CN112674413A - Superfine fiber electrical heating gauze mask - Google Patents
Superfine fiber electrical heating gauze mask Download PDFInfo
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- CN112674413A CN112674413A CN202110033913.3A CN202110033913A CN112674413A CN 112674413 A CN112674413 A CN 112674413A CN 202110033913 A CN202110033913 A CN 202110033913A CN 112674413 A CN112674413 A CN 112674413A
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Abstract
The invention belongs to the field of superfine fibers, and particularly relates to an electric heating mask made of superfine fibers. The mask has an electric heating capacity to heat air passing through the mask; the mask body is of a sheet composite layer structure and comprises an upper surface layer, a lower surface layer and a middle layer positioned between the upper surface layer and the lower surface layer; the middle layer comprises a superfine fiber electric heating functional layer for heating air flowing through the mask; and the edges of two opposite ends of the superfine fiber electric heating functional layer are respectively fixed with an electrode, and the two electrodes are connected with a power supply. After the power source is connected, the microfiber may generate heat due to an electrothermal effect. The super-high ratio of utilizing superfine fiber is big, has improved the heating efficiency to the air to superfine fiber itself has the filter capacity, and this makes this superfine fiber heating gauze mask possess off-line electrical heating, cold-proof, filtered air's function, has frivolous, the gas permeability is good simultaneously, advantage that heating efficiency is high, overcomes prior art's not enough.
Description
Technical Field
The invention belongs to the field of superfine fibers, and particularly relates to an electric heating mask made of superfine fibers.
Background
Haze pollution, virus protection and the like, so that the effect of the mask in daily life is increasingly prominent. However, when the mask is used under the cold weather condition, the problem of water accumulation of the inner layer is easy to occur. The existing solution is to add a hydrophobic layer on the inner layer, however, the problem of water vapor condensation can not be effectively solved by only relying on the hydrophobic layer. The root cause of water accumulation in the mask under the cold weather condition is that a large amount of water vapor is contained in the air exhaled by a person, and the water vapor is condensed into water drops when meeting cold air and is condensed in the mask.
In addition, some respiratory patients with tracheitis, chronic rhinitis, etc. experience discomfort and aggravation of the condition when cold air is inhaled. In cold weather, the patients with respiratory diseases still cannot inhale warm air even if wearing the mask. Therefore, the development of the electric heating mask has important significance for patients with respiratory diseases. In the prior art, the heating purpose can be achieved by adding an electric heating wire into the mask. However, in the prior art, the safety and the flexibility of the mask are adversely affected by the addition of the electric heating wires, and the specific surface area of a network formed by the electric heating wires is not large enough, so that the heating efficiency is low.
Disclosure of Invention
In view of the above technical problems, the present invention provides an electrical heating mask made of ultra-fine fibers, which has electrical heating capability to heat air flowing through the mask; the heating capacity of the mask is provided by the electric heating superfine fibers, and the superfine fibers have ultrahigh specific surface area, so that the heating efficiency of flowing air is greatly improved, and the problems of water accumulation on the inner side of the mask and cold incoming air in a cold environment are solved.
The invention is realized by the following technical scheme:
an electrical heating microfiber respirator, said respirator having electrical heating capability to heat air passing through the respirator;
the mask body of the mask is of a sheet composite layer structure and comprises an upper surface layer, a lower surface layer and a middle layer positioned between the upper surface layer and the lower surface layer;
the middle layer comprises a superfine fiber electric heating functional layer for heating air flowing through the mask; and the edges of two opposite ends (the upper end and the lower end or the left end and the right end) of the superfine fiber electric heating functional layer are respectively fixed with an electrode, and the two electrodes are connected with a power supply.
Furthermore, the thickness of the electric heating functional layer of the superfine fiber is 2-500 mu m, the pore diameter is 1-30 mu m, and the porosity is 60-99.99%;
the superfine fiber electric heating functional layer comprises superfine fibers with an electric heating effect, and the diameter of the superfine fibers is 0.02-20 mu m; the superfine fiber with the electrothermal effect comprises three realization modes:
composite conductive superfine fiber: the superfine fiber consists of a polymer matrix material and a conductive filling material;
intrinsic conductive ultrafine fibers: the superfine fiber has charge transmission capacity;
the composite conductive superfine fiber is mixed with the intrinsic conductive superfine fiber.
Further, the polymer matrix adopted in the composite conductive superfine fiber is a material with a superfine fiber structure which is easily obtained by methods such as extrusion, stretching, electrostatic spinning and the like, and the method specifically comprises the following steps: any one or more of polystyrene, polylactic acid, polyacrylic acid, cellulose acetate, poly (N-isopropylacrylamide), polyacrylonitrile, polyethyleneimine, polymethyl methacrylate, poly (diphenylamine), chitosan, cellulose, polyaniline, ethylene, vinyl acetate, polyvinyl acetate, polyacrylamide, polyethylene oxide, poly-O-toluidine, polyvinylpyrrolidone, polyether sulfone, acetoxypropyl-cellulose, carboxymethyl cellulose, tetra [4- (allyloxy) phenyl ] porphyrin and polyvinylidene fluoride is mixed or copolymerized;
the conductive filling material adopted in the composite conductive superfine fiber is mainly easy to be combined with superfine fiber into micro-nano conductive particles, and specifically comprises the following components: carbon materials (carbon black, graphite, graphene, fullerene and carbon nano tube), metals (gold, silver, copper, lead and iron), metal oxides (tin oxide, titanium oxide, zinc oxide and ferroferric oxide) and any one or more of structural conductive polymers.
Furthermore, the intrinsic conductive superfine fiber has a pi-electron conjugated structure, and can be easily obtained into a material with a superfine fiber structure by methods such as extrusion, stretching, electrostatic spinning and the like, and the method specifically comprises the following steps: any one or more of polyacetylene, polypyrrole, polyphenyl ether, polyaniline, polythiophene, polypyridine, polyfuran and polyphenylene sulfide is mixed or copolymerized.
Furthermore, the upper surface layer and the lower surface layer are made of non-woven fabrics, the fiber diameter of the non-woven fabrics is 10-1000 microns, and the porosity is 50% -90%; the thickness of the upper and lower surface layers is 0.02-1 mm.
Furthermore, the two electrodes are connected with an external power supply through a wire, the external power supply is a direct current power supply, the voltage of the direct current power supply is 1.5-36V, and the direct current power supply comprises various types of batteries or mobile power supplies.
In one step, the superfine fiber electric heating functional layer is used for heating air flowing through the mask and filtering the air; or
The middle layer also includes a filtration layer. Preferably, the filtering layer adopts a melt-blown cotton filtering layer.
Further, under the flow rate of 85L/min, the filtering efficiency of the superfine fiber electric heating mask on salt particles with the particle size of 0.03-2.5 mu m is 30-99.99%, and the pressure resistance is 1-250 Pa.
The mask comprises a mask body and also comprises an ear fixing unit, such as ear belts and other fixing objects. The ear fixing unit adopts the prior art, and is not described in detail in the invention.
The technical principle of the invention is as follows: the mask provided by the invention comprises a superfine fiber electric heating functional layer, wherein the superfine fiber electric heating functional layer comprises conductive superfine fibers with current thermal effect, and the superfine fibers have the characteristics of small fiber diameter, small aperture, high porosity, adjustable structure and the like, can effectively intercept fine particles and provide rich transport pore paths for air flow, and can endow the material with the characteristics of high filtering efficiency and low air resistance; in the invention, the edges of two opposite ends of the superfine fiber electric heating functional layer are respectively fixed with an electrode, the electrodes can be connected with an external power supply through a lead, after the electrodes are connected with the power supply, the conductive superfine fiber with the current heat effect can generate heat due to the electric heating effect, the superfine fiber has larger area, the air can be heated more uniformly, and the superfine fiber has filtering capacity, so that the superfine fiber heating mask has the functions of off-line electric heating, heat preservation and air filtering, and simultaneously has the advantages of light weight, good air permeability and high heating efficiency, and can overcome the defects of the prior art.
The invention has the beneficial technical effects that:
the mask adopts the superfine fiber with the electrothermal effect, and the heating efficiency of air flowing through the mask is greatly improved through the high specific surface area of the superfine fiber; the problem that water is easy to form inside the mask under the cold weather condition is solved by a heating method; compared with a metal electric heating wire, the superfine fiber is high in heating efficiency, soft and comfortable, and improves the comfort of the existing electric heating mask.
Drawings
Fig. 1 is a schematic structural view of a mask body according to a first embodiment of the present invention;
fig. 2 is a schematic structural view of a mask body according to a second embodiment of the present invention;
reference numerals: 1. an upper surface layer; 2. a lower surface layer; 3. a superfine fiber electric heating functional layer; 4. an electrode; 5. a direct current power supply; 6. melt-blown cotton filter layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details.
Aiming at the technical problems that the safety and the flexibility of the mask are adversely affected, the heating efficiency is low and the like because an electric heating wire is added into the traditional electric heating mask for heating, the invention provides the superfine fiber electric heating mask which has the electric heating capacity and is used for heating the air flowing through the mask; the invention provides a superfine fiber protective mask with electric heating capability, which is in a composite layer structure, wherein the upper surface layer and the lower surface layer are non-woven fabrics, and the middle layer is an electric heating superfine fiber layer and a filter layer, or the electric heating superfine fiber layer is used as the filter layer at the same time. The non-woven fabrics of the upper surface layer and the lower surface layer provide high strength for the middle layer to protect the middle layer on one hand, and provide effective filtration on the other hand. The electrically heated microfiber of the middle layer provides electrical heating capability to heat air passing through the microfiber, and the filter layer provides air filtering effectiveness; or the electrically heated microfiber layer provides air filtration effectiveness by virtue of its own structure and characteristics.
The specific embodiment is as follows:
example 1
As shown in figure 1, the mask body is of a sheet composite structure, an upper surface layer 1 and a lower surface layer 2 both adopt non-woven fabrics, a middle layer is a superfine fiber electric heating functional layer 3 for heating air flowing through the mask, and the superfine fiber layer 3 is used as a filter layer. The thickness of the nonwoven fabric of the upper and lower surface layers was 0.02mm, the fiber diameter in the nonwoven fabric was 10 μm, and the porosity was 50%.
The superfine fiber electric heating functional layer comprises superfine fibers with an electric heating effect, the diameter of the superfine fibers is 200-1000 nm, and the porosity of the superfine fiber electric heating functional layer is 60 +/-10%.
The superfine fiber with the electrothermal effect is realized by a composite conductive superfine fiber which consists of a polymer matrix material and a conductive filling material; the polymer matrix material adopted in the composite conductive superfine fiber is ethylene-vinyl acetate copolymer (EVA), and the conductive filling material is a carbon nano tube; during preparation, the carbon nano tube is directly added into the EVA solution, and the EVA/carbon nano tube composite conductive superfine fiber is prepared by an electrostatic spinning method.
The edges of two opposite ends of the superfine fiber electric heating functional layer are respectively fixed with an electrode 4, and the two electrodes are connected with a power supply 5; preferably, the electrode is a metal wire electrode, and the power supply 5 is a 12V direct current power supply.
The mask in the embodiment is tested at the flow rate of 85L/min, the filtering efficiency of the mask on salt particles with the particle size of 0.03-2.5 mu m is more than or equal to 90%, and the piezoresistance is less than or equal to 130 Pa. The mask has the capability of continuously heating under the condition of switching on the power supply.
Example 2
As shown in figure 2, the superfine fiber protective mask with the electric heating capacity is of a sheet composite structure, an upper surface layer 1 and a lower surface layer 2 both adopt non-woven fabrics, and a middle layer is a superfine fiber electric heating functional layer 3 and a melt-blown cotton filter layer 6 which are used for heating air flowing through the mask. The thickness of the nonwoven fabric of the upper and lower surface layers was 0.02mm, the fiber diameter in the nonwoven fabric was 10 μm, and the porosity was 50%.
The superfine fiber electric heating functional layer 3 comprises superfine fibers with an electric heating effect, the diameter of the superfine fibers is 1-20 mu m, and the porosity of the superfine fiber electric heating functional layer is 90% +/-10%. The filtering efficiency of the melt-blown cotton filtering layer on salt particles with the particle size of 0.03-2.5 mu m is more than or equal to 90 percent under a flow test of 85L/min, and the piezoresistance is less than or equal to 100 Pa;
the superfine fiber with the electrothermal effect is realized by a composite conductive superfine fiber which consists of a polymer matrix material and a conductive filling material; the composite conductive superfine fiber adopts polyvinylidene fluoride (PVDF) as the polymer matrix material and carbon black as the conductive filling material. During preparation, the carbon black micro-nano particles are directly added into the PVDF melt and mixed uniformly, and the PVDF/carbon black composite conductive superfine fiber is obtained by a screw extrusion method.
The edges of two opposite ends of the superfine fiber electric heating functional layer are respectively fixed with an electrode 4, and the two electrodes are connected with a power supply 5; preferably, the electrode is a metal wire electrode, and the power supply 5 is a 12V direct current power supply.
The mask in the embodiment is tested at the flow rate of 85L/min, the filtering efficiency of the mask on salt particles with the particle size of 0.03-2.5 mu m is more than or equal to 95%, and the piezoresistance is less than or equal to 130 Pa. The mask has the capability of continuously heating under the condition of switching on the power supply.
Claims (8)
1. An ultrafine fiber electric heating mask is characterized in that the mask has electric heating capacity to heat air passing through the mask;
the mask body of the mask is of a sheet composite layer structure and comprises an upper surface layer, a lower surface layer and a middle layer positioned between the upper surface layer and the lower surface layer;
the middle layer comprises a superfine fiber electric heating functional layer for heating air flowing through the mask; the edges of two opposite ends of the superfine fiber electric heating functional layer are respectively fixed with an electrode, and the two electrodes fixedly connected with the two ends of the superfine fiber electric heating functional layer are connected with a power supply.
2. The electric heating mask with the superfine fibers according to claim 1, wherein the electric heating functional layer of the superfine fibers contains superfine fibers with an electric heating effect, and the diameter of the superfine fibers is 0.02-20 μm; the superfine fiber is composite conductive superfine fiber, intrinsic conductive superfine fiber or the mixture of composite conductive superfine fiber and intrinsic conductive superfine fiber;
the composite conductive superfine fiber consists of a polymer matrix material and a conductive filling material; the intrinsic conductive superfine fiber means that the superfine fiber has charge transmission capability;
the thickness of the electrothermal functional layer of the superfine fiber is 2-500 mu m, the pore diameter is 1-30 mu m, and the porosity is 60-99.99%.
3. The electrically heated mask of claim 2, wherein the polymeric matrix material used in the composite conductive microfiber comprises: any one or more of polystyrene, polylactic acid, polyacrylic acid, cellulose acetate, poly (N-isopropylacrylamide), polyacrylonitrile, polyethyleneimine, polymethyl methacrylate, poly (diphenylamine), chitosan, cellulose, polyaniline, ethylene, vinyl acetate, polyvinyl acetate, polyacrylamide, polyethylene oxide, poly-O-toluidine, polyvinylpyrrolidone, polyethersulfone, acetoxypropyl-cellulose, carboxymethyl cellulose, tetrakis [4- (allyloxy) phenyl ] porphyrin and polyvinylidene fluoride;
the conductive filling material adopted in the composite conductive superfine fiber comprises: any one or more of carbon-based materials, metals, metal oxides and structural conductive polymers.
4. The electrically heated mask of claim 2 wherein said intrinsically conductive microfibers have a pi-electron conjugated structure comprising: any one or more of polyacetylene, polypyrrole, polyphenyl ether, polyaniline, polythiophene, polypyridine, polyfuran and polyphenylene sulfide.
5. The electrical heating mask with superfine fibers according to claim 1, wherein the upper surface layer and the lower surface layer are made of non-woven fabrics, the diameter of the fibers in the non-woven fabrics is 10-1000 μm, and the porosity is 50-90%; the thickness of the upper surface layer and the lower surface layer is 0.02-1 mm.
6. The electrical heating mask with superfine fibers according to claim 1, wherein the two electrodes are connected to an external power source through wires, the external power source is a direct current power source, and the voltage is 1.5-36V.
7. The electrically heated mask of claim 1, wherein the mask is made of a material selected from the group consisting of silicon, aluminum, silicon,
the superfine fiber electric heating functional layer is used for heating air flowing through the mask and is also used for filtering the air; or
The middle layer also includes a filtration layer.
8. The electrical heating mask made of ultrafine fibers according to claim 1, wherein the electrical heating mask made of ultrafine fibers has a filtration efficiency of 30 to 99.99% and a pressure resistance of 1 to 250Pa for salt particles having a particle size of 0.03 to 2.5 μm at a flow rate of 85L/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110033913.3A CN112674413A (en) | 2021-01-11 | 2021-01-11 | Superfine fiber electrical heating gauze mask |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110033913.3A CN112674413A (en) | 2021-01-11 | 2021-01-11 | Superfine fiber electrical heating gauze mask |
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| CN112674413A true CN112674413A (en) | 2021-04-20 |
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| CN202110033913.3A Pending CN112674413A (en) | 2021-01-11 | 2021-01-11 | Superfine fiber electrical heating gauze mask |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101026909A (en) * | 2006-02-17 | 2007-08-29 | 杨章民 | Flexible electric-heating assembly |
| CN202190779U (en) * | 2011-01-28 | 2012-04-18 | 黄豊仁 | Heating and warming mask |
| CN203040762U (en) * | 2012-12-28 | 2013-07-10 | 东华大学 | Electric heating mask |
| CN103687104A (en) * | 2012-09-14 | 2014-03-26 | 滕繁 | Preparation method for novel electro-thermal film heating body |
| CN107046741A (en) * | 2017-05-19 | 2017-08-15 | 连云港磐石复合材料有限公司 | A kind of flexible sheet carbon fiber exothermic part |
| CN109395465A (en) * | 2017-08-18 | 2019-03-01 | 海安科皓纺织有限公司 | A kind of normal temperature air filtering material |
| CN109429389A (en) * | 2017-09-05 | 2019-03-05 | 明信医疗株式会社 | The manufacturing method of planar heat producing body |
| CN111616443A (en) * | 2020-06-08 | 2020-09-04 | 山东宽原新材料科技有限公司 | Mask lamination composite filter core material structure and mask |
-
2021
- 2021-01-11 CN CN202110033913.3A patent/CN112674413A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101026909A (en) * | 2006-02-17 | 2007-08-29 | 杨章民 | Flexible electric-heating assembly |
| CN202190779U (en) * | 2011-01-28 | 2012-04-18 | 黄豊仁 | Heating and warming mask |
| CN103687104A (en) * | 2012-09-14 | 2014-03-26 | 滕繁 | Preparation method for novel electro-thermal film heating body |
| CN203040762U (en) * | 2012-12-28 | 2013-07-10 | 东华大学 | Electric heating mask |
| CN107046741A (en) * | 2017-05-19 | 2017-08-15 | 连云港磐石复合材料有限公司 | A kind of flexible sheet carbon fiber exothermic part |
| CN109395465A (en) * | 2017-08-18 | 2019-03-01 | 海安科皓纺织有限公司 | A kind of normal temperature air filtering material |
| CN109429389A (en) * | 2017-09-05 | 2019-03-05 | 明信医疗株式会社 | The manufacturing method of planar heat producing body |
| CN111616443A (en) * | 2020-06-08 | 2020-09-04 | 山东宽原新材料科技有限公司 | Mask lamination composite filter core material structure and mask |
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