CN115895604A - Heat storage phase-change material and heating neckerchief applying same - Google Patents
Heat storage phase-change material and heating neckerchief applying same Download PDFInfo
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- CN115895604A CN115895604A CN202211635539.5A CN202211635539A CN115895604A CN 115895604 A CN115895604 A CN 115895604A CN 202211635539 A CN202211635539 A CN 202211635539A CN 115895604 A CN115895604 A CN 115895604A
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- heat storage
- change material
- storage phase
- phase change
- acid triglyceride
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- 239000012782 phase change material Substances 0.000 title claims abstract description 58
- 238000005338 heat storage Methods 0.000 title claims abstract description 55
- 238000010438 heat treatment Methods 0.000 title claims abstract description 40
- UFTFJSFQGQCHQW-UHFFFAOYSA-N triformin Chemical compound O=COCC(OC=O)COC=O UFTFJSFQGQCHQW-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 13
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229920001296 polysiloxane Polymers 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 13
- 230000008018 melting Effects 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000000741 silica gel Substances 0.000 claims description 6
- 229910002027 silica gel Inorganic materials 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 abstract description 10
- 235000017281 sodium acetate Nutrition 0.000 abstract description 10
- 239000001632 sodium acetate Substances 0.000 abstract description 10
- 239000007787 solid Substances 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 7
- 238000009835 boiling Methods 0.000 abstract description 4
- 238000003860 storage Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000243 solution Substances 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 9
- 238000002360 preparation method Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N dimethylmethane Natural products CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000001294 propane Substances 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Thermotherapy And Cooling Therapy Devices (AREA)
Abstract
The invention discloses a heat storage phase-change material and a heating neckerchief applying the same, and relates to the technical field of phase-change heating materials. The thermal storage phase-change material comprises the following components: 1,2, 3-octadecanoic acid triglyceride, 1,2, 3-hexadecanoic acid triglyceride, 1,2, 3-tetradecanoic acid triglyceride and nano titanium dioxide. The heat storage phase-change material is solid at normal temperature, has no corrosiveness, can be suitable for heat storage in heating modes such as water boiling, microwave and the like, is converted into liquid after being heated, and can continuously release heat for more than 1.5 hours; compared with the existing supersaturated solution sodium acetate heat storage phase change material, the heat storage phase change material is more environment-friendly and safer.
Description
Technical Field
The invention relates to the technical field of phase change heating materials, in particular to a heat storage phase change material and a heating neckerchief using the same.
Background
The heat storage phase change material is a phenomenon that heat is released in the process of utilizing the physical and chemical phase change, dissolution or precipitation of the phase change material. For example, the commonly used supersaturated solution sodium acetate of the phase-change heating material for heat storage is adopted, a metal sheet in the supersaturated solution sodium acetate is broken, friction is applied to eliminate the supersaturated solution and an unstable stable state, so that the solution forms tiny crystal nuclei on the surface of the metal sheet and rapidly grows, the supersaturated solute in the solution is consumed, and heat is released in the process until the solution enters the stable saturated state.
The supersaturated solution sodium acetate is used as a phase-change heating material, and the following problems exist: after heat release, the supersaturated solution sodium acetate is solid, can be changed back to liquid state only by boiling and heating with water, and then is used again, which cannot be suitable for changing back to liquid state in a microwave heating mode; secondly, the supersaturated solution sodium acetate has metal corrosivity and is liquid at normal temperature, and leakage easily causes pollution.
In addition, in the process of manufacturing the heating neckerchief by using the supersaturated solution sodium acetate as the phase-change material, the supersaturated solution sodium acetate is usually added into the enclosure in an injection mode, but the mode cannot be applied to the heat storage phase-change material which is solid at normal temperature.
Therefore, a new heat storage phase change material replacing supersaturated solution sodium acetate needs to be developed, and a neckerchief structure suitable for the application is developed.
Disclosure of Invention
To solve the above technical problems, the present invention is achieved by the following technical solutions.
The heat storage phase change material comprises the following components: 1,2, 3-octadecanoic acid triglyceride, 1,2, 3-hexadecanoic acid triglyceride, 1,2, 3-tetradecanoic acid triglyceride and nano titanium dioxide.
Preferably, the heat storage phase change material comprises the following components in percentage by mass:
preferably, the heat storage phase change material comprises the following components in percentage by mass:
preferably, the heat storage phase change material comprises the following components in percentage by mass:
preferably, the heat storage phase change material comprises the following components in percentage by mass:
the melting range (the melting range of a substance is also called as a melting range interval, the two limits are respectively called as an initial melting temperature and a final melting temperature, the initial melting temperature is the temperature at which the substance starts to melt, and the final melting temperature is the temperature at which the substance is completely melted) of the heat storage phase change material is lower than 10 ℃, and the enthalpy value is 180-240J/g. The heat storage phase-change material is solid at normal temperature, has no corrosiveness, can be suitable for heat storage in heating modes such as water boiling, microwave and the like, is converted into liquid after being heated, and can continuously release heat for more than 1.5 hours.
The preparation method of the heat storage phase-change material is characterized by comprising the following steps:
The invention also provides a heating neckerchief applying the heat storage phase-change material, which comprises a neckerchief and the heat storage phase-change material positioned in the neckerchief; the enclosure is made of silica gel.
Furthermore, the enclosure is formed by splicing two arc-shaped silicone tubes, and two ends of the enclosure are sealed; the splicing device further comprises a sealing sleeve, and the sealing sleeve is sleeved at the splicing position.
Preferably, the two arc silicone tubes are spliced through the sleeve, and the spliced part is sealed through sealant.
The heat storage phase change material is solid at normal temperature, has no corrosivity, can be suitable for heat storage in heating modes such as poaching, microwave and the like, is converted into liquid after being heated, can continuously release heat for more than 1.5 hours in a room temperature environment, and is completely converted into solid after being cooled.
Compared with the existing supersaturated solution sodium acetate heat storage phase change material, the heat storage phase change material is more environment-friendly and safer. According to the heating neckerchief, the enclosure is formed by splicing the two arc-shaped silicone tubes, so that the heat storage phase-change material which is solid at normal temperature can be conveniently filled into the silicone tubes; further, establish the concatenation department at two arc silicone tubes through the seal cover, can not only strengthen the leakproofness between two arc silicone tubes, can improve the intensity of concatenation department simultaneously, splice the department fracture in avoiding the use.
Certainly, the phase-change material can be directly filled into the arc-shaped silica gel tube in a solid state, or can be injected into the arc-shaped silica gel tube after being melted, and after the heat storage phase-change material is cooled and solidified, the two arc-shaped silica gels are hermetically connected.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a structural view of a heating neckerchief in embodiment 1 of the present invention.
Fig. 2 is an exploded view of a heating neckerchief in embodiment 1 of the present invention.
Fig. 3 is a partially enlarged view of the area a in fig. 2.
FIG. 4 is a DSC chart of the heat storage phase change material of embodiment 8 of the present invention.
The designations in the drawings illustrate:
1-enclosure; 2-sealing sleeve; 11-right arc silicone tube; 12-left arc silicone tube; 13-a balloon; 14-a housing; 15-an extension; 111-an arc-shaped groove; 112-transverse grooves; 121-arc-shaped ribs; 122-transverse bead.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the present product is conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1-3, the heating neckerchief includes a neckerchief 1, a heat storage phase change material (not shown) and a sealing sleeve 2; the enclosure 1 is formed by hermetically connecting a hollow left arc-shaped silicone tube 12 and a hollow right arc-shaped silicone tube 11; the left arc-shaped silicone tube 12 and the right arc-shaped silicone tube 11 are hermetically connected to form an arc-shaped enclosure 1; the enclosure 1 is internally provided with an accommodating cavity, and the heat storage phase-change material is positioned in the accommodating cavity.
The right arc silicone tube 11 is sleeved with the left arc silicone tube 12. Specifically, the tip of right arc silicone tube 11 is equipped with extension 15, and the tip of left arc silicone tube 12 is equipped with accommodation portion 14, extension 15 cover establish and realize in accommodation portion 14 that the cover of left arc silicone tube 12 and right arc silicone tube 11 establishes to be connected. It can be understood that the extension part can also be arranged on the left arc-shaped silicone tube, and the accommodating part can be arranged on the right arc-shaped silicone tube.
The extending part 15 is provided with a plurality of ribs, and the ribs include an arc-shaped rib 121 along the direction around the inner wall of the accommodating part, and a transverse rib 122 along the butt joint direction of the left arc-shaped silicone tube and the right arc-shaped silicone tube. The accommodating portion 14 is provided with grooves corresponding to the accommodating ribs, and the grooves include an arc-shaped groove 111 corresponding to the arc-shaped rib 121 and a transverse groove 112 corresponding to the transverse rib 122. The design of the convex edge and the groove structure can strengthen the connection stability and the sealing performance of the right arc-shaped silicone tube 11 and the left arc-shaped silicone tube 12. Furthermore, a sealant is filled between the extending portion 15 and the accommodating portion 14, so as to further enhance the sealing performance between the right arc-shaped silicone tube 11 and the left arc-shaped silicone tube 12.
The sealing sleeve 2 is sleeved on the enclosure 1 and located at the joint of the left arc-shaped silicone tube 12 and the right arc-shaped silicone tube 11, and a sealing layer is arranged between the sealing sleeve 2 and the enclosure 1. The sealing layer is formed by solidifying the sealing glue coated between the sealing sleeve 2 and the surrounding ring 1.
Enclose 1 and seal cover 2 and be the silica gel material, and the silica gel material is applicable in microwave heating.
In this embodiment, enclosure 1 is the round tubular structure that both ends were equipped with hollow sacculus 13, the inside and the enclosure 1 inside of sacculus 13 hold the chamber intercommunication. The balloons 13 at both ends of the enclosure 1 abut against each other. In some other embodiments, the balloon 13 is provided with a weight member to make the heating neckpiece more fit to the body when being placed on the neck. It should be noted that the enclosure 1 may also be a polygonal tubular structure, and is not limited to the circular tubular structure in the embodiment.
The heat storage phase change material in the enclosure 1 is a mixture consisting of 1,2, 3-octadecanoic acid propane triester, 1,2, 3-hexadecanoic acid propane triester, 1,2, 3-tetradecanoic acid propane triester and nano titanium dioxide. The heat storage phase-change material is solid at normal temperature, has no corrosiveness, can be suitable for heating modes such as water boiling, microwave, baking, resistance wires and the like, is heated, is converted into a liquid state, and can continuously release heat for more than 1.5 hours.
In some other embodiments, the heating neck warmer can further comprise an insulating sleeve, and the heating neck warmer can be placed in the insulating sleeve to avoid rapid heat loss when the heating neck warmer releases heat. Further, the insulation cover can set up the electrical heating structure, and is concrete, sets up the electric heating wire who encircles the insulation cover on the insulation cover inner wall, connects external power source to the heating muffler heating through the electric heating wire, realizes the muffler heat storage that generates heat.
The preparation method of the heat storage phase-change material comprises the following steps: heating 1,2, 3-octadecanoic acid triglyceride, 1,2, 3-hexadecanoic acid triglyceride and 1,2, 3-tetradecanoic acid triglyceride to 75-100 ℃, melting and mixing uniformly, adding nano titanium dioxide and mixing uniformly.
The thermal storage phase change materials of the following examples were prepared according to the above preparation method.
Example 2
The heat storage phase change material of the embodiment comprises the following components in parts by weight per 100 parts by weight: 60-90 parts of 1,2, 3-octadecanoic acid triglyceride, 4-20 parts of 1,2, 3-hexadecanoic acid triglyceride, 1-10 parts of 1,2, 3-tetradecanoic acid triglyceride and 5-17 parts of nano titanium dioxide.
Example 3
The heat storage phase change material of the embodiment comprises the following components in parts by weight per 100 parts by weight: 60-90 parts of 1,2, 3-octadecanoic acid triglyceride, 4-20 parts of 1,2, 3-hexadecanoic acid triglyceride, 1-10 parts of 1,2, 3-tetradecanoic acid triglyceride and 5-17 parts of nano titanium dioxide.
Example 4
The heat storage phase change material of the embodiment comprises the following components in parts by weight per 100 parts by weight: 60 parts of 1,2, 3-octadecanoic acid triglyceride, 13 parts of 1,2, 3-hexadecanoic acid triglyceride, 10 parts of 1,2, 3-tetradecanoic acid triglyceride and 17 parts of nano titanium dioxide.
Example 5
The heat storage phase change material of the embodiment comprises the following components in parts by weight per 100: 90 parts of 1,2, 3-octadecanoic acid triglyceride, 4 parts of 1,2, 3-hexadecanoic acid triglyceride, 1 part of 1,2, 3-tetradecanoic acid triglyceride and 5 parts of nano titanium dioxide.
Example 6
The heat storage phase change material of the embodiment comprises the following components in parts by weight per 100: 70 parts of 1,2, 3-octadecanoic acid triglyceride, 15 parts of 1,2, 3-hexadecanoic acid triglyceride, 8 parts of 1,2, 3-tetradecanoic acid triglyceride and 7 parts of nano titanium dioxide.
Example 7
The heat storage phase change material of the embodiment comprises the following components in parts by weight per 100 parts by weight: 80 parts of 1,2, 3-octadecanoic acid triglyceride, 5 parts of 1,2, 3-hexadecanoic acid triglyceride, 8 parts of 1,2, 3-tetradecanoic acid triglyceride and 7 parts of nano titanium dioxide.
Example 8
The heat storage phase change material of the embodiment comprises the following components in parts by weight per 100 parts by weight: 87 parts of 1,2, 3-octadecanoic acid triglyceride, 5 parts of 1,2, 3-hexadecanoic acid triglyceride, 3 parts of 1,2, 3-tetradecanoic acid triglyceride and 5 parts of nano titanium dioxide.
A DSC test chart of the thermal storage phase change material of embodiment 8 of the present invention is shown in fig. 4.
In the course of development, the present inventors also tried to prepare composite materials of comparative examples 1 to 6 as shown in table 1 below based on the thermal storage phase change material of example 8. Comparative examples 1-6 methods of preparation of composites: according to the weight portion, 1,2, 3-octadecanoic acid propane triester, 1,2, 3-hexadecanoic acid propane triester and 1,2, 3-tetradecanoic acid propane triester (or 1,2, 3-dodecanoic acid propane triester) are heated, melted and mixed evenly, and then nano titanium dioxide is added and mixed evenly.
Table 1 components of the materials of example 8 and comparative examples 1-6
Furthermore, in the research and development process, the influence of different powders on the phase transition performance of the composition of the 1,2, 3-octadecanoic acid triglyceride, the 1,2, 3-hexadecanoic acid triglyceride and the 1,2, 3-tetradecanoic acid triglyceride is researched. Specifically, based on the heat storage phase change material of example 8, attempts were also made to prepare the composite materials of comparative examples 7 to 13 shown in table 2 below. Comparative examples 7-13 the preparation method of the composite material was: heating, melting and uniformly mixing 1,2, 3-octadecanoic acid triglyceride, 1,2, 3-hexadecanoic acid triglyceride and 1,2, 3-tetradecanoic acid triglyceride (or 1,2, 3-dodecanoic acid triglyceride) according to the parts by weight, adding the powder and uniformly mixing.
TABLE 2 composition of comparative example 7-13 materials
The following tests were performed on the materials of examples 4-8 and comparative examples 1-13.
Whether the phase change latent heat is available: according to the national standard GB/T19466.3-2004, a differential scanning calorimeter is adopted to test the material, the melting range is lower than 10 ℃ in the temperature rising process, and the enthalpy value is higher than 150J/g, thus the requirement is met.
Whether microwave heating is applicable or not: 200g of phase change material is placed in a microwave oven at room temperature, heating is carried out for 3 minutes by using 600W of heating power, and the temperature rise of the phase change material is more than 30 ℃.
Heat release time: the materials of examples 4-8 and comparative examples 1-13 were used to prepare heating neckerchields with the same specification, and after heat storage, the neckerchief was heated for 3 minutes with 600W heating power and then cooled to 40 ℃ in a room temperature environment.
The test results are shown in table 3:
table 3 test results for the materials of examples 4-8 and comparative examples 1-13
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A heat storage phase change material comprising the following composition: 1,2, 3-octadecanoic acid triglyceride, 1,2, 3-hexadecanoic acid triglyceride, 1,2, 3-tetradecanoic acid triglyceride and nano titanium dioxide.
2. The heat storage phase change material of claim 1, comprising the following components in percentage by mass:
3. the heat storage phase change material as claimed in claim 1, comprising the following components in percentage by mass:
4. the heat storage phase change material of claim 1, consisting of, in mass percent:
5. the heat storage phase change material of claim 4, consisting of, in mass percent:
6. the heat storage phase change material of claim 4 or 5, wherein the melting range of the heat storage phase change material is less than 10 ℃ and the enthalpy is 180-240J/g.
7. The method for preparing a heat storage phase change material according to any of claims 1-6, comprising the steps of:
heating 1,2, 3-octadecanoic acid triglyceride, 1,2, 3-hexadecanoic acid triglyceride and 1,2, 3-tetradecanoic acid triglyceride to 75-100 deg.C, melting, mixing, adding nanometer titanium dioxide, and mixing.
8. A heating neckerchief applying the heat storage phase change material as claimed in any one of claims 1 to 6, comprising a neckerchief and the heat storage phase change material positioned inside the neckerchief; the enclosure be the silica gel material.
9. The heating neckerchief according to claim 8, wherein the neckerchief is formed by splicing two arc silicone tubes, and two ends of the neckerchief are sealed; the splicing device further comprises a sealing sleeve, and the sealing sleeve is sleeved at the splicing position.
10. A heating neckerchief as claimed in claim 9, wherein the two curved silicone tubes are joined together by a sleeve and sealed at the joint by a sealant.
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| CN202211635539.5A CN115895604A (en) | 2022-12-19 | 2022-12-19 | Heat storage phase-change material and heating neckerchief applying same |
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| CN202211635539.5A CN115895604A (en) | 2022-12-19 | 2022-12-19 | Heat storage phase-change material and heating neckerchief applying same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116849908A (en) * | 2023-07-03 | 2023-10-10 | 安徽精良同硕塑膜科技有限公司 | High-resistance, seepage-proof and cooling collar and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116849908A (en) * | 2023-07-03 | 2023-10-10 | 安徽精良同硕塑膜科技有限公司 | High-resistance, seepage-proof and cooling collar and preparation method thereof |
| CN116849908B (en) * | 2023-07-03 | 2024-02-09 | 安徽精良同硕塑膜科技有限公司 | High-resistance, seepage-proof and cooling collar and preparation method thereof |
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