CN105960035A - Self-controlled temperature electrothermal film production method and electrothermal film thereof - Google Patents
Self-controlled temperature electrothermal film production method and electrothermal film thereof Download PDFInfo
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- CN105960035A CN105960035A CN201610329138.5A CN201610329138A CN105960035A CN 105960035 A CN105960035 A CN 105960035A CN 201610329138 A CN201610329138 A CN 201610329138A CN 105960035 A CN105960035 A CN 105960035A
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- electrothermal film
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- carbon fibre
- fibre paper
- production method
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 57
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 29
- 239000004917 carbon fiber Substances 0.000 claims abstract description 29
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000001035 drying Methods 0.000 claims abstract description 18
- 239000000945 filler Substances 0.000 claims abstract description 18
- 238000007731 hot pressing Methods 0.000 claims abstract description 14
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 13
- 239000010439 graphite Substances 0.000 claims abstract description 13
- 238000003763 carbonization Methods 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 45
- 239000000835 fiber Substances 0.000 claims description 44
- 239000010410 layer Substances 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 15
- 230000004888 barrier function Effects 0.000 claims description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000005470 impregnation Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- LNEDETKPGKRXPT-UHFFFAOYSA-N acetic acid octadecane Chemical compound C(C)(=O)O.CCCCCCCCCCCCCCCCCC LNEDETKPGKRXPT-UHFFFAOYSA-N 0.000 claims description 3
- 239000002346 layers by function Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- -1 polyoxyethylene Polymers 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000001723 curing Methods 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000554 physical therapy Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
Classifications
-
- 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
- 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
- H05B3/145—Carbon only, e.g. carbon black, graphite
-
- 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
- H05B3/18—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor the conductor being embedded in an insulating material
Landscapes
- Paper (AREA)
- Resistance Heating (AREA)
- Surface Heating Bodies (AREA)
Abstract
The present invention relates to the electrothermal film product field, in particular to a self-controlled temperature electrothermal film production method and an electrothermal film thereof. The self-controlled temperature electrothermal film production method comprises the steps of orderly stirring and mixing the carbon fiber chopped silks, the graphite and the carbon fiber fillers according to a mass percent of 1:7:2, then carrying out the hot-pressing, low-temperature drying, curing, drying and carbonization operations orderly, and then adding electrodes, and finally press fitting to obtain the self-controlled temperature electrothermal film. According to the present invention, the carbon fiber fillers are added during the electrothermal film production process, so that the electrothermal film has a self-controlled temperature characteristic and does not burn due to an overhigh local temperature, and accordingly, the usage safety of a product is guaranteed.
Description
Technical field
The present invention relates to Electric radiant Heating Film product scope, be specifically related to production method and the Electric radiant Heating Film thereof of a kind of Self-controlling temperature electrothermal film.
Background technology
Far-infrared physiotherapy room is a kind of physical therapy product using far infrared radiator to produce far infrared radiation effect, and current far infrared radiator mainly uses Electric radiant Heating Film, the far-infrared radiation material of electrothermal tube one class.Electric radiant Heating Film is big due to heating area, human feeling is comfortable, market uses the most extensive, but traditional far-infrared electrothermal film uses metal electric heating silk or carbon fiber as heater, control temperature to use the mode of external temperature controller to carry out, owing to heating film is planar heat producing body, there is test point and select difficulty and easily occur that the overheated combustion case caused of local temperature occurs.
Summary of the invention
For overcoming drawbacks described above, the purpose of the present invention is i.e. to provide the production method of a kind of Self-controlling temperature electrothermal film and a kind of Self-controlling temperature electrothermal film.
It is an object of the invention to be achieved through the following technical solutions:
The present invention is the production method of a kind of Self-controlling temperature electrothermal film, including:
Carbon fiber chopped silk, graphite, carbon fiber filler are stirred mixing so that it is become liquid slurry；The concentration of described carbon fiber filler is 18～22mol/L, and in described liquid slurry, the mass percent between carbon fiber chopped silk, graphite, carbon fiber filler is: 1:7:2；
After this liquid slurry is coated on substrate surface, it is sent in hot press and carries out hot pressing, obtain carbon fibre paper；The temperature of described hot pressing is: 140 DEG C～300 DEG C, and the pressure of hot pressing is: 0.1MPa～0.4MPa, time a length of 1.5min～4min of hot pressing；
Described carbon fibre paper be impregnated in the polyvinyl alcohol water solution that concentration is 10%, take out carbon fibre paper after impregnating and carry out cold drying；
After cold drying, carbon fibre paper feeding low-temperature heat stove is heated, make carbon fibre paper complete resin solidification；The temperature of described heating is 200 DEG C, time a length of more than 2h of heating；
After by heating, impregnated in impregnation liquid by carbon fibre paper, described impregnation liquid is made up of by the mass ratio of 1:4:16 crystalline flake graphite, phenolic resin, methanol solution, takes out carbon fibre paper after impregnating and dries；
After completing to dry, being sent in inflated with nitrogen vacuum drying oven by carbon fibre paper and carry out carbonization, obtain the carbon fibre paper after carbonization, the temperature of described carbonization is more than 2000 DEG C；
Increase tinsel on carbon fibre paper in the carbonized, and in tinsel, connect binding post；
After connecting binding post, functional layer in the surface pressing of carbon fibre paper, obtain Self-controlling temperature electrothermal film.
Further, described carbon fiber chopped filament length degree is between 5mm～14mm.
Further, described carbon fiber filler is polyoxyethylene, comprising: octadecane acetic acid.
Further, the particle diameter of described graphite is 1～6 μm.
Further, the temperature of described drying is 90 DEG C, time a length of 3min of drying.
Further, time a length of 30min of described stirring mixing, the temperature of stirring mixing is 10 DEG C～30 DEG C.
Further, below the temperature 70 C of described cold drying, the time a length of 35min being dried.
Further, described carbon fiber filler hydrophilic-hydrophobic balance value is between 10～20.
The present invention is a kind of with the Self-controlling temperature electrothermal film obtained by the production method of Self-controlling temperature electrothermal film, including: carbon fibre paper, it is equipped with tinsel on described carbon fibre paper, it is connected to binding post on described tinsel, it is equipped with insulating barrier in the upper and lower surface of described carbon fibre paper, and the outer surface of an insulating barrier is provided with reflecting layer, the outer surface in described reflecting layer is provided with wearing layer.
Further, described insulating barrier is polyvinyl chloride layer, and described reflecting layer is aluminum film reflecting layer.
The present invention with the addition of carbon fiber filler in the production process of Electric radiant Heating Film so that the Electric radiant Heating Film of the present invention has possessed the characteristic of temp auto-controlled, does not haves the generation of the combustion case caused because local temperature is overheated, ensures the safety in utilization of product.
Accompanying drawing explanation
For ease of explanation, the present invention is described in detail by following preferred embodiment and accompanying drawing.
Fig. 1 is the production procedure schematic diagram of the production method of the present invention；
Fig. 2 is the Self-controlling temperature electrothermal film decomposition texture schematic diagram of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is described in more detail.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1, the present invention is the production method of Self-controlling temperature electrothermal film, including:
101. stirring mixing
Carbon fiber chopped silk, graphite, carbon fiber filler are stirred mixing so that it is become liquid slurry；The concentration of described carbon fiber filler is 18～22mol/L, and in described liquid slurry, the mass percent between carbon fiber chopped silk, graphite, carbon fiber filler is: 1:7:2；
102. hot pressing
After this liquid slurry is coated on substrate surface, it is sent in hot press and carries out hot pressing, obtain carbon fibre paper；The temperature of described hot pressing is: 140 DEG C～300 DEG C, and the pressure of hot pressing is: 0.1MPa～0.4MPa, time a length of 1.5min～4min of hot pressing；
103. cold drying
Described carbon fibre paper be impregnated in the polyvinyl alcohol water solution that concentration is 10%, take out carbon fibre paper after impregnating and carry out cold drying；
104. solidification
After cold drying, carbon fibre paper feeding low-temperature heat stove is heated, make carbon fibre paper complete resin solidification；The temperature of described heating is 200 DEG C, time a length of more than 2h of heating；
105. dry
After by heating, impregnated in impregnation liquid by carbon fibre paper, described impregnation liquid is made up of by the mass ratio of 1:4:16 crystalline flake graphite, phenolic resin, methanol solution, takes out carbon fibre paper after impregnating and dries；
106. carbonization
After completing to dry, being sent in inflated with nitrogen vacuum drying oven by carbon fibre paper and carry out carbonization, obtain the carbon fibre paper after carbonization, the temperature of described carbonization is more than 2000 DEG C；
107. increase electrode
Increasing tinsel on carbon fibre paper in the carbonized, this tinsel as electrode on carbon fibre paper, and will connect binding post in tinsel；
108. pressing
After connecting binding post, functional layer in the surface pressing of carbon fibre paper, obtain Self-controlling temperature electrothermal film.Its specifically by heat pressing process by the first insulating barrier, carbon fibre paper, the second insulating barrier, aluminum film reflecting layer, wearing layer is hot-forming i.e. completes Self-controlling temperature electrothermal film.
Further, described carbon fiber chopped filament length degree is between 5mm～14mm.
Further, described carbon fiber filler is polyoxyethylene, comprising: hydrophobic part alkane carbon atom is at the octadecane acetic acid (C of 8～more than 1018H37O-(CH2CH2O)8-H).
Further, the particle diameter of described graphite is 1～6 μm.
Further, the temperature of described drying is 90 DEG C, time a length of 3min of drying.
Further, time a length of 30min of described stirring mixing, the temperature of stirring mixing is 10 DEG C～30 DEG C.
Further, below the temperature 70 C of described cold drying, the time a length of 35min being dried.
Further, described carbon fiber filler hydrophilic-hydrophobic balance value is between 10～20.
Refer to Fig. 2, the present invention is a kind of with the Self-controlling temperature electrothermal film obtained by the production method of Self-controlling temperature electrothermal film, including: carbon fibre paper 4, it is equipped with tinsel 2 on described carbon fibre paper 4, being connected to binding post 3 on described tinsel 2, described binding post 3, for being connected with outside power supply, the upper and lower surface of described carbon fibre paper 4 is respectively equipped with first insulating barrier the 1, second insulating barrier 5, and second the outer surface of insulating barrier 5 be provided with reflecting layer 6, the outer surface in described reflecting layer 6 is provided with wearing layer 7.Its structure of the Self-controlling temperature electrothermal film of the present invention makes heat mainly send from the first insulating barrier 1 so that heat energy can be fully utilized.
Further, described insulating barrier is polyvinyl chloride layer, and described reflecting layer 6 is aluminum film reflecting layer.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.
Claims (10)
1. the production method of a Self-controlling temperature electrothermal film, it is characterised in that including:
Carbon fiber chopped silk, graphite, carbon fiber filler are stirred mixing so that it is become liquid slurry；The concentration of described carbon fiber filler is 18～22mol/L, and in described liquid slurry, the mass percent between carbon fiber chopped silk, graphite, carbon fiber filler is: 1:7:2；
After this liquid slurry is coated on substrate surface, it is sent in hot press and carries out hot pressing, obtain carbon fibre paper；The temperature of described hot pressing is: 140 DEG C～300 DEG C, and the pressure of hot pressing is: 0.1MPa～0.4MPa, time a length of 1.5min～4min of hot pressing；
Described carbon fibre paper be impregnated in the polyvinyl alcohol water solution that concentration is 10%, take out carbon fibre paper after impregnating and carry out cold drying；
After cold drying, carbon fibre paper feeding low-temperature heat stove is heated, make carbon fibre paper complete resin solidification；The temperature of described heating is 200 DEG C, time a length of more than 2h of heating；
After by heating, impregnated in impregnation liquid by carbon fibre paper, described impregnation liquid is made up of by the mass ratio of 1:4:16 crystalline flake graphite, phenolic resin, methanol solution, takes out carbon fibre paper after impregnating and dries；
After completing to dry, being sent in inflated with nitrogen vacuum drying oven by carbon fibre paper and carry out carbonization, obtain the carbon fibre paper after carbonization, the temperature of described carbonization is more than 2000 DEG C；
Increase tinsel on carbon fibre paper in the carbonized, and in tinsel, connect binding post；
After connecting binding post, functional layer in the surface pressing of carbon fibre paper, obtain Self-controlling temperature electrothermal film.
The production method of Self-controlling temperature electrothermal film the most according to claim 1, it is characterised in that described carbon fiber chopped filament length degree is between 5mm～14mm.
The production method of Self-controlling temperature electrothermal film the most according to claim 2, it is characterised in that described carbon fiber filler is polyoxyethylene, comprising: octadecane acetic acid.
The production method of Self-controlling temperature electrothermal film the most according to claim 3, it is characterised in that the particle diameter of described graphite is 1～6 μm.
The production method of Self-controlling temperature electrothermal film the most according to claim 4, it is characterised in that the temperature of described drying is 90 DEG C, time a length of 3min of drying.
The production method of Self-controlling temperature electrothermal film the most according to claim 5, it is characterised in that time a length of 30min of described stirring mixing, the temperature of stirring mixing is 10 DEG C～30 DEG C.
The production method of Self-controlling temperature electrothermal film the most according to claim 6, it is characterised in that below the temperature 70 C of described cold drying, the time a length of 35min being dried.
The production method of Self-controlling temperature electrothermal film the most according to claim 7, it is characterised in that described carbon fiber filler hydrophilic-hydrophobic balance value is between 10～20.
9. one kind with the Self-controlling temperature electrothermal film obtained by the production method of the Self-controlling temperature electrothermal film described in claim 1, it is characterized in that, including: carbon fibre paper, it is equipped with tinsel on described carbon fibre paper, it is connected to binding post on described tinsel, being equipped with insulating barrier in the upper and lower surface of described carbon fibre paper, and the outer surface of an insulating barrier is provided with reflecting layer, the outer surface in described reflecting layer is provided with wearing layer.
Self-controlling temperature electrothermal film the most according to claim 9, it is characterised in that described insulating barrier is polyvinyl chloride layer, described reflecting layer is aluminum film reflecting layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610329138.5A CN105960035B (en) | 2016-05-18 | 2016-05-18 | A kind of production method and its Electric radiant Heating Film of Self-controlling temperature electrothermal film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610329138.5A CN105960035B (en) | 2016-05-18 | 2016-05-18 | A kind of production method and its Electric radiant Heating Film of Self-controlling temperature electrothermal film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105960035A true CN105960035A (en) | 2016-09-21 |
| CN105960035B CN105960035B (en) | 2019-05-14 |
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| CN201610329138.5A Active CN105960035B (en) | 2016-05-18 | 2016-05-18 | A kind of production method and its Electric radiant Heating Film of Self-controlling temperature electrothermal film |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106455154A (en) * | 2016-09-28 | 2017-02-22 | 常州中科特炭新能源科技有限公司 | Preparation technology of low-voltage olefince-carbon flexible electrothermal film |
| CN110218352A (en) * | 2019-05-09 | 2019-09-10 | 乐福之家纳米材料有限责任公司 | A kind of production technology of graphene Electric radiant Heating Film |
| CN111149423A (en) * | 2017-09-27 | 2020-05-12 | 艾沃卫科技股份有限公司 | Carbon felt heating device and manufacturing method thereof |
| EP3641490A4 (en) * | 2017-06-13 | 2021-03-17 | Mozu Co., Ltd. | Far-infrared radiation sheet, method for manufacturing far-infrared radiation sheet, and far-infrared radiation method |
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|---|---|---|---|---|
| CN1124907A (en) * | 1994-12-06 | 1996-06-19 | 浦子荣 | Carbon fibre composite paper for conduction heating and preparing process thereof |
| CN1274783A (en) * | 2000-04-18 | 2000-11-29 | 太原东立信息产业有限公司 | Electrothermal high-temperature carbon fiber paper and its making process |
| EP2175688A1 (en) * | 2008-10-07 | 2010-04-14 | Ching-Ling Pan | Activated carbon fiber soft electric heating product and manufacturing method thereof |
| CN202043305U (en) * | 2011-02-01 | 2011-11-16 | 吉林大学 | High-temperature-resisting carbon fiber paper soft composite electric heating slice |
| CN104661339A (en) * | 2013-11-25 | 2015-05-27 | 大连康赛谱科技发展有限公司 | Electrostatically-manufactured conductive heating carbon fiber composite material |
-
2016
- 2016-05-18 CN CN201610329138.5A patent/CN105960035B/en active Active
Patent Citations (5)
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|---|---|---|---|---|
| CN1124907A (en) * | 1994-12-06 | 1996-06-19 | 浦子荣 | Carbon fibre composite paper for conduction heating and preparing process thereof |
| CN1274783A (en) * | 2000-04-18 | 2000-11-29 | 太原东立信息产业有限公司 | Electrothermal high-temperature carbon fiber paper and its making process |
| EP2175688A1 (en) * | 2008-10-07 | 2010-04-14 | Ching-Ling Pan | Activated carbon fiber soft electric heating product and manufacturing method thereof |
| CN202043305U (en) * | 2011-02-01 | 2011-11-16 | 吉林大学 | High-temperature-resisting carbon fiber paper soft composite electric heating slice |
| CN104661339A (en) * | 2013-11-25 | 2015-05-27 | 大连康赛谱科技发展有限公司 | Electrostatically-manufactured conductive heating carbon fiber composite material |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106455154A (en) * | 2016-09-28 | 2017-02-22 | 常州中科特炭新能源科技有限公司 | Preparation technology of low-voltage olefince-carbon flexible electrothermal film |
| EP3641490A4 (en) * | 2017-06-13 | 2021-03-17 | Mozu Co., Ltd. | Far-infrared radiation sheet, method for manufacturing far-infrared radiation sheet, and far-infrared radiation method |
| US11343880B2 (en) | 2017-06-13 | 2022-05-24 | Mozu Co., Ltd | Far-infrared ray radiation sheet, method of manufacturing far-infrared ray radiation sheet, and method of radiating far-infrared rays |
| CN111149423A (en) * | 2017-09-27 | 2020-05-12 | 艾沃卫科技股份有限公司 | Carbon felt heating device and manufacturing method thereof |
| CN110218352A (en) * | 2019-05-09 | 2019-09-10 | 乐福之家纳米材料有限责任公司 | A kind of production technology of graphene Electric radiant Heating Film |
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| CN105960035B (en) | 2019-05-14 |
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Effective date of registration: 20190423 Address after: 230000 AJ-9 Block 669 Changjiang West Road, Hefei City, Anhui Province Applicant after: Rongjie Health Technology Co., Ltd. Address before: 518000 Zhongying Jewelry Factory Building 2 A4, 9-storey A4-903, 31 Bulan Road, Nanwan Street, Longgang District, Shenzhen City, Guangdong Province Applicant before: Shenzhen Josen Industrial Co., Ltd. |
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