CN107513376A - A kind of high performance phase-change heat-storage material and by its obtained container - Google Patents
A kind of high performance phase-change heat-storage material and by its obtained container Download PDFInfo
- Publication number
- CN107513376A CN107513376A CN201710837902.4A CN201710837902A CN107513376A CN 107513376 A CN107513376 A CN 107513376A CN 201710837902 A CN201710837902 A CN 201710837902A CN 107513376 A CN107513376 A CN 107513376A
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- China
- Prior art keywords
- phase
- container
- storage material
- change heat
- decker
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
- C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G19/00—Table service
- A47G19/02—Plates, dishes or the like
- A47G19/027—Plates, dishes or the like with means for keeping food cool or hot
Abstract
A kind of high performance phase-change heat-storage material and by its obtained container.The phase-change heat-storage material preparing raw material includes following component by weight percentage：Organic phase change material 60% 95%, graphite 3% 30%, carbon fiber 1% 5%, molybdenum powder 0.1% 2%, graphene 0.5% 5%.The material can significantly increase its thermal conductivity, quickly temperature can be transferred in phase-change material while energy is stored, and stably can be long-term use of.Container using the phase-change heat-storage material of the present invention can be accomplished to cool.Boiling hot food, such as congee, soup, class food materials is pasted after being put into container, in 3 minutes, you can to eat, substantially increase cooling efficiency.Simultaneously, the phase-change heat-storage material and container of the present invention is in the case of fast cooling, lasting heat insulation effect can also be provided, if container of the invention is for the food materials of equal edible temperature, under equal standing time, the bowl made using technique in the present invention compares daily general bowl, can extend more than 1 times of soaking time.
Description
Technical field
The invention belongs to heat exchange material field, and in particular to a kind of high performance phase-change heat-storage material and as made from it
Container.
Background technology
Phase-change material (PCM-Phase Change Material) refers to vary with temperature and change state of matter and can carry
For the material of latent heat.The process of transformation physical property is referred to as phase transition process, and at this moment phase-change material will absorb or release is substantial amounts of latent
Heat.Phase-change heat-storage material has in fields such as spacecraft thermal control, phase-change accumulation energy, building energy conservation, solar thermal utilization, chip coolings
Extremely wide application.Conventional phase-change heat-storage material is divided into solid-liquid phase change material and solid-solid phase change material, solid-liquid phase change material
Including paraffin, aliphatic acid, sodium sulphate hydrated salt, calcium chloride hydrated salt etc., solid-solid phase change material has polyalcohol, macromolecule chemical combination
Thing, laminated perovskite etc..
Conventional phase-change heat-storage material mainly has two problems, first, carrying out phase transformation storage using organic or inorganic material
In the case of heat, single phase-change heat-storage material occur maximum the problem of be exactly that its thermal conductivity is not strong, can accomplish storage temperature
The characteristic of degree, but absorption heat is slower, and effect is poor.Meanwhile common phase-change material, its heat enthalpy value is relatively low, i.e. unit grammes per square metre
In the case of, the heat that can be stored is low, for example, the heat of 300ml boiling water is sponged if desired, common phase-change material one
As need at least 250-300g material weight, just can guarantee that the balance of properties of product and reach expected cooling-down effect.Separately
Outside, composite phase-change microcapsule product can improve certain thermal conductivity, but can not take into account heat enthalpy value, that is, need bigger volume,
To accomplish same thing, therefore performance is bad.
The existing method for improving phase-change heat-storage material heat conductivility, which focuses primarily upon to add in conventional phase change material, to be led
Hot reinforcing agent, i.e., metal powder, graphite particle etc. and phase-change material are mixed, to improve the equivalent thermal conductivity of composite phase-change material
(CN102241963A, CN102660230A).However, this not high bottleneck defect of matrix phase transformation material thermal conductivity is limited by,
The raising of the thermal conductivity for the composite phase-change material being made by this kind of method is still fairly limited.In addition, the above method is also
Exist complex manufacturing technology, repeatedly inhale heat release circulation after easily be separated, stability difference the deficiencies of.Therefore, a kind of thermal conductivity is found
Rate is sufficiently high, can it is long-term use of, make and phase-change heat-storage material easy to use, be still asking for current industrial circle urgent need to resolve
Topic.
The content of the invention
Therefore, an object of the present invention is to provide a kind of high performance phase-change heat-storage material.The material is in storage energy
While amount, it can significantly increase its thermal conductivity, quickly temperature can be transferred in phase-change material, and stably can be long-term
Use.
For the above-mentioned purpose, the present invention adopts the following technical scheme that：
A kind of high performance phase-change heat-storage material, its preparing raw material include following component by weight percentage：
The organic phase change material is, for example, 63%, 67%, 71%, 75%, 79%, 83%, 88%, 92% etc..
The graphite is, for example, 5%, 9%, 13%, 17%, 21%, 26%, 29% etc..
The carbon fiber is, for example, 1.5%, 2.3%, 3.2%, 3.8%, 4.3%, 4.8% etc..
The molybdenum powder is, for example, 0.3%, 0.6%, 0.9%, 1.2%, 1.5%, 1.8% etc..
The graphene is, for example, to wait 0.8%, 1.2%, 1.5%, 2.3%, 3.2%, 3.8%, 4.3%, 4.8% etc..
Preferably, described phase-change heat-storage material preparing raw material includes following component by weight percentage：
For the present invention based on organic phase change material, graphite provides thermal conductivity as supporting body, carbon fiber and molybdenum powder, adds
Add graphene, increase the binding ability between material, high performance phase-change heat-storage material, also referred to as " as incompatible as ice and hot coals " material is made.It is general
Logical phase-change material generally requires at least 250-300g material weight, just can guarantee that the balance of properties of product and reaches expected effect
Fruit；" as incompatible as ice and hot coals " material in the present invention, 50g weight, you can reach corresponding effect, volume and weight can be greatly reduced.
Common phase-change material, thermal conductivity is not typically strong, does not accomplish the quick characteristic for reducing temperature, is quickly led even in reaching
In the case of thermal characteristics, its stability of material and plasticity are often poor.The present invention provides a kind of Stability Analysis of Structures, performance are steady
It is fixed, it is long-term use of zero-decrement, with quick conductive and the high performance quick conductive phase-change material of heat can be stored, can reached
The effect of Fast-Balance temperature, while by material mixture ratio amendment, reduce thermal losses, improves the heat enthalpy value of material, makes it can be with
Energy more than storage as far as possible, reach the purpose of more longlasting heat release insulation.
Preferably, the organic phase change material can be used in the lipid organic phase change materials such as paraffin, aliphatic acid, laurate
One kind or two or more combination, it is different according to label, prepare the product of differential responses temperature.According to product demand, the present invention exists
When choosing organic phase change material, according to required phase transition temperature, different material selections is carried out, including unit phase transformation system is (i.e.
Only a kind of material system of phase-change material), and polynary phase transformation system (above-mentioned different materials mixing), for preparing different temperatures
Product.In polynary phase transformation system, material is only simply mixed after thawing, no specially treated.
Preferably, the fusing point of the organic phase change material is 30-80 DEG C.
Preferably, the heat enthalpy value of the organic phase change material is 50-350kJ/kg.
Preferably, the graphite selects crystalline flake graphite, preferably scale expansible graphite.
Preferably, the carbon fiber strengthens phase-change heat-storage material from the chopped carbon fiber that length is 2mm-12mm
Overall construction intensity and thermal conductivity, preferably monofilament structure.
Preferably, the molybdenum powder uses nano-scale molybdenum powder, increase the thermal conductivity of phase-change heat-storage material, and provide one
Strengthen the molecular binding affinities between graphite, organic material and carbon fibre material, phase-change heat-storage material is combined closely, more preferably
50-500nm molybdenum powder.
The present invention has created " as incompatible as ice and hot coals " material, and it act as, and can quickly absorb heat energy, will be attached in one minute
The heat energy quick adsorption of " as incompatible as ice and hot coals " material, it is equilibrated to assigned temperature, and energy is stored, the later stage is reversely put
Heat, meanwhile, stored energy temperature can be controlled as needed.
The phase-change heat-storage material of the present invention can use existing method or the method found in the future to prepare.As preferably making
Prepare, comprise the following steps with the following method：
(1) it is uniformly blended into after organic phase change material is melted in the graphite of high temperature, graphite occurs necessarily in the case of a high temperature
Property changes, and both combine, and forms a kind of firm capsule state material, organic material is adsorbed on thereon, in high temperature melting
Afterwards, solid state is still kept；
(2) molybdenum powder of molten state is sprayed into step (1) resulting materials, is rapidly cooled to less than 300 DEG C, add graphene with
Pre-dispersed carbon fiber, is sufficiently mixed, and the phase-change heat-storage material of the present invention, also referred to as " as incompatible as ice and hot coals " material is made.Molybdenum
Powder need to melt at a high temperature of 2600-2700 DEG C.
Preferably, organic phase change material is at 300 DEG C or so in step (1), such as 300 ± 20 DEG C of fusings.
Preferably, by graphite heating to 1500 DEG C or so, such as 1500 ± 200 DEG C of high temperature.
An object of the present invention, which also resides in, provides a kind of container, including inwall double-decker and outer sheath, outer cover
Layer is enclosed on outside inwall double-decker, and phase-change heat-storage material of the present invention is placed in inwall double-decker.
The container of the present invention can be assembled and produced in batches with fast and easy, there is provided best thermal conductivity structure, can be quick
Equilibrium temperature, it is easy to process, and there is enough structural strengths, and outward appearance can suitability it is strong.
Preferably, inwall double-decker is shaped in advance with mould, post package into an entirety, ensure its stability and
Compactness.
Preferably, inwall double-decker and phase-change heat-storage material contact position of the present invention increase metal beehive knot
Structure, with increased thermal conductivity.
Preferably, adding high insulation material among inwall double-decker and outer sheath, it is preferably but not limited to use
Aeroge and/or polyurathamc.
Preferably, the base section of the container is isolating construction, physics package assembly is made, with inwall double-decker
Carry out physical engagement.
Preferably, the physics package assembly includes but is not limited to screw socket or snap-fastener.
Preferably, structure of container of the present invention is as follows：
Inwall double-decker, internal layer places phase-change heat-storage material of the present invention, i.e. " as incompatible as ice and hot coals " material, leading with mould
Sizing, post package ensure its stability and compactness into an entirety；
Inwall double-decker and " as incompatible as ice and hot coals " material position, increase metal honeycomb structure, increased thermal conductivity；
Outside inwall double-decker, one layer of outer sheath, the unlimited prepared material of outer sheath are covered；
Among inwall double-decker and outer sheath, high insulation material is added, it is presently preferred to use aeroge and/or hair
Polyurethane is steeped as product insulation material, is not limited to two kinds of materials.
Base section, isolating construction, physics package assembly (such as screw socket, snap-fastener etc.) is made, is entered with inwall double-decker
Row physical engagement is such as spirally connected.
The present invention devises a kind of structure of container, makes in container when holding liquid, fluid, solid, can be with quick flat
Weigh temperature, and controls temperature as far as possible prolonged constant in certain temperature, slows down the change of container internal temperature.
Preferably, the container is bowl, and because food places wherein 1 minute or so i.e. edible, thus it is also known as instant
Bowl.
Beneficial effects of the present invention are as follows：
The phase-change heat-storage material of the present invention, can reach fast endothermic, the spy of lasting accumulation of heat in the case of minimum volume
Property, existing material is contrasted, its thermal conductivity factor is higher than conventional phase change material decades of times, and heat enthalpy value is also far above equal encapsulation phase transformation
Material, the material temperature in container can be quickly reduced, balanced to optimal use temperature, there is splendid performance.
Container using the phase-change heat-storage material of the present invention can accomplish boiling hot food, as congee, soup, paste class food materials are being put
, most soon can 1 minute or so time in 3 minutes, you can with edible after entering in container；Use the normal bowl of equal bore, food materials
, it is necessary to time no less than 15 minutes in the case of being cooled to edible temperature, it is seen then that container provided by the invention can carry significantly
Height cooling efficiency.
Meanwhile phase-change heat-storage material of the invention and container can also provide lasting guarantor in the case of fast cooling
Temp effect, such as container of the present invention under equal standing time, use work in the present invention for the food materials of equal edible temperature
The bowl that skill makes can extend more than 1 times of soaking time compared to daily general bowl.
Brief description of the drawings
Fig. 1 is the overall diagram of inventive container embodiment 1；
Fig. 2 is the overall side view of container shown in Fig. 1；
Fig. 3 is the outer sheath figure of container shown in Fig. 1；
Fig. 4 is the inner bag figure of container shown in Fig. 1；
Fig. 5 is the inwall double-decker profile of container shown in Fig. 4；
Fig. 6 is the overall sectional side view of container shown in Fig. 1；
Fig. 7 is that the unitary side of container shown in Fig. 1 regards upward view.
Embodiment
For ease of understanding the present invention, it is as follows that the present invention enumerates embodiment.Those skilled in the art are it will be clearly understood that the implementation
Example is used only for help and understands the present invention, is not construed as the concrete restriction to the present invention.
Embodiment 1
A kind of high performance phase-change heat-storage material, its preparing raw material include following component by weight percentage：
Embodiment 2
Embodiment 3
A kind of high performance phase-change heat-storage material, its preparing raw material include following component by weight percentage：
Embodiment 4
Container embodiments 1
I.e. bowl as shown in Figure 1 is made using phase-change heat-storage material made from embodiment 1, Fig. 2 is container shown in Fig. 1
Overall side view；Fig. 6 is the overall sectional side view of container shown in Fig. 1；Fig. 7 is that the unitary side of container shown in Fig. 1 regards upward view.Institute
State i.e. inwall double-decker of the bowl shown in including the outer sheath and Fig. 4 shown in Fig. 3；Fig. 5 is inwall double-decker shown in Fig. 4
Profile.
As shown in fig. 6, i.e. bowl manufactured in the present embodiment includes inwall double-decker and outer sheath, outer sheath is enclosed on
Outside inwall double-decker, obtained phase-change heat-storage material in embodiment 1 is placed in inwall double-decker.
Inwall double-decker is shaped in advance with mould, and post package is into an entirety, inwall double-decker and described phase transformation
Heat accumulating contact position increases metal honeycomb structure, and aeroge, bottom are added among inwall double-decker and outer sheath
Part is isolating construction, makes physics package assembly, physical engagement is carried out by screw socket with inwall double-decker.
After testing, at 25 DEG C or so at room temperature, i.e. edible after loading in a reservoir after boiling hot congee in 3 minutes.
Container embodiments 2
It is identical with container embodiments 1, except placing obtained phase-change heat-storage material in embodiment 2 in inwall double-decker,
Polyurathamc is added among inwall double-decker and outer sheath.
After testing, at 25 DEG C or so at room temperature, i.e. edible after loading in a reservoir after boiling hot congee in 3 minutes.
Container embodiments 3
It is identical with container embodiments 1, except placing obtained phase-change heat-storage material in embodiment 3 in inwall double-decker.
After testing, at 25 DEG C or so at room temperature, i.e. edible after loading in a reservoir after boiling hot congee in 3 minutes.
Container embodiments 4
It is identical with container embodiments 1, except placing obtained phase-change heat-storage material in embodiment 4 in inwall double-decker.
After testing, at 25 DEG C or so at room temperature, i.e. edible after loading in a reservoir after boiling hot congee in 3 minutes.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (10)
1. a kind of high performance phase-change heat-storage material, its preparing raw material includes following component by weight percentage：
2. phase-change heat-storage material according to claim 1, it is characterised in that described phase-change heat-storage material preparing raw material is pressed
Percentage by weight includes following component：
3. phase-change heat-storage material according to claim 1 or 2, it is characterised in that stone can be used in the organic phase change material
One kind or two or more combination in wax, aliphatic acid, laurate；
Preferably, the graphite selects crystalline flake graphite, preferably scale expansible graphite.
4. according to the phase-change heat-storage material described in claim any one of 1-3, it is characterised in that the carbon fiber is from length
2mm-12mm chopped carbon fiber；
Preferably, the molybdenum powder uses nano-scale molybdenum powder.
5. a kind of container, including inwall double-decker and outer sheath, outer sheath are enclosed on outside inwall double-decker, its feature exists
In the phase-change heat-storage material in inwall double-decker described in placement claim any one of 1-4.
6. container according to claim 5, it is characterised in that inwall double-decker is shaped in advance with mould, post package into
One entirety.
7. the container according to claim 5 or 6, it is characterised in that inwall double-decker and described phase-change heat-storage material
Contact position increases metal honeycomb structure.
8. according to the container described in claim any one of 5-7, it is characterised in that among inwall double-decker and outer sheath
High insulation material is added, preferably using aeroge and/or polyurathamc.
9. according to the container described in claim any one of 5-8, it is characterised in that the base section of the container is tied for separation
Structure, physics package assembly is made, physical engagement is carried out with inwall double-decker；
Preferably, the physics package assembly is screw socket or snap-fastener.
10. according to the container described in claim any one of 5-9, it is characterised in that the container is bowl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710837902.4A CN107513376A (en) | 2017-09-18 | 2017-09-18 | A kind of high performance phase-change heat-storage material and by its obtained container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710837902.4A CN107513376A (en) | 2017-09-18 | 2017-09-18 | A kind of high performance phase-change heat-storage material and by its obtained container |
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| CN107513376A true CN107513376A (en) | 2017-12-26 |
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| CN201710837902.4A Pending CN107513376A (en) | 2017-09-18 | 2017-09-18 | A kind of high performance phase-change heat-storage material and by its obtained container |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109456735A (en) * | 2018-11-28 | 2019-03-12 | 东北电力大学 | A kind of palmitinic acid/expanded graphite/carbon fiber composite phase-change material and preparation method thereof |
| CN111072318A (en) * | 2019-12-22 | 2020-04-28 | 同济大学 | Graphene aerogel phase-change composite material with oriented heat conduction characteristic and preparation method thereof |
| CN114716976A (en) * | 2020-12-22 | 2022-07-08 | 佛山市顺德区美的电热电器制造有限公司 | Composite phase change material, container assembly and preparation method of composite phase change material |
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| US20120193572A1 (en) * | 2011-02-01 | 2012-08-02 | Sleep Innovations, Inc. | Bedding product having phase change material |
| CN106061863A (en) * | 2013-12-19 | 2016-10-26 | 弗劳恩霍夫应用研究促进协会 | Container having a mixture of phase-change material and graphite powder |
| CN104398095A (en) * | 2014-12-15 | 2015-03-11 | 航天特种材料及工艺技术研究所 | Intelligent temperature control efficient heat preservation cup |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109456735A (en) * | 2018-11-28 | 2019-03-12 | 东北电力大学 | A kind of palmitinic acid/expanded graphite/carbon fiber composite phase-change material and preparation method thereof |
| CN111072318A (en) * | 2019-12-22 | 2020-04-28 | 同济大学 | Graphene aerogel phase-change composite material with oriented heat conduction characteristic and preparation method thereof |
| CN111072318B (en) * | 2019-12-22 | 2021-09-03 | 同济大学 | Graphene aerogel phase-change composite material with oriented heat conduction characteristic and preparation method thereof |
| CN114716976A (en) * | 2020-12-22 | 2022-07-08 | 佛山市顺德区美的电热电器制造有限公司 | Composite phase change material, container assembly and preparation method of composite phase change material |
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