CN106187264A - A kind of preparation method with electric heating and heat sinking function thin film - Google Patents
A kind of preparation method with electric heating and heat sinking function thin film Download PDFInfo
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- CN106187264A CN106187264A CN201610580547.2A CN201610580547A CN106187264A CN 106187264 A CN106187264 A CN 106187264A CN 201610580547 A CN201610580547 A CN 201610580547A CN 106187264 A CN106187264 A CN 106187264A
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/71—Ceramic products containing macroscopic reinforcing agents
- C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
- C04B35/80—Fibres, filaments, whiskers, platelets, or the like
- C04B35/83—Carbon fibres in a carbon matrix
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- C—CHEMISTRY; METALLURGY
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- 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
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- C—CHEMISTRY; METALLURGY
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- 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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- 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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C—CHEMISTRY; METALLURGY
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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Abstract
A kind of preparation method with electric heating and heat sinking function thin film is graphene oxide solution ultrasonic disperse, obtains graphene oxide solution carbon solution, and carbon fiber substrate is dried after impregnating in poly-vinyl alcohol solution, obtains containing polyvinyl alcohol carbon fiber substrate；To be combined with graphene oxide solution carbon solution containing polyvinyl alcohol carbon fiber substrate, obtain carbon fiber/graphene oxide composite membrane；The carbon fiber obtained/graphene oxide composite membrane is carried out high-temperature hot reduction in inertia or reducing atmosphere, obtains electric heating and heat sinking function thin film.The present invention has low cost, good cycling stability, the advantage that can be mass-produced.
Description
Technical field
The invention belongs to a kind of preparation method being provided simultaneously with electric heating and heat sinking function thin film.
Background technology
In recent years, owing to Environmental degree of concern strengthens, Development of Electric Vehicles is rapid, as electric powered motor source
The service behaviour of lithium ion battery and life-span temperature influence very big, when operating ambient temperature is too high, work long hours meeting
Internal temperature of battery too high generation temperature protection, electric discharge is caused to stop；When operating ambient temperature is too low, lithium ion activity can drop
Low, cause capacity to reduce, even completely lose discharge capability.Prior art improves low temperature ring generally by heating plate etc.
Border, and improve hot environment by radiating modes such as fans, such as patent CN 204793107 U, heat radiation is by fan, heating
Being to use heating plate, both are implemented in combination with controlling the purpose of temperature, and which can play the purpose of battery thermal management, but by
Complicated in its structure, efficiency is low, in-convenience in use；If heating and heat radiation can be united two into one, power source body not only can be reduced
Long-pending, and the efficiency of battery can be improved.
Carbon fiber is a kind of fibrous material through high temperature cabonization, and its carbon content is higher than 85%.Carbon fiber has high-strength, low
The excellent performance such as close, corrosion-resistant, high temperature resistant, has important using value, by carbon in many fields such as aviation, electronics, machineries
Fiber hybrid arrangement forms the matrixes such as carbon fiber paper, and carbon fiber can form conductive network, thus possesses electrically heated function.
Graphene is the hardest the thinnest material known to current world, has the heat-conductivity conducting performance of excellence, heat conduction
Coefficient is up to 5300W/ (m K), becomes a nova in heat sink material field.Graphene sheet layer overlap joint forms graphene film can
To form heat conduction network, heat conductivity can be the most hundreds of, more excellent than conventional graphite material.The preparation method master of Graphene
There are following three kinds: mechanical stripping method, chemical vapour deposition technique, chemistry redox method.Chemistry redox method prepares graphite
Alkene low cost, it is possible to achieve scale, is the most the more commonly used method preparing Graphene in a large number.But the stone of preparation at present
Ink its electric conductivity of alkene film is the most bad, hardly results in perfect graphene film Rotating fields, graphite mainly due to various preparation methoies
The transmission of the defective effect lamella electronics on alkene, and then affect its electric conductivity.
Summary of the invention
It is an object of the invention to provide a kind of radiating efficiency high, conduct electricity very well has electric heating and heat sinking function thin film
Preparation method.
The present invention is to possess the carbon fiber product of electrical heating performance as matrix, impregnates in PVAC polyvinylalcohol, regulation and control
The micro structure of matrix, is combined with graphene oxide and obtains carbon fiber/graphene oxide (CF/GO) composite membrane, then by its high temperature
Thermal reduction, obtains having electric heating and heat sinking function thin film.
Electric heating of the present invention and heat sinking function method for manufacturing thin film, it specifically includes following processing step:
(1) graphene oxide solution ultrasonic disperse, obtains graphene oxide solution carbon solution so that it is lamella separates, thus
Form the monolithic layer redox graphene of excellent thermal conductivity；
(2) carbon fiber substrate is dried after impregnating in polyvinyl alcohol (PVA) solution, obtains containing polyvinyl alcohol carbon fiber-based
Body, the micro structure of Effective Regulation carbon fiber substrate, thus regulate and control the load capacity of graphene oxide；
(3) step (2) is passed through leaching containing polyvinyl alcohol carbon fiber substrate with step (1) graphene oxide solution carbon solution
The modes such as stain, pressure assistant depositing, coating are combined, and obtain carbon fiber/graphene oxide (CF/GO) composite membrane；
(4) carbon fiber/graphene oxide (CF/GO) composite membrane step (3) obtained is in inertia or reducing atmosphere
Carry out high-temperature hot reduction, obtain electric heating and heat sinking function thin film.
Graphene oxide as above be mechanical stripping method, chemical vapour deposition technique, epitaxial growth method, chemical oxidation also
The one of former method or its mixture；
The concentration of graphene oxide as above is 1-15mg/ml, and ultrasonic time is 20-120min, and ultrasonic power is
100-500W；
The carbon fiber substrate as mentioned above with electric heating function is asphalt base carbon fiber, polyacrylonitrile-based carbon fibre, phenolic aldehyde
Paper prepared by the mixture of one or more in base carbon fibre, viscose-based carbon fiber, vapor phase growth base carbon fibre or cloth, carbon is fine
Dimension hplc is 10-50g/m2；
The temperature of high-temperature hot reduction is 600-1500 DEG C as mentioned above, and heat treatment time is 0.5-6 hour, inertia, reduction
Property atmosphere is argon, nitrogen, helium or hydrogen.
Present invention have an advantage that
The invention provides a kind of preparation method with electric heating and heat sinking function thin film, abundant raw material source, preparation
Membrane material low cost, intensity is high, and pliability is good, it is easy to industrialized production and use.
The present invention is provided simultaneously with the function of electrical heating and heat radiation, may be used for the heat management aspect of battery, is coated on battery
Surface even can be placed in the electrolyte of battery (owing to carbon fiber and Graphene are Carbon Materials, performance temperature and resistance to height
Warm, corrosion-resistant, service life length), when ambient temperature is relatively low, electrified regulation improve battery operating temperature, in ambient temperature
Time higher, the heat of battery ambient as good heat sink material, can be shifted rapidly, make battery in applicable temperature high efficiency
Run.
Low-temperature heat and high temperature are effectively dispelled the heat and are combined by the present invention, the mode phase being combined with heating plate and radiator fan
Ratio, has saving volume, alleviates the advantages such as quality and efficiency are high, preparation is simple.
Accompanying drawing explanation
Fig. 1 is the SEM picture of carbon fiber substrate；
Fig. 2 is the SEM picture of electric heating and heat sinking function thin film；
When Fig. 3 is 10cm × 10cm electric heating and heat sinking function thin film electrified regulation, temperature changes over curve.
Detailed description of the invention
Embodiment 1
(1) the 15mg/ml graphene oxide solution that prepared by chemical vapour deposition technique, supersound process under the conditions of 100W
30min, obtains graphene oxide solution carbon solution；
(2) carbon fiber-containing 10g/m2Asphalt base carbon fiber cloth impregnate in polyvinyl alcohol (PVA) solution after dry；
(3) the graphene oxide solution carbon solution in step (1) is coated in step (2) containing polyvinyl alcohol carbon fiber-based
Carbon fiber/graphene oxide (CF/GO) composite membrane is obtained after drying on body；
(4) carbon fiber/graphene oxide (CF/GO) composite membrane that step (3) is obtained under an argon atmosphere 600 DEG C carry out
High-temperature hot reduction 0.5h obtains having electric heating and heat sinking function thin film.Testing its heat conductivity is 50W/ (m K), and surface resistance is
8.62Ω/cm2。
Embodiment 2
(1) supersound process 40min under the conditions of 10mg/ml graphene oxide solution 200W that prepared by epitaxial growth method, obtains
Graphene oxide solution carbon solution；
(2)30g/m2Viscose-based carbon fiber cloth impregnate in polyvinyl alcohol (PVA) solution after dry；
(3) the graphene oxide solution carbon solution in step (1) is coated in step (2) containing polyvinyl alcohol carbon fiber-based
Carbon fiber/graphene oxide (CF/GO) composite membrane is obtained after drying on body；
(4) carbon fiber/graphene oxide (CF/GO) composite membrane that step (3) is obtained under helium atmosphere 800 DEG C carry out
High-temperature hot reduction 1h obtains having electric heating and heat sinking function thin film.Testing its heat conductivity is 80W/ (m K), and surface resistance is
7.51Ω/cm2。
Embodiment 3
(1) supersound process 20min under the conditions of 5mg/ml graphene oxide solution 100W that prepared by mechanical stripping method, obtains oxygen
Functionalized graphene solution carbon solution；
(2)20g/m2Phenolic aldehyde base carbon fibre cloth impregnate in polyvinyl alcohol (PVA) solution after dry；
(3) the graphene oxide solution carbon solution in step (1) is coated in step (2) containing polyvinyl alcohol carbon fiber-based
Carbon fiber/graphene oxide (CF/GO) composite membrane is obtained after drying on body；
(4) carbon fiber/graphene oxide (CF/GO) composite membrane that step (3) is obtained in a nitrogen atmosphere 600 DEG C carry out
High-temperature hot reduction 3h obtains having electric heating and heat sinking function thin film.Testing its heat conductivity is 40W/ (m K), and surface resistance is
7.85Ω/cm2。
Embodiment 4
(1) supersound process 30min under the conditions of 10mg/ml graphene oxide solution 300W that prepared by chemistry redox method,
Obtain graphene oxide solution carbon solution；
(2)40g/m2Gas-phase growth of carbon fibre cloth impregnate in polyvinyl alcohol (PVA) solution after dry；
(3) the graphene oxide solution carbon solution in step (1) is coated in step (2) containing polyvinyl alcohol carbon fiber-based
Carbon fiber/graphene oxide (CF/GO) composite membrane is obtained after drying on body；
(4) carbon fiber/graphene oxide (CF/GO) composite membrane that step (3) is obtained in a nitrogen atmosphere 1000 DEG C enter
Row high-temperature hot reduction 3h obtains having electric heating and heat sinking function thin film.Testing its heat conductivity is 100W/ (m K), and surface resistance is
6.96Ω/cm2。
Embodiment 5
(1) supersound process 30min under the conditions of 1mg/ml graphene oxide solution 100W that prepared by chemistry redox method,
To graphene oxide solution carbon solution；
(2)50g/m2Polyacrylonitrile-based carbon fibre cloth impregnate in polyvinyl alcohol (PVA) solution after dry；
(3) the graphene oxide solution carbon solution in step (1) is coated in step (2) containing polyvinyl alcohol carbon fiber-based
Carbon fiber/graphene oxide (CF/GO) composite membrane is obtained after drying on body；
(4) carbon fiber/graphene oxide (CF/GO) composite membrane that step (3) is obtained in a hydrogen atmosphere 1000 DEG C enter
Row high-temperature hot reduction 3h obtains having electric heating and heat sinking function thin film.Testing its heat conductivity is 120W/ (m K), and surface resistance is
6.88Ω/cm2。
Embodiment 6
(1) supersound process 120min under the conditions of 8mg/ml graphene oxide solution 500W that prepared by chemistry redox method,
Obtain graphene oxide solution carbon solution；
(2)30g/m2Polyacrylonitrile-based carbon fibre cloth impregnate in polyvinyl alcohol (PVA) solution after dry；
(3) the graphene oxide solution carbon solution in step (1) is coated in step (2) containing polyvinyl alcohol carbon fiber-based
Carbon fiber/graphene oxide (CF/GO) composite membrane is obtained after drying on body；
(4) carbon fiber/graphene oxide (CF/GO) composite membrane that step (3) is obtained under an argon atmosphere 1500 DEG C enter
Row high-temperature hot reduction 6h obtains having electric heating and heat sinking function thin film.Testing its heat conductivity is 210W/ (m K), and surface resistance is
6.83Ω/cm2。
| Sample ID | Heat conductivity | Surface resistance |
| Carbon fiber substrate | 1W/(m·K) | 10.86Ω/cm2 |
| Embodiment 1 | 50W/(m·K) | 8.62Ω/cm2 |
| Embodiment 2 | 80W/(m·K) | 7.51Ω/cm2 |
| Embodiment 3 | 40W/(m·K) | 7.85Ω/cm2 |
| Embodiment 4 | 100W/(m·K) | 6.96Ω/cm2 |
| Embodiment 5 | 120W/(m·K) | 6.88Ω/cm2 |
| Embodiment 6 | 210W/(m·K) | 6.83Ω/cm2 |
Carbon fiber substrate can realize electrified regulation function, but tests its heat conductivity, about 1W/ (m K), face
Resistance is 10.86 Ω/cm2, after being combined with Graphene, its thermal diffusion coefficient can improve tens of even hundreds times, can meet
As the requirement of heat sink material, the change of its surface resistance is little, still has electric heating function, has widened range of application.
Although the present invention has carried out a certain degree of description, without departing from the scope of, can carry out each
The suitably change of individual condition is it can be understood as the invention is not restricted to embodiments described above, and is attributed to the scope of claim,
Including the equivalent of described factor, all in this patent scope.
Claims (6)
1. a preparation method with electric heating and heat sinking function thin film, it is characterised in that comprise the steps:
(1) graphene oxide solution ultrasonic disperse, obtains graphene oxide solution carbon solution so that it is lamella separates, thus is formed
The monolithic layer redox graphene of excellent thermal conductivity；
(2) carbon fiber substrate is dried after impregnating in poly-vinyl alcohol solution, obtains containing polyvinyl alcohol carbon fiber substrate；
(3) by step (2) containing polyvinyl alcohol carbon fiber substrate and step (1) graphene oxide solution carbon solution by dipping,
Pressure assistant depositing or coating method are combined, and obtain carbon fiber/graphene oxide composite membrane；
(4) carbon fiber/graphene oxide composite membrane that step (3) obtains is carried out high-temperature hot also in inertia or reducing atmosphere
Former, obtain electric heating and heat sinking function thin film.
A kind of preparation method with electric heating and heat sinking function thin film, it is characterised in that described
Graphene oxide is mechanical stripping method, chemical vapour deposition technique, epitaxial growth method, the one of chemistry redox method or its mixing
Thing.
A kind of preparation method with electric heating and heat sinking function thin film, it is characterised in that described
The concentration of graphene oxide is 1-15mg/ml, and ultrasonic time is 20-120min, and ultrasonic power is 100-500W.
A kind of preparation method with electric heating and heat sinking function thin film, it is characterised in that described carbon
Fibrous matrix is asphalt base carbon fiber, polyacrylonitrile-based carbon fibre, phenolic aldehyde base carbon fibre, viscose-based carbon fiber, vapor phase growth base
Paper prepared by the mixture of one or more in carbon fiber or cloth, carbon fiber content is 10-50g/m2。
A kind of preparation method with electric heating and heat sinking function thin film, it is characterised in that described height
The temperature of warm reduction is 600-1500 DEG C, and heat treatment time is 0.5-6 hour.
A kind of preparation method with electric heating and heat sinking function thin film, it is characterised in that inertia, also
Originality atmosphere is argon, nitrogen, helium or hydrogen.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107141007A (en) * | 2017-05-26 | 2017-09-08 | 中国科学院山西煤炭化学研究所 | A kind of composite heat conduction film based on graphene and preparation method thereof |
| CN108823680A (en) * | 2018-04-28 | 2018-11-16 | 江苏月源纤维科技有限公司 | A kind of core-skin type graphene adulterates the preparation method of conductive fiber and yarn |
| CN110282974A (en) * | 2019-06-28 | 2019-09-27 | 华南理工大学 | Oriented alignment magnetic carbon fiber graphene composite film and its preparation method and application |
| CN111690160A (en) * | 2020-06-08 | 2020-09-22 | 安徽福斯特渔具有限公司 | Novel high-performance composite material presoaking compounding process |
| CN112646300A (en) * | 2020-12-22 | 2021-04-13 | 蜂巢能源科技有限公司 | Battery cell buffer material, preparation method and application thereof |
| CN114773647A (en) * | 2022-06-01 | 2022-07-22 | 中国科学院过程工程研究所 | Carbon fiber prepreg and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103482996A (en) * | 2013-10-14 | 2014-01-01 | 中国科学院山西煤炭化学研究所 | Method for preparing carbon fibre and graphene composite paper |
| CN103801686A (en) * | 2013-12-31 | 2014-05-21 | 深圳市国创新能源研究院 | Graphene nanocomposite and preparation method thereof |
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2016
- 2016-07-21 CN CN201610580547.2A patent/CN106187264A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103482996A (en) * | 2013-10-14 | 2014-01-01 | 中国科学院山西煤炭化学研究所 | Method for preparing carbon fibre and graphene composite paper |
| CN103801686A (en) * | 2013-12-31 | 2014-05-21 | 深圳市国创新能源研究院 | Graphene nanocomposite and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107141007A (en) * | 2017-05-26 | 2017-09-08 | 中国科学院山西煤炭化学研究所 | A kind of composite heat conduction film based on graphene and preparation method thereof |
| CN108823680A (en) * | 2018-04-28 | 2018-11-16 | 江苏月源纤维科技有限公司 | A kind of core-skin type graphene adulterates the preparation method of conductive fiber and yarn |
| CN110282974A (en) * | 2019-06-28 | 2019-09-27 | 华南理工大学 | Oriented alignment magnetic carbon fiber graphene composite film and its preparation method and application |
| CN111690160A (en) * | 2020-06-08 | 2020-09-22 | 安徽福斯特渔具有限公司 | Novel high-performance composite material presoaking compounding process |
| CN112646300A (en) * | 2020-12-22 | 2021-04-13 | 蜂巢能源科技有限公司 | Battery cell buffer material, preparation method and application thereof |
| CN112646300B (en) * | 2020-12-22 | 2023-01-03 | 蜂巢能源科技有限公司 | Battery cell buffer material, preparation method and application thereof |
| CN114773647A (en) * | 2022-06-01 | 2022-07-22 | 中国科学院过程工程研究所 | Carbon fiber prepreg and preparation method and application thereof |
| CN114773647B (en) * | 2022-06-01 | 2023-03-03 | 中国科学院过程工程研究所 | Carbon fiber prepreg and preparation method and application thereof |
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Application publication date: 20161207 |