CN106244111A - A kind of nanometer eutectic phase-change material and preparation method - Google Patents
A kind of nanometer eutectic phase-change material and preparation method Download PDFInfo
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- CN106244111A CN106244111A CN201610615427.1A CN201610615427A CN106244111A CN 106244111 A CN106244111 A CN 106244111A CN 201610615427 A CN201610615427 A CN 201610615427A CN 106244111 A CN106244111 A CN 106244111A
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- 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
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Abstract
The invention discloses a kind of nanometer eutectic phase-change material, it is characterized in that: described phase-change material includes conventional phase-change material, nano-scale particle and stabilizer, described conventional phase-change material is low-temperature phase-change material, middle temperature phase-change material and the one of high temperature phase change material (pcm), and the particle diameter of described nano-scale particle is positioned between 5 ~ 300nm.The present invention is by adding nano-scale particle in conventional phase-change material, so that conventional phase-change material latent heat is improved, heat conduction is obviously enhanced, degree of supercooling reduces, and stability increases, and the preparation method step of the present invention is simple, the saving time, the nanometer eutectic phase transformation material property prepared is excellent.
Description
Technical field
The present invention relates to phase-change material technical field, particularly relate to a kind of nanometer eutectic phase-change material and preparation method.
Background technology
Existing phase change heat storage material kind is a lot, can be applicable to solar energy, builds the necks such as homoiothermic, cold-storage, waste heat recovery
Territory, has a lot of research institutions and enterprise to carry out substantial amounts of research-and-development activity, but commercially viable phase-change material is also
Seldom, mainly limited by material self stability and thermal storage density.
Phase-change material (PCM-Phase Change Material) is to vary with temperature and change state of matter and can carry
Material for latent heat.The process changing physical property is referred to as phase transition process, and at this moment phase-change material by absorption or discharges substantial amounts of latent
Heat.This material is once widely used human lives, will become the optimal environmental protection carrier of energy-conserving and environment-protective.
But phase-change material limits it and wide variety of it is critical only that optional material temperature latent heat is low, poor heat conductivity is supercool
Seriously, stability is not enough.Especially for low-temperature heat accumulating/cold-storage, optional material category is limited, and degree of supercooling is bigger than normal, circulation
Poor stability.
Therefore, the problems referred to above how solving phase-change material self are the directions that those skilled in the art are devoted to research.
Summary of the invention
The technical problem existed based on background technology, the present invention proposes a kind of nanometer eutectic phase-change material and preparation side
Method.
A kind of nanometer eutectic phase-change material that the present invention proposes, described phase-change material includes conventional phase-change material, nanoscale
Granule and stabilizer, described conventional phase-change material is low-temperature phase-change material, middle temperature phase-change material and the one of high temperature phase change material (pcm).
Preferably, the particle diameter of described nano-scale particle is positioned between 5 ~ 300nm.
Preferably, described nano-scale particle is nano metal, nano-oxide, nano-carbide, nano nitride and carbon
One in matter nano material is to five kinds.
Preferably, described nano metal is nanometer gold, nanometer silver, nano nickel, Nanometer Copper, Nanoscale Iron, nanometer indium, nanometer
One in chromium, nanometer tin, nanometer tungsten, nano-titanium and Nano-Zinc is to 11 kinds.
Preferably, described nano-oxide is silicon oxide, copper oxide, titanium oxide, aluminium oxide, zinc oxide, zirconium oxide, oxidation
One in magnesium, stannum oxide, nickel oxide, nanometer iron sesquioxide and nano ferriferrous oxide is to 11 kinds.
Preferably, during described nano-carbide is carborundum, zirconium carbide, boron carbide, tungsten carbide, chromium carbide and vanadium carbide
A kind of to six kinds.
Preferably, described nano nitride is nano-silicon nitride, Magnesium Nitride of Nanometric Size, Nano titanium nitride, nano aluminum nitride, receives
One in rice lithium nitride, nano silicon nitride phosphorus and nm-class boron nitride is to seven kinds.
Preferably, the one during described carbonaceous Nano-Materials is Graphene, CNT and fullerene is to three kinds.
Preferably, described stabilizer includes antiprecipitant and anti-cryogen excessively.
Invention further provides the preparation method of above-mentioned nanometer eutectic phase-change material, this preparation method includes following step
Rapid:
S1, weighs phase-change material and nano-oxide, makes nano-oxide pour in phase-change material and be sufficiently mixed, until mixing is all
Even；
S2, adds mixture in reactor and heats when 110 DEG C to 140 DEG C；
S3, maintains 110 DEG C to 140 DEG C after mixture melts completely and stirs one hour, make the dispersed formation of nano-oxide
Homogeneous molten material；
S4, takes out molten material, is subsequently adding antiprecipitant and anti-cryogen excessively, carries out cooling in two hour, received
Meter Gong Jing phase-change material.
Preferably, the mode being stirred in S3 is mechanical agitation or ultrasonic agitation.
In the present invention, by adding nano-scale particle in conventional phase-change material, so that conventional phase-change material latent heat obtains
To improving, heat conduction is obviously enhanced, and degree of supercooling reduces, and stability increases, and the preparation method step of the present invention is simple, saves the time,
The nanometer eutectic phase transformation material property prepared is excellent.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is explained orally further.
A kind of nanometer eutectic phase-change material, nanometer eutectic phase-change material, phase-change material includes conventional phase-change material, nanoscale
Granule and stabilizer, conventional phase-change material is low-temperature phase-change material, middle temperature phase-change material and the one of high temperature phase change material (pcm), stable
Agent includes antiprecipitant and anti-cryogen excessively.
The particle diameter of nano-scale particle is positioned between 5 ~ 300nm.
Nano-scale particle is in nano metal, nano-oxide, nano-carbide, nano nitride and carbonaceous Nano-Materials
One to five kinds.
Nano metal is nanometer gold, nanometer silver, nano nickel, Nanometer Copper, Nanoscale Iron, nanometer indium, nanometer chromium, nanometer tin, receives
One in rice tungsten, nano-titanium and Nano-Zinc is to 11 kinds.
Nano-oxide be silicon oxide, copper oxide, titanium oxide, aluminium oxide, zinc oxide, zirconium oxide, magnesium oxide, stannum oxide,
One in nickel oxide, nanometer iron sesquioxide and nano ferriferrous oxide is to 11 kinds.
Nano-carbide is that the one in carborundum, zirconium carbide, boron carbide, tungsten carbide, chromium carbide and vanadium carbide is to six kinds.
Nano nitride is nano-silicon nitride, Magnesium Nitride of Nanometric Size, Nano titanium nitride, nano aluminum nitride, nano silicon nitride lithium, receives
One in rice phosphorus nitride and nm-class boron nitride is to seven kinds.
Carbonaceous Nano-Materials is that the one in Graphene, CNT and fullerene is to three kinds.
Embodiment one:
Its preparation method comprises the following steps:
S1, weighs middle temperature phase-change material: erythritol 100g, nano-oxide: nano titanium oxide 10g, nano titanium oxide
Particle diameter be 5 ~ 50nm, make 10g nano titanium oxide pour in 100g erythritol and be sufficiently mixed, until mix homogeneously；
S2, adds mixture in reactor and heats when 120 DEG C；
S3, maintains 120 DEG C of mechanical agitation one hour after mixture melts completely, makes homogeneous the melting of the dispersed formation of mixture
Melt shape material；
S4, takes out molten material, is subsequently adding antiprecipitant and anti-cryogen excessively, carries out cooling in 1.5 hours, obtain nanometer altogether
Brilliant phase-change material.
Embodiment two:
Its preparation method comprises the following steps:
S1, weighs middle temperature phase-change material: erythritol 100g, nano nitride: Magnesium Nitride of Nanometric Size 20g, the grain of Magnesium Nitride of Nanometric Size
Footpath is 50 ~ 100nm, makes 20g Magnesium Nitride of Nanometric Size pour in 100g erythritol and is sufficiently mixed, until mix homogeneously；
S2, adds mixture in reactor and heats when 130 DEG C；
S3, maintains 130 DEG C of mechanical agitation one hour after mixture melts completely, makes homogeneous the melting of the dispersed formation of mixture
Melt shape material；
S4, takes out molten material, is subsequently adding antiprecipitant and anti-cryogen excessively, carries out cooling in 2 hours, obtain nanometer eutectic
Phase-change material.
Embodiment three:
Its preparation method comprises the following steps:
S1, weighs middle temperature phase-change material: erythritol 100g, nano metal: Nanoscale Iron 30g, and the particle diameter of Nanoscale Iron is 100 ~
200nm, makes 30g Nanoscale Iron pour in 100g erythritol and is sufficiently mixed, until mix homogeneously；
S2, adds mixture in reactor and heats when 140 DEG C；
S3, maintains 140 DEG C of mechanical agitation one hour after mixture melts completely, makes homogeneous the melting of the dispersed formation of mixture
Melt shape material；
S4, takes out molten material, is subsequently adding antiprecipitant and anti-cryogen excessively, carries out cooling in 2 hours, obtain nanometer eutectic
Phase-change material.
Embodiment four:
Its preparation method comprises the following steps:
S1, weighs middle temperature phase-change material: erythritol 100g, nano metal: Nanometer Copper 30g, and the particle diameter of Nanometer Copper is 100 ~
200nm, makes 30g Nanometer Copper pour in 100g erythritol and is sufficiently mixed, until mix homogeneously；
S2, adds mixture in reactor and heats when 140 DEG C；
S3, maintains 140 DEG C of mechanical agitation one hour after mixture melts completely, makes homogeneous the melting of the dispersed formation of mixture
Melt shape material；
S4, takes out molten material, is subsequently adding antiprecipitant and anti-cryogen excessively, carries out cooling in 2 hours, obtain nanometer eutectic
Phase-change material.
Carrying out temperature lift-down curve test to obtaining nanometer eutectic phase-change material, DSC tests, Determination of conductive coefficients, test knot
Fruit display, latent heat can improve 1.5%-3%, and heat conductivity improves 25%-35%, and degree of supercooling reduces 26%-31%.
The present invention is by adding nano-scale particle in conventional phase-change material, so that conventional phase-change material latent heat is carried
Height, heat conduction is obviously enhanced, and degree of supercooling reduces, and stability increases, and the preparation method step of the present invention is simple, saves the time, preparation
Nanometer eutectic phase transformation material property out is excellent.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (12)
1. a nanometer eutectic phase-change material, it is characterised in that: described phase-change material includes conventional phase-change material, nano-scale particle
And stabilizer, described conventional phase-change material is low-temperature phase-change material, middle temperature phase-change material and the one of high temperature phase change material (pcm).
A kind of nanometer eutectic phase-change material the most according to claim 1, it is characterised in that: the particle diameter of described nano-scale particle
It is positioned between 5 ~ 300nm.
A kind of nanometer eutectic phase-change material the most according to claim 1, it is characterised in that: described nano-scale particle is nanometer
One in metal, nano-oxide, nano-carbide, nano nitride and carbonaceous Nano-Materials is to five kinds.
A kind of nanometer eutectic phase-change material the most according to claim 3, it is characterised in that: described nano metal is nanometer
In gold, nanometer silver, nano nickel, Nanometer Copper, Nanoscale Iron, nanometer indium, nanometer chromium, nanometer tin, nanometer tungsten, nano-titanium and Nano-Zinc
A kind of to 11 kinds.
A kind of nanometer eutectic phase-change material the most according to claim 3, it is characterised in that: described nano-oxide is oxidation
Silicon, copper oxide, titanium oxide, aluminium oxide, zinc oxide, zirconium oxide, magnesium oxide, stannum oxide, nickel oxide, nanometer iron sesquioxide and receive
One in rice ferroso-ferric oxide is to 11 kinds.
A kind of nanometer eutectic phase-change material the most according to claim 3, it is characterised in that: described nano-carbide is carbonization
One in silicon, zirconium carbide, boron carbide, tungsten carbide, chromium carbide and vanadium carbide is to six kinds.
A kind of nanometer eutectic phase-change material the most according to claim 3, it is characterised in that: described nano nitride is nanometer
In silicon nitride, Magnesium Nitride of Nanometric Size, Nano titanium nitride, nano aluminum nitride, nano silicon nitride lithium, nano silicon nitride phosphorus and nm-class boron nitride
A kind of to seven kinds.
A kind of nanometer eutectic phase-change material the most according to claim 3, it is characterised in that: described carbonaceous Nano-Materials is stone
One in ink alkene, CNT and fullerene is to three kinds.
A kind of nanometer eutectic phase-change material the most according to claim 1, it is characterised in that: described stabilizer includes antisolvent precipitation
Agent and anti-cryogen excessively.
10. the preparation method of a nanometer eutectic phase-change material, it is characterised in that: this preparation method comprises the following steps:
S1, weighs phase-change material and nano-oxide, makes nano-oxide pour in phase-change material and be sufficiently mixed, until mixing is all
Even；
S2, adds mixture in reactor and heats when 110 DEG C to 140 DEG C；
S3, maintains 110 DEG C to 140 DEG C after mixture melts completely and stirs one hour, make the dispersed formation of nano-oxide
Homogeneous molten material；
S4, takes out molten material, is subsequently adding antiprecipitant and anti-cryogen excessively, carries out cooling in two hour, received
Meter Gong Jing phase-change material.
The preparation method of 11. a kind of nanometer eutectic phase-change materials according to claim 10, it is characterised in that: receive in S1
The mass ratio of rice oxide and phase-change material is between 3/1sts to seven/99th.
The preparation method of 12. a kind of nanometer eutectic phase-change materials according to claim 10, it is characterised in that: enter in S3
The mode of row stirring is mechanical agitation or ultrasonic agitation.
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Cited By (8)
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| CN106986662A (en) * | 2017-04-01 | 2017-07-28 | 长兴微羽智能科技有限公司 | A kind of solar energy heat absorbing ceramic material and preparation method thereof |
| CN107010962A (en) * | 2017-04-01 | 2017-08-04 | 长兴微羽智能科技有限公司 | A kind of low-cost solar heat absorption ceramic material and preparation method thereof |
| CN107162623A (en) * | 2017-05-22 | 2017-09-15 | 江苏中路交通科学技术有限公司 | A kind of low-cost solar ceramic material applied to solar heat power generation system |
| CN107162577A (en) * | 2017-05-22 | 2017-09-15 | 江苏中路交通科学技术有限公司 | A kind of solar energy ceramic material applied to tower-type solar thermal power generating system |
| CN109021927A (en) * | 2017-06-09 | 2018-12-18 | 徐辉 | Phase-change heat-storage material composition and preparation method thereof for heat storage type electric heater |
| CN110373163A (en) * | 2019-08-01 | 2019-10-25 | 西安交通大学城市学院 | A kind of air energy cold-storage phase-change material and preparation method thereof |
| CN110528097A (en) * | 2019-07-31 | 2019-12-03 | 天津工业大学 | A kind of photothermal conversion, thermo-regulated fiber cellulose fiber and preparation method thereof |
| CN112480872A (en) * | 2020-11-27 | 2021-03-12 | 南京航空航天大学 | Positive-displacement integrated composite phase-change heat storage material and preparation method thereof |
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Cited By (12)
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| CN106986662A (en) * | 2017-04-01 | 2017-07-28 | 长兴微羽智能科技有限公司 | A kind of solar energy heat absorbing ceramic material and preparation method thereof |
| CN107010962A (en) * | 2017-04-01 | 2017-08-04 | 长兴微羽智能科技有限公司 | A kind of low-cost solar heat absorption ceramic material and preparation method thereof |
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| CN107162623A (en) * | 2017-05-22 | 2017-09-15 | 江苏中路交通科学技术有限公司 | A kind of low-cost solar ceramic material applied to solar heat power generation system |
| CN107162577A (en) * | 2017-05-22 | 2017-09-15 | 江苏中路交通科学技术有限公司 | A kind of solar energy ceramic material applied to tower-type solar thermal power generating system |
| CN107162623B (en) * | 2017-05-22 | 2020-05-22 | 江苏中路交通科学技术有限公司 | Low-cost solar ceramic material applied to solar thermal power generation system |
| CN107162577B (en) * | 2017-05-22 | 2020-05-22 | 江苏中路交通科学技术有限公司 | Solar ceramic material applied to tower type solar thermal power generation system |
| CN109021927A (en) * | 2017-06-09 | 2018-12-18 | 徐辉 | Phase-change heat-storage material composition and preparation method thereof for heat storage type electric heater |
| CN110528097A (en) * | 2019-07-31 | 2019-12-03 | 天津工业大学 | A kind of photothermal conversion, thermo-regulated fiber cellulose fiber and preparation method thereof |
| CN110373163A (en) * | 2019-08-01 | 2019-10-25 | 西安交通大学城市学院 | A kind of air energy cold-storage phase-change material and preparation method thereof |
| CN112480872A (en) * | 2020-11-27 | 2021-03-12 | 南京航空航天大学 | Positive-displacement integrated composite phase-change heat storage material and preparation method thereof |
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