CN107446553A - A kind of composite phase-change energy storage material and preparation method thereof - Google Patents
A kind of composite phase-change energy storage material and preparation method thereof Download PDFInfo
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- CN107446553A CN107446553A CN201710692178.0A CN201710692178A CN107446553A CN 107446553 A CN107446553 A CN 107446553A CN 201710692178 A CN201710692178 A CN 201710692178A CN 107446553 A CN107446553 A CN 107446553A
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- 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
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Abstract
The invention discloses a kind of composite phase-change energy storage material and preparation method thereof, including material of main part, suspending agent, nucleator, enhanced thermal conduction agent, its mass percentage content to be：Material of main part 86% 95.5%, suspending agent 2.5% 9%, nucleator 1% 2%, enhanced thermal conduction agent 1% 5%；The present invention is matched by choosing suitable material and auxiliary agent, effectively reduce phase separation and the degree of supercooling problem of material, suitable for all kinds of heat exchangers, enhanced thermal conduction agent is especially added in system, improves 34 times of thermal conductivity of material, the thermal conductivity of system is realized and has system stability concurrently, with abundant raw materials, it is cheap, energy storage density significantly, the advantages that corrosivity is small.
Description
Technical field
The present invention relates to energy storage material field, more specifically to a kind of composite phase-change energy storage material and its preparation side
Method.
Background technology
Thermal storage and energy accumulation technology is widely used in renewable energy utilization and energy-saving field in recent years, and energy storage technology is
Through the strategic problem as energy security and sustainable development.In the method for numerous energy storage, the latent heat of solid-liquid phase change material
Energy storage mode is widely used in air conditioner energy saving, the sun due to the features such as its high latent heat high density and phase transition temperature of relative constancy
It can utilize, the field such as Thermal Design of Electronic Equipments, building energy conservation.
In the market has many heating and refrigeration system, wherein being much dependent on fossil energy.With ever-increasing environment
The support of friendly system, different alternative solar energy or water resource system are suggested, for example, photovoltaic, photo-thermal, hydroelectric generation,
Tide energy, biomass energy.
And these regenerative resources are because the discontinuity of the energy is, it is necessary to the support of energy storage device.Heat accumulation equipment, by these
Discontinuous electric energy is converted into heat energy, is realized by the solid-liquid phase change characteristic of phase change material inside.The phase transition temperature of sodium acetate
Suitable for family expenses, but because its heat transfer is unstable, at a set temperature, the solid-liquid that sodium acetate is molten to sodium acetate from solid-state mixes
Conjunction state and molten condition, which switch to the middle of solid-state, can form the solid through whole material life cycle, and the meeting of these solids can not
PCM container bottoms are stored in inversely.
Therefore need to provide a kind of composite phase-change energy storage material and preparation method thereof, while reduce degree of supercooling and avoid mutually dividing
From, raising uses cycle-index, increases the service life, and this material provides core material technology in the development in energy storage field,
Have very important significance.
The content of the invention
To complete above-mentioned purpose, and overcome the deficiencies in the prior art, the present invention provide a kind of composite phase-change energy storage material and
Its preparation method, including material of main part, suspending agent, nucleator, enhanced thermal conduction agent, wherein suspending agent include the first suspending agent and the
Two suspending agents.Each ingredient percent content is：Material of main part 86%-95.5%, suspending agent 2.5%-9%, nucleator 1%-2%,
Enhanced thermal conduction agent 1%-5%.
Preferably, described material of main part uses the sodium acetate trihydrate of technical grade more than 97%, mass fraction 90%wt.
Preferably, the first described suspending agent is Degussa A200 hydrophilic fumed silicas, mass fraction 2%-8%.
Preferably, the second described suspending agent is carboxymethyl cellulose（CMC）, mass fraction 0.5%-1%.
Preferably, described nucleator is zinc acetate, mass fraction 1%-2%.
Preferably, described enhanced thermal conduction agent is foam copper powder, mass fraction 1%-5%.
Preferably, described foam copper powder, density 1.4-1.5g/cm3。
The present invention provides a kind of preparation method of composite phase-change material simultaneously, and step is.
（1）Material of main part sodium acetate trihydrate, zinc acetate are mixed in proportion, obtain mixing material.
（2）By phase transformation mixing material heating fusing until solution keeps 65 DEG C of temperature, then with 2000-3000rpm speed
Rate side in reaction vessel is stirred, while being proportionally added into foam copper powder, carboxymethyl cellulose and hydrophilic fumed silica
Premix, about half an hour add, and continue stirring 1 hour, stand cooling, obtain well mixed phase-changing energy storage material.
The present invention compared with the existing technology, has following advantage.
（1）The thermal conductivity of reinforcing.By adding 90%wt sodium acetate trihydrates and mass fraction 1%-5%, density 1.4-
1.5g/cm3Foam copper powder, for the inorganic hydrophilic fumed silica of simultaneous selection as the first suspending agent, selection is organic
Carboxymethyl cellulose（CMC）Material is as the second suspending agent so that the similar density of foam copper powder and material of main part, reaches uniformly
The state of mixing, while two kinds of suspending agents form a kind of structure of colloidal nature so that foam copper powder keeps suspended state, effectively
Prevent the sedimentation of copper powder.
（2）The addition of suspending agent adds material system resistance to overturning so that extends the Exotherm Time of material.
（3）Heat endurance.Foam copper powder of the addition with Thermal conductivity is led as enhanced thermal conduction agent using metal height
It is hot, strengthen the heat transfer property of integral material, while reduce the quantity of heat exchange pipeline.
（4）Security.Selected Sodium acetate trihydrate and adjuvant system are to foam copper powder non-corrosiveness, in the absence of due to corruption
Lose and reduce the phenomenon in life-span.
（5）Avoid being separated.The addition of foam copper powder also increases the viscosity of system, it is suppressed that phenomenon of phase separation.Eliminate
Material of main part dissolves and crystallization process crystal deposition phenomenon caused by density contrast.
Brief description of the drawings
Fig. 1 is the cooling curve of the composite phase-change material of the embodiment of the present invention 1.
Fig. 2 is the enthalpy curve of the composite phase-change material of the embodiment of the present invention 1.
Embodiment
To further illustrate the present invention, illustrate with the following Examples.
Embodiment 1.
Sodium acetate trihydrate 100kg and zinc acetate 1.5kg are weighed, heating fusing is until solution keeps 65 DEG C of temperature, so
With 2500rpm speed, side is stirred in reaction vessel afterwards, and it is 1.4-1.5g/cm that side, which adds 1.11kg density,3Foam copper powder,
The premix of 1.11kg carboxymethyl celluloses and 0.33kg hydrophilic fumed silica, about half an hour add, and continue to stir
Mix 1 hour, be placed in heat exchanger, stand cooling, obtain well mixed phase-changing energy storage material.Measure a kind of composite phase change energy-storing
Material enthalpy is 312kJ/kg, thermal conductivity factor 0.7W/mK.
Embodiment 2.
Sodium acetate trihydrate 100kg and zinc acetate 1.67kg are weighed, heating fusing is until solution keeps 65 DEG C of temperature, so
With 2000rpm speed, side is stirred in reaction vessel afterwards, and it is 14-1.5g/cm that side, which adds 2.22kg density,3Foam copper powder,
The premix of 1.11kg carboxymethyl celluloses and 0.55kg hydrophilic fumed silica, about half an hour add, and continue to stir
Mix 1 hour, be placed in heat exchanger, stand cooling, obtain well mixed phase-changing energy storage material.Measure a kind of composite phase change energy-storing
Material enthalpy is 292kJ/kg, and thermal conductivity factor is 0.9W/ mK.
Embodiment 3.
Sodium acetate trihydrate 100kg and zinc acetate 2.22kg are weighed, heating fusing is until solution keeps 65 DEG C of temperature, so
With 3000rpm speed, side is stirred in reaction vessel afterwards, and it is 1.4-1.5g/cm that side, which adds 3.33kg density,3Foam copper powder,
The premix of 0.85kg carboxymethyl celluloses and 0.33kg hydrophilic fumed silica, about half an hour add, and continue to stir
Mix 1 hour, be placed in heat exchanger, stand cooling, obtain well mixed phase-changing energy storage material.Measure a kind of composite phase change energy-storing
Material enthalpy is 286kJ/kg, and thermal conductivity factor is 1.2W/ mK.
The present invention is not limited to the embodiments described above, under other any Spirit Essences and principle without departing from the present invention
The change made, modification, replacement, combination, simplification, equivalent substitute mode is should be, be included in protection scope of the present invention
Within.
Claims (9)
- A kind of 1. composite phase-change energy storage material, it is characterised in that including material of main part, suspending agent, nucleator, enhanced thermal conduction agent, Wherein suspending agent includes the first suspending agent and the second suspending agent.
- A kind of 2. composite phase-change energy storage material according to claim 1, it is characterised in that each ingredient percent content For：Material of main part 86%-95.5%, suspending agent 2.5%-9%, nucleator 1%-2%, enhanced thermal conduction agent 1%-5%.
- 3. a kind of composite phase-change energy storage material according to claim 1, it is characterised in that described material of main part uses work The sodium acetate trihydrate of industry level more than 97%, mass fraction are 90% wt.
- 4. a kind of composite phase-change energy storage material according to claim 1, it is characterised in that the first described suspending agent is parent Water-based aerosil, mass fraction 2%-8%.
- 5. a kind of composite phase-change energy storage material according to claim 1, it is characterised in that the second described suspending agent is carboxylic Methylcellulose（CMC）, mass fraction 0.5%-1%.
- 6. a kind of composite phase-change energy storage material according to claim 1, it is characterised in that described nucleator is acetic acid Zinc, mass fraction 1%-2%.
- 7. a kind of composite phase-change energy storage material according to claim 1, it is characterised in that described enhanced thermal conduction agent is bubble Foam copper powder, mass fraction 1%-5%.
- 8. a kind of composite phase-change energy storage material according to claim 7, it is characterised in that described foam copper powder, density For 1.4-1.5g/cm3。
- 9. a kind of preparation method for preparing a kind of composite phase-change material as described in any claims of right 2-9, its feature exist In step is：（1）Material of main part sodium acetate trihydrate, zinc acetate are mixed in proportion, obtain mixing material；（2）By phase transformation mixing material heating fusing until solution keeps 65 DEG C of temperature, then existed with 2000-3000rpm speed Side is stirred in reaction vessel, while being proportionally added into foam copper powder, carboxymethyl cellulose（CMC）With hydrophilic fumed silica Premix, about half an hour add, and continue stirring 1 hour, static cooling, obtain well mixed phase-changing energy storage material.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108251068A (en) * | 2018-02-01 | 2018-07-06 | 四川微松新材料有限公司 | A kind of 2-8 DEG C of composite phase-change material and preparation method thereof |
| CN108264657A (en) * | 2018-02-01 | 2018-07-10 | 浙江科技学院 | A kind of -11 DEG C of nontoxic Phase Change Materials on Storing Energy and preparation method thereof |
| CN108359410A (en) * | 2018-02-01 | 2018-08-03 | 浙江微松冷链科技有限公司 | - 18 DEG C of common Phase Change Materials on Storing Energy of one kind and preparation method thereof |
| CN108865073A (en) * | 2018-06-05 | 2018-11-23 | 北京华厚能源科技有限公司 | A kind of composite phase-change energy storage material and preparation method thereof |
| CN110079278A (en) * | 2019-04-30 | 2019-08-02 | 国电南瑞科技股份有限公司 | A kind of compound hydrated salt phase-change heat-storage material of high thermal conductivity and preparation method thereof |
| CN110878198A (en) * | 2018-09-06 | 2020-03-13 | 陕西久维电力工程有限公司 | Phase-change material for storing solar heat and preparation method and application thereof |
| CN111518520A (en) * | 2018-12-30 | 2020-08-11 | 纯钧新材料(深圳)有限公司 | Composition as coolant and method for preparing same |
| CN112940685A (en) * | 2019-12-10 | 2021-06-11 | 强野机械科技(上海)有限公司 | Phase-change energy storage material and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101186806A (en) * | 2007-12-10 | 2008-05-28 | 中国科学院广州能源研究所 | Phase transformation heat accumulating material |
| CN101418209A (en) * | 2008-11-21 | 2009-04-29 | 中国科学院广州能源研究所 | Inorganic combined phase-change material for heat storage |
| CN103666381A (en) * | 2013-12-12 | 2014-03-26 | 江苏启能新能源材料有限公司 | Phase-change energy-storage material |
| CN106753259A (en) * | 2016-11-25 | 2017-05-31 | 贺迈新能源科技（上海）有限公司 | The heat accumulating and preparation method of a kind of low transformation temperature |
-
2017
- 2017-08-14 CN CN201710692178.0A patent/CN107446553A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101186806A (en) * | 2007-12-10 | 2008-05-28 | 中国科学院广州能源研究所 | Phase transformation heat accumulating material |
| CN101418209A (en) * | 2008-11-21 | 2009-04-29 | 中国科学院广州能源研究所 | Inorganic combined phase-change material for heat storage |
| CN103666381A (en) * | 2013-12-12 | 2014-03-26 | 江苏启能新能源材料有限公司 | Phase-change energy-storage material |
| CN106753259A (en) * | 2016-11-25 | 2017-05-31 | 贺迈新能源科技（上海）有限公司 | The heat accumulating and preparation method of a kind of low transformation temperature |
Non-Patent Citations (1)
| Title |
|---|
| 饶忠浩等: "《储能技术概论》", 31 January 2017, 中国矿业大学出版社 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108251068A (en) * | 2018-02-01 | 2018-07-06 | 四川微松新材料有限公司 | A kind of 2-8 DEG C of composite phase-change material and preparation method thereof |
| CN108264657A (en) * | 2018-02-01 | 2018-07-10 | 浙江科技学院 | A kind of -11 DEG C of nontoxic Phase Change Materials on Storing Energy and preparation method thereof |
| CN108359410A (en) * | 2018-02-01 | 2018-08-03 | 浙江微松冷链科技有限公司 | - 18 DEG C of common Phase Change Materials on Storing Energy of one kind and preparation method thereof |
| CN108865073A (en) * | 2018-06-05 | 2018-11-23 | 北京华厚能源科技有限公司 | A kind of composite phase-change energy storage material and preparation method thereof |
| CN110878198A (en) * | 2018-09-06 | 2020-03-13 | 陕西久维电力工程有限公司 | Phase-change material for storing solar heat and preparation method and application thereof |
| CN110878198B (en) * | 2018-09-06 | 2021-05-18 | 陕西久维电力工程有限公司 | Phase-change material for storing solar heat and preparation method and application thereof |
| CN111518520A (en) * | 2018-12-30 | 2020-08-11 | 纯钧新材料(深圳)有限公司 | Composition as coolant and method for preparing same |
| CN110079278A (en) * | 2019-04-30 | 2019-08-02 | 国电南瑞科技股份有限公司 | A kind of compound hydrated salt phase-change heat-storage material of high thermal conductivity and preparation method thereof |
| CN112940685A (en) * | 2019-12-10 | 2021-06-11 | 强野机械科技(上海)有限公司 | Phase-change energy storage material and preparation method thereof |
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Application publication date: 20171208 |