CN111677220A - Wallboard and graphene heating sheet thereof - Google Patents
Wallboard and graphene heating sheet thereof Download PDFInfo
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- CN111677220A CN111677220A CN202010643747.4A CN202010643747A CN111677220A CN 111677220 A CN111677220 A CN 111677220A CN 202010643747 A CN202010643747 A CN 202010643747A CN 111677220 A CN111677220 A CN 111677220A
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- graphene
- graphene heating
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0875—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/02—Specially adapted covering, lining or flooring elements not otherwise provided for for accommodating service installations or utility lines, e.g. heating conduits, electrical lines, lighting devices or service outlets
- E04F2290/023—Specially adapted covering, lining or flooring elements not otherwise provided for for accommodating service installations or utility lines, e.g. heating conduits, electrical lines, lighting devices or service outlets for heating
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- Architecture (AREA)
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- Structural Engineering (AREA)
- Central Heating Systems (AREA)
Abstract
The invention discloses a wall panel which comprises an outer wall panel, a graphene heating sheet, a reflecting layer and a heat insulation layer, wherein the outer wall panel is installed on a wall surface, the graphene heating sheet is arranged on one side surface, close to the wall surface, of the outer wall panel, the reflecting layer is arranged on one side surface, close to the wall surface, of the graphene heating sheet, and the heat insulation layer is arranged on one side surface, close to the wall surface, of the reflecting layer. The graphene heating sheet comprises a base material and a graphene heating film coated on one side or two sides of the base material, and the base material comprises an aramid fiber layer, a PET film or a PI film. The graphene heating sheet is bendable, long in service life, low in cost and high in heating speed; the wall panel has the heating function while playing a decorative effect, and is convenient to maintain and replace.
Description
Technical Field
The invention belongs to the technical field of graphene, and particularly relates to a wall panel and a graphene heating sheet thereof.
Background
The wall protecting board is also called dado, wall board, wall protecting decorative board is the new type material for decorating wall developed in recent years, and it is made of wood as base material.
In the prior art, heating technology is widely applied, and in cold regions, coal and wood are generally used for heating, but the coal and the wood waste resources and pollute the environment. Some of the panels are heated by electricity, and generally heating wires are laid in the panels or walls, however, if the wires laid in the panels or walls are faulty during use, it is difficult to find out which part is faulty, and secondly, even if one board is faulty, it is difficult to replace the board, which makes it extremely difficult for users.
Therefore, there is a need to provide a panel that is compatible with heating technology to solve the above problems.
Disclosure of Invention
The invention aims to provide a graphene heating sheet which is bendable, long in service life, low in cost and high in heating speed.
Another object of the present invention is to provide a wall panel, which includes a graphene heating sheet, wherein the graphene heating sheet is bendable, has a long service life, a low cost and a fast heating speed, and has a heating function while playing a decorative effect, and is convenient to maintain and replace.
In order to achieve the purpose, the invention provides a graphene heating sheet which comprises a base material and a graphene heating film coated on one surface or two surfaces of the base material, wherein the base material comprises an aramid fiber layer, a PET film or a PI film. Preferably, the aramid fiber layer is selected for the substrate, the PET film is widely applied in the field of traditional heating films, but the PET film and the PI film have the defects of easy aging, easy falling, folding intolerance, short service life and the like, the aramid fiber layer and the graphene heating film are bonded more tightly and are not easy to age and fall, the aramid fiber layer is folding tolerant, and the service life is longer. Specifically, the aramid fiber layer can be folded into a roll film shape and can be cut into any size or any shape. In addition, the graphene heating sheet disclosed by the invention also has the following advantages: the weight is light, and the composite material can be compounded with other materials; hydrophobicity, stamping, acid and alkali resistance; high efficiency, energy saving, fast heating, and second heating under certain power density, i.e. 1s heating up to several hundred deg.C, such as 300 deg.C.
Furthermore, the substrate and the graphene heating film thereon form a heating unit, the graphene heating sheet further comprises an upper insulating layer and a lower insulating layer, and at least one heating unit is arranged between the upper insulating layer and the lower insulating layer at intervals.
Furthermore, a copper conductor is connected to the graphene heating film and electrically connected to a power line, and the power line and the copper conductor are used for supplying power to the graphene heating film to heat.
Further, the copper conductor is a printed copper layer.
Further, the graphene heating film comprises a tubular carbon material and a sheet-shaped graphene material, and the tubular carbon material and the sheet-shaped graphene material are uniformly distributed. The uniformly distributed flaky graphene materials are at least horizontally connected in an electric mode, the tubular carbon materials are uniformly distributed among the flaky graphene materials, and each layer of flaky graphene material is connected at least in the thickness direction, so that electric energy can be instantly conducted in the three-dimensional direction, namely each position of the graphene heating film, and the heating is uniform; moreover, under the condition of electrification, the graphene heating film can immediately excite the resonance effect among carbon atoms, generate phonon oscillation and immediately release far infrared rays, electric energy is instantly converted into heat energy, and the heated substance can be rapidly heated under the action of atomic resonance and far infrared rays; in addition, the tubular carbon material is lower in cost than the sheet graphene material, and the graphene heating film doped with the tubular carbon material is lower in cost and higher in heating speed.
Further, the mass ratio of the tubular carbon material to the sheet graphene material is (1-5): 1-5, the length of the tubular carbon material is 100-200 um, and the D of the tubular carbon material is50Is 10-30 um, the graphene material is single-layer graphene.
Further, the graphene heating film further comprises a dispersing agent and a binder, wherein the dispersing agent is CMC, and the binder is SBR.
The present invention also provides a panel, comprising: the external wall panel is arranged on a wall surface; according to the graphene heating sheet, the graphene heating sheet is arranged on one side surface, close to the wall surface, of the external wall panel; the reflection layer is arranged on one side surface, close to the wall surface, of the graphene heating sheet; and the heat preservation layer is arranged on one side surface, close to the wall surface, of the reflection layer.
Furthermore, the edges of at least two opposite sides of the external wall panel extend out of the edge of the wall surface, and the graphene heating sheet, the reflecting layer and the heat insulation layer are all located between the two edges.
Further, the reflecting layer is an aluminum foil, an aluminum-plated steel plate or a floor heating reflecting film; the heat-insulating layer is made of wood boards, polyurethane foam, polystyrene boards, phenolic foam, aerogel felt, glass wool, rock wool, expanded perlite and micro-nano heat-insulating or foaming cement.
The invention has the beneficial effects that: the invention provides a graphene heating sheet which is bendable, long in service life, low in cost and high in heating speed; the wall panel has the heating function while playing a decorative effect, and is convenient to maintain and replace.
Drawings
FIG. 1 is a schematic cross-sectional view of a panel of the present invention.
Fig. 2 is a schematic cross-sectional view of the graphene heating sheet according to the present invention.
Fig. 3 is a schematic structural diagram of the graphene heating sheet of the present invention.
Wherein, 1-graphene heating sheet; 2-a reflective layer; 3, insulating layer; 4-external wall panel; 41-edge; 42-a mounting portion; 5, a wall surface; 10-a graphene heating film; 20-aramid fiber layer; a 30-copper conductor; 40-lower insulating layer; 50-an upper insulating layer; 60-power line.
Detailed Description
The "ranges" disclosed herein are in the form of lower and upper limits. There may be one or more lower limits, and one or more upper limits, respectively. The given range is defined by the selection of a lower limit and an upper limit. The selected lower and upper limits define the boundaries of the particular range. All ranges that can be defined in this manner are inclusive and combinable, i.e., any lower limit can be combined with any upper limit to form a range. For example, ranges of 60-120 and 80-110 are listed for particular parameters, with the understanding that ranges of 60-110 and 80-120 are also contemplated. Furthermore, if the minimum range values 1 and 2 are listed, and if the maximum range values 3, 4, and 5 are listed, the following ranges are all contemplated: 1-3, 1-4, 1-5, 2-3, 2-4 and 2-5. In the present invention, all embodiments and preferred embodiments mentioned herein may be combined with each other to form a new technical solution, if not specifically stated.
In the present invention, all the technical features mentioned herein and preferred features may be combined with each other to form a new technical solution, if not specifically stated. In the present invention, all the steps mentioned herein may be performed sequentially or randomly, if not specifically stated, but preferably sequentially.
Example 1:
preparing a graphene heating sheet 1:
adding a binder SBR and a dispersant CMC into a solvent, stirring, uniformly dispersing, and then adding a tubular carbon material and a sheet graphene material, wherein the mass ratio of the tubular carbon material to the sheet graphene material is 1: 5, stirring to obtain graphene slurry; wherein, the length of tubular carbon material is 100 ~ 200um, the D of tubular carbon material5010-30 um, wherein the graphene material is single-layer graphene; adhesive: dispersing agent: the weight ratio of the tubular carbon material to the sheet graphene material is 3: 1: 100, respectively; coating the graphene slurry on two surfaces of an aramid fiber layer 20 in a coating manner, wherein the coating amount of each layer is 0.2ml/cm2(ii) a Drying the solvent, and forming the graphene heating film 10 by the graphene slurry; providing a copper conductor 30 and a power line 60, wherein the copper conductor 30 is a printed copper layer, is electrically connected with the graphene heating film 10 and is electrically connected with the power line 60, and supplies power to the graphene heating film 10 through the power line 60 and the copper conductor 30 for heating; and providing an upper insulating layer 50 and a lower insulating layer 40, forming a heating unit by the aramid fiber layer 20 and the graphene heating film 10 thereon, and arranging at least one heating unit between the upper insulating layer 50 and the lower insulating layer 40 at intervals, thereby preparing the graphene heating sheet 1. Of course, in other embodiments, the heating unit may be a single unit, and the whole unit is laid on the upper insulatorBetween the insulating layer 50 and the lower insulating layer 40.
The construction of the panel is detailed below:
the wall panel comprises an external wall panel 4, a graphene heating sheet 1, a reflecting layer 2 and a heat preservation layer 3. Specifically, the external wall panel 4 is formed in a plate shape and is installed on a wall surface, and the edges of at least two opposite sides of the external wall panel extend out of the edge 41 toward the wall surface, it is understood that the edge 41 can be formed on two opposite sides or can be formed on the periphery, the edge 41 is provided with an installation part 42 which is convenient for installation or connection with an adjacent wall panel, the illustrated installation part 42 is a U-shaped structure and is formed at the free end of the edge 41, but the installation part 42 of the present invention is not limited thereto, and other installation parts 42 suitable for wall panels can be applied to the present invention, and will not be described herein again. Graphite alkene generates heat piece 1, reflection stratum 2 and heat preservation 3 and all is located between each border 41 and carries out the lamination according to the order, specifically, graphite alkene generates heat piece 1 and locates the bottom, and reflection stratum 2 is located graphite alkene generates heat on piece 1, and graphite alkene generates heat on piece 1 is close to the side of wall promptly, and heat preservation 3 is located on reflection stratum 2, and reflection stratum 2 is close to on the side of wall promptly.
Wherein, the reflecting layer 2 is an aluminum foil, an aluminum-plated steel plate or a floor heating reflecting film; the heat-insulating layer 3 is made of wood boards, polyurethane foam, polystyrene boards, phenolic foam, aerogel felt, glass wool, rock wool, expanded perlite and micro-nano heat-insulating or foaming cement.
Example 2
The graphene heating sheet 1 and the wall panel are prepared according to the embodiment 1, and the only difference is that: the mass ratio of the tubular carbon material to the sheet graphene material is 2: 3; adhesive: dispersing agent: the weight ratio of the tubular carbon material to the sheet graphene material is 5: 3: 100, respectively; the coating amount of each layer of graphene slurry is 1ml/cm2。
Example 3
The graphene heating sheet 1 and the wall panel are prepared according to the embodiment 1, and the only difference is that: the mass ratio of the tubular carbon material to the sheet graphene material is 5: 1; adhesive: dispersing agent: the weight ratio of the tubular carbon material to the sheet graphene material is 4: 2: 100, respectively; the coating amount of each layer of graphene slurry is 0.4ml/cm2。
Example 4
The graphene heating sheet 1 and the wall panel are prepared according to the embodiment 1, and the only difference is that: the mass ratio of the tubular carbon material to the sheet graphene material is 3: 2; adhesive: dispersing agent: the weight ratio of the tubular carbon material to the sheet graphene material is 3: 3: 100, respectively; the coating amount of each layer of graphene slurry is 0.7ml/cm2。
Comparative example 1
The graphene heating sheet 1 and the wall panel are prepared according to the embodiment 1, and the only difference is that: only the sheet graphene material is added, and the tubular carbon material is not added.
Comparative example 2
The graphene heating sheet 1 and the wall panel are prepared according to the embodiment 1, and the only difference is that: only the tubular carbon material is added, and the sheet graphene material is not added.
Comparative example 3
The graphene heating sheet 1 and the wall panel are prepared according to the embodiment 1, and the only difference is that: the graphene heating sheet 1 is a graphene electric heating film of a PTC-H type which is purchased from the market and has a tsunami brand.
The dimensions of the graphene heat generating sheet 1 of each of examples 1 to 4 and comparative examples 1 to 3 were set as follows: the width of the cloth is 600mm, and the length is 1600 mm. And the far infrared emissivity, the infrared emission wavelength and the electric-thermal conversion efficiency of each graphene heating sheet 1 were measured under the conditions of a working voltage of 0 to 1000V and a working temperature of <400 ℃, and the results are as follows.
| Item | Far infrared emissivity | Infrared emission wavelength | Electric heat conversion efficiency |
| Example 1 | 99.8％ | 2～20um | >99.90％ |
| Example 2 | 99.7％ | 2～20um | >99.90％ |
| Example 3 | 99.9％ | 2～20um | >99.90％ |
| Example 4 | 99.8％ | 2～20um | >99.90％ |
| Comparative example 1 | 97.7％ | 5～300um | 96.1％ |
| Comparative example 2 | 97.1％ | 5～300um | 95.7％ |
| Comparative example 3 | 96.2％ | 10～400um | 95.2％ |
From the above, the graphene heating sheet 1 of the present invention has excellent far infrared emission performance, and when the infrared emission wavelength is 2-20 um, the electrothermal conversion efficiency reaches more than 99.90%. The far infrared wavelength band of 2-20 um has become a safe, effective and widely applied physiotherapy band. Wherein, the infrared emission wavelength of the wave band of 4-14 um can heat the object most effectively.
When the graphene heating sheet 1 is electrified, a resonance effect is generated among carbon atoms of the tubular carbon material, the oscillation electromagnetic wave with the wavelength of 2-20 um, namely phonon oscillation generates heat energy, so that electric energy is converted into heat energy, and the tubular carbon material has high crystallinity and few defects, so that phonon scattering can be prevented, phonon energy is transmitted in a far infrared mode, no internal phonon scattering loss energy exists, the electric heat conversion efficiency is high, and an external object can be rapidly heated.
The graphene heating film 10 comprises a tubular carbon material and a sheet graphene material, wherein the tubular carbon material and the sheet graphene material are uniformly distributed. The uniformly distributed sheet graphene materials are quickly and electrically connected in the horizontal direction, the tubular carbon materials are uniformly distributed among the sheet graphene materials, and each layer of sheet graphene material is connected at least in the thickness direction, so that electric energy can be instantly conducted in the three-dimensional direction, namely each position of the graphene heating film 10, and the heating is uniform; moreover, under the condition of electrification, the graphene heating film 10 can immediately excite the resonance effect among carbon atoms, generate phonon oscillation and immediately release far infrared rays, electric energy is instantly converted into heat energy, and the heated substance can be rapidly heated under the action of atomic resonance and far infrared rays; in addition, the tubular carbon material has lower cost than the sheet graphene material, and the graphene heating film 10 doped with the tubular carbon material has lower cost and higher heating speed.
The base material of the present invention includes an aramid fiber layer, a PET film, or a PI film. Preferably, the aramid fiber layer is selected for the substrate, the PET film is widely applied in the field of traditional heating films, but the PET film and the PI film have the defects of easy aging, easy falling, folding intolerance, short service life and the like, the aramid fiber layer and the graphene heating film are bonded more tightly and are not easy to age and fall, the aramid fiber layer is folding tolerant, and the service life is longer. Specifically, the aramid fiber layer can be folded into a roll film shape and can be cut into any size or any shape. In addition, the graphene heating sheet 1 of the present invention further has the following advantages: the weight is light, and the composite material can be compounded with other materials; hydrophobicity, stamping, acid and alkali resistance; high efficiency, energy saving, fast heating, and second heating under certain power density, i.e. 1s heating up to several hundred deg.C, such as 300 deg.C. The graphene heating sheet 1 is arranged in the wall panel, so that the thickness of the wall panel is not increased, the attractiveness of the wall panel is not affected, and the wall panel has a decoration effect and a heating function; in addition, the dado is convenient for install and change, if the graphite alkene in one of them dado generates heat piece 1 and has damaged, only change this dado can, be convenient for maintain the change.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.
Claims (10)
1. The utility model provides a graphite alkene piece that generates heat, its characterized in that, graphite alkene piece that generates heat includes a substrate and coat in the graphite alkene heating film of substrate one side or two sides, the substrate includes aramid fiber layer, PET membrane or PI membrane.
2. The graphene heating sheet according to claim 1, wherein the substrate and the graphene heating film thereon form a heating unit, the graphene heating sheet further includes an upper insulating layer and a lower insulating layer, and at least one heating unit is disposed between the upper insulating layer and the lower insulating layer at intervals.
3. The graphene heating sheet according to claim 1, wherein a copper conductor is connected to the graphene heating film, the copper conductor is electrically connected to a power line, and the power line and the copper conductor are used to supply power to the graphene heating film for heating.
4. The graphene heat generating sheet according to claim 3, wherein the copper conductor is a printed copper layer.
5. The graphene heating sheet according to claim 1, wherein the graphene heating film includes a tubular carbon material and a sheet-like graphene material, and the tubular carbon material and the sheet-like graphene material are uniformly distributed.
6. The graphene heating sheet according to claim 5, wherein the mass ratio of the tubular carbon material to the sheet graphene material is (1-5): (1-5), the length of the tubular carbon material is 100-200 um, and the D of the tubular carbon material is50Is 10-30 um, the graphene material is single-layer graphene.
7. The graphene exothermic sheet according to claim 1, wherein the graphene exothermic film further comprises a dispersant and a binder, the dispersant is CMC, and the binder is SBR.
8. A panel, comprising:
the external wall panel is arranged on a wall surface;
the graphene heating sheet according to any one of claims 1 to 7, wherein the graphene heating sheet is disposed on one side surface of the external wall panel close to the wall surface;
the reflection layer is arranged on one side surface, close to the wall surface, of the graphene heating sheet; and
and the heat preservation layer is arranged on one side surface of the reflection layer, which is close to the wall surface.
9. The panel of claim 8, wherein edges of at least two opposite sides of the external wall panel extend out of edges towards the wall surface, and the graphene heating sheet, the reflective layer and the thermal insulation layer are located between the edges.
10. The panel of claim 8, wherein the reflective layer is an aluminum foil, an aluminum-plated steel plate, or a floor heating reflective film; the heat-insulating layer is made of wood boards, polyurethane foam, polystyrene boards, phenolic foam, aerogel felt, glass wool, rock wool, expanded perlite and micro-nano heat-insulating or foaming cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010643747.4A CN111677220A (en) | 2020-07-06 | 2020-07-06 | Wallboard and graphene heating sheet thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010643747.4A CN111677220A (en) | 2020-07-06 | 2020-07-06 | Wallboard and graphene heating sheet thereof |
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| CN111677220A true CN111677220A (en) | 2020-09-18 |
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| CN202010643747.4A Pending CN111677220A (en) | 2020-07-06 | 2020-07-06 | Wallboard and graphene heating sheet thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112252515A (en) * | 2020-10-23 | 2021-01-22 | 常州金海防静电地板有限公司 | Graphene heating wallboard and preparation method thereof |
| CN114654830A (en) * | 2021-04-01 | 2022-06-24 | 上海涂固安高科技有限公司 | Far infrared graphene thermal radiation constant-temperature composite aluminum plate and preparation method thereof |
-
2020
- 2020-07-06 CN CN202010643747.4A patent/CN111677220A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112252515A (en) * | 2020-10-23 | 2021-01-22 | 常州金海防静电地板有限公司 | Graphene heating wallboard and preparation method thereof |
| CN112252515B (en) * | 2020-10-23 | 2021-07-30 | 安徽韩华建材科技股份有限公司 | Graphene heating wallboard and preparation method thereof |
| CN114654830A (en) * | 2021-04-01 | 2022-06-24 | 上海涂固安高科技有限公司 | Far infrared graphene thermal radiation constant-temperature composite aluminum plate and preparation method thereof |
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