CN112339395A - Manufacturing method of voltage-resistant and delamination-resistant aluminum-based graphene board - Google Patents
Manufacturing method of voltage-resistant and delamination-resistant aluminum-based graphene board Download PDFInfo
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- CN112339395A CN112339395A CN202011228931.9A CN202011228931A CN112339395A CN 112339395 A CN112339395 A CN 112339395A CN 202011228931 A CN202011228931 A CN 202011228931A CN 112339395 A CN112339395 A CN 112339395A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/162—Cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/164—Drying
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
- C25D11/08—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing inorganic acids
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/16—Pretreatment, e.g. desmutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/0064—Smoothing, polishing, making a glossy surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2311/00—Metals, their alloys or their compounds
- B32B2311/24—Aluminium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2313/00—Elements other than metals
- B32B2313/04—Carbon
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Abstract
The application discloses a manufacturing method of a voltage-resistant and delamination-resistant aluminum-based graphene board, and belongs to the technical field of graphene equipment manufacturing. A manufacturing method of a voltage-resistant and delamination-resistant aluminum-based graphene board comprises the following specific steps: primary treatment, electrochemical treatment, cleaning treatment and attaching treatment. It can realize increasing surface roughness, but does not influence withstand voltage intensity simultaneously, and layering between aluminum plate and the graphite alkene effectively when avoiding temperature variation effectively guarantees aluminum plate's aesthetic property and surface roughness.
Description
Technical Field
The application belongs to the field of graphene equipment manufacturing, and particularly relates to a manufacturing method of a voltage-resistant and delamination-resistant aluminum-based graphene board.
Background
In recent years, the electric heating market is rapidly developed along with the vigorous development of 'changing coal into electricity' in China and the increasing enhancement of the demand of the southern market for electric heating. Except for the traditional electric heater adopting a metal wire or a single carbon fiber wire, the graphene material is also beginning to be applied to the field of electric heating plates in a large amount due to the advantages of high electric-heat conversion rate, far infrared physiotherapy effect and the like. The heating panel generally used for electric heating generally adopts an aluminum-based graphene panel.
The two problems that the existing aluminum-based graphene is difficult to solve are that firstly, due to the fact that two materials are compounded, the thermal expansion coefficients of the two materials are different, bonding is difficult, bending delamination can be generated during heating, and secondly, when the roughness is increased through a conventional aluminum surface treatment process, the voltage resistance of a product can be greatly reduced, and potential electric leakage risk after heating is caused.
Content of application
1. Technical problem to be solved
Aiming at the problems in the prior art, the application aims to provide a manufacturing method of a voltage-resistant and delamination-resistant aluminum-based graphene plate, which can increase the surface roughness, but does not influence the voltage-resistant strength, effectively avoids the delamination between an aluminum plate and graphene when the temperature changes, and effectively ensures the attractiveness and the surface roughness of the aluminum plate.
2. Technical scheme
In order to solve the above problems, the present application adopts the following technical solutions.
A manufacturing method of a voltage-resistant and delamination-resistant aluminum-based graphene board comprises the following specific steps:
a. primary treatment: performing roughness initial treatment on the aluminum plate 1, and primarily reducing the surface roughness of the aluminum base by adopting mechanical polishing;
b. electrochemical treatment: carrying out electrochemical treatment on the aluminum plate 1, wherein the electrolyte is prepared from phosphoric acid and glycerol, and the volume ratio of the phosphoric acid to the glycerol is 95-105: 0.1-0.5, taking the aluminum plate 1 as an anode material, taking insoluble metal as a cathode material, switching on a power supply, carrying out electrochemical treatment under the voltage of 8-10V and the current of 0.3-1A for 20-40 minutes, and generating a layer of oxide film on the surface of the aluminum plate 1;
c. cleaning treatment: cleaning the treated aluminum plate 1, washing the electrochemically treated aluminum plate 1 with clear water, and removing residual electrolyte and water on the aluminum plate 1 by using an ultrasonic cleaning machine;
d. bonding treatment: laminating aluminum plate 1 and 3 laminatings of graphite alkene, through prepreg 2 fixed connection between aluminum plate 1 and the graphite alkene, carry out coupling treatment between aluminum plate 1 and the prepreg 2, improve surface bonding strength.
Furthermore, the surface of the hanger is covered with the titanium alloy coating in the electrochemical treatment, so that the phenomenon that the surface of the hanger is covered on an aluminum plate to influence the appearance and the roughness due to the fact that the hanger is in contact reaction with electrolyte to generate an oxide film is effectively avoided.
Furthermore, during primary treatment, the surfaces of the aluminum plates 1 are sequentially polished by using sand paper with the mesh numbers of 80, 100, 120, 150, 180 and 220, so that the aluminum plates are provided with relatively flat surfaces before electrolysis, the electrochemical treatment is facilitated to obtain uniform surfaces, the time of the electrochemical treatment is shortened, and the cost is reduced.
Furthermore, the flame retardant rating of the prepreg 2 is UL94-V0, so that the flame resistance of the prepreg 2 in a high-temperature state is effectively ensured.
Further, carry out drying process after the preliminary treatment and carry out electrochemical treatment again, effectively avoid aluminum plate to have the drop of water to get into the electrolytic bath, can appear the pock on the aluminum plate after the electrolysis finishes, effectively guarantee aluminum plate's aesthetic property and roughness.
Furthermore, a titanate coupling agent is arranged between the prepreg 2 and the aluminum plate 1, so that the coupling effect between the prepreg 2 and the aluminum plate 1 is effectively enhanced, and the connection strength is improved.
Further, aluminum plate 1 and 3 when pressfitting of graphite alkene are at high temperature 200 ℃, high pressure 60kg/cm 2 complex forms, and under the high-pressure effect of high temperature, aluminum plate 1 and graphite alkene 3 are changeed the laminating.
3. Advantageous effects
Compare in prior art, the advantage of this application lies in:
(1) the scheme provides a new technical idea, and the electrochemical treatment method is used for increasing the surface roughness without influencing the voltage resistance strength.
(2) This scheme, application coupling effect between aluminum plate and prepreg makes the connection between aluminum plate and the prepreg inseparabler, and layering between aluminum plate and the graphite alkene when effectively avoiding temperature variation.
(3) This scheme uses the abrasive paper of different mesh numbers to polish aluminum surface when just handling, makes aluminum plate obtain comparatively level and smooth surface before the electrolysis, and the electrochemical treatment of being convenient for obtains even surface, reduces electrochemical treatment's time, reduces the cost.
(4) The surface of the hanger is covered with the titanium alloy coating in the electrochemical treatment, so that the phenomenon that the surface of the hanger is covered with the titanium alloy coating by an oxidation film generated by contact reaction with electrolyte and the aluminum plate is covered to influence the appearance and the roughness is effectively avoided.
(5) This scheme carries out drying process earlier before electrochemical treatment, effectively avoids aluminum plate to have the drop of water to get into the electrolytic bath, can appear the pockmark on the aluminum plate after the electrolysis finishes, effectively guarantees aluminum plate's aesthetic property and roughness.
Drawings
FIG. 1 is a schematic diagram of a process flow structure according to a first embodiment of the present application;
fig. 2 is a schematic perspective view of a first embodiment of the present application;
fig. 3 is a schematic process flow structure diagram according to a second embodiment of the present application.
The reference numbers in the figures illustrate:
aluminum plate 1, prepreg 2, graphene 3.
Detailed Description
The technical solution in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments, and all other embodiments obtained by those of ordinary skill in the art without any inventive work based on the embodiments in the present application belong to the protection scope of the present application.
In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The first embodiment is as follows: referring to fig. 1-2, a method for manufacturing a voltage-resistant and delamination-resistant aluminum-based graphene board includes the following steps:
a. primary treatment: the aluminum plate 1 is subjected to roughness initial treatment, and mechanical polishing is adopted to preliminarily reduce the surface roughness of the aluminum base.
During primary treatment, the surfaces of the aluminum plates 1 are sequentially polished by using sand paper with the mesh numbers of 80, 100, 120, 150, 180 and 220, so that the aluminum plates obtain smooth surfaces before electrolysis, the electrochemical treatment is convenient to obtain uniform surfaces, the time of the electrochemical treatment is shortened, and the cost is reduced.
b. Electrochemical treatment: carrying out electrochemical treatment on the aluminum plate 1, wherein the electrolyte is prepared from phosphoric acid and glycerol, and the volume ratio of the phosphoric acid to the glycerol is 95-105: 0.1-0.5, taking the aluminum plate 1 as an anode material, taking insoluble metal as a cathode material, putting the aluminum plate 1 into an electrolytic cell filled with electrolyte, switching on a power supply, carrying out electrochemical treatment under the voltage of 8-10V and the current of 0.3-1A for 20-40 minutes, and generating a layer of oxide film on the surface of the aluminum plate 1.
The surface of the hanger is covered with the titanium alloy coating in the electrochemical treatment, so that the condition that the surface of the hanger is covered with the titanium alloy coating by an oxidation film generated by contact reaction with electrolyte and the aluminum plate are influenced is effectively avoided.
c. Cleaning treatment: and cleaning the treated aluminum plate 1, washing the electrochemically treated aluminum plate 1 with clear water, and removing residual electrolyte and water on the aluminum plate 1 by using an ultrasonic cleaning machine.
d. Bonding treatment: laminating aluminum plate 1 and 3 laminatings of graphite alkene, through prepreg 2 fixed connection between aluminum plate 1 and the graphite alkene, carry out coupling treatment between aluminum plate 1 and the prepreg 2, improve surface bonding strength.
The flame retardant rating of the prepreg 2 is UL94-V0, so that the flame resistance of the prepreg 2 in a high-temperature state is effectively ensured.
And a titanate coupling agent is arranged between the prepreg 2 and the aluminum plate 1, so that the coupling effect between the prepreg 2 and the aluminum plate 1 is effectively enhanced, and the connection strength is improved.
The aluminum plate 1 and the graphene 3 are compounded at the high temperature of 200 ℃ and the high pressure of 60kg/cm ^2 when being pressed, and the aluminum plate 1 and the graphene 3 are more easily jointed under the action of high temperature and high pressure.
The second embodiment is as follows: referring to fig. 1-2, in the manufacturing method of the voltage-resistant and delamination-resistant aluminum-based graphene board, after primary treatment, drying treatment is performed, and then electrochemical treatment is performed, so that the phenomenon that water drops on the aluminum board 1 enter an electrolytic cell and pock marks occur on the aluminum board 1 after electrolysis is completed is effectively avoided, and the attractiveness and the surface roughness of the aluminum board 1 are effectively ensured.
The working principle is as follows: through prepreg 2 fixed connection between aluminum plate 1 and the graphite alkene 3, be equipped with the coupling agent between prepreg 2 and the aluminum plate 1, make joint strength stronger between prepreg 2 and the aluminum plate 1, aluminum plate 1 carries out the primary treatment on the surface before being connected with graphite alkene 3, make the surface obtain a comparatively level and smooth surface, obtain even surface after the electrochemical treatment of being convenient for, multiplicable roughness after electrochemical treatment, but do not influence withstand voltage intensity simultaneously, carry out the pressfitting with aluminum plate 1 and graphite alkene 3 after the surface treatment under the highly compressed condition of high temperature, obtain the aluminium base graphite alkene that is difficult for the layering.
This application can realize increasing surface roughness, but does not influence withstand voltage intensity simultaneously, and aluminum plate 1 and graphite alkene 3 between the layering effectively guarantee aluminum plate 1's aesthetic property and surface roughness when effectively avoiding temperature variation.
The foregoing is only a preferred embodiment of the present application; the scope of protection of the present application is not limited thereto. Any person skilled in the art should be able to cover all equivalent or changes within the technical scope of the present disclosure, which is equivalent to the technical solution and the improvement concept of the present disclosure, and the protection scope of the present disclosure.
Claims (7)
1. A manufacturing method of a voltage-resistant and delamination-resistant aluminum-based graphene board is characterized by comprising the following steps: the method comprises the following specific steps:
a. primary treatment: performing roughness initial treatment on the aluminum plate (1), and primarily reducing the surface roughness of the aluminum base by adopting mechanical polishing;
b. electrochemical treatment: carrying out electrochemical treatment on the aluminum plate (1), wherein the electrolyte is prepared from phosphoric acid and glycerol, and the volume ratio of the phosphoric acid to the glycerol is 95-105: 0.1-0.5, taking the aluminum plate (1) as an anode material, taking insoluble metal as a cathode material, switching on a power supply, carrying out electrochemical treatment under the voltage of 8-10V and the current of 0.3-1A for 20-40 minutes, and generating a layer of oxide film on the surface of the aluminum plate (1);
c. cleaning treatment: cleaning the treated aluminum plate (1), washing the electrochemically treated aluminum plate (1) with clear water, and removing residual electrolyte and water on the aluminum plate (1) by using an ultrasonic cleaning machine;
d. bonding treatment: laminating aluminum plate (1) and graphite alkene (3), through prepreg (2) fixed connection between aluminum plate (1) and the graphite alkene, carry out coupling treatment between aluminum plate (1) and prepreg (2), improve surface bonding strength.
2. The manufacturing method of the voltage-resistant and delamination-resistant aluminum-based graphene board according to claim 1, comprising the following steps: the surface of the hanger is covered with a titanium alloy coating in electrochemical treatment.
3. The manufacturing method of the voltage-resistant and delamination-resistant aluminum-based graphene board according to claim 1, comprising the following steps: in the initial treatment, the surface of the aluminum plate (1) was sequentially polished using sandpaper having 80, 100, 120, 150, 180 and 220 meshes.
4. The manufacturing method of the voltage-resistant and delamination-resistant aluminum-based graphene board according to claim 1, comprising the following steps: the flame retardant rating of the prepreg (2) is UL 94-V0.
5. The manufacturing method of the voltage-resistant and delamination-resistant aluminum-based graphene board according to claim 1, comprising the following steps: after the primary treatment, drying treatment is carried out, and then electrochemical treatment is carried out.
6. The manufacturing method of the voltage-resistant and delamination-resistant aluminum-based graphene board according to claim 1, comprising the following steps: a titanate coupling agent is arranged between the prepreg (2) and the aluminum plate (1).
7. The manufacturing method of the voltage-resistant and delamination-resistant aluminum-based graphene board according to claim 1, comprising the following steps: the aluminum plate (1) and the graphene (3) are compounded at the high temperature of 200 ℃ and the high pressure of 60kg/cm ^2 when being pressed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011228931.9A CN112339395A (en) | 2020-11-06 | 2020-11-06 | Manufacturing method of voltage-resistant and delamination-resistant aluminum-based graphene board |
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| CN202011228931.9A CN112339395A (en) | 2020-11-06 | 2020-11-06 | Manufacturing method of voltage-resistant and delamination-resistant aluminum-based graphene board |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2324106A (en) * | 1939-03-02 | 1943-07-13 | Aluminum Co Of America | Process of ornamentation |
| JPH09184093A (en) * | 1995-12-28 | 1997-07-15 | Mitsubishi Alum Co Ltd | Aluminum material and its production |
| US6143158A (en) * | 1997-04-25 | 2000-11-07 | Fuji Photo Film Co., Ltd. | Method for producing an aluminum support for a lithographic printing plate |
| JP2013049903A (en) * | 2011-08-31 | 2013-03-14 | Kobe Steel Ltd | Method for manufacturing aluminum anodic oxide coating being superior in productivity and having high voltage endurance |
| US20130236785A1 (en) * | 2010-12-22 | 2013-09-12 | Ocean's King Lighting Science & Technology Co.,Ltd | Electrode plate, preparing method therefor, super capacitor and lithium ion battery |
| CN207471652U (en) * | 2017-11-01 | 2018-06-08 | 上海悦冬实业有限公司 | A kind of graphene speed heat coating high-temp radiant panel |
| CN109338437A (en) * | 2018-12-05 | 2019-02-15 | 燕山大学 | A kind of alumina-graphite alkene composite coating and preparation method thereof |
| CN110500642A (en) * | 2019-08-26 | 2019-11-26 | 浙江互融智能科技有限公司 | Aluminium base grapheme material heating plate and preparation method thereof |
-
2020
- 2020-11-06 CN CN202011228931.9A patent/CN112339395A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2324106A (en) * | 1939-03-02 | 1943-07-13 | Aluminum Co Of America | Process of ornamentation |
| JPH09184093A (en) * | 1995-12-28 | 1997-07-15 | Mitsubishi Alum Co Ltd | Aluminum material and its production |
| US6143158A (en) * | 1997-04-25 | 2000-11-07 | Fuji Photo Film Co., Ltd. | Method for producing an aluminum support for a lithographic printing plate |
| US20130236785A1 (en) * | 2010-12-22 | 2013-09-12 | Ocean's King Lighting Science & Technology Co.,Ltd | Electrode plate, preparing method therefor, super capacitor and lithium ion battery |
| JP2013049903A (en) * | 2011-08-31 | 2013-03-14 | Kobe Steel Ltd | Method for manufacturing aluminum anodic oxide coating being superior in productivity and having high voltage endurance |
| CN207471652U (en) * | 2017-11-01 | 2018-06-08 | 上海悦冬实业有限公司 | A kind of graphene speed heat coating high-temp radiant panel |
| CN109338437A (en) * | 2018-12-05 | 2019-02-15 | 燕山大学 | A kind of alumina-graphite alkene composite coating and preparation method thereof |
| CN110500642A (en) * | 2019-08-26 | 2019-11-26 | 浙江互融智能科技有限公司 | Aluminium base grapheme material heating plate and preparation method thereof |
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