CN108485611A - A kind of phase change heat storage material and preparation method thereof - Google Patents
A kind of phase change heat storage material and preparation method thereof Download PDFInfo
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- CN108485611A CN108485611A CN201810598104.5A CN201810598104A CN108485611A CN 108485611 A CN108485611 A CN 108485611A CN 201810598104 A CN201810598104 A CN 201810598104A CN 108485611 A CN108485611 A CN 108485611A
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- phase change
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- 230000008859 change Effects 0.000 title claims abstract description 41
- 238000005338 heat storage Methods 0.000 title claims abstract description 32
- 239000011232 storage material Substances 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 22
- CKRORYDHXIRZCH-UHFFFAOYSA-N phosphoric acid;dihydrate Chemical compound O.O.OP(O)(O)=O CKRORYDHXIRZCH-UHFFFAOYSA-N 0.000 claims abstract description 21
- 235000017281 sodium acetate Nutrition 0.000 claims abstract description 20
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 19
- BDKLKNJTMLIAFE-UHFFFAOYSA-N 2-(3-fluorophenyl)-1,3-oxazole-4-carbaldehyde Chemical compound FC1=CC=CC(C=2OC=C(C=O)N=2)=C1 BDKLKNJTMLIAFE-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229940087562 sodium acetate trihydrate Drugs 0.000 claims abstract description 18
- 238000004781 supercooling Methods 0.000 claims abstract description 9
- 238000005538 encapsulation Methods 0.000 claims abstract description 7
- 150000003839 salts Chemical class 0.000 claims abstract description 5
- 239000000470 constituent Substances 0.000 claims abstract 2
- 239000007788 liquid Substances 0.000 claims description 18
- 239000002994 raw material Substances 0.000 claims description 18
- 230000007704 transition Effects 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 239000002562 thickening agent Substances 0.000 claims description 4
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 3
- 230000036571 hydration Effects 0.000 claims description 3
- 238000006703 hydration reaction Methods 0.000 claims description 3
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 239000001632 sodium acetate Substances 0.000 claims description 2
- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 claims 1
- 235000008434 ginseng Nutrition 0.000 claims 1
- 239000002667 nucleating agent Substances 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 7
- 238000005191 phase separation Methods 0.000 abstract description 7
- 238000009825 accumulation Methods 0.000 abstract description 6
- 239000003795 chemical substances by application Substances 0.000 abstract description 6
- 239000000654 additive Substances 0.000 abstract description 4
- 230000000996 additive effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- BDKZHNJTLHOSDW-UHFFFAOYSA-N [Na].CC(O)=O Chemical compound [Na].CC(O)=O BDKZHNJTLHOSDW-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a kind of phase change heat storage materials and preparation method thereof, phase change heat storage material of the present invention is a kind of inorganic hydrated salt composite phase change heat-accumulation material, and the constituent of the heat-storing material includes at least sodium acetate trihydrate, ten phosphate dihydrate trisodiums and polyacrylamide.For the phase change heat storage material of the present invention by the way that after additive agent modified, composite material has smaller degree of supercooling, and latent heat of phase change is big, stability is high, eliminates phenomenon of phase separation, and preparation process is simple, convenient for encapsulation and production.
Description
Technical field
The present invention relates to heat-storing material fields, more particularly, to a kind of phase change heat storage material and preparation method thereof.
Background technology
Heat storage technology is the important technology for improving efficiency of energy utilization and environmental protection, and can be used for solving thermal energy needs for giving
The contradiction for seeking mismatch is built in the recycling and industry of Solar use, electric power " peak load shifting ", waste heat and waste heat with civilian
It builds and is with a wide range of applications with the energy saving equal fields of air-conditioning.Phase-transition heat-storage is absorbed or is put in phase transition process using substance
The principle for going out latent heat of phase change carries out energy storage and release, using unit mass (volume) latent heat when phase change heat storage material phase transformation,
Amount of stored heat is very big, swift and violent for the research of phase change heat storage material and application development in recent years.
Phase change heat storage material can be divided into organic, inorganic and mixing class phase transformation heat-storing material；Organic phase-change heat-storing material
Performance is relatively stablized, and almost without supercooling and phenomenon of phase separation, but the disadvantage is that latent heat of phase change is relatively low, and material density is smaller, thus
It is smaller to cause organic phase-change heat-storing material unit volume amount of stored heat, therefore organic phase-change heat-storing material is in unit volume amount of stored heat
Aspect advantage unobvious.Inorganic-phase variable heat-storing material has higher unit volume amount of stored heat and good thermal conductivity, lacks
Point is is also easy to produce supercooling and phase separation, if supercooling and problem of phase separation, inorganic-phase variable accumulation of heat material can be solved by additive
There is material fairly obvious advantage, accumulation of heat related industry also can therefore be developed.
Currently, in factory in order to collect in movable heating equipment used in discarded waste heat, eight water hydroxides are generally used
Barium is as phase change heat storage material.Although it has very high latent heat of phase change, its fatal disadvantage is its toxicity, once it lets out
Dew directly affects the safety of system.In this case, it is big, nontoxic to develop a kind of latent heat of phase change, while degree of supercooling is small, stablizes
Property it is high, it is particularly important that the phase change heat storage material without phase separation is used for a long time.
Invention content
The present invention is to overcome the above situation insufficient, it is desirable to provide a kind of technical solution that can be solved the above problems.
A kind of phase change heat storage material and preparation method thereof, phase change heat storage material of the present invention is a kind of inorganic hydrated salt
Composite phase change heat-accumulation material, the heat-storing material are at least made of sodium acetate trihydrate, ten phosphate dihydrate trisodiums and polyacrylamide,
Its brief preparation process is as follows：
S1, raw material selection：Selection includes at least including sodium acetate trihydrate, ten phosphate dihydrate trisodiums and polyacrylamide
Raw material of the substance as phase change heat storage material, wherein sodium acetate trihydrate as basis material, ten phosphate dihydrate trisodiums be used as at
Core agent, polyacrylamide is as thickener；
S2, raw material mixing：At least by weight percentage respectively 91.5%~98%, 0.5%~5.5% and 0.5%~
3% ratio weighs sodium acetate trihydrate, ten phosphate dihydrate trisodiums and polyacrylamide, and then finely ground rear mixing is equal in mortar
It is even；
S3, raw material encapsulation：Mixture is heated by the hot water more than phase transition temperature through heat exchanger, keeps each component complete
Running down becomes colloidal liquid, then is injected into container after colloidal liquid is stirred evenly, after colloidal liquid is cooled to room temperature
Sealing container.
As a further solution of the present invention：In the step S1, quality-screening is carried out to selected raw material, wherein three water
The quality requirements for closing sodium acetate are active principle content 98~99%, and the quality requirements of ten phosphate dihydrate trisodiums contain for active principle
The quality requirements of amount 96~98%, polyacrylamide are active principle content 99%.
As a further solution of the present invention：In the step S2, sodium acetate trihydrate, ten phosphate dihydrate trisodiums and poly- third
Acrylamide is ground to the particle that particle diameter is less than 40 mesh of granularity, i.e. sodium acetate trihydrate, ten phosphate dihydrate trisodiums and poly- third
Particle diameter after acrylamide grinding is respectively less than 0.42mm.
As a further solution of the present invention：In the step S3, it is injected into container after colloidal liquid is stirred evenly
When, the volume for injecting colloidal liquid is the 95% of container volume, and 5% expansion space is stayed in container, waits for that colloidal liquid cools down
Sealing container after to room temperature.
As a further solution of the present invention：The major parameter of finished product includes that latent heat of phase change value is 235~265kJ/
Kg, phase transition temperature are 52~56.5 DEG C, and degree of supercooling is less than 1.4 DEG C.
Compared with prior art, the beneficial effects of the invention are as follows：
The phase change heat storage material of the present invention is by the way that after additive agent modified, composite material has smaller degree of supercooling, phase transformation latent
Hot big, stability is high, eliminates phenomenon of phase separation, and preparation process is simple, convenient for encapsulation and production.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
In the embodiment of the present invention 1, a kind of phase change heat storage material and preparation method thereof, phase change heat storage material of the present invention
It is a kind of inorganic hydrated salt composite phase change heat-accumulation material, the heat-storing material is at least by sodium acetate trihydrate, ten phosphate dihydrate trisodiums
It is formed with polyacrylamide, specific preparation process is as follows：
S1, raw material selection：Selection includes at least including sodium acetate trihydrate, ten phosphate dihydrate trisodiums and polyacrylamide
Raw material of the substance as phase change heat storage material, wherein sodium acetate trihydrate as basis material, ten phosphate dihydrate trisodiums be used as at
Core agent, polyacrylamide is as thickener；
S2, raw material mixing：The ratio for being at least by weight percentage respectively 97%, 1% and 2% weighs three hydration acetic acid
Sodium, ten phosphate dihydrate trisodiums and polyacrylamide, it is then finely ground rear uniformly mixed in mortar；
S3, raw material encapsulation：Mixture is heated by the hot water more than phase transition temperature through heat exchanger, keeps each component complete
Running down becomes colloidal liquid, then is injected into container after colloidal liquid is stirred evenly, after colloidal liquid is cooled to room temperature
Sealing container.
In the embodiment of the present invention 2, a kind of phase change heat storage material and preparation method thereof, phase change heat storage material of the present invention
It is a kind of inorganic hydrated salt composite phase change heat-accumulation material, the heat-storing material is at least by sodium acetate trihydrate, ten phosphate dihydrate trisodiums
It is formed with polyacrylamide, specific preparation process is as follows：
S1, raw material selection：Selection includes at least including sodium acetate trihydrate, ten phosphate dihydrate trisodiums and polyacrylamide
Raw material of the substance as phase change heat storage material, wherein sodium acetate trihydrate as basis material, ten phosphate dihydrate trisodiums be used as at
Core agent, polyacrylamide is as thickener；
S2, raw material mixing：The ratio for being at least by weight percentage respectively 93.5%, 5.5% and 1% weighs three hydration vinegar
Sour sodium, ten phosphate dihydrate trisodiums and polyacrylamide, it is then finely ground rear uniformly mixed in mortar；
S3, raw material encapsulation：Mixture is heated by the hot water more than phase transition temperature through heat exchanger, keeps each component complete
Running down becomes colloidal liquid, then is injected into container after colloidal liquid is stirred evenly, after colloidal liquid is cooled to room temperature
Sealing container.
The present invention operation principle be：
The phase change heat storage material of the present invention is by the way that after additive agent modified, composite material has smaller degree of supercooling, phase transformation latent
Hot big, stability is high, eliminates phenomenon of phase separation, and preparation process is simple, convenient for encapsulation and production.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.
Claims (5)
1. a kind of phase change heat storage material and preparation method thereof, phase change heat storage material of the present invention is that a kind of inorganic hydrated salt is multiple
Phase change heat storage material is closed, the constituent of the heat-storing material includes at least sodium acetate trihydrate, ten phosphate dihydrate trisodiums and poly- third
Acrylamide, which is characterized in that its specific preparation process is as follows：
S1, raw material selection：Selection includes at least the substance including sodium acetate trihydrate, ten phosphate dihydrate trisodiums and polyacrylamide
As the raw material of phase change heat storage material, wherein sodium acetate trihydrate as basis material, ten phosphate dihydrate trisodiums as nucleating agent,
Polyacrylamide is as thickener；
S2, raw material mixing：At least it is respectively 91.5%~98%, 0.5%~5.5% and 0.5%~3% by weight percentage
Ratio weighs sodium acetate trihydrate, ten phosphate dihydrate trisodiums and polyacrylamide, then finely ground rear uniformly mixed in mortar；
S3, raw material encapsulation：Mixture is heated by the hot water more than phase transition temperature through heat exchanger, keeps each component completely molten
Chemical conversion is colloidal liquid, then is injected into container after colloidal liquid is stirred evenly, and is sealed after colloidal liquid is cooled to room temperature
Container.
2. phase change heat storage material according to claim 1 and preparation method thereof, which is characterized in that right in the step S1
Selected raw material carries out quality-screening, and the wherein quality requirements of sodium acetate trihydrate are active principle content 98~99%, 12
The quality requirements of water tertiary sodium phosphate are active principle content 96~98%, and the quality requirements of polyacrylamide are active principle content
99%.
3. phase change heat storage material according to claim 1 and preparation method thereof, which is characterized in that in the step S2, three
Hydration sodium acetate, ten phosphate dihydrate trisodiums and polyacrylamide are ground to the particle that particle diameter is less than 40 mesh of granularity.
4. phase change heat storage material according to claim 1 and preparation method thereof, which is characterized in that, will in the step S3
When colloidal liquid is injected into after stirring evenly in container, the volume for injecting colloidal liquid is the 95% of container volume, in container
The expansion space for staying 5%, the sealing container after colloidal liquid is cooled to room temperature.
5. phase change heat storage material according to claim 1 and preparation method thereof, which is characterized in that the main ginseng of finished product
Number includes that latent heat of phase change value is 235~265kJ/kg, and phase transition temperature is 52~56.5 DEG C, and degree of supercooling is less than 1.4 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810598104.5A CN108485611A (en) | 2018-06-12 | 2018-06-12 | A kind of phase change heat storage material and preparation method thereof |
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| CN201810598104.5A CN108485611A (en) | 2018-06-12 | 2018-06-12 | A kind of phase change heat storage material and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370534A (en) * | 2018-11-21 | 2019-02-22 | 江苏昂彼特堡能源科技有限公司 | A kind of phase change heat storage material and preparation method thereof |
| CN110591654A (en) * | 2019-09-29 | 2019-12-20 | 新奥石墨烯技术有限公司 | Phase-change heat storage composite material and preparation method thereof |
| CN111117572A (en) * | 2019-12-05 | 2020-05-08 | 珠海格力电器股份有限公司 | Composite phase-change material and preparation method thereof |
| CN112284167A (en) * | 2019-07-24 | 2021-01-29 | 清科聚创(北京)科技有限公司 | Phase-change energy storage material and preparation method thereof |
| CN113881405A (en) * | 2021-10-19 | 2022-01-04 | 佛山市顺德区美的洗涤电器制造有限公司 | Phase-change material composition, phase-change material, and preparation method and application thereof |
| CN115449351A (en) * | 2022-10-11 | 2022-12-09 | 湖南工程学院 | Hydrated salt composite phase-change material and preparation method and application thereof |
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| 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 |
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2018
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370534A (en) * | 2018-11-21 | 2019-02-22 | 江苏昂彼特堡能源科技有限公司 | A kind of phase change heat storage material and preparation method thereof |
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| CN110591654A (en) * | 2019-09-29 | 2019-12-20 | 新奥石墨烯技术有限公司 | Phase-change heat storage composite material and preparation method thereof |
| CN111117572A (en) * | 2019-12-05 | 2020-05-08 | 珠海格力电器股份有限公司 | Composite phase-change material and preparation method thereof |
| CN113881405A (en) * | 2021-10-19 | 2022-01-04 | 佛山市顺德区美的洗涤电器制造有限公司 | Phase-change material composition, phase-change material, and preparation method and application thereof |
| CN115449351A (en) * | 2022-10-11 | 2022-12-09 | 湖南工程学院 | Hydrated salt composite phase-change material and preparation method and application thereof |
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Effective date of registration: 20190812 Address after: 226200 No. 500 Linyang Road, Qidong Economic Development Zone, Nantong City, Jiangsu Province Applicant after: JIANGSU UNBEATABLE ENERGY TECHNOLOGY Co.,Ltd. Address before: 226200 No. 500 Linyang Road, Qidong Economic Development Zone, Nantong City, Jiangsu Province Applicant before: JIANGSU STARCLOUD IOT CO.,LTD. |
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Application publication date: 20180904 |