CN100455146C - Carbon material electrical heating membrane and preparing method - Google Patents
Carbon material electrical heating membrane and preparing method Download PDFInfo
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- CN100455146C CN100455146C CNB2005102005439A CN200510200543A CN100455146C CN 100455146 C CN100455146 C CN 100455146C CN B2005102005439 A CNB2005102005439 A CN B2005102005439A CN 200510200543 A CN200510200543 A CN 200510200543A CN 100455146 C CN100455146 C CN 100455146C
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Abstract
The present invention discloses a carbon material electrical heating film and a preparing method. Soft electric heating film material is made by adding proper stabilizing agent, agglomerant and disperser by utilizing excellent electric thermal property of materials of natrium-microstage lead carbon powder and conductive carbon black powder body. Compared with the prior art, the product of the present invention has high electric thermal conversion ratio and quite obvious electrically energy saving effect. Electric thermal films of a low temperature type, a middle temperature type and a high temperature type can be produced, and the highest use temperature can reach 350 DGC. The service voltage is between 3.6 V to 650 V, and the application area of the present invention is considerably widened. Furthermore, the present invention has simple manufacturing process, and the present invention has easy industrialization.
Description
Technical field:
The present invention relates to a kind of carbon material electrical heating membrane and preparation method, belong to the electrical heating element technical field.
Background technology:
Begin just to have had electric heating material from the invention of electricity, present widely used electric heating material mainly contains metallic resistance thermo electric material (metallic resistance silk etc.), non-metallic resistor thermo electric material (graphite rod, Graphite cloth etc.).Always towards making the target development that simple, energy-conservation, withstand voltage scope is big, prolong useful life, particularly energy-conservation be the parameter that present people pay close attention to the most to electric heating material.In recent years, people have developed electric heating film, because this electric heating material generally all has higher electric conversion rate, useful life is than metallic resistance electric heating material height, the preparation method is fairly simple, and many Electric radiant Heating Film have characteristics such as flexibility, and electric heating film has become a developing direction in the electric heating material.Situation from present existing electric heating film, mainly contain two classes: a class is a dura mater, be that film does not have flexibility, become sheet or tabular, as being distributed in the electric heating film made in the thermosetting resin with carbon fiber, metal is pressed into metal electric heating film that thin strip press seal makes etc. in insulating material (as mica etc.); Another kind of is soft film, and promptly film has good flexibility, as electric heating material is made slurry, by methods such as view printings electric heating material is embedded electric heating film of making in the insulating material etc.For the dura mater electric heating material, have the characteristics of serviceability temperature higher (maximum operation (service) temperature can reach about 900 ℃), but its electric conversion rate relatively low (generally being not more than 80%) is not soft, can not use under many situations; The flexibility electric heating film generally all has higher electric conversion rate (can greater than 80%), thus paid attention to very much, but the general maximum operation (service) temperature of present this electric heating film is all below 100 ℃.So electric heating film can't use in electric heating material on a large scale.
Summary of the invention:
The objective of the invention is to: a kind of carbon material electrical heating membrane and preparation method are provided, a microstage graphite carbon dust is received in utilization, carbon element powder body materials such as conductive black outstanding, hot property, absorb the experience and lessons of forefathers to the Electric radiant Heating Film preparation, make a kind of flexibility electric heating film, it is simple that this Electric radiant Heating Film has manufacture method, be easy to industrialization, characteristics such as electric conversion rate height, not only kept original flexibility Electric radiant Heating Film electric heating conversion ratio height, the quality softness, long service life, thermal inertia is little, the advantage that programming rate is fast, and overcome its serviceability temperature and be no more than 100 ℃ weakness, and its working voltage scope is widened greatly.
The present invention constitutes like this: calculate according to part by weight, with receive-microstage graphite carbon dust 30%～70%, conductive black 30%～70% and stabilizer 0～20% form the electricity powder that generates heat; Electricity consumption heating powder 20%～60%, binding agent 40%～80% are carrier with the glass fabric, and the adding carbon black disperser is prepared from.
The nanoscale graphite of 2-50nm is 0-2% in used-Na microstage graphite carbon dust, and all the other are the graphite powder body material of 1-15 μ m.
Described stabilizer is alundum (Al, silicon dioxide or titanium dioxide.Stabilizer can add in low temperature, low-pressure membrane on a small quantity, also can not add.Add the stabilizer that is no more than composition total amount 20% when using in temperature more than 160 ℃ or under the above voltage of 220V, addition is determined according to the quantity of the electricity heating powder of serviceability temperature, working voltage and the adding of film.Stabilizer can add separately, also can mix adding.
Described binding agent is newborn attitude neoprene, high temperature silicon rubber, High temp. epoxy resins or high temperature phenolic resins.Make the low form electric heating film with newborn attitude neoprene as binding agent, 80 ℃ of maximum operation (service) temperatures; Make middle warm type electric heating film, 200 ℃ of maximum operation (service) temperatures with high temperature silicon rubber, High temp. epoxy resins as binding agent; Higher warm type electric heating film in making as binding agent with high temperature phenolic resins, 350 ℃ of maximum operation (service) temperatures.
Described carbon black disperser is the carbon black dispersant special, and as DP-983,928, consumption and method are abideed by this products instruction.
To the selection of carrier glass fabric, select and the high glass fabric (also available other high temperature resistant soft cloth) of selected binding agent adhesion strength according to the binding agent that adopts and the binding agent characteristics of glass fabric.
The preparation method of carbon material electrical heating membrane of the present invention: earlier binding agent is diluted with special diluting agent, the addition of diluent is determined according to the addition of electricity heating powder, add carbon black disperser simultaneously, after being uniformly dispersed, adding conductive black earlier disperseed 0.5～1 hour, adding graphite carbon dust and stabilizer again disperseed 0.5～1 hour, slurry after the dispersion is put into three roll machine, carry out roll-in or grinding in Raymond mill or the sand mill, with three roll machine continuous rolling 3～4 times, Raymond mill or sand mill ground 0.5～2 hour, putting into dispersion machine again after roll-in or the grinding disperseed 0.5～1 hour, in each dispersion, in roll-in or the grinding, specification requirement according to coating machine adds diluent adjusting slurry viscosity, makes the coating slurry; Be uniformly coated on glass fabric on and oven dry with coating machine the slurry that makes, its technological parameter is determined according to different binding agents and coating machine characteristics, it is benefit that the thickness of each coating does not ftracture to film, coating thickness is determined according to the required heating temp of electric heating film, can once be coated with or repeatedly coating, till specific thickness; Coated electric heating film is put into its maximum operation (service) temperature and is added 20 ℃ of down 3 hours stabilization processes of insulation, is cut into required form at last, size gets final product.
Compared with prior art, the present invention has following advantage:
1. electric heating film electric conversion rate of the present invention is higher than 99%, so power savings is very obvious.
2. the present invention can be according to the different requirements of user, produce low form, middle warm type, in the electric heating film of higher warm type, maximum operation (service) temperature reaches 350 ℃.
3. the present invention can produce the electric heating film that uses the different voltages of 3.6V～650V by adjusting material prescription, has widened its range of application greatly.
4. the preparation technology of electric heating film of the present invention is simple, is easy to industrialization.
Product of the present invention is used to make thermoelectric heating device, and is more energy-conservation more than 50% than common metal resistance wire electric heater; With the electric blanket of its making, than the electric blanket of resistance wire formula energy-conservation about 50%; This product is used for housing heating heating equipment, pipeline firing equipment, cryogenic thermostat equipment, and energy-saving effect is also very obvious.
Embodiment:
Embodiments of the invention 1: newborn attitude neoprene 100 grams are diluted with the special diluting agent that businessman provides, the addition of diluent is 300 grams, be used to regulate the viscosity of slurry, add 3 gram carbon black disperser DP-983 simultaneously, after being uniformly dispersed, adding 40 gram conductive blacks earlier disperseed 0.8 hour, adding 61 gram graphite carbon dusts again disperseed 0.8 hour, slurry after the dispersion is put into Raymond mill and was ground 1 hour, putting into dispersion machine after the grinding again disperseed 0.8 hour, according to the coating machine characteristics, in each dispersion, the diluent that adds 100 grams in the grinding is regulated slurry viscosity, makes the coating slurry; Be uniformly coated on glass fabric on and oven dry with coating machine the slurry that makes, its technological parameter is to be incubated 25 minutes under 60 ℃, and it is benefit that the thickness of each coating does not ftracture to film, and carries out 4 coatings, and coating layer thickness reaches till 20; Coated electric heating film is put into 100 ℃ of down 3 hours stabilization processes of insulation, at last by customer requirements be cut into required form, size gets final product.
Embodiments of the invention 2: High temp. epoxy resins 100 grams are diluted with epoxy resin diluent, the addition of diluent is 400 grams, be used to regulate the viscosity of slurry, add 3 gram carbon black disperser DP-983 simultaneously, after being uniformly dispersed, add 60 gram conductive blacks earlier and disperseed 0.5 hour, add 36 gram graphite carbon dusts and 10 gram stabilizer Al again
2O
3Disperseed 0.5 hour, the slurry after the dispersion is put into sand mill and was ground 2 hours, puts into dispersion machine after the grinding again and disperses 0.5 hour, according to the coating machine characteristics, adds 50 gram diluents and regulate slurry viscosity in each dispersion, grinding, makes to be coated with and uses slurry; Be uniformly coated on glass fabric on and oven dry with coating machine the slurry that makes, its technological parameter is 120 ℃ of insulations 15 minutes, and 160 ℃ are incubated 15 minutes, 200 ℃ are incubated 15 minutes, it is benefit that the thickness of each coating does not ftracture to film, and carries out 4 coatings, and coating layer thickness reaches till 20; Coated electric heating film is put into 220-250 ℃ of down 3 hours stabilization processes of insulation, at last by customer requirements be cut into required form, size gets final product.
Embodiments of the invention 3: high temperature phenolic resins 100 grams are diluted with high temperature phenolic resins diluent, the addition of diluent is 200 grams, be used to regulate the viscosity of slurry, add 3 gram carbon black disperser DP-983 simultaneously, after being uniformly dispersed, add 30 gram conductive blacks earlier and disperseed 1 hour, add 40 gram graphite carbon dusts and 20 gram stabilizer SiO again
2Disperseed 1 hour, the slurry after the dispersion is put into the three roll machine continuous rolling 4 times, puts into dispersion machine after the roll-in again and disperses 1 hour, according to the coating machine characteristics, adds diluent 150 grams and regulate slurry viscosity in each dispersion, roll-in, makes the coating slurry; Be uniformly coated on glass fabric on and oven dry with coating machine the slurry that makes, its technological parameter is 180 ℃ of insulations 25 minutes, and it is benefit that the thickness of each coating does not ftracture to film, and carries out 2 coatings, and coating thickness reaches till 15; Coated electric heating film is put into 370 ℃ of down 3 hours stabilization processes of insulation, at last by customer requirements be cut into required form, size gets final product.
Claims (7)
1. carbon material electrical heating membrane is characterized in that: calculate according to part by weight, with receive-microstage graphite carbon dust 30%～70%, conductive black 30%～70% and stabilizer 0～20% form the electricity powder that generates heat; Electricity consumption heating powder 20%～60%, binding agent 40%～80% are carrier with the glass fabric, and the adding carbon black disperser is prepared from.
2. according to the described carbon material electrical heating membrane of claim 1, it is characterized in that: the nanoscale graphite of 2-50nm is 0-2% in used receiving-microstage graphite carbon dust, and all the other are the graphite powder body material of 1-15 μ m.
3. according to the described carbon material electrical heating membrane of claim 1, it is characterized in that: described stabilizer is alundum (Al, silicon dioxide or titanium dioxide.
4. according to the described carbon material electrical heating membrane of claim 1, it is characterized in that: described binding agent is that newborn attitude neoprene, maximum operation (service) temperature are the phenolic resins that 200 ℃ silicon rubber, epoxy resin that maximum operation (service) temperature is 200 ℃ or maximum operation (service) temperature are 350 ℃.
5. according to claim 1 or 4 described carbon material electrical heating membranes, it is characterized in that: making maximum operation (service) temperature with newborn attitude neoprene as binding agent is 80 ℃ low form electric heating film; To be 200 ℃ silicon rubber, epoxy resin that maximum operation (service) temperature is 200 ℃ make maximum operation (service) temperature as binding agent with maximum operation (service) temperature is 200 ℃ middle warm type electric heating film; With maximum operation (service) temperature be 350 ℃ phenolic resins as binding agent make maximum operation (service) temperature be 350 ℃ in higher warm type electric heating film.
6. according to the described carbon material electrical heating membrane of claim 1, it is characterized in that: described carbon black disperser is the carbon black dispersant special.
7. the preparation method of carbon material electrical heating membrane as claimed in claim 1, it is characterized in that: earlier binding agent is diluted with special diluting agent, the addition of diluent is determined according to the addition of electricity heating powder, add carbon black disperser simultaneously, after being uniformly dispersed, adding conductive black earlier disperseed 0.5～1 hour, adding graphite carbon dust and stabilizer again disperseed 0.5～1 hour, slurry after the dispersion is put into three roll machine, carry out roll-in or grinding in Raymond mill or the sand mill, with three roll machine continuous rolling 3～4 times, Raymond mill or sand mill ground 0.5～2 hour, put into dispersion machine again after roll-in or the grinding and disperseed 0.5～1 hour; In each dispersion, roll-in or grinding, regulate slurry viscosity according to the specification requirement adding diluent of coating machine, make the coating slurry; Be uniformly coated on glass fabric on and oven dry with coating machine the slurry that makes, coating thickness is determined according to the required heating temp of electric heating film, can once be coated with or repeatedly coating, till specific thickness; Coated electric heating film is put into its maximum operation (service) temperature and is added 20 ℃ of down 3 hours stabilization processes of insulation, is cut into required form at last, size gets final product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005102005439A CN100455146C (en) | 2005-09-20 | 2005-09-20 | Carbon material electrical heating membrane and preparing method |
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| CNB2005102005439A CN100455146C (en) | 2005-09-20 | 2005-09-20 | Carbon material electrical heating membrane and preparing method |
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| CN1770930A CN1770930A (en) | 2006-05-10 |
| CN100455146C true CN100455146C (en) | 2009-01-21 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101873729B (en) * | 2010-06-07 | 2012-01-04 | 刘忠耀 | Electric heating film and preparation method thereof |
| CN102424201B (en) * | 2011-08-10 | 2013-08-28 | 张岷 | Fast food heating device container, heater and heating agent |
| MX360762B (en) | 2012-05-21 | 2018-11-15 | Imerys Graphite & Carbon Switzerland Ltd | Surface-modified carbon hybrid particles, methods of making, and applications of the same. |
| CN104780630B (en) * | 2015-04-16 | 2017-01-04 | 成都扬中新能源科技有限公司 | A kind of Electric radiant Heating Film, electric hot plate and corresponding manufacture method |
| CN105636251B (en) * | 2016-02-02 | 2019-11-12 | 桐乡市桑美纺织有限公司 | A kind of carbon ground cushion and its production technology |
| CN108124322A (en) * | 2017-11-21 | 2018-06-05 | 浙江沃豪木业科技有限公司 | A kind of preparation method for the euthermic chip that nanometer carbon fiber is merged with lumber fibre |
| CN108777887A (en) * | 2018-06-27 | 2018-11-09 | 四川省安德盖姆石墨烯科技有限公司 | A kind of graphene heating film and preparation method thereof |
| CN109121233A (en) * | 2018-09-17 | 2019-01-01 | 贵州火焰山电器股份有限公司 | A kind of nano carbon material electric heating diaphragm and installation method |
| CN112011268A (en) * | 2019-05-30 | 2020-12-01 | 贵州火焰山电器股份有限公司 | Far infrared nano carbon material electric heating coating |
| CN114258167A (en) * | 2020-09-23 | 2022-03-29 | 天津工业大学 | Preparation method of carbon nanotube/glass fiber cloth flexible film heater |
| TWI815112B (en) * | 2021-05-07 | 2023-09-11 | 財團法人紡織產業綜合研究所 | Conductive coating and manufacturing method of the same |
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| CN1032783C (en) * | 1991-12-29 | 1996-09-11 | 中国科学院新疆化学研究所 | Electric heating film |
| JPH10199663A (en) * | 1997-01-08 | 1998-07-31 | Sigma Gijutsu Kenkyusho:Kk | Heat generating composition |
| JPH11339933A (en) * | 1998-05-25 | 1999-12-10 | E Tec:Kk | Expansion graphite flat heating element and its manufacture |
| CN1520232A (en) * | 2003-01-23 | 2004-08-11 | 贵州航天天科机电制造有限责任公司 | Nonmetallic electrothermal film made from nano composite material |
| CN1549654A (en) * | 2003-05-19 | 2004-11-24 | 键 刘 | Nano-composite material electric heating film |
| CN1180660C (en) * | 2002-09-27 | 2004-12-15 | 孟国军 | Nano graphite carbon composite electropyrexia material |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032783C (en) * | 1991-12-29 | 1996-09-11 | 中国科学院新疆化学研究所 | Electric heating film |
| JPH10199663A (en) * | 1997-01-08 | 1998-07-31 | Sigma Gijutsu Kenkyusho:Kk | Heat generating composition |
| JPH11339933A (en) * | 1998-05-25 | 1999-12-10 | E Tec:Kk | Expansion graphite flat heating element and its manufacture |
| CN1180660C (en) * | 2002-09-27 | 2004-12-15 | 孟国军 | Nano graphite carbon composite electropyrexia material |
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Owner name: SHANGHAI KAIBO ASTRONAUTICS NANOTECHNOLOGY CO., LT |
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Effective date of registration: 20110517 Address after: Six, 563000 floor, Jiangnan trading company building, 36 Beijing Road, Guizhou, Zunyi Co-patentee after: Shanghai Kai space Nano Technology Co., Ltd. Patentee after: Jiangnan Industry Trade Company Of China Jiangnan Aerospace Industry Group Address before: Six, 563000 floor, Jiangnan trading company building, 36 Beijing Road, Guizhou, Zunyi Patentee before: Jiangnan Industry Trade Company Of China Jiangnan Aerospace Industry Group |
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