CN100467565C - Method for preparing organic molecular alloy phase change energy storage material - Google Patents
Method for preparing organic molecular alloy phase change energy storage material Download PDFInfo
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- CN100467565C CN100467565C CNB200510026226XA CN200510026226A CN100467565C CN 100467565 C CN100467565 C CN 100467565C CN B200510026226X A CNB200510026226X A CN B200510026226XA CN 200510026226 A CN200510026226 A CN 200510026226A CN 100467565 C CN100467565 C CN 100467565C
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- 230000008859 change Effects 0.000 title claims abstract description 36
- 238000004146 energy storage Methods 0.000 title claims abstract description 29
- 239000011232 storage material Substances 0.000 title claims abstract description 27
- 229910000905 alloy phase Inorganic materials 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000012071 phase Substances 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 238000002360 preparation method Methods 0.000 claims abstract description 13
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 12
- 239000000956 alloy Substances 0.000 claims abstract description 12
- 239000012074 organic phase Substances 0.000 claims abstract description 10
- 238000005516 engineering process Methods 0.000 claims abstract description 8
- 238000002076 thermal analysis method Methods 0.000 claims abstract description 7
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 claims description 22
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical compound CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 claims description 12
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 claims description 12
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 claims description 10
- TUNFSRHWOTWDNC-UHFFFAOYSA-N Myristic acid Natural products CCCCCCCCCCCCCC(O)=O TUNFSRHWOTWDNC-UHFFFAOYSA-N 0.000 claims description 8
- 239000005639 Lauric acid Substances 0.000 claims description 6
- 239000005632 Capric acid (CAS 334-48-5) Substances 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 3
- 235000021314 Palmitic acid Nutrition 0.000 claims 3
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 claims 3
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 claims 2
- TWJNQYPJQDRXPH-UHFFFAOYSA-N 2-cyanobenzohydrazide Chemical compound NNC(=O)C1=CC=CC=C1C#N TWJNQYPJQDRXPH-UHFFFAOYSA-N 0.000 claims 1
- 235000021360 Myristic acid Nutrition 0.000 claims 1
- 238000000113 differential scanning calorimetry Methods 0.000 claims 1
- 238000009413 insulation Methods 0.000 claims 1
- 230000009466 transformation Effects 0.000 description 13
- 239000012782 phase change material Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 238000001938 differential scanning calorimetry curve Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- HOWGUJZVBDQJKV-UHFFFAOYSA-N docosane Chemical compound CCCCCCCCCCCCCCCCCCCCCC HOWGUJZVBDQJKV-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- HMSWAIKSFDFLKN-UHFFFAOYSA-N hexacosane Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCC HMSWAIKSFDFLKN-UHFFFAOYSA-N 0.000 description 2
- 150000002632 lipids Chemical class 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- HLZKNKRTKFSKGZ-UHFFFAOYSA-N tetradecan-1-ol Chemical compound CCCCCCCCCCCCCCO HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 description 2
- QMMJWQMCMRUYTG-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=C(Cl)C(Cl)=CC(Cl)=C1Cl QMMJWQMCMRUYTG-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本发明涉及相变储能材料的制备方法领域。本发明所述的有机分子合金储能材料的制备方法步骤如下：先按适当的配比间距设定一系列试配比，按设定试配比秤量有机相变材料制得试配比混合物，然后在80～100℃中恒温保持1～4小时，再将得到的产物超声波震动1～5分钟，超声波频率40～50千赫兹，温度控制在50～80℃，最后利用热分析技术测试不同试配比的有机相变材料的相变温度和相变热，取具有单相变温度和最大相变热试配比的有机分子合金相变储能材料为目标产物。利用该方法可以将多种不同的有机相变材料组合在一起，制备出自然界中没有的、相变温度可调节的、相变热较大的有机分子合金相变储能材料。
The invention relates to the field of preparation methods of phase-change energy storage materials. The steps of the preparation method of the organic molecular alloy energy storage material according to the present invention are as follows: first, a series of trial proportions are set according to the appropriate proportioning distance, and the organic phase change material is weighed according to the set trial proportions to prepare the trial proportion mixture, Then keep the constant temperature at 80-100°C for 1-4 hours, then ultrasonically vibrate the obtained product for 1-5 minutes, the ultrasonic frequency is 40-50 kHz, the temperature is controlled at 50-80°C, and finally the thermal analysis technology is used to test different samples. The phase change temperature and phase change heat of the proportioned organic phase change material, the organic molecular alloy phase change energy storage material with a single phase change temperature and the largest phase change heat trial ratio is taken as the target product. Using this method, a variety of different organic phase change materials can be combined to prepare an organic molecular alloy phase change energy storage material that does not exist in nature, has an adjustable phase change temperature, and has a large phase change heat.
Description
Technical field
The invention belongs to the thermal energy storage technical field, particularly the preparation method field of phase-changing energy storage material.
Background technology
Phase-changing energy storage material utilizes material neither endothermic nor exothermic in phase transition process to come storage power or releases energy, and has characteristics such as the approximate isothermal of storage density height, heat accumulation heat release, process be easy to control.The kind of phase-changing energy storage material is a lot, can be divided into by the mode of phase transformation that solid-solid phase transition material, solid-liquid phase change material, solid-gas phase become material, liquid-gas phase becomes material etc.; Moiety by material can be divided into mineral-type and organic class (comprising the high score subclass) phase-changing energy storage material.
Organic class phase change material is commonly used paraffin, lipid acid or its ester class, alcohols, arene, fragrant ketone, amides etc.The advantage of organic class phase change material is that formability better, generally is not easy to occur surfusion and is separated when solid state, and the corrodibility of material is less, and performance is more stable, and toxicity is little, cost is low; Energy storage capacity little, the less unit volume of density is less thereby shortcoming is a thermal conductivity, and fusing point is lower, be unsuitable for using in the high temperature occasion, and volatile, easy firing even blast or worn out by airborne oxygen slow oxidation.
Summary of the invention
The objective of the invention is to propose the preparation method of a kind of transformation temperature organic molecular alloy phase change energy storage material adjustable, that heat of phase transformation is bigger.
Because the phase transformation performance of organic molecule alloy is different with the phase transformation performance of single component, therefore, can be by regulating different components and proportioning to obtain the phase change material of a series of different transformation temperatures and heat of phase transformation.The method that the present invention adopts soak to combine with vibration of ultrasonic wave, and utilize modern thermoanalysis technology, by a series of examination proportioning mixtures are carried out hot analytical test, study the thermal characteristics of different proportioning organic molecular alloy phase change materials, get examination proportioning, thereby prepare the satisfactory organic molecular alloy phase change energy storage material of performance with single-phase alternating temperature degree and maximal phase heating.
The preparation method of organic molecular alloy phase change energy storage material of the present invention, its step is as follows:
A, the preparation of examination proportioning mixture: set a series of examination proportionings by suitable proportioning spacing,, make examination proportioning mixture by setting examination proportioning weighing organic phase change material;
B, soak: the examination proportioning mixture that step a is obtained kept 1～4 hour in 80～100 ℃ of constant temperature;
C, vibration of ultrasonic wave: the product vibration of ultrasonic wave that step b is obtained 1～5 minute, ultrasonic frequency 40～50 kilohertzs, temperature is controlled at 50～80 ℃;
D, utilize the transformation temperature and the heat of phase transformation of the organic phase change material of the different examination of thermoanalysis technology test proportionings, getting the organic molecular alloy phase change energy storage material with single-phase alternating temperature degree and maximal phase heating examination proportioning is target product.
The preparation method of organic molecular alloy phase change energy storage material of the present invention, wherein the described thermoanalysis technology of step a is meant differential scanning calorimetric (DSC) analytical technology; Organic phase change material can be two or more the material in alkane, lipid acid and the derivative thereof, as tetradecanoic acid, palmitinic acid, stearic acid, butyl stearate, lauryl alcohol, and tetradecyl alcohol, hexadecanol, docosane, hexacosane etc.
Beneficial effect of the present invention: the preparation method who utilizes organic molecular alloy phase change energy storage material of the present invention, multiple different organic phase change material can be combined, the different proportionings of regulating the different components of molecular alloy and identical component by modern thermoanalysis technology can obtain the phase change material of different transformation temperatures, the method that adopts soak to combine with vibration of ultrasonic wave is again prepared organic molecular alloy phase change energy storage material that occurring in nature does not have, that transformation temperature is adjustable, heat of phase transformation is bigger.
Description of drawings
Fig. 1 is the DSC curve of the machine molecular alloy phase-changing energy storage material that makes of embodiment 1.
Fig. 2 is the DSC curve of the machine molecular alloy phase-changing energy storage material that makes of embodiment 2.
Fig. 3 is the DSC curve of the machine molecular alloy phase-changing energy storage material that makes of embodiment 3.
Embodiment
Embodiment 1
With chemical pure n-caprylic acid, lauric acid as raw material.Setting examination proportioning (mol ratio) series is n-caprylic acid: lauric acid=5:95,10:90,15:85,20:80,25:75,30:70,35:65,40:60,45:55,50:50,55:45,60:40,65:35,70:30,75:25,80:20,85:15,90:10,95:5.Examination proportioning mixture is incubated 4 hours in 80 ℃ constant temperature insulating container, the water-bath of then test tube being put into ultrasonic generator, the temperature of control water-bath is 60 ℃, and the ultrasonic vibration time is 3 minutes, and ultrasonic frequency is 40～50 kilohertzs.Through above-mentioned series examination proportioning mixture is carried out hot analytical test, get examination proportioning with single-phase alternating temperature degree and maximal phase heating, determine that the target proportioning is n-caprylic acid: lauric acid=80:20 (mol ratio), the DSC test result of this molecular alloy is seen Fig. 1.
With chemical pure n-caprylic acid, palmitinic acid as raw material.Setting examination proportioning (mol ratio) series is n-caprylic acid: palmitinic acid=5:95,10:90,15:85,20:80,25:75,30:70,35; 65,40:60,45:55,50:50,55:45,60:40,65:35,70:30,75:25,80:20,85:15,90:10,95:5.Examination proportioning mixture is incubated 2.5 hours in 90 ℃ constant temperature insulating container, the water-bath of then test tube being put into ultrasonic generator, the temperature of control water-bath is 50 ℃, and the ultrasonic vibration time is 5 minutes, and ultrasonic frequency is 40～50 kilohertzs.Through above-mentioned series examination proportioning mixture is carried out hot analytical test, get examination proportioning with single-phase alternating temperature degree and maximal phase heating, determine that the target proportioning is n-caprylic acid: palmitinic acid=95:5 (mol ratio), the DSC test result of this molecular alloy is seen Fig. 2.
Embodiment 3
With chemical pure capric acid, tetradecanoic acid as raw material.Setting examination proportioning (mol ratio) series is capric acid: tetradecanoic acid=5:95,10:90,15:85,20:80,25:75,30:70,35:65,40:60,45:55,50:50,55:45,60:40,65:35,70:30,75:25,80:20,85:15,90:10,95:5.Examination proportioning mixture is incubated 1 hour in 100 ℃ constant temperature insulating container, the water-bath of then test tube being put into ultrasonic generator, the temperature of control water-bath is 80 ℃, and the ultrasonic vibration time is 1 minute, and ultrasonic frequency is 40～50 kilohertzs.Through above-mentioned series examination proportioning mixture is carried out hot analytical test, get examination proportioning with single-phase alternating temperature degree and maximal phase heating, determine that the target proportioning is capric acid: tetradecanoic acid=75:25 (mol ratio), the DSC test result of this molecular alloy is seen Fig. 3.
By the DSC test result of above embodiment and organic molecule alloy as seen, utilize the preparation method of organic molecular alloy phase change energy storage material of the present invention can obtain the original non-existent phase change material of occurring in nature, and can obtain the phase change material of needed specified temp in the practical application, also guarantee to have higher heat of phase transformation simultaneously.
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| CN103031114A (en) * | 2012-05-03 | 2013-04-10 | 华东理工大学 | High-thermal-conductivity composite phase change energy storage microcapsules used at normal temperature and preparation method thereof |
| CN104644323A (en) * | 2015-01-27 | 2015-05-27 | 广州医科大学附属第一医院 | Cooling head sleeve |
| CN105838332A (en) * | 2016-03-31 | 2016-08-10 | 中国民航大学 | Low-temperature phase-change energy-storage material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19813562A1 (en) * | 1997-05-21 | 1998-11-26 | Schuemann Sasol Gmbh & Co Kg | Latent heat body |
| CN1429261A (en) * | 2000-05-19 | 2003-07-09 | 法国石油研究所 | Method for making quasi-incompressible phase-change material with low thermal conductivity, and resulting product |
| CN1594192A (en) * | 2004-07-15 | 2005-03-16 | 南京大学 | Energy storage building material and preparing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19813562A1 (en) * | 1997-05-21 | 1998-11-26 | Schuemann Sasol Gmbh & Co Kg | Latent heat body |
| CN1429261A (en) * | 2000-05-19 | 2003-07-09 | 法国石油研究所 | Method for making quasi-incompressible phase-change material with low thermal conductivity, and resulting product |
| CN1594192A (en) * | 2004-07-15 | 2005-03-16 | 南京大学 | Energy storage building material and preparing method thereof |
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