CN103484071A - Inorganic phase transition material having phase transition temperature of 22DEG C - Google Patents
Inorganic phase transition material having phase transition temperature of 22DEG C Download PDFInfo
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- CN103484071A CN103484071A CN201210197367.8A CN201210197367A CN103484071A CN 103484071 A CN103484071 A CN 103484071A CN 201210197367 A CN201210197367 A CN 201210197367A CN 103484071 A CN103484071 A CN 103484071A
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Abstract
The invention relates to an inorganic phase transition constant-temperature material, and concretely relates to an inorganic phase transition constant-temperature material having a phase transition temperature of 22DEG C. The inorganic phase transition constant-temperature material contains 26mass% of calcium chloride hexahydrate, 6mass% of strontium chloride hexahydrate, 3.5mass% of sodium chloride, 2.5mass% of acrylic acid, 7mass% of silica, 3.5mass% of sodium formate, 3.5mass% of carboxymethylcellulose sodium, 3mass% of potassium persulfate and 45mass% of water. The phase transition material has a phase transition temperature of 22DEG C, a degree of supercooling of 0.5DEG C, a phase transition latent heat of 218KJ/KG, can be recycled above 10000 times, and has the advantages of scale production of raw materials, no toxicity, no corrosion and easy popularization. The phase transition material is a colorless transparent liquid at normal temperature, so the phase transition material can be conveniently exploited and utilized in all energy storage fields.
Description
Technical field:
The present invention relates to a kind of inorganic-phase variable constant-temp material and preparation method thereof, a kind of transformation temperature of special design is at the phase change material of 21 ℃.
Background technology:
In numerous industries such as food, chemical industry, low temperature logistics, medical use, beer, refrigeration, communication information machine room, workshop, generally utilize refrigerator to environment or store the specified temp needed and carry out constant temperature.When refrigerator has a power failure, thus temperature recovery fast, can't maintain best envrionment temperature.In the refrigeration system without phase-change constant-temperature material, when isoperibol is provided, refrigerator work starts frequent, thereby has reduced its work-ing life, and current consumption is many.
Phase-change constant-temperature material is the latent heat cold-storage, is the functional materials of storage cold in the phase-change constant-temperature system.In the low power consumption phase at night, utilize during material latent heat is stored in phase-change constant-temperature material by cold, absorb natural cold quantity while cold being discharged or utilizing during peak of power consumption by day temperature low, thereby cold is discharged and meet environment or live required temperature when temperature is high.Such refrigeration system, most of the time absorbs natural cold quantity when operating in low power consumption at the night peak phase or utilizing nighttime temperature low, and high temperature peak times of power consumption only have the utility appliance operation by day, thereby realize that electrical network " avoids the peak hour with cold, peak load shifting ", be conducive to alleviate energy both sides disparities between supply and demand.
Also fewer to the research of phase-change material for cold storage both at home and abroad at present, but, in numerous industries such as food, chemical industry, low temperature logistics, medical use, beer, refrigeration, communication information machine room, workshops, constant-temp material is had to huge demand.Therefore study phase-change constant-temperature material, developing transformation temperature is 22 ℃, and latent heat of phase change is large, and condensate depression is little, and nothing is separated, novel, the phase-change constant-temperature material of stable performance, seems particularly important.
Phase change material stable performance provided by the present invention, transformation temperature is at 22 ℃, and condensate depression is 0.5 ℃, latent heat of phase change is 218KJ/KG, and phase transition process is reversible, and the number of times that can be recycled is more than 10000 times, starting material are scale production, nontoxic corrosion-free, are easy to promote.This phase change material is colourless transparent liquid when normal temperature, is convenient to each energy storage field and develops.
Summary of the invention:
The object of the present invention is to provide a kind of synthetic by the inorganic salts material, stable performance, latent heat of phase change is large, nontoxic corrosion-free, easily the good inorganic-phase variable constant-temp material of plasticity.
Inorganic-phase variable constant-temp material of the present invention is comprised of following by weight percentage:
Concrete preparation method:
1, the vinylformic acid that is 2.5% by total configuration amount in the configuration ware under 30～40 ℃ of conditions is that 5% water is made into the aqueous solution with total configuration amount;
2, the six aquation strontiums that are 6% by total configuration amount join in the aqueous solution of step 1, mix, and make mixing solutions;
3, add the sodium-chlor that total configuration amount is 3.5% in the mixing solutions of step 2, then add up the water that allocation ratio is 10%, stir, heat 1 hour, temperature remains on 45 ℃ of left and right allows it fully react.
4, the silicon-dioxide that is 5% by total configuration amount adds that to be put into total configuration amount be in 10% water, mixes, and makes mixing solutions;
5, to adding total configuration amount in the mixing solutions of step 4, be that 3.5% sodium formiate and 3% Potassium Persulphate stir;
6, solution in the solution of step 3 and step 5 is stirred;
7, be 26% calcium chloride hexahydrate to adding total configuration amount in the mixing solutions of step 6, react 0.5～1.5 hour under 40～45 ℃, condition of normal pressure.
8, by the macromolecular material of step 7 preparation, adding the sodium cellulose glycolate that total dosage is 3.5%, stir.
9, by adding the water that the total allocation ratio of residue is 20% in the macromolecular material of step 8 preparation, stir, place and get final product in 10～15 minutes.
10, final Chemical Composition " inorganic-phase variable liquid polymer material "
Inorganic phase-changing material product specification of the present invention is
| Density: | 1.38g/cm 3(25℃) |
| Transformation temperature: | 22℃ |
| Latent heat: | 218kJ/kg |
| Thermal conductivity: | 0.56W/m.k |
| Condensate depression: | 0.5℃ |
[0023]
| Access times | More than 10000 times |
The relation of the temperature and time of inorganic phase-changing material regelation of the present invention
Regelation is to make the condensing again in order to start another energy absorption-release cycle of phase change material.
This inorganic-phase variable constant-temp material starts regelation in the time of 21.5 ℃, be 6.5 hours time of coagulation, reduction along with temperature, time of coagulation is corresponding shortening also, in the time of 13 ℃, be 4 hours time of coagulation, in the time of 7 ℃, be 2.5 hours time of coagulation, and in the time of 1 ℃, be 1.5 hours time of coagulation, and in the time of 0 ℃, be 1 hour time of coagulation.
Result shows: the change of the time of regelation along with the temperature difference increases sharply greatly.
Inorganic phase-changing material of the present invention is controlled the relation of temperature and time
When envrionment temperature is 35 ℃, phase change material is controlled temperature capability and the time is inversely proportional to, increase along with the time, the cold that phase change material discharges starts to reduce, this phase change material starts released cold quantity in the time of 22 ℃, and can to keep temperature-time be 12 hours, then just can heat up gradually, until phase change material melts fully, with envrionment temperature, equate.
Accompanying drawing and accompanying drawing explanation
Preparation technology's schema that Fig. 1 is a kind of transformation temperature of the present invention inorganic phase-changing material that is 22 ℃
A is 26% calcium chloride hexahydrate
B is 6% 6 aquation strontium
C is 3.5% sodium-chlor
D is 2.5% vinylformic acid
E is 7% silicon-dioxide
F is 3.5% sodium formiate
G is 3.5% sodium cellulose glycolate
H is 3% Potassium Persulphate
The water that J is 5%
The water that K is 10%
The water that L is 10%
The water that M is 20%
O is the aqueous solution that step 1 produces
P is the mixing solutions that step 2 produces
Q is the mixing solutions that step 3 produces
R is the mixing solutions that step 4 produces
S is the mixing solutions that step 5 produces
T is the mixing solutions that step 6 produces
U is the mixing solutions that step 7 produces
V is the mixing solutions that step 8 produces
W is phase-change constant-temperature material of the present invention
1 mixes under 30～40 ℃ of conditions
2 stirring heating 1 hour, temperature remains on 45 ℃ of left and right
3 react 0.5～1.5 hour under 40～45 ℃, condition of normal pressure
4 stir, and place 10～15 minutes
Fig. 2 is temperature-time chart that inorganic phase-changing material that a kind of transformation temperature of the present invention is 22 ℃ melts again
This inorganic-phase variable constant-temp material starts regelation in the time of 21.5 ℃, be 6.5 hours time of coagulation, reduction along with temperature, time of coagulation is corresponding shortening also, in the time of 13 ℃, be 4 hours time of coagulation, in the time of 7 ℃, be 2.5 hours time of coagulation, and in the time of 1 ℃, be 1.5 hours time of coagulation, and in the time of 0 ℃, be 1 hour time of coagulation.
Fig. 3 is that the inorganic phase-changing material that a kind of transformation temperature of the present invention is 22 ℃ is controlled temperature-timing relationship
Article three, curve is respectively: outdoor environment temperature (25 ℃), variation and the variation of temperature while not applying this inorganic-phase variable constant-temp material of temperature while applying this inorganic-phase variable constant-temp material.Phase change material is controlled temperature capability and the time is inversely proportional to, increase along with the time, the cold that phase change material discharges starts to reduce, this phase change material starts released cold quantity in the time of 22 ℃, and can to keep temperature-time be 12 hours, then just can heat up gradually, until phase change material melts fully, equate with envrionment temperature.
Claims (3)
1. the present invention relates to a kind of synthetic by inorganic matter, stable performance, latent heat of phase change is large, nontoxic corrosion-free, easily the good inorganic-phase variable constant-temp material of plasticity.
Inorganic-phase variable constant-temp material of the present invention is comprised of following by weight percentage:
2. according to inorganic-phase variable constant-temp material claimed in claim 1, it is characterized in that: the material used is all inorganics.
3. inorganic-phase variable constant-temp material according to claim 1 and 2 is characterized in that: transformation temperature is at 22 ℃, and condensate depression is 0.5 ℃, and latent heat of phase change is 218KJ/KG, and phase transition process is reversible, and the number of times that can be recycled is more than 10000 times.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210197367.8A CN103484071A (en) | 2012-06-15 | 2012-06-15 | Inorganic phase transition material having phase transition temperature of 22DEG C |
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| CN201210197367.8A CN103484071A (en) | 2012-06-15 | 2012-06-15 | Inorganic phase transition material having phase transition temperature of 22DEG C |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994012587A1 (en) * | 1992-12-01 | 1994-06-09 | Harot Technology Inc. | Heat accumulating material, method of and equipment for the use thereof |
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- 2012-06-15 CN CN201210197367.8A patent/CN103484071A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994012587A1 (en) * | 1992-12-01 | 1994-06-09 | Harot Technology Inc. | Heat accumulating material, method of and equipment for the use thereof |
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Application publication date: 20140101 |