CN108574999A - Cotton thread grid-net type electrothermal carbon fibre membrane and its manufacturing method - Google Patents
Cotton thread grid-net type electrothermal carbon fibre membrane and its manufacturing method Download PDFInfo
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- CN108574999A CN108574999A CN201710144059.1A CN201710144059A CN108574999A CN 108574999 A CN108574999 A CN 108574999A CN 201710144059 A CN201710144059 A CN 201710144059A CN 108574999 A CN108574999 A CN 108574999A
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- Prior art keywords
- cotton thread
- grid
- fibre membrane
- carbon fibre
- plastics
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920000742 Cotton Polymers 0.000 title claims abstract description 62
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 32
- 239000000835 fiber Substances 0.000 title claims abstract description 20
- 239000012528 membrane Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000004033 plastic Substances 0.000 claims abstract description 48
- 229920003023 plastic Polymers 0.000 claims abstract description 48
- 238000007654 immersion Methods 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 27
- 238000009954 braiding Methods 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 18
- 239000012943 hotmelt Substances 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 239000011812 mixed powder Substances 0.000 claims description 6
- 238000005253 cladding Methods 0.000 claims description 5
- 239000003963 antioxidant agent Substances 0.000 claims description 4
- 230000003078 antioxidant effect Effects 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000002270 dispersing agent Substances 0.000 claims description 4
- 229920000615 alginic acid Polymers 0.000 claims description 3
- 229960001126 alginic acid Drugs 0.000 claims description 3
- 235000010443 alginic acid Nutrition 0.000 claims description 3
- 239000000783 alginic acid Substances 0.000 claims description 3
- 150000004781 alginic acids Chemical class 0.000 claims description 3
- 150000001450 anions Chemical class 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 3
- 235000013312 flour Nutrition 0.000 claims description 3
- 229910052732 germanium Inorganic materials 0.000 claims description 3
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 3
- 229910052900 illite Inorganic materials 0.000 claims description 3
- VGIBGUSAECPPNB-UHFFFAOYSA-L nonaaluminum;magnesium;tripotassium;1,3-dioxido-2,4,5-trioxa-1,3-disilabicyclo[1.1.1]pentane;iron(2+);oxygen(2-);fluoride;hydroxide Chemical compound [OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[F-].[Mg+2].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].[K+].[Fe+2].O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2 VGIBGUSAECPPNB-UHFFFAOYSA-L 0.000 claims description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 238000009941 weaving Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 3
- 230000002269 spontaneous effect Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000001746 injection moulding Methods 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 241000219146 Gossypium Species 0.000 description 41
- 238000000034 method Methods 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 244000299507 Gossypium hirsutum Species 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 238000003825 pressing Methods 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
- H05B3/342—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in textiles
-
- 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
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Woven Fabrics (AREA)
- Surface Heating Bodies (AREA)
- Resistance Heating (AREA)
Abstract
Cotton thread grid-net type electrothermal carbon fibre membrane of the present invention and its manufacturing method,It is woven into square grid shape using cotton thread,Heat conduction carbon composite cotton thread is immersed in by immersion way to be woven into the cotton thread of grid,Form electrothermal carbon fibre membrane,Improve the flexibility and tolerance of conductive heating unit,It is coated with using hot melting plastic extruding injection molding manner and is encapsulated on plastics counterdie,It ensure that its internal encapsulated vacuum degree,The internal break and because expand with heat and contract with cold short circuit phenomenon caused by producing bubbles inside that electrothermal carbon fibre membrane easily occurs in long-time is applied are prevented,Extend service life,Enhance safe class and heat transfer efficiency,And the product that maximum width is 150cm can be produced,Increase the scope of application,Reduce construction cost,Electrothermal carbon fibre membrane in use releases a large amount of far infrareds,Human body cell can be directly entered,Reach 2000 times per minute or more bounces,Spontaneous generation thermal energy,As the energy saving environmental protection product of new generation of people's indoor heating.
Description
Technical field
The present invention relates to a kind of electric heating materials, more particularly to a kind of cotton thread grid-net type electrothermal carbon fibre membrane and its manufacture
Method.
Background technology
Currently on the market more is one kind by materials such as polyester film, conductive silver paste, conductive carbon paste, metal current-carrying items
Manufactured Electric radiant Heating Film, and the conductive carbon paste of conductive silver paste is printed on mylar by way of ink printing, both ends add
It is upper to be used for connecting the metal current-carrying item of power supply, and polymer PET is coated with above, two layers of polymer PET is complex as by heat pressing process
Integrally formed Electric radiant Heating Film.
For the Electric radiant Heating Film that such mode makes due to the limitation of technology, 60cm can only be made in usual maximum width, and
In the application since after expanding with heat and contract with cold repeatedly, centre often will produce bubble, and form accelerated expansion, so as to cause interior
Portion's short circuit connects power supply additionally, due to by metal flow guide bar, and short-circuit trip phenomenon can be caused by being also easy to produce oxidation after a certain period of time,
Substantially reduce service life.
Invention content
In view of this, the main purpose of the present invention is to provide a kind of cotton thread grid-net type electrothermal carbon fibre membrane and its manufacturers
Cotton thread is woven into square grid shape by method by the technical program, and heat conduction carbon composite is immersed in cotton by immersion way
Line is woven into the cotton thread of grid, metal current-carrying item respectively with cotton thread weave grid both sides be connected, using PE or PET into
Row vacuum sealing, power supply are connected with the metal current-carrying item of both sides respectively, and power supply is connected by electrothermal carbon fibre membrane, can radiate big
Far infrared is measured, these far infrareds can be directly entered human body cell, allow the human body cell jump per minute for reaching 2000 times or more
It is dynamic, and spontaneous generation thermal energy, be effectively prevented the phenomenon that generating bubble of expanding with heat and contract with cold repeatedly, substantially increase service life and
Safety.
In order to achieve the above object, the technical proposal of the invention is realized in this way：
A kind of cotton thread grid-net type electrothermal carbon fibre membrane, including metal current-carrying item, connecting wire and plastics counterdie, the connection
Conducting wire front end is connected with corresponding metal current-carrying item respectively, further includes that cotton thread weaves grid and plastic hot melt layer, described
Contain heat conduction carbon composite in the cotton thread of cotton thread braiding grid, cotton thread braiding grid is placed on plastics counterdie, number
A metal current-carrying item is separately positioned on the grid lines of cotton thread braiding grid both sides, and the plastic hot melt layer heat-sealing is in plastic bottom
On film, and plastics counterdie, cotton thread braiding grid, metal current-carrying item, connecting wire front end and the sealing of plastic hot melt layer are coated
Connection is integral.
A kind of electrothermal carbon fibre membrane production method, which is characterized in that be made according to the following steps：
A. by cotton thread be divided into warp and weft report to the leadship after accomplishing a task line up cotton thread weave grid；
B. by following raw material composition, first time soak is prepared by weight：
It is completed after being stirred at room temperature uniformly for use；
C. by following raw material composition, second of soak is prepared with following steps by weight：
(1) mixture is made：
Liquid polyurethane；
Ethylene-vinyl acetate copolymer；
Alginic acid；
Aforesaid liquid raw material composition is more for use after mixing than carrying out by equivalent weight；
(2) mixed powder is made：
Powder shape ceramic powder；
Aluminium oxide；
Illite；
Germanium；
Anion mountain flour；
Raw material composition more than above-mentioned any two is more for use after mixing than carrying out by equivalent weight；
(3) second of soak is made：
By the 30-40 of manufactured mixed powder in the 60-70 of manufactured mixture in step (1) and step (2), at room temperature
It is mixed, the second soak is made after mixing；
D. the cotton thread braiding grid in step A is placed into first time soak and is impregnated, done after immersion
Dry processing；
E. the cotton thread braiding grid in step D is placed into second of soak and is impregnated for several times, impregnated laggard
Row is dried '
F. the cotton thread braiding grid made by step E is placed on plastics counterdie, the warp of grid is woven in cotton thread
Metal current-carrying item is configured at the outer rim of line both sides, and two connecting wire front ends are connected with corresponding metal current-carrying item respectively；
G. plastic hot melt layer is coated with by way of squeezing and being molded on plastics counterdie, and plastics counterdie, cotton thread is compiled
Grid, metal current-carrying item, connecting wire front end and the sealing cladding connection of plastic hot melt layer is knitted to be integral.
In the technical program, the intermixture be equivalent weight than plastics antioxidant, carbon dispersant and powder circle
Face activating agent.
It is using the advantageous effect after above-mentioned technical proposal：A kind of cotton thread grid-net type electrothermal carbon fibre membrane and its manufacturer
Method is woven into square grid shape by the technical program using cotton thread, is immersed in heat conduction carbon composite by immersion way
Cotton thread is woven into the cotton thread of grid, forms electrothermal carbon fibre membrane, conductive heating unit is substantially increased compared with mode of printing
Flexibility and tolerance, squeeze injection molding manner using hot melting plastic and be coated with and encapsulated on plastics counterdie, ensure that in it
The encapsulated vacuum degree in portion has prevented internal break and because expand with heat and contract with cold that electrothermal carbon fibre membrane easily occurs in long-time is applied
Short circuit phenomenon caused by producing bubbles inside, effectively extends whole service life, enhances safe class and heat transfer efficiency,
And the product that maximum width is 160cm can be produced, the scope of application is increased, construction cost, carbon fiber in use are reduced
Electric radiant Heating Film can release a large amount of far infrareds, these far infrareds can be directly entered human body cell, allow human body cell is per minute to reach
To 2000 times or more bounces, and spontaneous generation thermal energy, become the energy saving environmental protection product of new generation of people's indoor heating.
Description of the drawings
Fig. 1 is the overall structure schematic cross-sectional view of cotton thread grid-net type electrothermal carbon fibre membrane of the present invention.
In figure, 1 metal current-carrying item, 2 connecting wires, 3 plastics counterdies, 4 cotton threads braiding grid, 5 plastic hot melt layers, 6 warps
Line, 7 wefts.
Specific implementation mode
Specific embodiment in the present invention is described in further detail below in conjunction with attached drawing.
As shown in Figure 1, cotton thread grid-net type electrothermal carbon fibre membrane of the present invention, including metal current-carrying item 1, connecting wire
2 and plastics counterdie 3, the connecting wire 2 be connected respectively with corresponding metal current-carrying item 1, further include cotton thread braiding grid
Net 4 and plastic hot melt layer 5 contain heat conduction carbon composite in the cotton thread of cotton thread braiding grid 4, and cotton thread weaves grid
Net 4 is placed on plastics counterdie 3, and several metal current-carrying items 1 are separately positioned on the grid lines of 4 both sides of cotton thread braiding grid,
The plastic hot melt layer 5 seals on plastics counterdie 3, and plastics counterdie 3, cotton thread are woven grid 4, metal current-carrying item 1, connected
It connects 2 front end of conducting wire and the sealing cladding connection of plastic hot melt layer 5 is integral.
A kind of cotton thread grid-net type electrothermal carbon fibre membrane production method, which is characterized in that be made according to the following steps：
A. cotton thread is divided into warp 6 and weft 7 reports to the leadship after accomplishing a task and lines up cotton thread braiding grid 4；
B. by following raw material composition, first time soak is prepared by weight：
It is completed after being stirred at room temperature uniformly for use；
C. by following raw material composition, second of soak is prepared with following steps by weight：
(1) mixture is made：
Liquid polyurethane；
Ethylene-vinyl acetate copolymer；
Alginic acid；
Aforesaid liquid raw material composition is more for use after mixing than carrying out by equivalent weight；
(2) mixed powder is made：
Powder shape ceramic powder；
Aluminium oxide；
Illite；
Germanium；
Anion mountain flour；
Raw material composition more than above-mentioned any two is more for use after mixing than carrying out by equivalent weight；
(3) second of soak is made：
By the 30-40 of manufactured mixed powder in the 60-70 of manufactured mixture in step (1) and step (2), at room temperature
It is mixed, the second soak is made after mixing；
D. the cotton thread braiding grid 4 in step A is placed into first time soak and is impregnated, done after immersion
Dry processing；
E. the cotton thread braiding grid 4 in step D is placed into second of soak and is impregnated for several times, impregnated laggard
Row is dried；
F. the cotton thread braiding grid 4 made by step E is placed on plastics counterdie 3, grid 4 is woven in cotton thread
Metal current-carrying item 1 is configured at 6 both sides outer rim of warp, by two 2 front ends of connecting wire respectively with corresponding 1 phase of metal current-carrying item
Connection；
G. plastic hot melt layer 5 is coated with by way of squeezing and being molded on plastics counterdie 3, and by plastics counterdie 3, cotton thread
Braiding grid 4, metal current-carrying item 1,2 front end of connecting wire and the sealing cladding connection of plastic hot melt layer 5 are integral.
In the technical program, the intermixture be equivalent weight than plastics antioxidant, carbon dispersant and powder circle
Face activating agent, plastics antioxidant, carbon dispersant and powder interfacial agent employed in the embodiment of the present invention are
Sale product of the same name in the market.
In the embodiment of the present invention, the outer surface of the plastic hot melt layer 5 can be set as needed the flatness on surface,
When the appearance surface evenness of plastic hot melt layer 5 is relatively low, manufacturing cost can be not only effectively reduced, and as ground
When hot product, it can be laid immediately on ground and be not easy to jump, keep product more environmentally-friendly in construction and application.
The above, only preferable possible embodiments of the invention, are not limited to protection scope of the present invention.
Claims (3)
1. a kind of cotton thread grid-net type electrothermal carbon fibre membrane, including metal current-carrying item, connecting wire and plastics counterdie, the connection is led
The front end of line is connected with corresponding metal current-carrying item respectively, which is characterized in that weaves grid and plastics heat including cotton thread
Crucible zone contains heat conduction carbon composite in the cotton thread of cotton thread braiding grid, and cotton thread braiding grid is placed on plastics
On counterdie, several metal current-carrying items are separately positioned on the grid lines of cotton thread braiding grid both sides, the plastic hot melt layer heat
It is enclosed on plastics counterdie, and plastics counterdie, cotton thread is woven into grid, metal current-carrying item, connecting wire front end and plastic hot melt
Layer sealing cladding connection is integral.
2. a kind of cotton thread grid-net type electrothermal carbon fibre membrane production method, which is characterized in that be made according to the following steps：
A. by cotton thread be divided into warp and weft report to the leadship after accomplishing a task line up cotton thread weave grid；
B. by following raw material composition, first time soak is prepared by weight：
It is completed after being stirred at room temperature uniformly for use；
C. by following raw material composition, second of soak is prepared with following steps by weight：
(1) mixture is made：
Liquid polyurethane；
Ethylene-vinyl acetate copolymer；
Alginic acid；
Aforesaid liquid raw material composition is more for use after mixing than carrying out by equivalent weight；
(2) mixed powder is made：
Powder shape ceramic powder；
Aluminium oxide；
Illite；
Germanium；
Anion mountain flour；
Raw material composition more than above-mentioned any two is more for use after mixing than carrying out by equivalent weight；
(3) second of soak is made：
By the 30-40 of manufactured mixed powder in the 60-70 of manufactured mixture in step (1) and step (2), carry out at room temperature
Mixing, is made the second soak after mixing；
D. the cotton thread braiding grid in step A is placed into first time soak and is impregnated, place is dried after immersion
Reason；
E. the cotton thread braiding grid in step D is placed into second of soak and is impregnated for several times, done after immersion
Dry processing；
F. the cotton thread braiding grid made by step E is placed on plastics counterdie, the warp two of grid is woven in cotton thread
Metal current-carrying item is configured at the outer rim of side, and the front end of two connecting wires is connected with corresponding metal current-carrying item respectively；
G. plastic hot melt layer is coated with by way of squeezing and being molded on plastics counterdie, and by plastics counterdie, cotton thread weaving square
Grid, metal current-carrying item, connecting wire front end and the sealing cladding connection of plastic hot melt layer are integral.
3. cotton thread grid-net type electrothermal carbon fibre membrane production method according to claim 2, which is characterized in that the intermixture
For equivalent weight than plastics antioxidant, carbon dispersant and powder interfacial agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710144059.1A CN108574999A (en) | 2017-03-13 | 2017-03-13 | Cotton thread grid-net type electrothermal carbon fibre membrane and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710144059.1A CN108574999A (en) | 2017-03-13 | 2017-03-13 | Cotton thread grid-net type electrothermal carbon fibre membrane and its manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108574999A true CN108574999A (en) | 2018-09-25 |
Family
ID=63578115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710144059.1A Pending CN108574999A (en) | 2017-03-13 | 2017-03-13 | Cotton thread grid-net type electrothermal carbon fibre membrane and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108574999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112055430A (en) * | 2019-06-06 | 2020-12-08 | 上海邗韵电子科技有限公司 | Graphene cotton net heating element for bed and manufacturing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1869320A (en) * | 2005-05-26 | 2006-11-29 | 裴钟浩 | Carbon-plated heating face fabric and method for manufacturing same |
| CN200953663Y (en) * | 2006-09-30 | 2007-09-26 | 金庆华 | Pure-cotton carbon fiber electric heating cloth |
| CN201063873Y (en) * | 2007-04-28 | 2008-05-21 | 侯毅 | Electrothermal semiconductor film heating element |
| CN206851057U (en) * | 2017-03-13 | 2018-01-05 | 陈双云 | Cotton thread grid-net type electrothermal carbon fibre membrane |
-
2017
- 2017-03-13 CN CN201710144059.1A patent/CN108574999A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1869320A (en) * | 2005-05-26 | 2006-11-29 | 裴钟浩 | Carbon-plated heating face fabric and method for manufacturing same |
| CN200953663Y (en) * | 2006-09-30 | 2007-09-26 | 金庆华 | Pure-cotton carbon fiber electric heating cloth |
| CN201063873Y (en) * | 2007-04-28 | 2008-05-21 | 侯毅 | Electrothermal semiconductor film heating element |
| CN206851057U (en) * | 2017-03-13 | 2018-01-05 | 陈双云 | Cotton thread grid-net type electrothermal carbon fibre membrane |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112055430A (en) * | 2019-06-06 | 2020-12-08 | 上海邗韵电子科技有限公司 | Graphene cotton net heating element for bed and manufacturing method thereof |
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