CN214632575U - Circulated quick phase transition subsides of bringing down a fever based on graphite alkene heat conduction membrane - Google Patents
Circulated quick phase transition subsides of bringing down a fever based on graphite alkene heat conduction membrane Download PDFInfo
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- CN214632575U CN214632575U CN202022267759.XU CN202022267759U CN214632575U CN 214632575 U CN214632575 U CN 214632575U CN 202022267759 U CN202022267759 U CN 202022267759U CN 214632575 U CN214632575 U CN 214632575U
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Abstract
The utility model relates to an annealing technique provides a circulated quick phase transition subsides of bringing down a fever based on graphite alkene heat conduction membrane, include: the graphene heat conduction film layer (1) is made of a graphene heat conduction film; a phase change layer (2) made of a phase change material; the graphene heat conduction film layer (1) is located below the phase change layer (2). The cooling paste of the utility model adopts the high heat storage phase change layer, has long action time, does not need to be frequently replaced and can be recycled; the graphene heat conduction film is adopted, heat can be conducted quickly, continuous and stable cooling is achieved, and the heat fading effect is good.
Description
Technical Field
The utility model relates to an defervesce technique, more specifically relates to a circulated quick phase transition subsides of bringing down a fever based on graphite alkene heat conduction membrane.
Background
Fever is a very common symptom in children. In most cases, fever is a protective response of the body against invading pathogens and is a process in which the body is initiating the immune system to fight infection. The reasonable antipyretic method can effectively help the organism to realize the self-regulation function.
The existing cooling antipyretic has large side effect and is mostly taken orally, the first-pass effect of the antipyretic is obvious, and the antipyretic is not beneficial to children. The defervescence paste is a new technology for emergently cooling low fever developed in recent years, liquid water is locked by a heat absorption medium macromolecule gel layer, and the liquid water is converted into water vapor after absorbing the heat of the forehead to take away the heat, thereby achieving the defervescence and cooling effect.
However, the gel cooling patch has obvious disadvantages in the using process:
(1) the effect is not obvious: the core component of the gel cooling patch is volatile liquid gel, and the heat transfer efficiency between the gel and the skin is not high.
(2) The action time is limited: the gel cooling paste generally has effective time of only 6-10 hours, and is ineffective after being used once.
(3) It is easy to cause skin allergy: if the gel antipyretic patch has irritant touch and smell, the gel antipyretic patch can cause skin sensitivity and discomfort of young babies, and skin allergy is seriously caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a quick phase transition subsides of bringing down a fever of circulation based on graphite alkene heat conduction membrane. The utility model discloses an defervesce principle does: the graphene heat conducting film conducts heat quickly, heat energy is transferred to the phase change material of the phase change layer, the phase change temperature of the phase change material is achieved, the material continuously absorbs heat, and the purpose of quickly cooling is achieved. When the absorbed heat is saturated, the cooling paste is taken down, the cooling paste is placed in an environment below the phase change temperature, the stored heat is released, and the cooling paste after the heat is released can be reused, so that the purpose of recycling is achieved.
The utility model discloses a quick phase transition subsides of bringing down a fever of circulation based on graphite alkene heat conduction membrane, include: the graphene heat conduction film layer is made of a graphene heat conduction film; a phase change layer made of a phase change material; the graphene heat conduction film layer is located below the phase change layer.
Optionally, a part of the graphene thermal conductive film layer is located below the phase change layer, and another part of the graphene thermal conductive film layer is embedded in the phase change layer.
Optionally, the graphene thermal conductive film layer includes a graphene thermal conductive film exterior and a graphene thermal conductive film embedded portion, wherein the graphene thermal conductive film exterior is located below the phase change layer, and the graphene thermal conductive film embedded portion is embedded into the phase change layer.
Optionally, the phase change material is a solid-liquid phase change energy storage material.
Optionally, the phase change material is one or a mixture of organic phase change materials, inorganic salts and organic salts.
Optionally, the phase change material comprises an organic phase change material and silicate powder, the organic phase change material is one or a mixture of several of paraffin and derivatives thereof, lauric acid, capric acid, fatty acid, mint and acrylate, and the silicate powder is one or a mixture of several of pottery clay, talcum powder, mica powder and montmorillonite.
Optionally, the phase change material is a mixture of an organic phase change material and an inorganic material, the organic phase change material is a mixture of paraffin and derivatives thereof, one or more of lauric acid, capric acid, fatty acid, mint and n-pentane stearate, and the silicate powder is argil.
Optionally, the phase change layer is an organic phase change material and an organic salt composition, the phase change material is one or a mixture of polyethylene glycol, polyglycerol, polyacrylic acid and polymethacrylic acid, and the organic salt is one or a mixture of sodium acetate trihydrate and sodium sulfate decahydrate.
Optionally, the cooling patch further comprises: and the sealing layer is used for wrapping the phase change layer.
Optionally, the sealing layer (3) is a liquid sealing film.
The technical effects of the utility model include:
1) high efficiency: the graphene heat conducting film conducts heat quickly, realizes continuous and stable cooling and has a good defervescence effect;
2) long-acting: the high heat storage phase change layer has the action time of more than 4 hours, does not need to be replaced frequently and can be recycled;
3) comfort: the phase-change temperature of the fever patch is close to the body temperature, and discomfort such as hair standing, shivering and the like cannot be caused when the fever patch is used;
4) no allergy: the graphene heat-conducting film in the part contacting with the human body is made of all-carbon materials, and is soft in film surface, smooth in touch, free of stimulation and non-allergic.
Drawings
In order that the invention may be more readily understood, it will be described in more detail with reference to specific embodiments thereof that are illustrated in the accompanying drawings. These drawings depict only typical embodiments of the invention and are not therefore to be considered to limit the scope of the invention.
Fig. 1 is a schematic view of an embodiment of a graphene thermal conductive film circulation rapid phase change cooling patch.
Fig. 2 is a cross-sectional view of another embodiment of a graphene thermal conductive film cycling rapid phase change cooling patch.
Fig. 3 is a schematic view illustrating the graphene thermal conductive film embedded in the embodiment shown in fig. 2.
Fig. 4 is a test diagram of the phase change defervescence patch effect of the graphene heat conducting film.
Reference numerals
The heat-conducting film comprises a 1-graphene heat-conducting film, a 1-1 graphene heat-conducting film outer part, a 1-2 graphene heat-conducting film embedded part, a 2-phase change layer phase change material and a 3-sealing layer.
Detailed Description
Embodiments of the present invention will be described below with reference to the accompanying drawings so that those skilled in the art can better understand the present invention and can carry out the present invention, but the illustrated embodiments are not intended to limit the present invention, and technical features in the following embodiments and embodiments can be combined with each other without conflict, wherein like parts are denoted by like reference numerals.
First embodiment
As shown in fig. 1, the utility model discloses a quick subsides of bringing down a fever of repeatedly usable based on graphite alkene heat conduction membrane, including graphite alkene heat conduction rete 1, phase transition layer 2 and sealing layer 3. The graphene heat conduction film layer 1 is used for conducting heat through the graphene heat conduction film and is used for contacting the skin. And a phase change layer 2 is laid on the graphene heat conduction film layer 1. The phase change layer 2 is made of non-toxic and high-enthalpy phase change materials and is a core part of the cooling paste for playing a role. The sealing layer 3 is used for wrapping the phase change layer 2, and the sealing layer 3 adopts a liquid seal film to prevent the liquid phase change material from overflowing.
In one embodiment, the thickness of the graphene thermal conductive film layer 1 is 0.05-0.5 mm. The graphene heat-conducting film is a novel nano material with strong heat-conducting property. Compared with the traditional artificial graphite heat-conducting film (the heat conductivity coefficient is 151W/mK), the graphene heat-conducting film has the heat conductivity coefficient as high as 1700W/mK, and becomes a novel carbon material which is researched and developed by various domestic electronic product production enterprises.
In one example, a mesh cloth is disposed below the graphene thermal conductive film layer 1 (below in the drawing direction in fig. 1, i.e., on the side contacting the skin), and the graphene thermal conductive film layer 1 is supported on the mesh cloth to prevent the film from being damaged during use. The length of the film of the graphene heat-conducting film layer 1 is equivalent to that of the defervescence patch. The width design of complete membrane is 2 ~ 4 times of the width of subsides of bringing down a fever, and one of them part of graphite alkene heat conduction rete 1 equals with phase transition layer 2's width, strengthens phase transition layer heat conduction efficiency. The phase change layer extends out to be attached to the outer surface of the phase change layer and is contacted with the skin; the remaining part is arranged in the phase change layer to enhance the heat conduction efficiency of the phase change layer. The other part extends out of the phase change layer 2 and is attached to the outer surface of the phase change layer.
The phase change material package of phase change layer 2 and graphite alkene heat conduction rete 1 can independent design, also can the laminating be in the same place. One side and the skin contact of graphite alkene heat conduction membrane, the opposite side is embedded into the phase transition layer, and as heat transmission's bridge, the more complete connection skin of graphite alkene heat conduction membrane and phase transition layer can reach better effect of moving back a fever.
Second embodiment
In another embodiment, as shown in fig. 2 to 3, unlike the first embodiment, a part of the graphene thermal conductive film layer 1 is located below the phase change layer 2, and another part is embedded in the phase change layer 2, so that the area of the thermal conductive medium is increased. The graphene heat conduction film layer 1 comprises an outer portion 1-1 of the graphene heat conduction film and an embedded portion 1-2 of the graphene heat conduction film. Outside 1-1 of graphite alkene heat conduction membrane is located phase change layer 2 below, and graphite alkene heat conduction membrane embedded part 1-2 is located phase change layer 2 above, and phase change layer 2 still has above graphite alkene heat conduction membrane embedded part 1-2, that is to say, graphite alkene heat conduction membrane embedded part 1-2 imbeds in phase change layer 2. So increased phase change layer 2 and graphene heat conduction rete's area of contact, also be the heat-conducting medium area increase, strengthened the effect of bringing down a fever. Optionally, the graphene thermal conductive film layer (1) is a complete film.
In one embodiment, the phase change layer 2 is made of a phase change energy storage material, which is a material capable of storing energy by using a large amount of heat energy absorbed (released) when the state of the phase change layer changes, and is a novel energy-saving material capable of naturally sensing the environmental temperature change and automatically adjusting the environmental temperature of a closed area through the phase change state to achieve the purposes of temperature adjustment and constant temperature. The phase change material can be organic phase change material, inorganic salt, organic salt or mixture thereof.
Solid-liquid phase change energy storage materials are preferably adopted in the cooling patch, and the requirements are as follows:
the phase transition temperature is close to the body temperature of a human body by 30-40 ℃;
has sufficiently large latent heat of phase change and thermal conductivity;
(3) less expansion or contraction during phase change;
(4) the reversibility of phase change is good;
(5) no toxicity, no corrosiveness, no degradation and no peculiar smell;
(6) the raw materials for preparation are cheap and easy to obtain.
Preferably, the phase change layer 2 is made of a solid-liquid phase change energy storage material, and is 100-120 mm long, 40-60 mm wide and 2-6 mm thick.
Preferably, the phase change temperature of the phase change material is 30-38 ℃.
Preferably, the phase change material is a mixture of an organic phase change material and an inorganic material.
In one embodiment, the phase change layer 2 comprises an organic phase change material and a silicate frit. The weight percentage of the phase-change material is 30-60 parts, the silicate powder is 10-40 parts, and the water is 10-50 parts. Preferably, the weight percentage of the phase-change material is 60 parts, the silicate powder is 30 parts, and the water is 10 parts. The organic phase change material is paraffin and one or a mixture of several of derivatives thereof, lauric acid, decanoic acid, fatty acid, mint and acrylic ester. The silicate powder is one or a mixture of more of argil, talcum powder, mica powder and montmorillonite.
More preferably, the phase change layer 2 includes an organic phase change material and silicate powder. The weight percentage of the phase-change material is 60 parts, the silicate powder is 30 parts, and the water is 10 parts. The organic phase change material is paraffin and derivatives thereof, and one or a mixture of more of lauric acid, capric acid, fatty acid, mint and n-pentane stearate. The silicate powder is argil. The phase change temperature of the phase change material is 30 ℃.
In one embodiment, the phase change layer is an organic phase change material and an organic salt composition. The weight percentage of the organic phase change material is 20-60 parts of organic phase change material and 10-40 parts of organic salt. The phase change material is one or a mixture of polyethylene glycol, polyglycerol, polyacrylic acid and polymethacrylic acid. The organic salt is one or a uniform mixture of sodium acetate trihydrate and sodium sulfate decahydrate.
The phase change temperature of the phase change material is 20-40 ℃. Above the phase transition temperature, the phase change material is a very viscous paste-like substance in which hydrated salts are bound to a polymer. Below the phase transition temperature, it is a hard and brittle substance.
In one embodiment, the phase change layer 2 is an organic phase change material and an organic salt composition. The weight percentage of the organic phase change material is 60 portions and the organic salt is 40 portions. The phase change material is one or a mixture of polyethylene glycol, polyglycerol, polyacrylic acid and polymethacrylic acid. The organic salt is one or a uniform mixture of sodium acetate trihydrate and sodium sulfate decahydrate.
The phase change temperature of the phase change material is 35 ℃. Above the phase transition temperature, the phase change material is a very viscous paste-like substance in which hydrated salts are bound to polymers; below the phase transition temperature, it is a hard and brittle substance.
The utility model discloses an subsides of bringing down a fever has passed through the experiment. Selecting 2 copper sheets with the thickness of 120 multiplied by 40 multiplied by 5mm at the room temperature of 25 ℃, and placing the copper sheets in a thermostat at the temperature of 40 ℃ for 60 min; respectively selecting 1 piece of defervescence paste (specification: 120 multiplied by 40mm, embodiment one) with the mass of about 25g (equivalent gel or phase change material) for testing, and recording the temperature change of the copper piece for 0-12 min; repeat 5 times, average and result is shown in figure 4. Fig. 4 (a) shows a thermal infrared imager display of the copper sheet surface for the first test of 30 s. Fig. 4 (B) is a graph showing the drop curve of the test temperature, wherein (a) is a certain brand of gel cooling patch, and (B) is the phase-change cooling patch of the graphene heat-conducting film of the present invention.
As can be seen from fig. 4 (a), at 30s, the surface temperature of the copper sheet of the graphene heat-conducting film phase-change defervescence patch is 36.8 ℃, which is lower than 38.0 ℃ of the copper sheet of the common gel defervescence patch, and the defervescence of the graphene heat-conducting film phase-change defervescence patch is more uniform as can be seen from the color of the development diagram. Therefore, the phase-change defervescence patch of the graphene heat-conducting film has a defervescence effect obviously superior to that of a gel defervescence patch. As shown in fig. 4 (B), the temperature drop curve of the graphene thermal conductive film phase change cooling patch is significantly faster than that of the gel cooling patch, and the excellent cooling performance of the graphene thermal conductive film phase change cooling patch is further verified.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the ordinary changes and substitutions performed by those skilled in the art within the technical scope of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a but quick phase transition subsides of bringing down a fever of circulated based on graphite alkene heat conduction membrane which characterized in that includes:
the graphene heat conduction film layer (1) is made of a graphene heat conduction film;
a phase change layer (2) made of a phase change material;
the graphene heat conduction film layer (1) is located below the phase change layer (2).
2. The cooling patch as claimed in claim 1,
one part of the graphene heat conduction film layer (1) is located below the phase change layer (2), and the other part of the graphene heat conduction film layer is embedded into the phase change layer.
3. The cooling patch as claimed in claim 2,
the graphene heat conduction film layer (1) comprises a graphene heat conduction film outer portion (1-1) and a graphene heat conduction film embedded portion (1-2), wherein the graphene heat conduction film outer portion (1-1) is located below the phase change layer (2), and the graphene heat conduction film embedded portion (1-2) is embedded into the phase change layer (2).
4. The cooling patch as claimed in claim 1,
the phase change material is a solid-liquid phase change energy storage material.
5. The cooling patch as claimed in claim 1, further comprising:
the sealing layer (3), the sealing layer (3) is used for wrapping the phase change layer (2).
6. The cooling patch as claimed in claim 5,
the sealing layer (3) is a liquid sealing film.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022267759.XU CN214632575U (en) | 2020-10-13 | 2020-10-13 | Circulated quick phase transition subsides of bringing down a fever based on graphite alkene heat conduction membrane |
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| CN202022267759.XU CN214632575U (en) | 2020-10-13 | 2020-10-13 | Circulated quick phase transition subsides of bringing down a fever based on graphite alkene heat conduction membrane |
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| CN214632575U true CN214632575U (en) | 2021-11-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114404132A (en) * | 2022-01-25 | 2022-04-29 | 广东必达医疗科技有限公司 | Recyclable fever cooling patch |
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2020
- 2020-10-13 CN CN202022267759.XU patent/CN214632575U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114404132A (en) * | 2022-01-25 | 2022-04-29 | 广东必达医疗科技有限公司 | Recyclable fever cooling patch |
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