CN105753475B - A kind of pressure sensitive Electric radiant Heating Film based on graphene - Google Patents
A kind of pressure sensitive Electric radiant Heating Film based on graphene Download PDFInfo
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- CN105753475B CN105753475B CN201610049003.3A CN201610049003A CN105753475B CN 105753475 B CN105753475 B CN 105753475B CN 201610049003 A CN201610049003 A CN 201610049003A CN 105753475 B CN105753475 B CN 105753475B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
- C04B35/522—Graphite
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
Abstract
The invention discloses a kind of pressure sensitive Electric radiant Heating Film based on graphene, including graphene Electric radiant Heating Film and the insulating protective layer coated in both sides above and below efficient pressure-sensitive graphene Electric radiant Heating Film；The graphene Electric radiant Heating Film is by the way that graphene aerogel is warming up to 500 800 DEG C with the speed of 0.1 1 DEG C/min, keep the temperature 0.5 2h, again 1,000 1300 DEG C are warming up to the speed of 13 DEG C/min, keep the temperature 0.5 3h, then 2,000 3000 DEG C are warming up to the speed of 58 DEG C/min, 0.5 4h is kept the temperature, is obtained after Temperature fall, its density is 0.16 15mg/cm3, bore hole size is between 10 200 μm.The Electric radiant Heating Film of the present invention is responded in differently strained lower generation fast electric heating, and as stress is bigger, electro-thermal response saturation temperature is higher, and maximum temperature excursion is 60 DEG C 420 DEG C.Present invention process is simple, and energy consumption is low, can mass produce, the pressure-sensitive thermo electric material excellent performance of graphene of acquisition.
Description
Technical field
The present invention relates to a kind of pressure sensitive Electric radiant Heating Film based on graphene.
Background technology
Graphene is a kind of two-dimensional material of excellent performance, the strong Jims of Univ Manchester UK's peace moral in 2004 and health
Si Tanding Nuo Woxiao loves professor is because the discovery of grapheme two-dimension material creativeness is granted Nobel's physics in 2010
Prize, the worldwide research boom of grapheme material has been started from this.Graphene is current optimal two-dimension nano materials, is had
The specific surface area of superelevation and excellent conduction and heat conductivility.Graphene macroscopic view membrane material is frequently utilized for macroscopical thermo electric material,
For transparent flexible Electric radiant Heating Film deicing demisting etc..Grapheme material has lightweight, preparation process letter compared with business thermo electric material
The advantages that single, flexible.It is frequently utilized for electronic curtain demisting, the quick deicing of aircraft wing etc..Graphene three-dimensional material is used at present
The research in electric heating field is even seldom.Due to porous graphene material more lightweight, and there is three-dimensional structure, can adsorb with
And De contamination, and have different resistance variations under pressure, it is a kind of excellent selection for pressure sensitive thermo electric material.
The content of the invention
The purpose of the present invention is to overcome the deficiencies of prior art and provide a kind of pressure sensitive Electric radiant Heating Film based on graphene.
The purpose of the present invention is what is be achieved through the following technical solutions：A kind of pressure sensitive Electric radiant Heating Film based on graphene, bag
Include graphene Electric radiant Heating Film and the insulating protective layer coated in both sides above and below efficient pressure-sensitive graphene Electric radiant Heating Film；The graphene electricity
Hotting mask is obtained by being that graphene aerogel is placed in inert atmosphere to carry out high-temperature heat treatment after Temperature fall；The high temperature
The mode of heat treatment is：
(1) graphene aerogel is warming up to 500-800 DEG C with the speed of 0.1-1 DEG C/min, keeps the temperature 0.5-2h；
(2) 1000-1300 DEG C is warming up to the speed of 1-3 DEG C/min, keeps the temperature 0.5-3h；
(3) 2000-3000 DEG C is warming up to the speed of 5-8 DEG C/min, keeps the temperature 0.5-4h.
Further, the density of graphene aerogel is 0.16~15mg/cm3, aperture is 10~200 μm.
Further, the graphene film average-size in the graphene aerogel is more than 50 microns.
The beneficial effects of the present invention are the pressure sensitive Electric radiant Heating Film based on graphene that the present invention is prepared, in difference
Strain is lower to produce fast electric heating response, and as stress is bigger, electro-thermal response saturation temperature is higher, under 5V constant pressures, 10% should
Under change, material surface electro-thermal response maximum temperature is 60 DEG C, and under 20% strain, material surface electro-thermal response maximum temperature is
130 DEG C, under 30% strain, material surface electro-thermal response maximum temperature is 200 DEG C, under 40% strain, material surface electric heating
It is 270 DEG C to respond maximum temperature, and under 50% strain, material surface electro-thermal response maximum temperature is 350 DEG C, 60% strain
Under, material surface electro-thermal response maximum temperature is 420 DEG C.Present invention is simple, the graphene-based pressure-sensitive electric heating material of preparation
Expect excellent performance, electro-thermal response is fast, suitable for large-scale production, can be used for the regeneration of absorbent, catalysis skeleton etc..
Embodiment：
Present invention is further illustrated below in conjunction with example.
Embodiment 1：It is 5mg/cm by density3, aperture is that 150 μm of graphene aerogel is placed in inert atmosphere according to table
Mode shown in 1~table 3 carries out high-temperature heat treatment, and the efficient pressure-sensitive Electric radiant Heating Film based on graphene can be obtained after Temperature fall,
Then PDMS insulating layers are respectively coated in the both sides of Electric radiant Heating Film, form Electric radiant Heating Film, fix electrode, electricity respectively at the both ends of Electric radiant Heating Film
Pole is connected with graphene Electric radiant Heating Film；The electrocaloric effect measured is shown in Table 1~table 3.
Table 1
Table 2
Table 3
From table 1 to table 3 as can be seen that being determined in terms of the performance of Electric radiant Heating Film mainly has two, one material internal graphite oxide
Alkene chip architecture repair situation, i.e., functional group come off and high temperature under carbon conjugated structure reparation.Second, material internal three-dimensional takes
To the continuity of structure, i.e., the connectivity of internal lamellar structure.The two collective effect is to increase the performance of graphene Electric radiant Heating Film.
In table 1, by compare A1 B1 C1 D1 E1, the temperature of A1 is too low, is not enough to remove most of degradable official
It can roll into a ball, cause gas in second step pyroprocess largely quickly to produce, tear lamellar structure at high temperature；E1 temperature is excessive, production
Angry body is too fast, can largely tear material internal structure, both can cause deterioration in material properties.Have only in B1, C1, D1 temperature
Under, functional group can slowly and thoroughly remove, to ensure material property.By compare C1 F1 G1 H1, F1 heating rates are too low,
Gas release is excessively slow, it is impossible to so that material internal forms through hole；H1 temperature-rise periods are too fast, and gas release is too fast, tear material
Expect internal structure, be unfavorable for forming transmission channel.By compare C1 I1 J1 K1 L1 M1, I1 soaking times are too short, it is impossible to protect
The degraded of the most of functional group of card；M1 insulating processes are long, can absorb the tar inside stove, are unfavorable for the lifting of performance.J1、
K1, L1 just avoid both of the above.
In table 2, by compare A2 B2 C2 D2 E2, A2 heating rates are too low, seriously affect compressibility energy and electric heating
Performance.E2 programming rates are excessive, can tear graphene interlayer structure so that graphene aerogel degradation.Have only B2, C2,
Under the programming rate of D2, it just capable can not only ensure aerogel structure but also ensure the electric conductivity of graphene.By compare C2 F2
G2 H2, F2 temperature is too low so that stable functional group cannot be sufficiently disengaged from, it is follow-up it is graphited during easily transition release
Deflation body, destroys the internal structure of aeroge；By compare C2 I2 J2 K2 L2 M2, I2 soaking times are too short, stable official
Can roll into a ball fully to come off；M2 overlong times, the easy tar adsorption of graphene aerogel film, are unfavorable for carrying for electric heating film properties
Rise；And can not only ensure fully coming off for stabilising functional group under the conditions of C2, J2, K2, but also it is avoided that the puzzlement of tar.
In table 3, by compare A3 B3 C3 D3 E3, A3 heating rates are too low, and most stabilising functional group comes off excessively slow, no
Beneficial to the formation of graphene aerogel conductive network；E3 temperature-rise periods are too fast, and gas release and high-temperature expansion are too fast, easily broken
The structure of bad graphene aerogel.Only in the case of B3, C3, D3, shape that the graphene aerogel of conductive network could be stablized
Into the structure on graphene could be repaired slowly.By compare C3 F3 G3 H3 I3, F3 outlet temperatures are too low, graphene
Structure repair is not perfect enough, so various performances are all very poor；It could both ensure repairing for graphene-structured at a temperature of C3, G3, H3
It is multiple, and will not be vaporized.By compare C3 J3 K3 L3 M3, J3 soaking times are too low, and graphene-structured cannot be repaiied fully
Multiple, M3 soaking times are long, can also to adsorb the tar in furnace body, influence the performance of Electric radiant Heating Film.
Claims (3)
1. a kind of pressure sensitive Electric radiant Heating Film based on graphene, it is characterised in that including graphene Electric radiant Heating Film and coated in efficient
The insulating protective layer of both sides above and below pressure-sensitive graphene Electric radiant Heating Film；The graphene Electric radiant Heating Film is by being to be placed in graphene aerogel
High-temperature heat treatment is carried out in inert atmosphere, is obtained after Temperature fall；The mode of the high-temperature heat treatment is：
（1）By graphene aerogel with 0.1-1oThe speed of C/min is warming up to 500-800o C, keeps the temperature 0.5-2h；
（2）With 1-3o The speed of C/min is warming up to 1000-1300oC, keeps the temperature 0.5-3h；
（3）With 5-8 o The speed of C/min is warming up to 2000-3000o C, keeps the temperature 0.5-4h.
2. pressure sensitive Electric radiant Heating Film according to claim 1, it is characterised in that the density of the graphene aerogel is 0.16
~15mg/cm3, aperture is 10 ~ 200 μm.
3. pressure sensitive Electric radiant Heating Film according to claim 1, it is characterised in that the graphene film in the graphene aerogel
Average-size is more than 50 microns.
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| CN109696290A (en) * | 2019-02-18 | 2019-04-30 | 中国空气动力研究与发展中心低速空气动力研究所 | A kind of wind energy conversion system wing panel Anti-icing Heat Loads demand measuring system |
| CN110089801B (en) * | 2019-05-24 | 2021-07-02 | 湖南云亭烯新材料科技有限公司 | Graphite alkene pressure-sensitive shoes that generate heat |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104828810A (en) * | 2015-05-07 | 2015-08-12 | 中国人民解放军国防科学技术大学 | Preparation method of graphene aerogel with ultrahigh specific surface area |
| CN104860294A (en) * | 2015-04-20 | 2015-08-26 | 复旦大学 | Three-dimensional graphene nanoribbon/carbon nanoribbon bridged structural material, and preparation method and application thereof |
| CN105253879A (en) * | 2015-11-23 | 2016-01-20 | 国家纳米科学中心 | High-porosity functional graphene material as well as preparation method and applications thereof |
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| US8993113B2 (en) * | 2010-08-06 | 2015-03-31 | Lawrence Livermore National Security, Llc | Graphene aerogels |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104860294A (en) * | 2015-04-20 | 2015-08-26 | 复旦大学 | Three-dimensional graphene nanoribbon/carbon nanoribbon bridged structural material, and preparation method and application thereof |
| CN104828810A (en) * | 2015-05-07 | 2015-08-12 | 中国人民解放军国防科学技术大学 | Preparation method of graphene aerogel with ultrahigh specific surface area |
| CN105253879A (en) * | 2015-11-23 | 2016-01-20 | 国家纳米科学中心 | High-porosity functional graphene material as well as preparation method and applications thereof |
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