CN110933782A - Method and device for using flexible graphene electrode as high borosilicate graphene conducting layer - Google Patents
Method and device for using flexible graphene electrode as high borosilicate graphene conducting layer Download PDFInfo
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- CN110933782A CN110933782A CN201911000280.5A CN201911000280A CN110933782A CN 110933782 A CN110933782 A CN 110933782A CN 201911000280 A CN201911000280 A CN 201911000280A CN 110933782 A CN110933782 A CN 110933782A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/06—Heater elements structurally combined with coupling elements or holders
- H05B3/08—Heater elements structurally combined with coupling elements or holders having electric connections specially adapted for high temperatures
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Abstract
The invention relates to the technical field of conductive connection, in particular to a method and a device for using a flexible graphene electrode as a high borosilicate graphene conductive layer. According to the invention, the flexible graphene electrode is fixedly connected to the graphene layer of the high borosilicate through pasting the graphene layer, and the flexible graphene electrode is tightly connected with the high borosilicate graphene conducting layer, so that the equipment can stably run for a long time.
Description
Technical Field
The invention relates to the technical field of conductive connection, in particular to a method and a device for using a flexible graphene electrode as a high borosilicate graphene conductive layer.
Background
With the development of the technology, the research and application of the graphene electrode are more and more. For example, the flexible graphene electrode disclosed in the invention patents of china, namely, a graphene flexible electrode and a preparation method thereof (application No. 201910010197), and the graphene-based flexible electrode and a preparation method thereof (application No. 201910055667), can be used as an adaptive power supply for flexible electronic devices such as various wearable devices and skin-contacting devices.
To utilizing graphite alkene to generate heat on special object, how to utilize graphite alkene electrode electrically conductive become not yet to relate to in prior art, if on borosilicate (glass), heat the object in the borosilicate through graphite alkene layer, borosilicate material can't punch the installation electrode, if through the mode that compresses tightly with the electrode through pressing on graphite alkene layer, then junction resistance is great, generates heat easily or strikes sparks, is unfavorable for the long-term steady operation of equipment.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method and a device for using a flexible graphene electrode as a high borosilicate graphene conducting layer. According to the invention, the flexible graphene electrode is fixedly connected to the graphene layer of the high borosilicate through pasting the graphene layer, and the flexible graphene electrode is tightly connected with the high borosilicate graphene conducting layer, so that the equipment can stably run for a long time.
The technical scheme of the invention is as follows: a method for using a flexible graphene electrode as a high borosilicate graphene conducting layer is characterized by comprising the following steps:
step one, adhering first graphene slurry on high-boron silicon,
step two, drying the high borosilicate adhered with the first graphene slurry at the temperature of 300-800 ℃ for 20-50 minutes to form a first graphene layer on the high borosilicate;
adhering second graphene slurry to the flexible graphene electrode, and then attaching the flexible graphene electrode to the first graphene layer through the second graphene slurry; or adhering second graphene slurry to the first graphene layer, and then mounting the flexible graphene electrode on the second graphene slurry;
and step four, drying the high borosilicate adhered with the flexible graphene electrode at 300-800 ℃ for 20-50 minutes to dry the second graphene slurry into an adhered graphene layer, wherein the first graphene layer is connected with the flexible graphene electrode through the adhered graphene layer.
The method for using the flexible graphene electrode as the high borosilicate graphene conducting layer is characterized in that: and (3) arranging air guide holes on the flexible graphene electrode in the third step, wherein the distance between every two adjacent air guide holes is smaller than 7 mm.
The method for using the flexible graphene electrode as the high borosilicate graphene conducting layer is characterized in that: the conductivity of the first graphene slurry in the first step is less than 500S/cm.
The method for using the flexible graphene electrode as the high borosilicate graphene conducting layer is characterized in that: in the second step, the drying temperature of the first graphene slurry is 540-560 ℃, and the drying time is 35-40 minutes.
The method for using the flexible graphene electrode as the high borosilicate graphene conducting layer is characterized in that: in the third step, the second graphene slurry comprises, by weight, 10% -30% of graphene, 10% -50% of carbon nanotubes, 5% -30% of water-based resin, 15% -25% of glass powder and 15% -25% of a thickening agent.
The invention also discloses a device for using the flexible graphene electrode as a high borosilicate graphene conducting layer, which comprises high borosilicate, a first graphene layer, the flexible graphene electrode and a pasting graphene layer, wherein the high borosilicate is provided with the first graphene layer, and the device is characterized in that: the flexible graphene electrode is fixedly adhered to the first graphene layer through the adhered graphene layer.
According to the device of flexible graphite alkene electrode as borosilicate graphite alkene conducting layer as above, its characterized in that: the conductivity of the adhered graphene layer is greater than that of the first graphene layer.
According to the device of flexible graphite alkene electrode as borosilicate graphite alkene conducting layer as above, its characterized in that: the conductivity of the adhered graphene layer is more than 1000S/cm.
According to the device of flexible graphite alkene electrode as borosilicate graphite alkene conducting layer as above, its characterized in that: the first graphene layer has a conductivity of less than 500S/cm.
According to the device of flexible graphite alkene electrode as borosilicate graphite alkene conducting layer as above, its characterized in that: air guide holes are formed in the flexible graphene electrode, and the distance between every two adjacent air guide holes is smaller than 7 mm.
The invention has the beneficial effects that: 1. no other connection exists, and the process is fast to process. 2. And the glass cannot be damaged due to no welding. 3. The material is unanimous, and is firm durable, can not appear the crackle because of the difference of material heating efficiency in the junction, and is reliable and stable. 4. The resistance at the joint can be relatively small, so that the joint does not generate heat, thereby ensuring that the joint can operate for a long time. 5. When flexible graphite alkene electrode broad, guarantee through setting up the gas guide hole that in the stoving process, bubble or connection pine take off can not appear in flexible graphite alkene electrode bottom.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is another embodiment of the present invention.
Description of reference numerals: high borosilicate 1, first graphite alkene layer 2, flexible graphite alkene electrode 3, paste graphite alkene layer 4, air guide hole 5.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
The high borosilicate glass of the present invention is glass, preferably transparent glass.
Step one, adhering first graphene slurry to high boron silicon, wherein the graphene slurry can be adhered to the high boron silicon by a conventional screen printing process, and in the step, the graphene slurry has adhesive force and is in a sticky state, and preferably, the conductivity of the graphene slurry is less than 500S/cm so as to heat.
And step two, drying the high borosilicate adhered with the first graphene slurry, wherein the drying temperature is 300-800 ℃, the drying time is 20-50 minutes, moisture is mainly dried, the temperature is preferably 540-560 ℃, and the drying time is 35-40 minutes, so that the first graphene layer is formed on the high borosilicate. In the drying process, the borosilicate adhered with the graphene slurry is slowly heated to a high temperature from a normal temperature, and then the borosilicate is dried at a constant temperature, and the purpose of slowly heating to the high temperature is to ensure that the borosilicate is not cracked and the graphene slurry is not foamed in the heating process.
And step three, preferably selecting a second graphene slurry with better viscosity and lower resistivity, wherein the second graphene slurry comprises, by weight, 10% -30% of graphene, 10% -50% of carbon nanotubes, 5% -30% of water-based resin, 15% -25% of glass powder, 15% -25% of thickening agent, preferably 20% of glass powder and 20% of thickening agent. Therefore, the conductivity of the second graphene paste is larger than 1000S/cm, the viscosity of the second graphene paste is high, the viscosity coefficient can reach more than 5000cPs (centipoise), the second graphene paste is adhered to the flexible graphene electrode, and then the flexible graphene electrode is attached to the first graphene layer. Because the second graphene slurry has good adhesion performance, the drying step is convenient to carry out, the flexible graphene electrode cannot move after being adhered, and the flexible graphene electrode cannot move in the follow-up process.
As a further scheme of the present invention, a second graphene paste may be adhered to the first graphene layer, and then the flexible graphene electrode is mounted on the second graphene paste, but it may be difficult to uniformly distribute the second graphene paste on the first graphene layer, thereby reducing the performance of the product.
Generally, in order to improve the reliability of power supply and make the resistance of the connection smaller, the flexible graphene electrode needs to be wider, for example, the width of the flexible graphene electrode is 3cm, in the case that the flexible graphene electrode is wider, in the step four drying process, since the second graphene paste is covered under the flexible graphene electrode, the dried moisture cannot be discharged, and bubbles are easily formed. Therefore, before drying, the flexible graphene electrode can be provided with the air guide holes 5, and the diameter of the air guide holes 5 can be 0.5mm to 3mm, preferably 1mm to 2 mm. The air guide holes 5 must penetrate through the flexible graphene electrode and cannot be blind holes, and because the blind holes cannot be removed in the subsequent processing process, air bubbles or connection loosening can still be caused at the bottom of the flexible graphene electrode. The distance between the adjacent air guide holes 5 on the flexible graphene electrode is preferably less than 7mm, and preferably 1mm to 4mm between the adjacent air guide holes 5, so that the good conductive connection performance can be ensured, and the processing of the air guide holes 5 is facilitated.
Step four, then the borosilicate adhered with the flexible graphene electrode is dried, the drying temperature is 300-800 degrees, the drying time is 20-50 minutes, moisture is mainly dried, the preferable temperature is 540-560 degrees, the drying time is 35-40 minutes, the second graphene slurry is dried to be an adhered graphene layer, the first graphene layer and the flexible graphene electrode are firmly connected together through the adhered graphene layer, and therefore power can be supplied to the first graphene layer through the flexible graphene electrode.
The invention also discloses a device for using the flexible graphene electrode as a high borosilicate graphene conducting layer, which comprises a high borosilicate 1, a first graphene layer 2, a flexible graphene electrode 3 and a pasting graphene layer 4, as shown in fig. 1 and fig. 2, the first graphene layer 2 is uniformly arranged on the high borosilicate 1, the flexible graphene electrode 3 is fixedly pasted on the first graphene layer 2 through the pasting graphene layer 4, the electric conductivities of the first graphene layer 2 and the pasting graphene layer 4 can be the same, but for special fields, when the first graphene layer 2 needs high resistance to heat, the electric conductivity of the pasting graphene layer 4 is preferably larger than that of the first graphene layer 2, so that the heat at the pasting position can be reduced, the temperature at the pasting position is relatively low, and the connection position can be stably used for a long time. For the device of the graphene conducting layer which generates heat, the conductivity of the graphene layer 4 which is adhered to the device is large, generally the conductivity is larger than 1000S/cm, the conductivity of the first graphene layer 2 is small, generally the conductivity is smaller than 500S/cm, and therefore the heat generation amount of the joint is small when the device works normally, and the long-term stability of adhesion is guaranteed. As shown in fig. 3, in the device of the present invention, the flexible graphene electrode is preferably provided with air vents 5, and the distance between adjacent air vents 5 is preferably less than 7mm, and preferably 1mm to 4mm between adjacent air vents 5, so that not only is the good conductive connection performance ensured, but also the processing of the air vents 5 is facilitated.
Claims (10)
1. A method for using a flexible graphene electrode as a high borosilicate graphene conducting layer is characterized by comprising the following steps:
step one, adhering first graphene slurry on high-boron silicon,
step two, drying the high borosilicate adhered with the first graphene slurry at the temperature of 300-800 ℃ for 20-50 minutes to form a first graphene layer on the high borosilicate;
adhering second graphene slurry to the flexible graphene electrode, and attaching the flexible graphene electrode to the first graphene layer through the second graphene slurry; or adhering second graphene slurry to the first graphene layer, and then mounting the flexible graphene electrode on the second graphene slurry;
and step four, drying the high borosilicate adhered with the flexible graphene electrode at 300-800 ℃ for 20-50 minutes to dry the second graphene slurry into an adhered graphene layer, wherein the first graphene layer is connected with the flexible graphene electrode through the adhered graphene layer.
2. The method of claim 1, wherein the flexible graphene electrode is used as a high borosilicate graphene conductive layer, and the method comprises the following steps: and (3) arranging air guide holes on the flexible graphene electrode in the third step, wherein the distance between every two adjacent air guide holes is smaller than 7 mm.
3. A method of using a flexible graphene electrode as a conducting layer of high borosilicate graphene according to claim 1 or 2, wherein: the conductivity of the first graphene slurry in the first step is less than 500S/cm.
4. A method of using a flexible graphene electrode as a conducting layer of high borosilicate graphene according to claim 1 or 2, wherein: in the second step, the drying temperature of the first graphene slurry is 540-560 ℃, and the drying time is 35-40 minutes.
5. A method of using a flexible graphene electrode as a conducting layer of high borosilicate graphene according to claim 1 or 2, wherein: in the third step, the second graphene slurry comprises, by weight, 10% -30% of graphene, 10% -50% of carbon nanotubes, 5% -30% of water-based resin, 15% -25% of glass powder and 15% -25% of a thickening agent.
6. The utility model provides a device of flexible graphite alkene electrode as borosilicate graphite alkene conducting layer, includes borosilicate, first graphite alkene layer, flexible graphite alkene electrode, pastes graphite alkene layer, sets up first graphite alkene layer on the borosilicate, its characterized in that: the flexible graphene electrode is fixedly adhered to the first graphene layer through the adhered graphene layer.
7. The device of claim 6, wherein the flexible graphene electrode is used as a high borosilicate graphene conductive layer, and the device comprises: air guide holes are formed in the flexible graphene electrode, and the distance between every two adjacent air guide holes is smaller than 7 mm.
8. The device of claim 6 or 7, wherein the flexible graphene electrode is used as a high borosilicate graphene conducting layer, and the flexible graphene electrode is characterized in that: the conductivity of the adhered graphene layer is greater than that of the first graphene layer.
9. The device of claim 6 or 7, wherein the flexible graphene electrode is used as a high borosilicate graphene conducting layer, and the flexible graphene electrode is characterized in that: the conductivity of the adhered graphene layer is more than 1000S/cm.
10. The device of claim 6 or 7, wherein the flexible graphene electrode is used as a high borosilicate graphene conducting layer, and the flexible graphene electrode is characterized in that: the first graphene layer has a conductivity of less than 500S/cm.
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