CN103468218B - A kind of Inorganic nano phase change energy storage material and preparation method thereof - Google Patents
A kind of Inorganic nano phase change energy storage material and preparation method thereof Download PDFInfo
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- CN103468218B CN103468218B CN201310387329.3A CN201310387329A CN103468218B CN 103468218 B CN103468218 B CN 103468218B CN 201310387329 A CN201310387329 A CN 201310387329A CN 103468218 B CN103468218 B CN 103468218B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 49
- 239000011232 storage material Substances 0.000 title claims abstract description 43
- 230000008859 change Effects 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 16
- 150000004645 aluminates Chemical class 0.000 claims abstract description 15
- PQLVXDKIJBQVDF-UHFFFAOYSA-N acetic acid;hydrate Chemical compound O.CC(O)=O PQLVXDKIJBQVDF-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920001971 elastomer Polymers 0.000 claims abstract description 9
- 239000011734 sodium Substances 0.000 claims abstract description 9
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000741 silica gel Substances 0.000 claims abstract description 7
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 7
- 230000009466 transformation Effects 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 5
- 230000007062 hydrolysis Effects 0.000 claims abstract description 5
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 15
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 13
- 239000000047 product Substances 0.000 claims description 9
- 230000018044 dehydration Effects 0.000 claims description 8
- 238000006297 dehydration reaction Methods 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 8
- 229960004756 ethanol Drugs 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000004821 distillation Methods 0.000 claims description 5
- 239000000706 filtrate Substances 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000002775 capsule Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000005191 phase separation Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 2
- PNNIIULEYDEVIV-UHFFFAOYSA-N acetic acid;sodium;hydrate Chemical compound O.[Na].CC(O)=O PNNIIULEYDEVIV-UHFFFAOYSA-N 0.000 claims description 2
- -1 and tetraethoxy Chemical class 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000004566 building material Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- DGPIGKCOQYBCJH-UHFFFAOYSA-M sodium;acetic acid;hydroxide Chemical compound O.[Na+].CC([O-])=O DGPIGKCOQYBCJH-UHFFFAOYSA-M 0.000 claims 2
- 239000011162 core material Substances 0.000 abstract description 8
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 239000012071 phase Substances 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 3
- 239000002105 nanoparticle Substances 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- YIXJRHPUWRPCBB-UHFFFAOYSA-N magnesium nitrate Chemical compound [Mg+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YIXJRHPUWRPCBB-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 229960004249 sodium acetate Drugs 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Substances [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
A kind of Inorganic nano phase change energy storage material of the present invention and preparation method thereof, belong to building low-carbon energy-saving technical field, the nano level silica gel obtained with tetraethoxy and Aluminate hydrolysis, aluminum oxide powder make inorganic nano rubber powder wall material, with nanometer 3 water acetic acid sodium NaCH
3cOO3H
2o is core, and with the Inorganic nano phase change energy storage material of inorganic nano rubber powder wall material encapsulating nanometer core material, transformation temperature 58 DEG C, should make drying room phase-changing energy storage material.
Description
Technical field
The invention belongs to building low-carbon energy-saving technical field, specifically a kind of Inorganic nano phase change energy storage material and preparation method thereof.
Background technology
In physical environment, every day produces a large amount of heats, as: sun power, animal body loses heat, the combustion heat, heat of friction, object running heat etc.Phase-changing energy storage material is in the process itself undergone phase transition, and absorbs the material of these heats, and when needed to Environment release, and reach control ambient temperature and energy-conservation object.Can be divided into by its chemical constitution: organic phase change energy storage material, combined phase-change energy storage material and Inorganic phase change energy storage material.Organic phase change energy storage material has the advantages such as chemical stability is good, suitable phase transition temperature, nothing are separated, but organic phase change energy storage material thermal conductivity is lower, causes its heat transfer property in the application of accumulator system poor, thus reduces the usefulness of system; Combined phase-change energy storage material has advantage adjustable within the specific limits, but easily aging, after circulation several times, just lose energy storage effect; Inorganic phase change energy storage material has that use range is wide, thermal conductivity is large, heat of fusion is compared with advantages such as large, storage heat density is large, phase transformation volume change is little, toxicity is little, low prices, firmly get people's favor, therefore the Synthesis and applications of this kind of inorganic energy storage material is more and more in patent application, as: " a kind of preparation technology of organic salt/ceramic base high temperature phase-changing energy-storing material ", application number 200510120619.7; " a kind of Inorganic phase change energy storage material ", application number 201210037753; " a kind of preparation technology of organic salt/ceramic base high temperature phase-changing energy-storing material ", application number CN200810065301.7; " a kind of high-performance medium-temperature Inorganic phase change energy storage material and preparation method thereof ", application number 201210557115 etc.Usually there is cold, non-homogeneous melting and the phenomenon such as to be separated in Inorganic phase change energy storage material, cause should energy storage time not energy storage, should discharge can time do not discharge can, there is obvious layering in system, the large lossy of enthalpy of phase change.In order to solve the problem, contriver puts forward various plans, and as " a kind of heat-storage medium and uses thereof ", application number 200610104583.8, proposes magnesium nitrate, the salt water chemical compound of magnesium chloride and water composition eutectic, " a kind of Inorganic phase change energy storage material ", application number 201210037753.0, adopts and add nucleator and dispersion agent in inorganic salt hydrate, " a kind of preparation method of inorganic hydrous salt phase transition energy-storing material ", application number 200810065301.7, adopt in inorganic salt hydrate, add anti-cryogen sodium tetraborate excessively, although these methods have some effects, but be also confined to some system, certain limitation is there is at phase-changing energy storage material choice and operation, inventor studies discovery, inorganic salt hydrate phase-changing energy storage material is distributed to nano_scale particle, be rolled into capsule of nano, the mistake cold-peace problem of phase separation of phase-changing energy storage material can be solved well, contriver develops a series of nano inorganic phase-changing energy storage material according to this discovery and design, the present invention is exactly one of this Inorganic phase change energy storage material of exploitation.
Summary of the invention
Inorganic salt hydrate phase-changing energy storage material is the object of the invention is to be distributed to nano_scale particle, and be wrapped in capsule of nano, overcome the mistake cold-peace problem of phase separation of phase-changing energy storage material, while developing a series of Inorganic phase change energy storage material unlike the prior art, the temperature of inorganic salt hydrate phase-changing energy storage material can also be controlled, meet different insulation, heat insulation, energy storage, temperature adjustment object is to the requirement of different inorganic phase-changing material performance.
A kind of Inorganic nano phase change energy storage material of the present invention, make wall material with inorganic nano rubber powder, core is made with nanometer salt-free water compound, encapsulate nano inorganic salt hydrate core by nanometer rubber powder wall material and form a kind of inorganic nano energy storage material, indication inorganic nano rubber powder refers to the silica gel, the aluminum oxide powder that are hydrolyzed by tetraethoxy and Aluminate, and tetraethoxy, Aluminate folding synthesis oxide meets SiO
2/ Al
2o
3ratio between molecule is 1: 0.5, and indication nano inorganic salt hydrate refers to sodium-acetate hydrate NaCH
3cOO3H
2o; The weight ratio of wall material and core is 1: 1, product yardstick 58 nanometer, transformation temperature 58 DEG C, and cooling curve proves without crossing cold-peace problem of phase separation; Storage density 320J/g; Capsule stable in properties, after carrying out the circulation of 80 high temperature trickles and 25 heating, freeze cycle, matter loss is less than 1%, does not find that cold-peace was separated.
The preparation method of a kind of Inorganic nano phase change energy storage material of the present invention follows these steps to processing successively:
(1) technical grade 3 water acetic acid sodium hydrate NaCH is taken
3cOO3H
2o is heated to 60 DEG C, is mixed with saturated aqueous solution, adds the dehydrated alcohol that diploid is long-pending, stirs and be quenched to 0-10 DEG C, obtaining nano-scale phase-changing energy storage material sodium-acetate hydrate NaCH
3cOO3H
2o precipitates;
(2) tetraethoxy, Aluminate will be taken respectively, mol ratio, tetraethoxy: Aluminate=1: 0.5;
(3) respectively tetraethoxy and Aluminate are added step (1), tetraethoxy and Aluminate weight sum and 3 water acetic acid sodium NaCH
3cOO3H
2o weight ratio is 1: 1;
(4) step (3) mixture is carried out stirring 2 hours with 600-1000r/min rotating speed, make the nanometer wall material silica gel of hydrolysis, aluminum oxide powder by nano level 3 water acetic acid sodium NaCH
3cOO3H
2o wraps up;
(5) centrifuge dehydration, dehydration filtrate Distillation recovery ethanol.
Filtrate Distillation recovery ethanol after above-mentioned centrifuge dehydration.
According to parameter provided by the invention for using when building materials design.
Product of the present invention is mainly used in heat insulation, the lagging material of building drying room.
The principle of the invention is with nano grade inorganic phase-changing energy storage material 3 water acetic acid sodium NaCH
3cOO3H
2o is core, and the nano level silica gel obtained using tetraethoxy and Aluminate hydrolysis, aluminum oxide powder, as wall material, are encapsulated nanometer core material inorganic salt hydrate phase-changing energy storage material by nanometer rubber powder wall material, overcome phase-changing energy storage material 3 water acetic acid sodium NaCH
3cOO3H
2excessively cold, the layering that O deposits and the problems such as to be separated, make it to become stable phase-changing energy storage material, and the feature that the present invention utilizes sodium-acetate to dissolve to vary with temperature large and solution water to be insoluble to ethanol prepares nano level sodium-acetate core.For in building heat preservation, heat insulation, energy storage, temperature adjustment, sound insulation.
Invention effect:
1. product transformation temperature of the present invention 58 DEG C, storage density 320J/g, nontoxic, corrosion-free, be particularly suitable for house insulation, heat insulation, energy storage, temperature adjustment.
2. Product Process of the present invention is simple, and cost inferior quality is easily controlled, stable.
3. Reusability is without being separated.
4. the present invention is by rapid reaction, inorganic salt hydrate is dispersed into nano_scale particle rapidly, and is wrapped up by aluminum phosphate, inorganic salt crystal water not easily scatters and disappears, particulate molecular motion suffers restraints, and effectively controls the phenomenon that cold-peace is separated, and is a kind of well phase-changing energy storage material.
Accompanying drawing explanation
Fig. 1 is product of the present invention fusing--freezing curve, from figure, and product transformation temperature of the present invention 58 DEG C.
Embodiment
(1) technical grade acetic acid sodium hydrate NaCH is taken
3cOO3H
2o 500g, water 360g, be heated to 60 DEG C, makes to dissolve completely, add 720ml dehydrated alcohol, be cooled to 0-10 DEG C rapidly, obtain nano-scale phase-changing energy storage material, NaCH
3cOO3H
2o core precipitates;
(2) will take tetraethoxy 388g respectively, aluminic acid trimethyl 112g, tetraethoxy and Aluminate mol ratio are 1: 0.5;
(3) respectively tetraethoxy and aluminic acid trimethyl are added step (1), tetraethoxy and aluminic acid trimethyl weight sum and 3 water acetic acid sodium NaCH
3cOO3H
2o weight ratio is 1: 1;
(4) step (3) mixture is carried out stirring 2 hours with 600-1000r/min rotating speed, make the nanometer wall material silica gel of hydrolysis, aluminum oxide powder by nano level 3 water acetic acid sodium NaCH
3cOO3H
2o wraps up;
(5) centrifuge dehydration, dehydration filtrate Distillation recovery ethanol, solid drying is product.
The above, it is only preferred embodiment of the present invention, not any type of restriction is done to the present invention, any disengaging technical solution of the present invention content, according to technical spirit of the present invention, any simple modification, equivalent variations and modification are done to above embodiment, all belong in the scope of technical solution of the present invention.
Claims (4)
1. an Inorganic nano phase change energy storage material, it is characterized in that making wall material with inorganic nano rubber powder, core is made with nano inorganic salt hydrate, encapsulate nano inorganic salt hydrate core by nanometer rubber powder wall material and process a kind of inorganic nano energy storage material, indication inorganic nano rubber powder refers to the silica gel, the aluminum oxide powder that are hydrolyzed by tetraethoxy and Aluminate, and tetraethoxy, Aluminate folding synthesis oxide meets SiO
2/ Al
2o
3ratio between molecule is 1: 0.5, and indication nano inorganic salt hydrate refers to sodium-acetate hydrate NaCH
3cOO3H
2o; The weight ratio of wall material and core is 1: 1, product yardstick 58 nanometer, transformation temperature 58 DEG C, and cooling curve proves without crossing cold-peace problem of phase separation; Storage density 320J/g; Capsule stable in properties, after carrying out the circulation of 80 high temperature trickles and 25 heating, freeze cycle, matter loss is less than 1%, does not find that cold-peace was separated, and described working method follows these steps to process:
(1) technical grade acetic acid sodium hydrate NaCH is taken
3cOO3H
2o is heated to 60 DEG C, is mixed with saturated aqueous solution, adds the dehydrated alcohol that diploid is long-pending, stirs and be quenched to 0-10 DEG C, obtaining nano-scale phase-changing energy storage material sodium-acetate hydrate NaCH
3cOO3H
2o precipitates;
(2) tetraethoxy, Aluminate is taken respectively, mol ratio tetraethoxy: Aluminate=1: 0.5;
(3) respectively tetraethoxy and Aluminate are added in step (1), tetraethoxy and Aluminate weight sum and 3 water acetic acid sodium NaCH
3cOO3H
2o weight ratio is 1: 1;
(4) step (3) mixture is carried out stirring 2 hours with 600-1000r/min rotating speed, make the nanometer wall material silica gel of hydrolysis, aluminum oxide powder by nano level 3 water acetic acid sodium NaCH
3cOO3H
2o wraps up;
(5) centrifuge dehydration, dehydration filtrate Distillation recovery ethanol, solid drying is product.
2. a kind of Inorganic nano phase change energy storage material according to claim 1, is characterized in that the filtrate Distillation recovery ethanol after centrifuge dehydration.
3. a kind of Inorganic nano phase change energy storage material according to claim 1 is in the application of building materials design aspect.
4. application according to claim 3, is characterized in that drying room is heat insulation, lagging material for building.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310387329.3A CN103468218B (en) | 2013-08-30 | 2013-08-30 | A kind of Inorganic nano phase change energy storage material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310387329.3A CN103468218B (en) | 2013-08-30 | 2013-08-30 | A kind of Inorganic nano phase change energy storage material and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN103468218A CN103468218A (en) | 2013-12-25 |
| CN103468218B true CN103468218B (en) | 2015-10-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6754029B2 (en) * | 2016-06-30 | 2020-09-09 | 北川工業株式会社 | Manufacturing method of heat storage device, manufacturing method of pellet type heat storage material, pellet type heat storage material and heat storage device |
| CN109674085B (en) * | 2017-10-18 | 2022-04-12 | 湖南中烟工业有限责任公司 | Heat storage capsule for reducing cigarette mainstream smoke temperature and preparation and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6270836B1 (en) * | 1998-07-27 | 2001-08-07 | Frisby Technologies, Inc. | Gel-coated microcapsules |
| CN102311720A (en) * | 2010-07-02 | 2012-01-11 | 中国科学院大连化学物理研究所 | Phase-change energy storage capsule and preparation method thereof |
-
2013
- 2013-08-30 CN CN201310387329.3A patent/CN103468218B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6270836B1 (en) * | 1998-07-27 | 2001-08-07 | Frisby Technologies, Inc. | Gel-coated microcapsules |
| CN102311720A (en) * | 2010-07-02 | 2012-01-11 | 中国科学院大连化学物理研究所 | Phase-change energy storage capsule and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| J. Zhang et al.,.《In Situ Synthesis and Phase Change Properties of Na2SO4.10H2OSiO2 Solid Nanobowls toward Smart Heat Storage》.《The Journal of Physical Chemistry C》.2011,第115卷(第41期), * |
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