CN104357020B - A kind of nano modified inorganic room temperature phase-change heat accumulating and preparation method thereof - Google Patents
A kind of nano modified inorganic room temperature phase-change heat accumulating and preparation method thereof Download PDFInfo
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- CN104357020B CN104357020B CN201410556906.1A CN201410556906A CN104357020B CN 104357020 B CN104357020 B CN 104357020B CN 201410556906 A CN201410556906 A CN 201410556906A CN 104357020 B CN104357020 B CN 104357020B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000011232 storage material Substances 0.000 claims abstract description 27
- 238000005338 heat storage Methods 0.000 claims abstract description 25
- 238000003756 stirring Methods 0.000 claims abstract description 22
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000012764 mineral filler Substances 0.000 claims abstract description 11
- 230000008859 change Effects 0.000 claims abstract description 10
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 4
- HPTYUNKZVDYXLP-UHFFFAOYSA-N aluminum;trihydroxy(trihydroxysilyloxy)silane;hydrate Chemical group O.[Al].[Al].O[Si](O)(O)O[Si](O)(O)O HPTYUNKZVDYXLP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052621 halloysite Inorganic materials 0.000 claims description 6
- 239000002071 nanotube Substances 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000012986 modification Methods 0.000 claims description 4
- 230000004048 modification Effects 0.000 claims description 4
- 229960000892 attapulgite Drugs 0.000 claims description 3
- 229910052625 palygorskite Inorganic materials 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 239000012782 phase change material Substances 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 description 19
- 238000002474 experimental method Methods 0.000 description 17
- 239000012071 phase Substances 0.000 description 12
- 239000004566 building material Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 239000004035 construction material Substances 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000013019 agitation Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- KDQPSPMLNJTZAL-UHFFFAOYSA-L disodium hydrogenphosphate dihydrate Chemical compound O.O.[Na+].[Na+].OP([O-])([O-])=O KDQPSPMLNJTZAL-UHFFFAOYSA-L 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000001938 differential scanning calorimetry curve Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229910052816 inorganic phosphate Inorganic materials 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002023 wood Substances 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)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a kind of nano modified inorganic room temperature phase-change heat accumulating and preparation method thereof, the nano modified inorganic phase-change material is constituted by being modified with nano-mineral filler, inorganic bond aluminum phosphate, disodium hydrogen phosphate and water, and the mass ratio of each material is：5~7：3~5：20~40：1~3.Its preparation method is：By weight, 20 ~ 40 parts of disodium hydrogen phosphates are added in 1 ~ 3 part of water, under conditions of the stirring computer heating control system temperature be 30 80 DEG C be completely dissolved to disodium hydrogen phosphate after, continuation control heating-up temperature adds 5 ~ 7 parts under conditions of stirring and is modified with nano-mineral filler and 3 ~ 5 parts of aluminum phosphates, dispersed with stirring is uniform, and then cooling produces nano modified inorganic room temperature phase-change heat accumulating.The nano modified inorganic phase-change heat-storage material environmental protection of the present invention, impervious non-combustible, latent heat of phase change value height, preparation method simply, are easy to promote.
Description
Technical field
The invention belongs to energy-conserving and environment-protective Material Field, more particularly to a kind of nano modified inorganic room temperature phase-change heat accumulating and
Its preparation method.
Technical background
With increasingly sharpening for global energy crisis, seek new construction material to reduce building energy consumption, improve indoor ring
Border hot comfort, is the new problem that China's building materials field faces.Phase-changing energy storage material can be by the energy of certain forms specific
Under the conditions of be stored up, and discharged under given conditions, significantly reduce energy resource consumption, narrow the ripple of indoor temperature
Dynamic amplitude, improves indoor environment, is a kind of building material that building energy saving field has good development prospect.
Phase-changing energy storage material is incorporated into existing construction material, the building structure such as wall, floor, ceiling are made,
Construction material can be made to be maintained in suitable scope (20-30 DEG C).Therefore knot is gone along with sb. to guard him using phase-changing energy storage material as building
Structure, can not only greatly enhance the heat insulating function of building enclosure, improve the utilization rate of the energy, and be also equipped with following characteristics：①
Weaken the hot-fluid fluctuating range between Indoor environment and outdoor, delay action time, so as to reduce building heating, air-conditioning system
The Design cooling load of system, saves the energy；2. the heat storage capacity of wall is improved, building loading and temperature fluctuation is reduced, improves indoor
Environmental degree of comfort.
The species of phase-change material is a lot, and relatively inexpensive applicable phase-change heat-storage material is generally solid-liquid organic in building materials, its
Be mainly characterized by that phase transition temperature is proper, latent heat of phase change is larger, Volume Changes are small, but its there is also shortcoming：1. phase transition process
In have liquid phase generation, easily produce seepage the problem of；2. organic material has certain volatility and combustibility.On solving
State problem, be badly in need of working out the high inorganic phase-changing material of a kind of environmental protection, impervious non-combustible, potential heat value.
The content of the invention
The technical problems to be solved by the invention are that it is 20 to provide a kind of environmental protection, impervious non-combustible, phase transition temperature
~30 DEG C high latent heat room temperature composite phase-change heat-storage material and preparation method thereof.The preparation method technique is easy, is easy to promote, system
Standby obtained room temperature composite phase-change heat-storage material potential heat value is high.
In order to solve the above technical problems, the technical solution adopted in the present invention is as follows：
A kind of nano modified inorganic room temperature phase-change heat accumulating, it is characterised in that：It is by being modified with nano-mineral filler, nothing
Machine adhesive aluminum phosphate, disodium hydrogen phosphate and water are constituted, and the mass ratio of each material is：5~7：3~5：20~
40：1~3.
By such scheme, described modification is halloysite nanotubes, nano-attapulgite with nano-mineral filler or its is any
The mixture of ratio.
By such scheme, modified a diameter of 10-50nm with nano-mineral filler, length is 800-1000nm.
A kind of preparation method of nano modified inorganic room temperature phase-change heat accumulating, it is characterised in that：By weight, by 20
~40 parts of disodium hydrogen phosphates are added in 1~3 part of water, and computer heating control system temperature is 30-80 under conditions of stirring
After DEG C being completely dissolved to disodium hydrogen phosphate, continue to control heating-up temperature to add 5~7 parts under conditions of stirring and modified use
Nano-mineral filler and 3~5 parts of aluminum phosphates, dispersed with stirring are uniform, and then cooling produces nano modified inorganic room temperature phase-change heat accumulation
Material.
By such scheme, described heating-up temperature is 50 DEG C.
The nano modified inorganic room temperature phase-change heat accumulating of the present invention is mainly used in the regulation of indoor temperature, suitable for warm round the clock
The building construction temperature adjustment of poor larger area.Nano-mineral filler has that specific surface area is big, interlayer ion easily quilt in the present invention
The characteristics of exchange, this liquid that can not only adsorb phase transformation generation prevents seepage, while can also play a part of nucleator prevents phase
Become the degree of supercooling of material.The present invention using inorganic aluminum phosphate as adhesive is understood that nano-mineral can be improved by similar compatibility principle
The cohesive of filler and phase-change material, obtains phase-change heat-storage material of shaping.
The beneficial effects of the invention are as follows：Compared with existing phase-change heat-storage material, 1. phase-change heat-storage material of the invention is free of
Organic principle, is avoided that volatilization, burning of organic matter etc., toxic side effect is small, belongs to Green Product；2. phase transformation of the invention
Heat accumulating using with bigger serface, easy ion exchange nano-mineral as modified filler, can effectively prevent fluid seepage with
And the surfusion of phase-change material；3. phase-change heat-storage material of the invention improves composite wood using inorganic phosphate aluminium as adhesive
Expect the stability recycled；4. phase-change heat-storage material phase transition temperature of the invention is 20~30 DEG C, and the heat of transformation is big, is a kind of
High latent heat room temperature composite phase-change heat-storage material；5. preparation method is simple, is suitable for industrialized production and popularization.
Brief description of the drawings
Fig. 1 is the DSC curve of the room temperature composite phase-change heat-storage material prepared by embodiment 4, abscissa temperature
(DEG C) is temperature (DEG C), and ordinate Heat flow (mW) are heat flow (mW)；
Fig. 2 is the room temperature composite phase-change heat-storage material and check sample low temperature side and high temperature side both sides prepared by embodiment 3
Temperature variations figure.In figure：A experiment sample low temperature sides；B check sample low temperature sides；C experiment sample high temperature sides；D control samples
This high temperature side.
Embodiment
For a better understanding of the present invention, the content that the present invention is furture elucidated with reference to the accompanying drawings and examples, but this
The content of invention is not limited solely to the following examples；Also it is not construed as limitation of the present invention.
Embodiment 1：
20g disodium hydrogen phosphates and 1g water are added into reaction vessel, 50 DEG C are heated under agitation makes ten
Phosphate dihydrate disodium hydrogen is completely dissolved, and continues to control heating-up temperature to add 5g halloysite nanotubes and 3g phosphorus under conditions of stirring
Sour aluminium, room temperature is cooled to after stirring, and obtains nano modified inorganic room temperature composite phase-change heat-storage material.
Embodiment 2：
40g disodium hydrogen phosphates and 3g water are added into reaction vessel, 40 DEG C are heated under agitation makes ten
Phosphate dihydrate disodium hydrogen is completely dissolved, and continues to control heating-up temperature to add 7g halloysite nanotubes and 5g phosphorus under conditions of stirring
Sour aluminium, room temperature is cooled to after stirring, and obtains nano modified inorganic room temperature composite phase-change heat-storage material.
Embodiment 3：
30g disodium hydrogen phosphates and 2g water are added into reaction vessel, 50 DEG C are heated under agitation makes ten
Phosphate dihydrate disodium hydrogen is completely dissolved, and continuation control heating-up temperature adds 3g halloysite nanotubes, 3g under conditions of stirring and received
Rice concave convex rod and 4g aluminum phosphates, are cooled to room temperature after stirring, obtain nano modified inorganic room temperature composite phase-change heat-storage material.
Embodiment 4：
40g disodium hydrogen phosphates and 1g water are added into reaction vessel, 70 DEG C are heated under conditions of stirring makes
Disodium hydrogen phosphate is completely dissolved, and continues to control heating-up temperature to add 5g nano-attapulgites and 3g phosphorus under conditions of stirring
Sour aluminium, room temperature is cooled to after stirring, and obtains nano modified inorganic room temperature composite phase-change heat-storage material.
Embodiment 5：
20g disodium hydrogen phosphates and 3g water are added into reaction vessel, 60 DEG C are heated under conditions of stirring makes
Disodium hydrogen phosphate is completely dissolved, and continues to control heating-up temperature to add 7g nano-attapulgites and 5g phosphorus under conditions of stirring
Sour aluminium, room temperature is cooled to after stirring, and obtains nano modified inorganic room temperature composite phase-change heat-storage material.
The halloysite nanotubes that are used in above-described embodiment, nano-attapulgite material diameter are 10-50nm, and length is 800-
1000nm。
Nano modified inorganic room temperature composite phase-change heat-storage material prepared by embodiment 1-5, is produced using PE companies of the U.S.
Diamond power-type differential scanning calorimeters on detect its phase transition temperature and potential heat value, nano modification prepared by embodiment 1-5
Inorganic room temperature composite phase-change heat-storage material transformation temperature, the specific data of temperature potential heat value are listed in table 1, wherein prepared by embodiment 4
The DSC of room temperature composite phase change heat-storing building material is shown in Fig. 1.
Table 1
Room temperature composite phase change heat-storing building material prepared by embodiment 1-5 carries out wall thermal insulating experiment：Specific experiment mistake
Cheng Wei：
Check sample：Cement and sand are pressed 1:2 ratio mixing, add water the common of molding 300x300x40mm that stir
Wall, maintenance produces check sample (control wall) after 28 days.
Experiment sample：Cement and sand are pressed 1:2 ratio mixing, adds composite phase-change heat-storage prepared by the embodiment of the present invention
Construction material, the addition of the composite phase change heat-storing building material is the 3wt% of cement, is then made together using the above method
The phase-changing wall of sample size, maintenance produces experiment sample (experiment wall) after 28 days.
Check sample and experiment sample are vertically put on testing stand, in the side of sample (wall) with infrared lamp (400W)
Irradiation, while testing the temperature of check sample and experiment sample low temperature side and high temperature side (heat side) both sides in irradiation process with the time
Spend situation of change, the temperature of room temperature composite phase-change heat-storage material experiment sample low temperature side and high temperature side both sides prepared by embodiment 3
Degree situation of change figure is shown in Fig. 2.As shown in Figure 2：In experiment sample heat side (high temperature side) of the present invention, when sample is heated, due to
Room temperature phase-change energy-storage material heat absorption in experiment sample, the surface temperature of the experiment sample side is less than check sample, differs about 8 DEG C
Left and right, this is conducive to the surface coefficient of heat transfer for reducing the test sample side, heat output is reduced, so as to slow down experiment sample opposite side
The heating rate of (low temperature side)；In sample low temperature side, in the heating starting stage, the surface temperature of check sample and the experiment sample side
Spend no significant change, afterwards over time, its surface temperature gradually rises, and experiment sample heating rate be less than pair
In the same old way originally, temperature change is also shallower, so that temperature fluctuation is small, temperature keeps effect good；Experiment sample high temperature side and low temperature side
The Temperature Difference Ratio check sample of both sides is small by 10% or so.Room temperature composite phase-change heat-storage material experimental result prepared by remaining embodiment
With embodiment 3 substantially close to.
Each raw material cited by the present invention, and each raw material bound value and its interval value, this hair can be realized
It is bright；And the bound value and its interval value of each technological parameter (such as temperature, time), the present invention can be realized, herein
Do not enumerate embodiment.
Claims (4)
1. a kind of nano modified inorganic room temperature phase-change heat accumulating, it is characterised in that：It is by being modified with nano-mineral filler, inorganic
Adhesive aluminum phosphate, disodium hydrogen phosphate and water are constituted, and the mass ratio of each material is：5~7：3~5：20~40：1~3；
Described modification is with the mixture that nano-mineral filler is halloysite nanotubes, nano-attapulgite or its arbitrary proportion；Phase
Change heat storage material phase transition temperature is 20 ~ 30 DEG C.
2. nano modified inorganic room temperature phase-change heat accumulating according to claim 1, it is characterised in that described modified with receiving
A diameter of 10-50nm of rice mineral filler, length is 800-1000nm.
3. the preparation method of nano modified inorganic room temperature phase-change heat accumulating according to claim 1, it is characterised in that press
Parts by weight meter, 20 ~ 40 parts of disodium hydrogen phosphates is added in 1 ~ 3 part of water, the computer heating control system under conditions of stirring
After temperature is completely dissolved for 30-80 DEG C to disodium hydrogen phosphate, continue to control heating-up temperature to add 5 under conditions of stirring
~ 7 parts of modifications nano-mineral filler and 3 ~ 5 parts of aluminum phosphates, dispersed with stirring are uniform, and then cooling produces nano modified inorganic room temperature
Phase-change heat-storage material.
4. the preparation method of nano modified inorganic room temperature phase-change heat accumulating according to claim 3, it is characterised in that institute
The heating-up temperature stated is 50 DEG C.
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| CN105016703B (en) * | 2015-07-14 | 2017-03-08 | 贵州华益能环保科技有限公司 | A kind of energy storage slag warming plate and preparation method thereof |
| CN105219351B (en) * | 2015-09-23 | 2018-08-10 | 福建越特新材料科技有限公司 | A kind of preparation method of mould-proof-type plastic temperature adjustment material |
| CN107418521B (en) * | 2017-07-11 | 2020-10-30 | 江苏理工学院 | Ternary phase change cold storage material and preparation method thereof |
| CN112574716B (en) * | 2019-09-29 | 2022-02-25 | 长沙理工大学 | Composite phase change regulator and preparation method and application of composite phase change heat storage material thereof |
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