CN105120536A - Preparation method of nano material heating element - Google Patents
Preparation method of nano material heating element Download PDFInfo
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- CN105120536A CN105120536A CN201510635048.4A CN201510635048A CN105120536A CN 105120536 A CN105120536 A CN 105120536A CN 201510635048 A CN201510635048 A CN 201510635048A CN 105120536 A CN105120536 A CN 105120536A
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Abstract
The invention discloses a preparation method of a nano material heating element. The preparation method comprises the steps of (1) adding deionized water into polyvinyl alcohol, and obtaining a dissolved solution of which the polyvinyl alcohol is dissolved in the deionized water; (2) adding conductive filler and an auxiliary into the dissolved solution, and obtaining mixed liquor; (3) coating a film formation carrier with the mixed liquor to form a conductive filler layer, and a heating element consisting of the conductive filler layer and the film formation carrier is obtained after drying. The preparation method of the nano material heating element provided by the invention realizes the effect that the heating element with the excellent performance of heat conduction and electric conduction is obtained.
Description
Technical field
The present invention relates to thermo electric material, relate in particular to a kind of preparation method of nano material heater.
Background technology
At present, warm, the electric heating of existing electricity mainly contains heating cable and Electric radiant Heating Film two type.Wherein, heating cable adopts single or many heating alloies as pyrotoxin, and high-purity, high temperature, electric smelting crystal magnesium oxide make thermal conductive insulator, and seamless continuous stainless steel or copper pipe, as sheath, adopt special producing manufacture technics to form.Electric radiant Heating Film is the translucent polyester film that can generate heat after a kind of energising, is made up through processing, hot pressing of conductive special ink, metal current-carrying bar between insulation polyester film.Electric radiant Heating Film is divided into for the high-temperature electric heating membrane of electronic apparatus, military affairs etc. with for civilian low temperature electric heating film.
But, heating cable needs to add many heating alloies, and the coated thermal conductive insulator of outer needs, its high expensive, and increase own wt, cannot use in some special occasions, as home decoration (carpet, cushion, mural painting, screen etc.), wearable device (electrically-heated suit, gloves etc.).Moreover heating cable heats up comparatively slow, if there is local cable fracture, there is danger of hazardous electrical discharges, and directly will affect heating efficiency.Though low temperature electric heating film can solve some weak point of above-mentioned heating cable, but the conductive filler that Electric radiant Heating Film adopts usually is graphite powder, metal powder (silver powder, aluminium powder etc.), conductive black, these conductive fillers addition in Electric radiant Heating Film is all very large, for metal powder filler, particularly silver powder, cost is higher, graphite powder and carbon black have unsteadiness, long-time use is easily aging, and electric arc changes, and causes final heating efficiency significantly to reduce.Moreover traditional electrical hotting mask generally adopts oleoresin system, when Electric radiant Heating Film works, always there will be a small amount of VOC and discharge, environment and human body are impacted.
In order to solve the problems of the technologies described above, in prior art, propose following technology:
China Patent No. " 201410457400.5 " disclosed " a kind of Graphene Electric radiant Heating Film " on December 17th, 2014, and its technical scheme is that described Graphene Electric radiant Heating Film comprises graphene film heating layer and is coated in the insulating protective layer of the upper and lower both sides of graphene film heating layer; It is characterized in that, the preparation of graphene film heating layer comprises the following steps: (1), by the Graphene of 1 weight portion, the solvent of 5 ~ 150 weight portions, obtains graphene dispersing solution after ultrasonic disperse; (2) by graphene dispersing solution that step (1) obtains, extrude in the preparation facilities of in-line die orifice with the extruded velocity of 10 ~ 1000mL/h, in the solidification liquid of 10 ~ 80 DEG C, stop 1 ~ 100 second freezing film, after drying, obtain graphene film heating layer; The solvent of described step (1) is primarily of water, N-methyl pyrrolidone, acetone, methyl-sulfoxide, pyridine, dioxane, N, one or more in N-dimethyl formamide, N, N-dimethylacetylamide, oxolane, butanone, ethylene glycol, diethylene glycol (DEG) are according to any proportioning mixing composition; The preparation facilities of the in-line die orifice in described step (2) is rectangular structure, and centre has an in-line die orifice narrowed gradually; The solidification liquid of described step (2) forms according to any proportioning mixing primarily of one or more in methyl alcohol, ethanol, ethyl acetate, n-butanol, ethylene glycol, cyclohexanone, glycerol, butyl acetate, propylene glycol, n-propyl acetate, acetic acid, glycerol, isobutanol, methyl acetate.But this patent is in actual application, still there is following defect: one, utilize graphene oxide (rGO) to prepare Electric radiant Heating Film, relate to graphene oxide reduction process, this reduction process is more loaded down with trivial details, and there is comparatively polyfunctional group in redox Graphene (rGO) surface being reduced gained, in reduction process, can not all remove, and surface hole defect is more, have impact on the heat conduction of Graphene, electric conductivity.Two, the solvent related in preparation process or coagulating agent comprise methyl alcohol and oxolane, and these are noxious substance, more dangerous in operation, easily damage human body.Three, adopt polyimides as insulating protective layer, price costly, substantially increases production cost.Four, the Electric radiant Heating Film prepared is thicker, causes cost higher.
Summary of the invention
The object of the invention is to solve the above-mentioned problems in the prior art, provide a kind of preparation method of nano material heater, the technical problem that the present invention solves to obtain the heater with excellent heat conducting electric conductivity.
For achieving the above object, the technical solution used in the present invention is as follows:
A preparation method for nano material heater, is characterized in that comprising the following steps:
(1), in polyvinyl alcohol add deionized water, obtain polyvinyl alcohol dissolution to the lysate in deionized water;
(2), in lysate add conductive filler and auxiliary agent, obtain mixed liquor;
(3), by mixed liquor be coated on film-forming carrier and form conductive filler layer, after drying, obtain the heater be made up of conductive filler layer and film-forming carrier.
In described step (1), the mass ratio of polyvinyl alcohol and deionized water is 7-10:93-90.
In described step (1) polyvinyl alcohol at the temperature of 90-95 degree with the mode uniform dissolution stirred in deionized water.
Conductive filler in described step (2) is one or both the mixing in Graphene, carbon black.
When described conductive filler is Graphene, the mass ratio of Graphene and polyvinyl alcohol is 1-10:99-90, when described conductive filler is carbon black, the mass ratio of carbon black and polyvinyl alcohol is 10-30:90-70, when described conductive filler is Graphene with the mixing of carbon black, Graphene is 1-16:1-4:98-80 than carbon black than the mass ratio of polyvinyl alcohol.
Described Graphene needs its dispersion treatment before use, and dispersing mode is ultrasonic disperse 30-60min in absolute ethyl alcohol.
Auxiliary agent in described step (2) is the surfactant comprising one or more combinations in absolute ethyl alcohol, ethylene glycol, Tween-80, lauryl sodium sulfate, neopelex, L-lysine, sodium lignin sulfonate, acetone, n-butanol.
Film-forming carrier in described step (3) is the diaphragm be made up of PET material, and its thickness is 0.1-0.2mm.
Mixed liquor in described step (3) is coated on film-forming carrier in the mode of brushing or spray, and coating thickness is 60-100um.
Heater surface in described step (3) is laid with tough film.
Employing the invention has the advantages that:
One, the present invention adopt polyvinyl alcohol and deionized water be nontoxic, paint having no volatile substances, adopt deionized water and carry out dissolve polyvinyl alcohol, both be conducive to accelerating dissolution velocity, can avoid completely again operationally occurring at the product produced the problem that VOC discharges, solve in prior art and easily occur the problem that VOC discharges, not only increase the fail safe of production, also make the product environmental protection more of producing.And; due to the resistance to water that polyvinyl alcohol has unique strong adherence, epithelium pliability, oil resistance, solvent resistance, protecting colloid, gas barrier performance, resistance to wear and has after special processing; therefore adopt polyvinyl alcohol as film forming matter; not only there is the advantage that film-formation result is good, also make the product after film forming can be widely used in the industries such as weaving, food, medicine, building, timber processing, papermaking, printing, agricultural, iron and steel, macromolecule chemical industry.Compared with the prior art being representative with China Patent No. " 201410457400.5 ", the present invention by dissolving, mixing and coating three key steps just can obtain the heater with excellent heat conducting electric conductivity, have production process simply, low production cost and the effective advantage of conductive and heat-conductive.
Two, in the present invention, if the mass ratio of polyvinyl alcohol and deionized water is less than the ratio of 7:93, the viscosity of mixed liquor can be caused too low because the quality of polyvinyl alcohol is less, finally cause the adhesive force of conductive filler layer after film-forming to reduce and graphene film hole more, and then conduction, the heat-conducting effect of reduction product; If the mass ratio of polyvinyl alcohol and deionized water is greater than the ratio of 10:90, the viscosity of mixed liquor can be caused too high because the quality of polyvinyl alcohol is more again, so increase course of dissolution time between and processing film forming time difficulty of construction.Therefore, the mass ratio of polyvinyl alcohol and deionized water is set to 7-10:93-90, has both been conducive to reducing difficulty of construction, can have improved the quality of products again.
Three, in the present invention, polyvinyl alcohol is by adding the mode uniform dissolution of thermal agitation in deionized water, and which is conducive to accelerating the dissolution velocity of polyvinyl alcohol and the adequacy of dissolving, and then reaches the object of enhancing productivity and improving the quality of products.
Four, in the present invention, because Graphene is thin, the hardest nano material in known world, it is almost completely transparent, only absorbs the light of 2.3%; Conductive coefficient is up to 5300W/mK, and higher than carbon nano-tube (CNT) and diamond, under normal temperature, its electron mobility is more than 15000cm2/Vs, again than CNT (carbon nano-tube) or silicon wafer height, and resistivity only about 1 Ω m, than copper or silver lower, be the material that world resistivity is minimum.Therefore, one or both mixing in employing Graphene, carbon black is as conductive filler layer, only need to add a small amount of Graphene, just can reach good conductive effect, very little to the structure influence of film-forming carrier, simultaneously, the interpolation of carbon black can also suppress Graphene to be reunited to a certain extent, and between the lamella space that can be filled in Graphene, improve conductive network, be conducive to improving the uniformity of conductive layer and the quality of product.With regard to the lamellar structure of Graphene, its lamella overlaps mutually, also makes the electric conductivity of heater have higher stability.
Five, in the present invention, when conductive filler is the mixture of Graphene, carbon black or Graphene and carbon black, adopt specific mass ratio, the dispersity that conductive filler reaches desirable in polyvinyl alcohol can be made, conductive filler layer can be made firmly to be attached on polyvinyl alcohol, and conductive filler can be made to form complete conductive and heat-conductive network.
Six, in the present invention, Graphene is as nano material, and have quite high surface energy, it is oleophylic not, also not hydrophilic, is very easily dissolved in generation agglomeration in a solvent; And adopt the mode process Graphene of ultrasonic disperse 30-60min in absolute ethyl alcohol, then can effectively solve the problem, and can avoid occurring that graphene sheet layer overlap joint bad and conduction, heat conduction network form incomplete defect, and then improve electric conductivity and the heating property of product.
Seven, in the present invention, auxiliary agent is surfactant, and its cardinal principle adopts larger molecular organics, is coated on Graphene skin, to reduce its surface energy, reduces Graphene to a certain extent and reunites in the solution.
Eight, in the present invention, the thickness of PET not only affects time and the efficiency of heat transfer, also affect the weight of product, therefore, PET material is made the diaphragm that thickness is 0.1-0.2mm, not only accelerate the heat transfer efficiency of product, decrease heat transfer time, also be applicable in wearable device because of its lighter in weight, and then expand the scope of application of product.
Nine, in the present invention, mixed liquor is coated on film-forming carrier in the mode of brushing or spray, and which can make mixed liquor be evenly distributed on film-forming carrier, is conducive to the heating property improving heater.Coating thickness is set to 60-100um, has both been conducive to reducing production cost, under conductive filler layer internal-external heat exchange not in time situation, can avoid the situation occurring puncturing coating under high power heating again.
Ten, in the present invention, lay tough film on heater surface, make heater have waterproof, protecting against shock, high temperature resistant, insulation, the more high characteristic of conductive coefficient.
11, the heater prepared by the present invention, be widely used in electric heating and field of electric heating because of its excellent performance, such as, can be widely used in: in the industry such as heating of house (warm, the home decoration of floor heating, wall, Administrative Area), outdoor heating (lawn, booth, automobile, tent, wearable device), chemical industry equipment (tank body deicing, insulation), aircraft (deicing, airfield runway deicing), means of transportation (railway, bridge are antifreeze).
Embodiment
Embodiment 1
A preparation method for nano material heater, comprises the following steps:
(1), in polyvinyl alcohol add deionized water in proportion, the mass ratio of polyvinyl alcohol and deionized water is 7:93, then at the temperature of 95 degree, makes polyvinyl alcohol uniform dissolution in deionized water in the mode stirred, obtains lysate; Wherein, deionized water joins after in polyvinyl alcohol, heat temperature raising while stirring.
(2), in lysate add conductive filler and auxiliary agent, conductive filler is Graphene and the mixing of carbon black, and Graphene is 7:3:90 than carbon black than the mass ratio of polyvinyl alcohol; Auxiliary agent is the surfactant comprising absolute ethyl alcohol and ethylene glycol combination; Graphene, carbon black and auxiliary agent join after in lysate in proportion, adopt stirring or other ad hoc fashion to make it mix, obtain the mixed liquor of stable performance; Graphene needs its dispersion treatment before use, and dispersing mode is ultrasonic disperse 60min in absolute ethyl alcohol.
(3), by mixed liquor to brush or the mode of spraying is coated on film-forming carrier and forms conductive filler layer, film-forming carrier is the diaphragm be made up of PET material, its thickness is 0.2mm, the thickness of conductive filler layer is 85um, after having applied, drying can obtain the exothermic material be made up of conductive filler layer and film-forming carrier.
In the present embodiment, in order to improve the toughness of exothermic material further, be fixedly laid with the tough film for the protection of exothermic material on the surface of exothermic material.
The experiment proved that, after the present embodiment adopts the preparation method of above-mentioned special parameter, the resistivity obtaining heater is only 2.2 Ω cm.
Embodiment 2
A preparation method for nano material heater, comprises the following steps:
(1), in polyvinyl alcohol add deionized water, the mass ratio of polyvinyl alcohol and deionized water is 10:90, then at the temperature of 93 degree, makes polyvinyl alcohol uniform dissolution in deionized water in the mode stirred, obtains lysate; Wherein, deionized water joins after in polyvinyl alcohol, heat temperature raising while stirring.
(2), in lysate add conductive filler and auxiliary agent, conductive filler is Graphene and the mixing of carbon black, and Graphene is 16:4:80 than carbon black than the mass ratio of polyvinyl alcohol; Auxiliary agent adopts absolute ethyl alcohol as surfactant; Graphene, carbon black and auxiliary agent join after in lysate in proportion, adopt stirring or other ad hoc fashion to make it mix, obtain the mixed liquor of stable performance; Graphene needs its dispersion treatment before use, and dispersing mode is ultrasonic disperse 30min in absolute ethyl alcohol.
(3), by mixed liquor to brush or the mode of spraying is coated on film-forming carrier and forms conductive filler layer, film-forming carrier is the diaphragm be made up of PET material, its thickness is 0.1mm, the thickness of conductive filler layer is 60um, after having applied, drying can obtain the exothermic material be made up of conductive filler layer and film-forming carrier.
The experiment proved that, after the present embodiment adopts the preparation method of above-mentioned special parameter, the resistivity obtaining heater is only 0.5 Ω cm.
Embodiment 3
A preparation method for nano material heater, comprises the following steps:
(1), in polyvinyl alcohol add deionized water, the mass ratio of polyvinyl alcohol and deionized water is 8:92, then at the temperature of 90 degree, makes polyvinyl alcohol uniform dissolution in deionized water in the mode stirred, obtains lysate; Wherein, deionized water joins after in polyvinyl alcohol, heat temperature raising while stirring.
(2), in lysate add conductive filler and auxiliary agent, conductive filler is Graphene and the mixing of carbon black, and Graphene is 1:1:98 than carbon black than the mass ratio of polyvinyl alcohol; Auxiliary agent is the surfactant comprising the combination of Tween-80, absolute ethyl alcohol and ethylene glycol; Graphene, carbon black and auxiliary agent join after in lysate in proportion, adopt stirring or other ad hoc fashion to make it mix, obtain the mixed liquor of stable performance; Graphene needs its dispersion treatment before use, and dispersing mode is ultrasonic disperse 45min in absolute ethyl alcohol.
(3), by mixed liquor to brush or the mode of spraying is coated on film-forming carrier and forms conductive filler layer, film-forming carrier is the diaphragm be made up of PET material, its thickness is 0.15mm, the thickness of conductive filler layer is 75um, after having applied, drying can obtain the exothermic material be made up of conductive filler layer and film-forming carrier.
The experiment proved that, after the present embodiment adopts the preparation method of above-mentioned special parameter, the resistivity obtaining heater is only 4.7 Ω cm.
Embodiment 4
A preparation method for nano material heater, comprises the following steps:
(1), in polyvinyl alcohol add deionized water, the mass ratio of polyvinyl alcohol and deionized water is 7:93, then at the temperature of 95 degree, makes polyvinyl alcohol uniform dissolution in deionized water in the mode stirred, obtains lysate; Wherein, deionized water joins after in polyvinyl alcohol, heat temperature raising while stirring.
(2), in lysate add conductive filler and auxiliary agent, conductive filler is Graphene, and the mass ratio of Graphene and polyvinyl alcohol is 1:99, and auxiliary agent is comprise the surfactant that Tween-80 and lauryl sodium sulfate combine; Graphene and auxiliary agent join after in lysate in proportion, adopt stirring or other ad hoc fashion to make it mix, obtain the mixed liquor of stable performance; Graphene needs its dispersion treatment before use, and dispersing mode is ultrasonic disperse 35min in absolute ethyl alcohol.
(3), by mixed liquor to brush or the mode of spraying is coated on film-forming carrier and forms conductive filler layer, film-forming carrier is the diaphragm be made up of PET material, its thickness is 0.2mm, the thickness of conductive filler layer is 65um, after having applied, drying can obtain the exothermic material be made up of conductive filler layer and film-forming carrier.
The experiment proved that, after the present embodiment adopts the preparation method of above-mentioned special parameter, the resistivity obtaining heater is only 5.4 Ω cm.
Embodiment 5
A preparation method for nano material heater, comprises the following steps:
(1), in polyvinyl alcohol add deionized water, the mass ratio of polyvinyl alcohol and deionized water is 9:91, then at the temperature of 91 degree, makes polyvinyl alcohol uniform dissolution in deionized water in the mode stirred, obtains lysate; Wherein, deionized water joins after in polyvinyl alcohol, heat temperature raising while stirring.
(2), in lysate add conductive filler and auxiliary agent, conductive filler is Graphene, and the mass ratio of Graphene and polyvinyl alcohol is 10:90, and auxiliary agent adopts lauryl sodium sulfate as surfactant; Graphene and auxiliary agent join after in lysate in proportion, adopt stirring or other ad hoc fashion to make it mix, obtain the mixed liquor of stable performance; Graphene needs its dispersion treatment before use, and dispersing mode is ultrasonic disperse 60min in absolute ethyl alcohol.
(3), by mixed liquor to brush or the mode of spraying is coated on film-forming carrier and forms conductive filler layer, film-forming carrier is the diaphragm be made up of PET material, its thickness is 0.17mm, the thickness of conductive filler layer is 76um, after having applied, drying can obtain the exothermic material be made up of conductive filler layer and film-forming carrier.
The experiment proved that, after the present embodiment adopts the preparation method of above-mentioned special parameter, the resistivity obtaining heater is only 1.7 Ω cm.
Embodiment 6
A preparation method for nano material heater, comprises the following steps:
(1), in polyvinyl alcohol add deionized water, the mass ratio of polyvinyl alcohol and deionized water is 8:92, then at the temperature of 93 degree, makes polyvinyl alcohol uniform dissolution in deionized water in the mode stirred, obtains lysate; Wherein, deionized water joins after in polyvinyl alcohol, heat temperature raising while stirring.
(2), in lysate add conductive filler and auxiliary agent, conductive filler is Graphene, and the mass ratio of Graphene and polyvinyl alcohol is 5:95, and auxiliary agent is comprise the surfactant that neopelex and lauryl sodium sulfate combine; Graphene and auxiliary agent join after in lysate in proportion, adopt stirring or other ad hoc fashion to make it mix, obtain the mixed liquor of stable performance; Graphene needs its dispersion treatment before use, and dispersing mode is ultrasonic disperse 45min in absolute ethyl alcohol.
(3), by mixed liquor to brush or the mode of spraying is coated on film-forming carrier and forms conductive filler layer, film-forming carrier is the diaphragm be made up of PET material, its thickness is 0.18mm, the thickness of conductive filler layer is 70um, after having applied, drying can obtain the exothermic material be made up of conductive filler layer and film-forming carrier.
The experiment proved that, after the present embodiment adopts the preparation method of above-mentioned special parameter, the resistivity obtaining heater is only 3.4 Ω cm.
Embodiment 7
A preparation method for nano material heater, comprises the following steps:
(1), in polyvinyl alcohol add deionized water, the mass ratio of polyvinyl alcohol and deionized water is 10:90, then at the temperature of 95 degree, makes polyvinyl alcohol uniform dissolution in deionized water in the mode stirred, obtains lysate; Wherein, deionized water joins after in polyvinyl alcohol, heat temperature raising while stirring.
(2), in lysate add conductive filler and auxiliary agent, conductive filler is carbon black, and the mass ratio of carbon black and polyvinyl alcohol is 10:90; Auxiliary agent is comprise the surfactant that L-lysine, sodium lignin sulfonate and acetone combines; Carbon black and auxiliary agent join after in lysate in proportion, adopt stirring or other ad hoc fashion to make it mix, obtain the mixed liquor of stable performance; Graphene needs its dispersion treatment before use, and dispersing mode is ultrasonic disperse 50min in absolute ethyl alcohol.
(3), by mixed liquor to brush or the mode of spraying is coated on film-forming carrier and forms conductive filler layer, film-forming carrier is the diaphragm be made up of PET material, its thickness is 0.2mm, the thickness of conductive filler layer is 75um, after having applied, drying can obtain the exothermic material be made up of conductive filler layer and film-forming carrier.
The experiment proved that, after the present embodiment adopts the preparation method of above-mentioned special parameter, the resistivity obtaining heater is only 4.5 Ω cm.
Embodiment 8
A preparation method for nano material heater, comprises the following steps:
(1), in polyvinyl alcohol add deionized water, the mass ratio of polyvinyl alcohol and deionized water is 8:92, then at the temperature of 95 degree, makes polyvinyl alcohol uniform dissolution in deionized water in the mode stirred, obtains lysate; Wherein, deionized water joins after in polyvinyl alcohol, heat temperature raising while stirring.
(2), in lysate add conductive filler and auxiliary agent, conductive filler is carbon black, and the mass ratio of carbon black and polyvinyl alcohol is 30:70; Auxiliary agent is comprise the surfactant that n-butanol, sodium lignin sulfonate and acetone combines; Carbon black and auxiliary agent join after in lysate in proportion, adopt stirring or other ad hoc fashion to make it mix, obtain the mixed liquor of stable performance; Graphene needs its dispersion treatment before use, and dispersing mode is ultrasonic disperse 60min in absolute ethyl alcohol.
(3), by mixed liquor to brush or the mode of spraying is coated on film-forming carrier and forms conductive filler layer, film-forming carrier is the diaphragm be made up of PET material, its thickness is 0.19mm, the thickness of conductive filler layer is 90um, after having applied, drying can obtain the exothermic material be made up of conductive filler layer and film-forming carrier.
The experiment proved that, after the present embodiment adopts the preparation method of above-mentioned special parameter, the resistivity obtaining heater is only 1.8 Ω cm.
Embodiment 9
A preparation method for nano material heater, comprises the following steps:
(1), in polyvinyl alcohol add deionized water, the mass ratio of polyvinyl alcohol and deionized water is 9:91, then at the temperature of 95 degree, makes polyvinyl alcohol uniform dissolution in deionized water in the mode stirred, obtains lysate; Wherein, deionized water joins after in polyvinyl alcohol, heat temperature raising while stirring.
(2), in lysate add conductive filler and auxiliary agent, conductive filler is carbon black, and the mass ratio of carbon black and polyvinyl alcohol is 20:80; Auxiliary agent adopts acetone as surfactant; Carbon black and auxiliary agent join after in lysate in proportion, adopt stirring or other ad hoc fashion to make it mix, obtain the mixed liquor of stable performance; Graphene needs its dispersion treatment before use, and dispersing mode is ultrasonic disperse 55min in absolute ethyl alcohol.
(3), by mixed liquor to brush or the mode of spraying is coated on film-forming carrier and forms conductive filler layer, film-forming carrier is the diaphragm be made up of PET material, its thickness is 0.11mm, the thickness of conductive filler layer is 100um, after having applied, drying can obtain the exothermic material be made up of conductive filler layer and film-forming carrier.
The experiment proved that, after the present embodiment adopts the preparation method of above-mentioned special parameter, the resistivity obtaining heater is only 3.1 Ω cm.
Claims (10)
1. a preparation method for nano material heater, is characterized in that comprising the following steps:
(1), in polyvinyl alcohol add deionized water, obtain polyvinyl alcohol dissolution to the lysate in deionized water;
(2), in lysate add conductive filler and auxiliary agent, obtain mixed liquor;
(3), by mixed liquor be coated on film-forming carrier and form conductive filler layer, after drying, obtain the heater be made up of conductive filler layer and film-forming carrier.
2. the preparation method of a kind of nano material heater as claimed in claim 1, is characterized in that: in described step (1), the mass ratio of polyvinyl alcohol and deionized water is 7-10:93-90.
3. the preparation method of a kind of nano material heater as claimed in claim 1 or 2, is characterized in that: in described step (1) polyvinyl alcohol at the temperature of 90-95 degree with the mode uniform dissolution stirred in deionized water.
4. the preparation method of a kind of nano material heater as claimed in claim 1, is characterized in that: the conductive filler in described step (2) is one or both the mixing in Graphene, carbon black.
5. the preparation method of a kind of nano material heater as claimed in claim 4, it is characterized in that: when described conductive filler is Graphene, the mass ratio of Graphene and polyvinyl alcohol is 1-10:99-90, when described conductive filler is carbon black, the mass ratio of carbon black and polyvinyl alcohol is 10-30:90-70, when described conductive filler is Graphene with the mixing of carbon black, Graphene is 1-16:1-4:98-80 than carbon black than the mass ratio of polyvinyl alcohol.
6. the preparation method of a kind of nano material heater as claimed in claim 4, is characterized in that: described Graphene needs its dispersion treatment before use, dispersing mode is ultrasonic disperse 30-60min in absolute ethyl alcohol.
7. the preparation method of a kind of nano material heater as claimed in claim 1, is characterized in that: the auxiliary agent in described step (2) is the surfactant comprising one or more combinations in absolute ethyl alcohol, ethylene glycol, Tween-80, lauryl sodium sulfate, neopelex, L-lysine, sodium lignin sulfonate, acetone, n-butanol.
8. the preparation method of a kind of nano material heater as claimed in claim 1, it is characterized in that: the film-forming carrier in described step (3) is the diaphragm be made up of PET material, its thickness is 0.1-0.2mm.
9. the preparation method of a kind of nano material heater as claimed in claim 1, is characterized in that: the mixed liquor in described step (3) is coated on film-forming carrier in the mode of brushing or spray, and coating thickness is 60-100um.
10. the preparation method of a kind of nano material heater as claimed in claim 1, is characterized in that: the heater surface in described step (3) is laid with tough film.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108601411A (en) * | 2016-01-26 | 2018-09-28 | 黑达乐格瑞菲工业有限公司 | Heatable clothes are used for the fabric and manufacturing method of this clothes |
| CN113433173A (en) * | 2021-06-28 | 2021-09-24 | 陕西科技大学 | Flexible material with electrogenerated heat, humidity and VOC (volatile organic compound) sensing characteristics and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148551A (en) * | 2007-11-01 | 2008-03-26 | 湖南大学 | Carbon series electric heating coating |
| CN201178890Y (en) * | 2008-03-03 | 2009-01-14 | 谷月 | Household electric mattress pad |
| CN103747548A (en) * | 2013-12-20 | 2014-04-23 | 深圳市千积水电子材料有限公司 | Heating structure including transparent-grapheme circuit and preparation method and application of heating structure |
-
2015
- 2015-09-30 CN CN201510635048.4A patent/CN105120536A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101148551A (en) * | 2007-11-01 | 2008-03-26 | 湖南大学 | Carbon series electric heating coating |
| CN201178890Y (en) * | 2008-03-03 | 2009-01-14 | 谷月 | Household electric mattress pad |
| CN103747548A (en) * | 2013-12-20 | 2014-04-23 | 深圳市千积水电子材料有限公司 | Heating structure including transparent-grapheme circuit and preparation method and application of heating structure |
Non-Patent Citations (1)
| Title |
|---|
| 陈艳华: "聚合物/石墨烯纳米复合材料制备与性能研究", 《中国优秀博士论文全文数据库》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108601411A (en) * | 2016-01-26 | 2018-09-28 | 黑达乐格瑞菲工业有限公司 | Heatable clothes are used for the fabric and manufacturing method of this clothes |
| US11122840B2 (en) | 2016-01-26 | 2021-09-21 | Haydale Graphene Industries Plc | Heatable garment, fabrics for such garments, and methods of manufacture |
| CN114532634A (en) * | 2016-01-26 | 2022-05-27 | 黑达乐格瑞菲工业有限公司 | Heatable garment, fabric for such a garment and method of manufacture |
| US11918061B2 (en) | 2016-01-26 | 2024-03-05 | Haydale Graphene Industries Plc | Heatable garment, fabrics for such garments, and methods of manufacture |
| CN113433173A (en) * | 2021-06-28 | 2021-09-24 | 陕西科技大学 | Flexible material with electrogenerated heat, humidity and VOC (volatile organic compound) sensing characteristics and preparation method thereof |
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