CN109275211B - Planar fabric-based heating sheet and use thereof - Google Patents
Planar fabric-based heating sheet and use thereof Download PDFInfo
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- CN109275211B CN109275211B CN201811062639.7A CN201811062639A CN109275211B CN 109275211 B CN109275211 B CN 109275211B CN 201811062639 A CN201811062639 A CN 201811062639A CN 109275211 B CN109275211 B CN 109275211B
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- heating sheet
- conductive carbon
- carbon slurry
- layer
- heating
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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
- H05B3/10—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/145—Carbon only, e.g. carbon black, graphite
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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
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
Abstract
The invention provides a planar cloth-based heating sheet and application thereof, wherein conductive carbon paste at least comprises the following components: conductive carbon black, a water-based binder, a dispersant, a wetting agent and water. The conductive carbon paste can be coated on a heating base layer to be used as a conductive layer to manufacture a heating sheet. The heating sheet may be used to prepare a pad for contacting a human body. The heating plate generates heat uniformly and is resistant to bending.
Description
Technical Field
The invention relates to a planar cloth-based heating plate and application thereof.
Background
The heating sheet is a sheet-shaped electrical element which specially converts electric energy into heat energy. The heating piece commonly used in the massage chair is generally a carbon fiber and resistance wire type heating piece, the heating piece controls the resistance of the heating piece by adjusting the length of a heating element, so that the required power is achieved, the heating element is sewn on a cloth or other types of base materials through a sewing machine and fixed into a specific shape, and the traditional type heating piece has the defects of no bending resistance, uneven heating and the like in the using process and leaves potential safety hazards for products.
Disclosure of Invention
In view of the above-mentioned disadvantages of the prior art, an object of the present invention is to provide a planar fabric-based heating sheet and its use, which are used to solve the problems of the prior art that the heating sheet is not resistant to bending and generates heat unevenly.
In order to achieve the above objects and other related objects, the present invention provides an electrically conductive carbon paste, which comprises at least the following components in parts by weight,
preferably, the aqueous binder is selected from a mixture of acrylates and acrylonitrile or polyurethane.
Further, the mass ratio of the acrylic ester to the acrylonitrile is 1 to 10.
Further, the aqueous binder of acrylic resin and acrylonitrile mixed therein may be obtained from basf ander LN 579S ap.
Preferably, the dispersant is selected from sodium lauryl sulfate.
Preferably, the wetting agent is selected from acetylenic diols.
More preferably, the conductive carbon paste further comprises the following components in parts by weight:
0.2-1 part of graphene;
0.5-1 part of ammonia water;
0.5 to 1 portion of PVP (polyvinylpyrrolidone).
The ammonia water is an aqueous solution containing 25-28% of ammonia.
Another aspect of the present invention provides the use of the above conductive carbon paste for preparing a heating mat.
In another aspect of the present invention, there is provided a method of preparing: the conductive carbon paste can be obtained by uniformly mixing the components.
In another aspect, the invention provides a planar fabric-based heating sheet, which includes a base layer and a carbon slurry layer, wherein the base layer is woven by metal wires and cotton threads, and the carbon slurry layer is formed by coating the conductive carbon slurry on the base layer and drying the conductive carbon slurry.
Further, both sides of the base layer are coated with conductive carbon paste.
Further, the thickness of the carbon slurry layer is 0.2-1 mm.
Furthermore, the metal wire is a copper wire, an aluminum wire or an alloy metal wire.
Further, the diameter of the metal wire is 0.1-1 mm.
Furthermore, the metal wires and the cotton wires are woven in a criss-cross mode.
Further, the metal wires and the cotton threads are formed only in a longitudinal direction or a transverse direction separately.
Furthermore, the distance between two adjacent strands of metal wires is 10-1200 mm.
Further, each strand of metal wire comprises 1 to 100 filaments.
Furthermore, the power of the heating plate per square centimeter is 300-400W/m2。
Further, the drying is carried out at 100-135 ℃ for 20-40 minutes.
Further, the heating plate also comprises an insulating layer, and the insulating layer is coated on two sides of the heating plate.
And uniformly coating the carbon slurry layer on two surfaces of the base layer and completely covering the base layer.
The insulating layer is uniformly coated on the surface of the carbon slurry layer and completely covers the base layer.
More preferably, the insulating layer is made of any one or more of PET, TPU, or EVA.
More preferably, the heating plate further comprises a lead and a temperature controller, the lead is connected with the metal wire, and the temperature controller is connected with the metal wire through the lead.
In another aspect, the invention provides a use of the heating sheet for preparing a heating pad for contacting with a human body.
Furthermore, the pad contacting with the human body refers to a pad contacting with the human body on the fitness equipment or the physiotherapy equipment.
As described above, the planar fabric-based heating sheet and the conductive carbon paste according to the present invention have the following advantageous effects:
1. the temperature of the heating surface is very uniform; the resistance in unit area is adjustable;
2. the structure is soft, and the electrode cannot fall off; good toughness and rub resistance.
Drawings
FIG. 1 shows a heat patch prepared in example 1
FIG. 2 shows a wire-bonded heater chip of example 1
1. Base layer
2. Carbon slurry layer
3. Insulating layer
4. Temperature controller
5. Conducting wire
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Example 1
The conductive carbon paste can be obtained by mixing the components.
The conductive carbon paste is used for preparing the heating sheet. The heating sheet is made of cotton thread and pure copper wire, then the conductive carbon paste is evenly coated on the heating sheet, the heating sheet is dried at the temperature of 122 ℃ for 28min, the thickness of the carbon paste layer is 0.5mm, and then an insulating layer (TPU) is coated on the heating sheet. As shown in fig. 1, 1 is a base layer, 2 is a conductive carbon paste layer, and 3 is an insulating layer. (as in FIG. 1)
The diameter of each copper wire is 0.1mm, each 100 copper wires form one strand, the distance between every two adjacent strands of copper wires is 100mm, the copper wires are criss-cross with cotton threads, the distance between the cotton threads is 100mm, and the heating sheets are woven.
Meanwhile, metal sheets are formed around the copper wires and then connected through the wires. Referring to fig. 2, the thermostat 4 is also connected to the heating plate through a wire 5. The power per square meter was determined to be 365w.
Example 2
The conductive carbon paste can be obtained by mixing the components.
The heating sheet is prepared by adopting the conductive carbon paste. Wherein the heating sheet is made of cotton thread and pure copper wire, then the conductive carbon paste is evenly coated, the conductive carbon paste is dried at 120 ℃ for 30min, the thickness of the carbon paste layer is 0.5mm, and then an insulating layer (TPU) is coated.
The diameter of each copper wire is 0.3mm, each 75 copper wires form one strand, the distance between every two adjacent strands of copper wires is 200mm, the two strands of copper wires are criss-cross with cotton threads, the distance between the cotton threads is 300mm, and the heating sheets are woven.
Meanwhile, metal sheets are formed around the copper wires, and then the metal sheets are connected through conducting wires. The temperature controller is also connected with the heating plate through a lead. The power per square meter was determined to be 382w.
Example 3
The conductive carbon paste can be obtained by mixing the components.
The conductive carbon paste is used for preparing the heating sheet. Wherein the heating plate is made of cotton thread and pure copper wire, and then the conductive carbon paste is uniformly coated. Drying at 100 deg.C for 40min to obtain a carbon slurry layer with thickness of 0.6mm, and coating with insulating layer (EVA).
The diameter of each copper wire is 0.6mm, each 50 copper wires form one strand, the distance between every two adjacent strands of copper wires is 100mm, the two strands of copper wires are criss-cross with cotton threads, the distance between the cotton threads is 100mm, and the heating sheets are woven.
Meanwhile, metal sheets are formed around the copper wires, and then the metal sheets are connected through conducting wires. The temperature controller is also connected with the heating plate through a lead. The power per square meter was determined to be 395w.
Example 4
The conductive carbon paste can be obtained by mixing the components.
The heating sheet is prepared by adopting the conductive carbon paste. Wherein the heating sheet is made of cotton thread and pure copper wire, then the conductive carbon paste is evenly coated, and the conductive carbon paste is dried at 132 ℃ for 20min, and the thickness of the carbon paste layer is 0.5mm. And then coated with an insulating layer (PET).
The diameter of each copper wire is 0.1mm, each 50 copper wires form one strand, the distance between every two adjacent strands of copper wires is 600mm, the two strands of copper wires are criss-cross with cotton threads, the distance between the cotton threads is 400mm, and the heating sheets are woven.
Meanwhile, metal sheets are formed around the copper wires and then connected through the wires. The temperature controller is also connected with the heating plate through a lead. The power per square meter was determined to be 315w.
Example 5
The test was performed on 4 points in the heat patch of example 2. Example 2 is a rectangle of 120mmX370mm area, with 4 dots at equal spacing, and the results are shown in Table 1.
TABLE 1 test results of temperature rise of heating sheet in example 2
It can be seen that the difference between the temperatures at 4 points at the same time is small, and it can be considered that the heating pad is uniformly heated.
Example 6
The heat patch of example 2 was tested and the results are shown in Table 2.
TABLE 2 test results
Therefore, the product has the composite requirements of appearance and flame retardant property and better bending resistance. And an aqueous solvent is adopted to meet the environmental protection requirement.
The above examples are intended to illustrate the disclosed embodiments of the invention and are not to be construed as limiting the invention. In addition, various modifications of the methods and compositions set forth herein, as well as variations of the methods and compositions of the present invention, will be apparent to those skilled in the art without departing from the scope and spirit of the invention. While the invention has been specifically described in connection with various specific preferred embodiments thereof, it should be understood that the invention should not be unduly limited to such specific embodiments. Indeed, various modifications of the above-described embodiments which are obvious to those skilled in the art to which the invention pertains are intended to be covered by the scope of the present invention.
Claims (6)
1. A planar fabric-based heating sheet comprises a base layer and a carbon slurry layer, wherein the base layer is formed by weaving metal wires and cotton threads, and the carbon slurry layer is formed by coating conductive carbon slurry on the base layer and drying the conductive carbon slurry;
the conductive carbon slurry at least comprises the following components in parts by weight:
2. a flat panel based heating sheet as claimed in claim 1, wherein said aqueous binder is selected from a mixture of acrylate and acrylonitrile or polyurethane.
3. A flat panel based heating sheet as claimed in claim 1, wherein said dispersing agent is selected from sodium lauryl sulfate.
4. A planar fabric-based heating sheet as claimed in any one of claims 1 to 3, wherein: the heating plate also comprises any one or more of the following technical characteristics:
(1) Coating conductive carbon slurry on both sides of the base layer;
(2) The metal wire is a copper wire, an aluminum wire or an alloy metal wire;
(3) The diameter of the metal wire is 0.1-1 mm;
(4) The metal wires and the cotton threads are woven in a criss-cross mode;
(5) The metal wires and the cotton threads are only independently formed in the longitudinal direction or the transverse direction;
(6) The distance between two adjacent strands of metal wires is 10-1200 mm;
(7) The power of the heating plate per square centimeter is 300-400W/m2；
(8) The drying is carried out at 100-135 ℃ for 20-40 minutes.
5. A planar fabric-based heating sheet as defined in claim 4, wherein: the heating plate further comprises an insulating layer, and the insulating layer is coated on the two sides of the heating plate.
6. Use of the heating sheet according to any one of claims 1 to 5 for producing a heat-generating patch for contact with a human body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811062639.7A CN109275211B (en) | 2018-09-12 | 2018-09-12 | Planar fabric-based heating sheet and use thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811062639.7A CN109275211B (en) | 2018-09-12 | 2018-09-12 | Planar fabric-based heating sheet and use thereof |
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| CN109275211A CN109275211A (en) | 2019-01-25 |
| CN109275211B true CN109275211B (en) | 2022-11-01 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2806709A2 (en) * | 2013-05-24 | 2014-11-26 | Benecke-Kaliko AG | Electrically conducting surface |
| WO2015062879A1 (en) * | 2013-10-29 | 2015-05-07 | Vitrulan Technical Textiles Gmbh | Heating means and an electrically-conductive heating element |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307403B (en) * | 2011-09-02 | 2013-04-24 | 西安盖沃热能科技有限公司 | Self-limiting temperature electrothermal membrane of PTC high-molecular conductive fiber and preparation method thereof |
| CN202652574U (en) * | 2012-06-07 | 2013-01-02 | 贵州彩阳电暖科技有限公司 | Far infrared carbon fiber electric heating wire |
| CN103834235A (en) * | 2014-02-20 | 2014-06-04 | 江苏格美高科技发展有限公司 | Conductive graphene carbon slurry printing ink and preparation method thereof |
| KR101652987B1 (en) * | 2015-05-15 | 2016-09-12 | 대유씨티 주식회사 | Manufacturing method of heating seat and apparatus for producing thereof |
| CN205545998U (en) * | 2016-02-01 | 2016-08-31 | 马占英 | Electrothermal film |
| CN105803814A (en) * | 2016-04-20 | 2016-07-27 | 常州中超石墨烯电力科技有限公司 | Graphene-based high-strength conductive cloth and preparation method thereof |
| CN206333390U (en) * | 2016-12-30 | 2017-07-18 | 苏州尼克司建材有限公司 | Heat sheet devices and heating vest |
| CN108305704A (en) * | 2018-03-05 | 2018-07-20 | 北京鑫碳科技有限责任公司 | A kind of graphene-based High-conductivity carbon slurry and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2806709A2 (en) * | 2013-05-24 | 2014-11-26 | Benecke-Kaliko AG | Electrically conducting surface |
| WO2015062879A1 (en) * | 2013-10-29 | 2015-05-07 | Vitrulan Technical Textiles Gmbh | Heating means and an electrically-conductive heating element |
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| CN109275211A (en) | 2019-01-25 |
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Address after: 1st Floor, No. 2166, Nanxun Avenue, Nanxun Economic Development Zone, Huzhou City, Zhejiang Province, 313030 Applicant after: Huzhou Ai Rongda New Material Technology Co.,Ltd. Address before: 3rd Floor, Building 6, No. 368, Heshan Road, High-tech Zone, Suzhou City, Jiangsu Province, 215010 Applicant before: SUZHOU AIXINRONG NEW MATERIAL TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20220926 Address after: 313009 Nanxun Avenue, Nanxun Economic Development Zone, Huzhou, Zhejiang 2166 Applicant after: Zhejiang Rongtai health appliance Co.,Ltd. Address before: 1st Floor, No. 2166, Nanxun Avenue, Nanxun Economic Development Zone, Huzhou City, Zhejiang Province, 313030 Applicant before: Huzhou Ai Rongda New Material Technology Co.,Ltd. |
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