modified, the silicon nitride of good heat conductivity is adulterated in polyimides, is improved the thermal conductivity of insulating layer entirety, is reduced the damage of heat
It loses, further increases the heat conduction efficiency of electric heating film.
3, electric heating film generally only needs single side to conduct heat in use environment, it is therefore desirable to which another side has preferable exhausted
Hot, to avoid the loss of heat, the present invention is used as insulated thermal insulating layer can using the aluminium and insulating layer that have high heat reflectivity are compound
Heat loss is reduced, more heats is exported from heat-conducting layer, can further improve the thermal efficiency of heating film.
[specific embodiment]
In order to more clearly express the present invention, below by way of specific embodiment, the invention will be further described.
Embodiment 1
A kind of electric heating film, be by electric heating layer and be respectively coated by electric heating layer tow sides thermal insulation layer, absolutely
Edge thermal insulation layer composition, the electricity heating layer are by being coated in electric heating layer base after mixed powder and adhesive 2:10 in mass ratio mixing
It is formed on body, wherein it is 15:1:3:5 that mixed powder is by graphite powder, Zr powder, Y powder and the Cu powder within 50nm partial size in mass ratio
Mixing composition, it by quality proportioning is 1 that adhesive, which is by dimethylbenzene, dimethylformamide, polyurethane and polyimides Polymer Solution:
2:1:4 mixing composition；The electricity heating layer basis material is Kapton.
The preparation method of the electric heating film sequentially includes the following steps:
(1) thermal insulation layer is prepared, thermal insulation layer passes through using the polyimide film doped with 30% silicon nitride
Following methods obtain: be solid-to-liquid ratio according to molar ratio by 4,4 '-diamino-diphenyl ethers being that 1:13 is dissolved in N, N- dimethylacetamide
It is a small amount of that pyromellitic acid anhydride, equal benzene tetramethyl is repeatedly added after stirring is completely dissolved to 4,4 '-diamino-diphenyl ethers in amine
The molar ratio of acid dianhydride and 4,4 '-diamino-diphenyl ethers obtains polyamic acid solution to react completely for 1:1, then by nitrogen
SiClx powder is added in polyamic acid solution, stirs 15 minutes under the revolving speed of 200 turns/min, it is made to be uniformly dispersed, centrifugation
Be coated on glass, be put into drying machine after removing bubble removing, is dried by the way of temperature programming, i.e., with 20 DEG C/
The speed of min is warming up to 300 DEG C of heat preservation 30min after from room temperature to 150 DEG C of heat preservation 50min, then with the speed of 30 DEG C/min, then
Stop heat preservation, it is dry to natural cooling, the polyimide film that silicon nitride solid content is 30% is obtained, the thickness control of film exists
0.12mm or less.
(2) it prepares insulated thermal insulating layer: using magnetically controlled DC sputtering technology, plated in a face of polyimide flex basal layer
Upper one layer of aluminium film, and by control sputtering power, gas pressure and tape running speed, the aluminium film with a thickness of 0.03-0.05mm is made.
(3) preparation of electric heating layer slurry: it is in mass ratio by graphite powder, Zr powder, Y powder and the Cu powder within 50nm partial size
15:1:3:5 mixes to obtain mixed powder after weighing, and is then that 2:10 is added into mixed powder according to the mass ratio of mixed powder and adhesive
Adhesive is sufficiently mixed, the revolving speed grinding 15min in grinder with 800r/min is to get electric heating layer slurry, wherein glue
It by quality proportioning is 1:2:1:4 mixing group that stick, which is by dimethylbenzene, dimethylformamide, polyurethane and polyimides Polymer Solution,
At；
(4) electric heating layer slurry is coated on polyimide matrix material by coating machine, heated drying equipment baking
After immerse electric heating layer and be solidificated on polyimide matrix material to form electric heating film, the temperature in baking process be by
100 DEG C -300 DEG C gradually rise, and heating rate is controlled at 30min/ DEG C；
(5) implant electrode on electric heating film, copper foil for electrode or uses aluminium foil；
(6) thermal insulation layer, insulated thermal insulating layer are wrapped up respectively on the two sides of electric heating film with laminating machine, when package, insulation
Heat-conducting layer and electric heating layer are coated with a face contact of mixed powder, and insulated thermal insulating layer is coated with the one side and the matrix of electric heating layer of aluminium film
Material.
Embodiment 2
A kind of electric heating film, be by electric heating layer and be respectively coated by electric heating layer tow sides thermal insulation layer, absolutely
Edge thermal insulation layer composition, the electricity heating layer are by being coated in electric heating layer after mixed powder and adhesive 2.5:10 in mass ratio mixing
It is formed on matrix, wherein it is 18:1 that mixed powder is by graphite powder, Zr powder, Y powder and the Cu powder within 50nm partial size in mass ratio:
3:5 mixing composition, adhesive is by dimethylbenzene, dimethylformamide, polyurethane and polyimides Polymer Solution by quality proportioning
It is 1:2:1:5 mixing composition；The electricity heating layer basis material is Kapton.
The preparation method of the electric heating film sequentially includes the following steps:
(1) thermal insulation layer is prepared, thermal insulation layer passes through using the polyimide film doped with 32% silicon nitride
Following methods obtain: be solid-to-liquid ratio according to molar ratio by 4,4 '-diamino-diphenyl ethers being that 1:14 is dissolved in N, N- dimethylacetamide
It is a small amount of that pyromellitic acid anhydride, equal benzene tetramethyl is repeatedly added after stirring is completely dissolved to 4,4 '-diamino-diphenyl ethers in amine
The molar ratio of acid dianhydride and 4,4 '-diamino-diphenyl ethers obtains polyamic acid solution to react completely for 1:1, then by nitrogen
SiClx powder is added in polyamic acid solution, is stirred 12 minutes under the revolving speed of 250r/min, so that it is uniformly dispersed, centrifugation is gone
It is coated on glass, is put into drying machine after bubble removing, is dried by the way of temperature programming, i.e., with 20 DEG C/min
Speed be warming up to 300 DEG C of heat preservation 40min after from room temperature to 150 DEG C of heat preservation 60min, then with the speed of 30 DEG C/min, then stop
Only keep the temperature, it is dry to natural cooling, the polyimide film that silicon nitride solid content is 33% is obtained, the thickness control of film is in 0.12mm
Below.
(2) it prepares insulated thermal insulating layer: using magnetically controlled DC sputtering technology, plated in a face of polyimide flex basal layer
Upper one layer of aluminium film, and by control sputtering power, gas pressure and tape running speed, the aluminium film with a thickness of 0.03-0.05mm is made.
(3) preparation of electric heating layer slurry: it is in mass ratio by graphite powder, Zr powder, Y powder and the Cu powder within 50nm partial size
18:1:3:5 mixes to obtain mixed powder after weighing, and is then that 2.5:10 adds into mixed powder according to the mass ratio of mixed powder and adhesive
Enter adhesive, be sufficiently mixed, the revolving speed grinding 12min in grinder with 1000r/min is to get electric heating layer slurry, wherein
Adhesive be by dimethylbenzene, dimethylformamide, polyurethane and polyimides Polymer Solution by quality proportioning be 1:2:1:5 mixing
Composition；
(4) electric heating layer slurry is coated on polyimide matrix material by coating machine, heated drying equipment baking
After immerse electric heating layer and be solidificated on polyimide matrix material to form electric heating film, the temperature in baking process be by
100 DEG C -300 DEG C gradually rise, and heating rate is controlled at 30min/ DEG C；
(5) implant electrode on electric heating film, copper foil for electrode or uses aluminium foil；
(6) thermal insulation layer, insulated thermal insulating layer are wrapped up respectively on the two sides of electric heating film with laminating machine, when package, insulation
Heat-conducting layer and electric heating layer are coated with a face contact of mixed powder, and insulated thermal insulating layer is coated with the one side and the matrix of electric heating layer of aluminium film
Material.
Embodiment 3
A kind of electric heating film, be by electric heating layer and be respectively coated by electric heating layer tow sides thermal insulation layer, absolutely
Edge thermal insulation layer composition, the electricity heating layer are by being coated in electric heating layer base after mixed powder and adhesive 3:10 in mass ratio mixing
It is formed on body, wherein it is 20:1:3:5 that mixed powder is by graphite powder, Zr powder, Y powder and the Cu powder within 50nm partial size in mass ratio
Mixing composition, it by quality proportioning is 1 that adhesive, which is by dimethylbenzene, dimethylformamide, polyurethane and polyimides Polymer Solution:
2:1:6 mixing composition；The electricity heating layer basis material is Kapton.
The preparation method of the electric heating film sequentially includes the following steps:
(1) prepare thermal insulation layer, thermal insulation layer using the polyimide film doped with 30-36% silicon nitride,
It obtains by the following method: be solid-to-liquid ratio according to molar ratio by 4,4 '-diamino-diphenyl ethers being that 1:15 is dissolved in N, N- dimethyl
It is a small amount of that pyromellitic acid anhydride, equal benzene is repeatedly added after stirring is completely dissolved to 4,4 '-diamino-diphenyl ethers in acetamide
The molar ratio of tetracarboxylic acid dianhydride and 4,4 '-diamino-diphenyl ethers obtains polyamic acid solution, then to react completely for 1:1
Alpha-silicon nitride powders are added in polyamic acid solution, is stirred 15 minutes under the revolving speed of 300r/min, it is made to be uniformly dispersed, from
The heart is coated on glass after removing bubble removing, is put into drying machine, is dried by the way of temperature programming, i.e., with 20
DEG C/speed of min is warming up to 300 DEG C of heat preservation 35min after from room temperature to 150 DEG C of heat preservation 50min, then with the speed of 30 DEG C/min,
Then stop heat preservation, it is dry to natural cooling, the polyimide film that silicon nitride solid content is 36% is obtained, the thickness control of film exists
0.12mm or less.
(2) it prepares insulated thermal insulating layer: using magnetically controlled DC sputtering technology, plated in a face of polyimide flex basal layer
Upper one layer of aluminium film, and by control sputtering power, gas pressure and tape running speed, the aluminium film with a thickness of 0.03-0.05mm is made.
(3) preparation of electric heating layer slurry: it is in mass ratio by graphite powder, Zr powder, Y powder and the Cu powder within 50nm partial size
20:1:3:5 mixes to obtain mixed powder after weighing, and is then that 2-3:10 adds into mixed powder according to the mass ratio of mixed powder and adhesive
Enter adhesive, be sufficiently mixed, the revolving speed grinding 10min in grinder with 1200r/min is to get electric heating layer slurry, wherein
Adhesive be by dimethylbenzene, dimethylformamide, polyurethane and polyimides Polymer Solution by quality proportioning be 1:2:1:6 mixing
Composition；
(4) electric heating layer slurry is coated on polyimide matrix material by coating machine, heated drying equipment baking
After immerse electric heating layer and be solidificated on polyimide matrix material to form electric heating film, the temperature in baking process be by
100 DEG C -300 DEG C gradually rise, and heating rate is controlled at 30min/ DEG C；
(5) implant electrode on electric heating film, copper foil for electrode or uses aluminium foil；
(6) thermal insulation layer, insulated thermal insulating layer are wrapped up respectively on the two sides of electric heating film with laminating machine, when package, insulation
Heat-conducting layer and electric heating layer are coated with a face contact of mixed powder, and insulated thermal insulating layer is coated with the one side and the matrix of electric heating layer of aluminium film
Material.
Comparative example 1
This example and embodiment 2 the difference is that: mixed powder is replaced using the graphite powder of equivalent, thermal insulation layer and absolutely
Edge thermal insulation layer is all made of polyimide film, does not do modification.
Comparative example 2
This example and embodiment 2 the difference is that: the Zr powder in mixed powder is replaced using the graphite powder of equivalent, and insulation is led
Silicon nitride in thermosphere is replaced using aluminium nitride.
Heating property test:
Test 1: heating rate test
In order to keep comparison result more acurrate, in production, the thickness of each layer of the electric heating film of each embodiment and comparative example is connect
It is close consistent, heating film made of embodiment 1-3 and comparative example is fabricated to the size that length and width is respectively 80mm × 10mm
Electrode is connected the power supply that voltage is 10V, (had with the front that the probe of temperature measuring device compresses electric heating film by consistent square piece
Thermally conductive insulating layer) and reverse side (have heat-insulating layer while), tested when energization 1min, 5min and 10min
The temperature of electric heating film tow sides, result are as shown in table 1 below.
The temperature test result on 1 heating film two sides of table
From the results shown in Table 1, the heating film in 1-3 of embodiment of the present invention group adds under the premise of power supply is identical
The heat identical time, faster than the electric heating film in comparative example 1 and 2, the temperature that temperature maintains after stablizing is higher for heating rate, says
The bright present invention improves in terms of exothermic material and thermally conductive insulating layer, it is made to be rapidly heated aspect advantageously.Embodiment 1-3
The temperature difference of electric heating film front and back sides is bigger in group, illustrate the present invention by setting the reflecting layer Al, make its insulated heat film have compared with
Good heat-proof quality.
Test two: the thermal efficiency
In order to keep comparison result more acurrate, in production, the thickness of each layer of the electric heating film of each embodiment and comparative example is connect
It is close consistent, heating film made of embodiment 1-3 and comparative example is fabricated to the size that length and width is respectively 200mm × 10mm
Consistent square piece, the power consumption when front middle portion temperature of heating film is warming up to 300 DEG C by test, result are as shown in table 2 below.
2 heating film power consumption test result of table
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | |
| Power consumption (W) | 80.3 | 81.6 | 83.7 | 128.2 | 118.7 |
From the results shown in Table 1, the heating film in 1-3 of embodiment of the present invention group with the fever in comparative example 1 and 2
When film is warming up to 300 DEG C, electric heating film more power saving in embodiment 1-3, illustrate the present invention thermal efficiency advantageously.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered the scope of the patents of the present invention.
Claims (6)
1. a kind of electric heating film, it is characterised in that: be by electric heating layer and to be respectively coated by the insulation in electric heating layer tow sides
Heat-conducting layer, insulated thermal insulating layer composition, the electricity heating layer are by coating after mixed powder and adhesive 2-3:10 in mass ratio mixing
It is formed on electric heating layer matrix, wherein mixed powder is by graphite powder, Zr powder, Y powder and the Cu powder within 50nm partial size by quality
It is formed than being mixed for 15-20:1:3:5, adhesive is molten by dimethylbenzene, dimethylformamide, polyurethane and polyimides macromolecule
Liquid is 1:2:1:4-6 mixing composition by quality proportioning；The electricity heating layer basis material is Kapton.
2. a kind of electric heating film according to claim 1, it is characterised in that: the thermal insulation layer using doped with
The polyimide film of 30-36% silicon nitride, and obtain by the following method: by 4,4 '-diamino-diphenyl ethers according to molar ratio
It is that 1:13-15 is dissolved in n,N-dimethylacetamide for solid-to-liquid ratio, after stirring is completely dissolved to 4,4 '-diamino-diphenyl ethers,
A small amount of that pyromellitic acid anhydride is repeatedly added, pyromellitic acid anhydride and 4, the molar ratio of 4 '-diamino-diphenyl ethers is 1:1,
To react completely, obtain polyamic acid solution, then alpha-silicon nitride powders be added in polyamic acid solution, 200-300 turn/
It is stirred 10-15 minutes under the revolving speed of min, it is made to be uniformly dispersed, centrifugation is coated on glass after removing bubble removing, is put into drying
In machine, after the solvent is volatilized, the polyimide film that silicon nitride solid content is 30-36% is obtained, the thickness control of film is in 0.12mm
Below.
3. a kind of electric heating film according to claim 2, it is characterised in that: the insulated thermal insulating layer includes that polyimides is soft
Property basal layer, and one layer of aluminium film is coated on a face of polyimide flex basal layer.
4. a kind of electric heating film according to claim 3, it is characterised in that: the aluminium film uses magnetically controlled DC sputtering skill
Art, and aluminium film is with a thickness of 0.03-0.05mm.
5. a kind of electric heating film according to claim 2, it is characterised in that: the polyamic acid solution is coated on glass
Afterwards, it is dried, i.e., is kept the temperature with the speed of 20 DEG C/min from room temperature to 150 DEG C by the way of temperature programming in drying machine
After 50-60min, then 300 DEG C of heat preservation 30-40min are warming up to the speed of 30 DEG C/min, then stop heat preservation, to natural cooling
It is dry.
6. a kind of preparation method of electric heating film according to any one of claim 3-5, it is characterised in that: including following
Step:
(1) preparation of electric heating layer slurry: being 15- by graphite powder, Zr powder, Y powder and the Cu powder within 50nm partial size in mass ratio
20:1:3:5 mixes to obtain mixed powder after weighing, and is then that 2-3:10 adds into mixed powder according to the mass ratio of mixed powder and adhesive
Enter adhesive, is sufficiently mixed, grinds to get electric heating layer slurry, wherein adhesive is by dimethylbenzene, dimethylformamide, poly- ammonia
Ester and polyimides Polymer Solution are 1:2:1:4-6 mixing compositions by quality proportioning；
(2) electric heating layer slurry is coated on Kapton basis material by coating machine, heated drying equipment baking
After immerse electric heating layer and be solidificated on polyimide matrix material to form electric heating film, the temperature in baking process be by
100 DEG C -300 DEG C gradually rise；
(3) implant electrode on electric heating film, copper foil for electrode or uses aluminium foil；
(4) thermal insulation layer, insulated thermal insulating layer are wrapped up respectively on the two sides of electric heating film with laminating machine, when package, insulating heat-conductive
Layer and electricity heating layer are coated with a face contact of electric heating layer slurry, insulated thermal insulating layer be coated with aluminium film one side and electric heating layer matrix
Material.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110769527A (en) * | 2019-09-12 | 2020-02-07 | 宁波科诺佳新材料有限公司 | Organic high-temperature electric heating composite film and preparation method thereof |
| CN110933785A (en) * | 2019-11-28 | 2020-03-27 | 中国空间技术研究院 | Intelligent temperature control heater |
| CN113163529A (en) * | 2020-07-07 | 2021-07-23 | 安徽宇航派蒙健康科技股份有限公司 | Method for preparing graphene high-temperature electrothermal film based on LIG method |
| CN113667936A (en) * | 2021-09-06 | 2021-11-19 | 湖北中烟工业有限责任公司 | High-temperature oxidation-resistant ultrathin heating film and preparation method thereof |
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| CN110933785A (en) * | 2019-11-28 | 2020-03-27 | 中国空间技术研究院 | Intelligent temperature control heater |
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| CN113667936A (en) * | 2021-09-06 | 2021-11-19 | 湖北中烟工业有限责任公司 | High-temperature oxidation-resistant ultrathin heating film and preparation method thereof |
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