CN106010459A - Phase change and heat storage composite material for easing pain - Google Patents
Phase change and heat storage composite material for easing pain Download PDFInfo
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- CN106010459A CN106010459A CN201610392145.XA CN201610392145A CN106010459A CN 106010459 A CN106010459 A CN 106010459A CN 201610392145 A CN201610392145 A CN 201610392145A CN 106010459 A CN106010459 A CN 106010459A
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- 238000005338 heat storage Methods 0.000 title claims abstract description 119
- 239000002131 composite material Substances 0.000 title claims abstract description 107
- 230000008859 change Effects 0.000 title claims abstract description 69
- 230000036407 pain Effects 0.000 title description 3
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims abstract description 178
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 138
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 76
- 235000011187 glycerol Nutrition 0.000 claims abstract description 51
- 239000004094 surface-active agent Substances 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 24
- 238000002360 preparation method Methods 0.000 claims abstract description 19
- 230000000202 analgesic effect Effects 0.000 claims abstract description 10
- 150000001298 alcohols Chemical class 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 62
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 35
- 229920000053 polysorbate 80 Polymers 0.000 claims description 35
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 21
- 238000005303 weighing Methods 0.000 claims description 16
- 238000002329 infrared spectrum Methods 0.000 claims description 15
- 239000004530 micro-emulsion Substances 0.000 claims description 15
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 claims description 9
- 230000010355 oscillation Effects 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 6
- -1 octadecanol) Chemical compound 0.000 claims description 4
- 229920000136 polysorbate Polymers 0.000 claims description 4
- 229920001213 Polysorbate 20 Polymers 0.000 claims description 3
- 229920001214 Polysorbate 60 Polymers 0.000 claims description 3
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 claims description 3
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 claims description 3
- 230000001225 therapeutic effect Effects 0.000 claims description 3
- 239000012071 phase Substances 0.000 description 68
- 238000000113 differential scanning calorimetry Methods 0.000 description 19
- 230000000052 comparative effect Effects 0.000 description 17
- 239000011232 storage material Substances 0.000 description 16
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- 238000007710 freezing Methods 0.000 description 13
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- 238000012360 testing method Methods 0.000 description 9
- 239000000693 micelle Substances 0.000 description 7
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- 238000004566 IR spectroscopy Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 6
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- 230000008023 solidification Effects 0.000 description 6
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- 239000007787 solid Substances 0.000 description 5
- 239000003814 drug Substances 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005191 phase separation Methods 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 208000007101 Muscle Cramp Diseases 0.000 description 2
- 208000026137 Soft tissue injury Diseases 0.000 description 2
- 208000005392 Spasm Diseases 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229960001701 chloroform Drugs 0.000 description 2
- 208000037976 chronic inflammation Diseases 0.000 description 2
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- 230000007547 defect Effects 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000008338 local blood flow Effects 0.000 description 2
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- 238000004781 supercooling Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- HLZKNKRTKFSKGZ-UHFFFAOYSA-N tetradecan-1-ol Chemical compound CCCCCCCCCCCCCCO HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 description 2
- 230000010356 wave oscillation Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 230000036592 analgesia Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
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- 238000005485 electric heating Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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- 239000012454 non-polar solvent Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003495 polar organic solvent Substances 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
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- 239000007858 starting material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002076 thermal analysis method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000002604 ultrasonography Methods 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/02—Compresses or poultices for effecting heating or cooling
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/08—Warming pads, pans or mats; Hot-water bottles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/02—Compresses or poultices for effecting heating or cooling
- A61F2007/0203—Cataplasms, poultices or compresses, characterised by their contents; Bags therefor
- A61F2007/0215—Cataplasms, poultices or compresses, characterised by their contents; Bags therefor containing liquids other than water
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/02—Compresses or poultices for effecting heating or cooling
- A61F2007/0282—Compresses or poultices for effecting heating or cooling for particular medical treatments or effects
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/02—Compresses or poultices for effecting heating or cooling
- A61F2007/0292—Compresses or poultices for effecting heating or cooling using latent heat produced or absorbed during phase change of materials, e.g. of super-cooled solutions
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Biomedical Technology (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Medicinal Preparation (AREA)
Abstract
The invention provides a phase change and heat storage composite material and a preparation method and an application thereof; the material contains long-chain alcohols such as octadecanol, water, glycerin or a mixture of water and glycerin, and a surfactant, has the characteristics of low hardness, large usable phase-change latent heat, and stable heat storage capacity; a phase-change temperature of the phase change and heat storage composite material is 35-60 DEG C, and the usable phase-change heat is up to 197 J/g, so the phase change and heat storage composite material can be used for preparing analgesic treatment preparations or hot compress analgesic materials.
Description
Technical Field
The invention relates to a phase-change heat storage composite material, in particular to a phase-change heat storage composite material with the phase-change temperature of 35-60 ℃.
Background
There are generally two ways in which materials store thermal energy: sensible heat and latent heat (i.e., phase change heat). Sensible heat storage is performed by utilizing the specific heat capacity of the material and the temperature change of the material; latent heat storage is performed by using materials in the process of state transition along with energy absorption and release, wherein the latent heat storage generally has much higher energy storage density than sensible heat storage, so that the latent heat storage of materials has wider prospect.
As described in non-patent document "phase change material and phase change energy storage technology", at present, phase change energy storage materials have become popular in material science research, and many new materials developed in laboratories have emerged, but the number of new materials for realizing industrial scale production is large, and the new materials generally have the defects of high raw material cost, complex preparation process, inconvenient use, short product life and the like.
Patent CN200710012102.5 mentions the use of tetradecanol as a raw material for preparing composite phase change materials, but the inventor of the patent does not solve the problem of material comfort when seeking to improve the thermal conductivity.
The traditional hot compress therapy is to directly apply the hot water bag, the electric heating warmer and the Hantongle to the affected part to achieve the purpose of treatment. Hot compress therapy plays an important role in the treatment of soft tissue injury diseases. The therapy can increase temperature of affected part, dilate subcutaneous blood vessel, improve local blood circulation, promote local metabolism, eliminate chronic inflammation, relieve muscle spasm, relax nerve, improve tendon softness, and relieve pain and swelling. The hot compress can also lead the medicine to be absorbed locally to achieve the purpose of directly reaching the focus, thus leading the treatment to be more direct and effective. Compared with the traditional hot compress material, the material has longer maintenance time under unit mass, can be recycled, and is economic and environment-friendly.
Disclosure of Invention
In order to solve the above technical problems, the present inventors have conducted extensive studies and found that: the long-chain alcohol has moderate freezing point (for example, the freezing point of octadecanol is 48-54 ℃), has larger phase change latent heat, the phase change heat is 209J/g, is liquid under the conditions of normal temperature and normal pressure, is insoluble in water and glycerin, is soluble in propylene glycol, ethanol, benzene, chloroform, ether and the like, and has the density of 0.81 relative to water, so the long-chain alcohol has the advantages of light weight, safety and reliability when being used in the normal temperature and normal pressure environment. Meanwhile, the heat conductivity coefficient of water and glycerol is better than that of long-chain alcohol (such as octadecanol), so the invention mixes the octadecanol with water or glycerol according to a specific proportion to prepare a micro-emulsion system under the action of stirring or ultrasound by the surfactant. The microemulsion system has the advantages that due to the addition of water or glycerol, the phase change temperature is slightly reduced under the condition that the phase change heat of the system can reach more than 95% of the total phase change heat of octadecanol, and one to two phase change points exist; meanwhile, the heat conducting capacity of the system is improved, and the comfort degree of the phase-change heat storage material in use is enhanced; in addition, due to the addition of water or glycerin, the system is in a soft gel state after phase change, the hardness of the octadecanol after phase change is greatly reduced, the defect of the octadecanol in application is overcome, and the system is stable in phase change performance and high in practicability.
The phase-change heat storage material can be used for hot compress treatment and particularly has an analgesic effect. The phase change material has large phase change enthalpy, and the released phase change latent heat is equivalent to the heat released by hot water with the same weight of 70-80 ℃. Therefore, the phase change material has a long exothermic time, which can be several hours, and thus the present invention has been completed.
The invention aims to provide the following aspects:
in a first aspect of the invention, a phase change heat storage composite is provided comprising a long chain alcohol.
Wherein the phase-change temperature of the phase-change heat storage composite material is within the temperature range of 35-60 ℃.
Preferably, the phase change heat storage composite comprises a long chain alcohol, especially stearyl alcohol, a surfactant and water, glycerol or a mixture thereof.
More preferably, the composite material comprises the following substances in parts by weight:
surfactant (b): 0.5-1.5 parts;
long chain alcohols (e.g., stearyl alcohol): 6 parts of (1);
water: 0.4-2.5 parts;
or the composite material comprises the following substances in parts by weight:
surfactant (b): 0.5-1.5 parts;
long chain alcohols (e.g., stearyl alcohol): 6 parts of (1);
glycerol: 1.5 to 3 parts by weight of a stabilizer,
or the composite material comprises the following substances in parts by weight:
wherein the surfactant is surfactant of Tween series, preferably Tween-80, Tween-60, Tween-40 and Tween-20, more preferably Tween-80.
Preferably, the phase-change heat storage composite material is prepared by the following method:
weighing long-chain alcohol (such as octadecanol), surfactant and water and/or glycerol at 55-65 ℃, putting the weighed surfactant into a container, adding the weighed water and/or glycerol, fully stirring to dissolve the surfactant, adding or dropwise adding the long-chain alcohol (such as octadecanol) in batches under the stirring condition, and continuously stirring or fully mixing the components uniformly by an ultrasonic oscillation method to prepare the micro-emulsion phase-change heat storage composite material.
The phase-change heat storage composite material provided by the invention has the phase-change temperature of 35-60 ℃, and the available phase-change heat is up to 197J/g, so that the phase-change heat storage composite material can be used for preparing analgesic therapeutic preparations or hot compress analgesic materials.
In summary, the phase-change heat storage composite material, the preparation method and the application thereof provided by the invention have the following beneficial effects:
(1) the phase change temperature of the phase change heat storage composite material is within the temperature range of 35-60 ℃, the available phase change heat is up to 197J/g, and accounts for 95% of the total phase change heat of long-chain alcohol such as octadecanol, and the phase change heat storage composite material has an application prospect in manufacturing hot compress analgesic materials and the like;
(2) after the phase change heat storage composite material provided by the invention is recycled for multiple times, the heat storage capacity of the phase change heat storage composite material is still good, the phase change heat storage composite material can be repeatedly used for multiple times, and the phase change heat storage composite material has practical value;
(3) the phase-change heat storage composite material provided by the invention has stable chemical properties and is not easy to corrode a storage container;
(4) in the invention, long-chain alcohol such as octadecanol is diluted by water or glycerol to prepare a microemulsion body which is convenient to use, and meanwhile, the raw materials are convenient and easy to obtain, thereby saving a large amount of cost.
Drawings
FIG. 1 shows a chart of DSC test results for octadecanol;
FIG. 2 is a graph showing the results of DSC tests corresponding to example 1;
FIG. 3 shows the corresponding infrared spectrum of example 1;
FIG. 4 is a chart showing the results of DSC tests corresponding to example 2;
FIG. 5 shows a corresponding infrared spectrum of example 2;
FIG. 6 is a chart showing the results of DSC tests corresponding to example 3;
FIG. 7 shows the corresponding infrared spectrum of example 3;
FIG. 8 is a chart showing the results of DSC tests corresponding to example 4;
FIG. 9 shows the corresponding infrared spectrum of example 4;
FIG. 10 is a chart showing the results of DSC tests corresponding to example 5;
FIG. 11 shows the infrared spectrum corresponding to example 5;
FIG. 12 is a chart showing the results of DSC tests corresponding to comparative example 3;
FIG. 13 shows a corresponding infrared spectrum of comparative example 3;
FIG. 14 is a chart showing the results of DSC tests corresponding to comparative example 5;
FIG. 15 shows the infrared spectrum corresponding to comparative example 5.
Detailed Description
The features and advantages of the present invention will become more apparent and appreciated from the following detailed description of the invention.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
According to the present invention, there is provided a phase change heat storage composite material comprising a long chain alcohol.
The inventors have surprisingly found, through extensive screening and trial and error, that among a large number of starting materials, long-chain alcohols, such as C16-C24Preferably C17-C22More preferably C18-C20Especially, octadecanol is suitable as a phase change heat storage material.
Thus, according to the invention, the phase change heat storage material is made of a long chain alcohol (such as stearyl alcohol); the surfactant, water, glycerin or their mixture is mixed and stirred to prepare the product.
Specifically, according to a preferred embodiment, the phase-change heat storage material comprises the following materials by weight:
surfactant (b): 0.5-1.5 parts;
long chain alcohols (e.g., stearyl alcohol): 6 parts of (1);
water: 0.4-2.5 parts;
wherein,
the surfactant is also a dispersing cosolvent, preferably surfactant of Tween series, more preferably Tween-80, Tween-60, Tween-40 and Tween-20; the amount is preferably 0.6 to 1.3 parts, more preferably 0.7 to 1.1 parts, particularly 0.8 to 1.0 part, per 6 parts by weight of the long-chain alcohol.
The octadecanol is white solid at normal temperature and normal pressure, the phase transition point is 59 ℃, and the phase transition heat is 209J/g; the supercooling phenomenon is avoided, and the phase change heat storage effect can be stably realized; meanwhile, the chemical property is stable, and the chemical reaction with other substances is avoided at normal temperature and normal pressure, so that the storage container is not easy to corrode; through Differential Scanning Calorimetry (DSC) detection, as shown in figure 1, the energy storage capacity of the material does not have an obvious reduction trend in multiple temperature reduction-temperature rise cycles, and the material is an ideal low-temperature phase-change heat storage material.
However, octadecanol is inferior in heat conductivity and has a small heat conductivity, whereas water, which is an inorganic substance, is a good heat conductive medium and has a heat conductivity of 0.5W/(m.K), so that if water is introduced into octadecanol, it is possible to improve its heat conductivity. Because organic octadecanol and inorganic water are difficult to be mutually soluble, a small amount of surfactant is required to be added into the system to ensure that the octadecanol and the water can be uniformly dispersed to form a micro-emulsion-shaped composite system, wherein the surfactant is preferably Tween-80.
The micro-emulsion composite system is a colloid dispersion system formed by a water phase, an oil phase and a surfactant. Microemulsion materials are transparent or translucent spontaneously-formed thermodynamically stable systems, including micellar systems and reverse micellar systems.
Wherein the surfactant is dissolved in a non-polar organic solvent at a concentration exceeding the Critical Micelle Concentration (CMC), and the micelles formed in the organic solvent are called reverse micelles.
The reverse micelle is a nano-scale water-in-oil colloid dispersion system formed by surfactant molecules in a nonpolar solvent, in the system, the surfactant molecules are directionally arranged on an interface, hydrocarbon chains are combined with organic matters, polar terminals or charged heads and counter ions are inwards arranged to form polar cores, so that lipophilic outward and hydrophilic inward outward are formed, and the particles with the size of colloid level are stably dispersed in water. The phase-change heat storage composite material provided by the invention is a reverse micelle system.
In addition, because pure octadecanol is hard after solidification, and the shape formed by solidification is not easy to control, so the method is limited in practical use, and air-conditioning clothes cannot be made, however, the octadecanol concentration can be reduced by introducing water into the octadecanol system, so that the phase-change heat storage composite material is in a gel state after solidification, and the system has the advantages that when the characteristic that the solidification point of octadecanol is higher than that of water phase is utilized, and when the octadecanol is solidified and the water phase is not solidified, the solid octadecanol is fragmented, the hardness is effectively reduced, and the melting point is slightly reduced. The phase change heat storage material is more convenient to use in actual production and life, and the water content in the system can reach 2.5 parts by weight without obviously reducing the heat storage effect of the phase change heat storage material.
And because the price of water is far lower than that of octadecanol, 0.41-2.5 parts by weight of water can be used for diluting the phase change heat storage composite material system to save a large amount of cost under the condition of ensuring that the phase change heat is not obviously reduced. When the weight ratio of the water to the octadecanol is more than 2.5, the phase transformation heat begins to drop, and the phenomenon of phase separation occurs; when the weight ratio of the water to the octadecanol is less than 0.4, the prepared phase-change heat storage composite material has high hardness after phase change, and is inconvenient to use.
Therefore, in the present invention, it is preferable that the amount of water is 0.4 to 2.5 parts by weight, preferably 0.5 to 2.0 parts by weight, more preferably 0.6 to 1.5 parts by weight, and most preferably 0.8 to 1.2 parts by weight, per 6 parts by weight of the long-chain alcohol.
The phase-change heat storage composite material has specific spectral characteristics, such as infrared spectrum characteristic peaks: 3276cm-1，2955cm-1，2916cm-1，2848cm-1，1472cm-1，1462cm-1，1061cm-1，719cm-1。
The phase-change heat storage composite material is prepared by the following method:
at the temperature of 55-65 ℃, octadecanol, surfactant and water are weighed according to the weight ratio, the weighed surfactant is placed in a container, the weighed water is added, the octadecanol is added in batches or dropwise under the stirring condition, and the components are fully and uniformly mixed by continuously stirring or an ultrasonic oscillation method to prepare the microemulsion phase-change heat storage composite material.
In the preparation process of the phase-change heat storage composite material, octadecanol needs to be added into a mixture of water and a surfactant, if the octadecanol is added at one time, a phase separation phenomenon can be generated, and the phase-change heat storage composite material of a uniform system can not be prepared under the condition of prolonging the stirring time; and when the octadecanol is added or dripped in batches under the stirring or ultrasonic condition, the prepared phase-change heat storage composite material has uniform system and short preparation time. The preparation temperature of the invention can be finished at 55-65 ℃. For the stirring speed, when the stirring speed is less than 300rpm, the stirring intensity is too small, so that octadecanol, water, tween and the like in the composite material cannot be fully contacted, and a reverse micelle system is not easy to form; when the stirring speed is more than 1000rpm, a reverse micelle system can be quickly formed, but the cost of energy consumption is more than the benefit brought by the phase change heat storage material, so the stirring speed is preferably 300-1000 rpm.
The temperature of ultrasonic oscillation used in the preparation process of the phase-change heat storage composite material provided by the invention is 55-65 ℃; when the power of ultrasonic wave is less than 100W, the prepared phase-change heat storage composite material system is not uniform, the uniformity of the phase-change heat storage composite material is increased along with the gradual increase of the frequency of ultrasonic wave oscillation, but when the power of ultrasonic wave oscillation is more than 800W, the performance of the phase-change heat storage composite material is not obviously improved, and the instrument is damaged due to the fact that the ultrasonic wave power is high and the instrument is used for a long time. Therefore, the preferred ultrasonic oscillation frequency of the present invention is 100 to 800W, and the ultrasonic oscillation is preferably repeated 10 times with an interval of 20s for 10 s.
Therefore, the invention also provides a preparation method of the phase-change heat storage composite material, which comprises the following steps:
the preparation method comprises the following steps of weighing octadecanol, a surfactant and water at 55-65 ℃, placing the weighed surfactant into a container, adding the weighed water into the container, adding or dropwise adding the octadecanol under the stirring condition, and continuously and uniformly mixing the components by a stirring or ultrasonic oscillation method to prepare the microemulsion-shaped phase-change heat storage composite material.
According to another preferred embodiment of the present invention, there is also provided a phase change heat storage composite material, which comprises the following components in parts by weight:
surfactant (b): 0.5-1.5 parts;
long chain alcohols (e.g., stearyl alcohol): 6 parts of (1);
glycerol: 1.5-3 parts.
Glycerin, the chemical name of which is glycerol, is a polyhydroxy organic compound, and three alcoholic hydroxyls carried by the glycerin are easy to form hydrogen bonds with water and the like, so the glycerin can be mixed and dissolved with water and ethanol and is not dissolved in solvents such as benzene, carbon disulfide, trichloromethane, carbon tetrachloride and the like; the heat conducting property is good, the heat conducting coefficient is 0.29W/(m.K), the chemical property is stable, the chemical reaction with other substances is not easy to occur at normal temperature, and the use is safe and reliable. Experiments show that the phase-change heat storage material prepared by using glycerol to replace water is as soft after phase change, and can reach the level of clothing application.
In addition, in the phase-change heat storage material, the glycerol is used for replacing water, so that the risk of phase separation can be effectively reduced, and the glycerol molecule has three hydroxyl groups, so that the hydrogen bonding effect in the molecule and among the molecules is stronger when the glycerol molecule forms a polar nucleus, and the formed polar nucleus is more stable; in addition, glycerin and octadecanol are organic matters, so that the formed phase-change heat storage material is more stable.
The phase-change heat storage composite material has specific spectral characteristics, such as infrared spectrum characteristic peaks: 3316cm-1，2956cm-1，2916cm-1，2848cm-1，1462cm-1，1062cm-1，730cm-1。
The preparation method comprises the following steps:
the preparation method comprises the following steps of weighing octadecanol, surfactant and water at 55-65 ℃, placing the weighed surfactant into a container, adding weighed glycerol, fully stirring to dissolve the surfactant, adding the octadecanol in batches or dropwise under the stirring condition, continuously stirring or fully mixing the components uniformly by an ultrasonic oscillation method, and preparing the microemulsion phase-change heat storage composite material.
According to another preferred embodiment of the present invention, there is also provided a phase change heat storage composite material, which comprises the following components in parts by weight:
in the present invention, the weight ratio of glycerin to water is not particularly limited.
Because water and glycerin can be mixed and dissolved, the phase-change heat storage material system is diluted by the mixture of water and glycerin, the hardness of the material can be effectively reduced, and the system can keep good stability. The experimental research shows that the freezing point and the enthalpy of the sample can be obviously reduced along with the increase of the water content in the system, and the freezing point of the sample containing the glycerol does not change along with the increase of the glycerol. And the solidification exothermic peak and the melting endothermic peak are in one-to-one correspondence, and the material is not partially solidified by simply increasing the lowest cooling temperature so as to increase the flexibility, so that 50 percent of the phase change enthalpy value of the material is lost. However, the phase-change heat storage material is prepared by mixing water and glycerol by utilizing the characteristic.
The phase-change heat storage composite material has specific spectral characteristics, such as infrared spectrum characteristic peaks: 3318cm-1，2955cm-1，2916cm-1，2848cm-1，1462cm-1，1062cm-1，719cm-1。
The preparation method comprises the following steps:
the preparation method comprises the following steps of weighing octadecanol, a surfactant and water at 55-65 ℃, placing the weighed surfactant into a container, adding the weighed water and glycerol, fully stirring to dissolve the surfactant, adding the octadecanol in batches or dropwise under the stirring condition, continuously stirring or fully mixing the components uniformly by an ultrasonic oscillation method, and preparing the microemulsion phase-change heat storage composite material.
As used herein, the term "supercooling" refers to a phenomenon in which a liquid substance is cooled to a freezing point without undergoing phase changes such as solidification or crystallization.
As used herein, the term "oil phase" refers to the octadecanol phase.
As used herein, the term "aqueous phase" refers to an aqueous phase, a glycerin phase, or a mixture of water and glycerin.
Medical experts have confirmed that such phase change materials can be applied to hot compress therapy. Hot compress therapy plays an important role in the treatment of soft tissue injury diseases. The therapy can increase temperature of affected part, dilate subcutaneous blood vessel, improve local blood circulation, promote local metabolism, eliminate chronic inflammation, relieve muscle spasm, relax nerve, improve tendon softness, and relieve pain and swelling. The hot compress can also lead the medicine to be absorbed locally to achieve the purpose of directly reaching the focus, thus leading the treatment to be more direct and effective.
Therefore, the invention also provides the application of the phase-change heat storage material in preparing analgesic therapeutic preparations, which can provide the phase-change temperature within the range of 35-60 ℃ and the available phase-change heat can reach 197J/g.
The phase-change heat storage composite material and the preparation method and the application thereof provided by the invention have the following advantages:
firstly, the phase change temperature of the phase change heat storage composite material is within the range of 35-60 ℃, the available phase change heat is up to 197J/g, and accounts for 95% of the total phase change heat of octadecanol, so that the phase change heat storage composite material has an application prospect in manufacturing hot compress analgesic materials;
secondly, after the phase change heat storage composite material provided by the invention is recycled for multiple times, the heat storage capacity of the phase change heat storage composite material is still good, the phase change heat storage composite material can be repeatedly used for multiple times, and the phase change heat storage composite material has practical value;
thirdly, the phase-change heat storage composite material provided by the invention has stable chemical property and is not easy to corrode a storage container;
fourthly, the octadecanol is diluted by water in the invention to prepare a composite system, which is easy to use, and meanwhile, the raw materials are convenient and easy to obtain, thereby saving a large amount of cost.
Examples
Examples and information relating to the drugs and instruments used in the comparative examples are listed below: examples and comparative DSC measurement Using a Q100 differential scanning calorimeter manufactured by Thermal Analysis, the test results were that the peak of the exothermic peak was pointed upward (exo up) and the peak of the endothermic peak was pointed downward; examples and comparative infrared measurements were carried out using the NICOLET 6700 manufactured by Thermoscientific, ATR method, with a resolution of 4cm-1And the number of scanning times is 32. The octadecanol and tween-80 used in the examples and comparative examples were all produced by the national drug group and were analytically pure. The glycerin in the examples and the comparative examples is produced by Beijing chemical plant and analyzed. The water in the examples and comparative examples was distilled water.
Example 1
Weighing 6.00g of octadecanol, 1.00g of Tween-80 and 1.5g of water at the temperature of 55-65 ℃, placing the weighed Tween-80 into a beaker, adding the weighed water into the beaker, dropwise adding the weighed octadecanol under the stirring condition, adding the weighed octadecanol for 6 times under the stirring condition, adding 1g of octadecanol each time, and stirring for 30s at intervals, so that the components are fully and uniformly mixed, and the microemulsion phase-change heat storage composite material is prepared.
(1) Performing DSC analysis on the prepared phase-change heat storage composite material, wherein the procedure is as follows:
1) keeping the temperature at 80 ℃; 2) the temperature was decreased to 0 ℃ at 10 ℃/min, and the results are shown in FIG. 2. As is evident from FIG. 2, the enthalpy is 185.6J/g, the freezing point is: 54.49 ℃ and 37.75 ℃.
(2) The prepared phase change heat storage composite material is subjected to structural characterization by infrared spectroscopy, and the result is shown in figure 3,3276cm-1，2955cm-1，2916cm-1，2848cm-1，1472cm-1，1462cm-1，1061cm-1，719cm-1。
example 2
Weighing 6.00g of octadecanol, 1.00g of Tween-80 and 2.5g of glycerol at the temperature of 55-65 ℃, placing the weighed Tween-80 into a beaker, adding the weighed glycerol into the beaker at one time, fully stirring the mixture to fully dissolve the Tween-80, adding the weighed octadecanol for 6 times under the stirring condition, adding 1g of the octadecanol each time, stirring the mixture for 30s at intervals, and continuing to stir the mixture to fully and uniformly mix the components to prepare the microemulsion-shaped phase-change heat storage composite material.
(1) Performing DSC analysis on the prepared phase-change heat storage composite material, wherein the procedure is as follows:
1) keeping the temperature at 80 ℃; 2) the temperature was decreased to 0 ℃ at 10 ℃/min, and the results are shown in FIG. 4. As is apparent from FIG. 4, the enthalpy is 197.3J/g, the freezing point is: 53.91 ℃ and 47.75 ℃.
(2) The prepared phase change heat storage composite material is subjected to structural characterization by infrared spectroscopy, and the result is shown in fig. 5. The characteristic peaks of the infrared spectrum are as follows: 3316cm-1，2956cm-1，2916cm-1，2848cm-1，1462cm-1，1062cm-1，730cm-1。
Example 3
Weighing 6.00g of octadecanol, 1.0g of Tween-80, 1g of water and 1g of glycerol at the temperature of 55-65 ℃, placing the weighed Tween-80 into a beaker, adding the weighed glycerol and water into the beaker, fully stirring the mixture to fully dissolve the Tween-80, adding the weighed octadecanol for 6 times under the stirring condition, adding 1g of octadecanol each time, stirring the mixture for 30s at intervals, and continuing to stir the mixture to fully and uniformly mix the components to prepare the microemulsion-shaped phase-change heat storage composite material.
(1) Performing DSC analysis on the prepared phase-change heat storage composite material, wherein the procedure is as follows:
1) keeping the temperature at 80 ℃; 2) the temperature was decreased to 0 ℃ at 10 ℃/min as shown in FIG. 6. As is apparent from FIG. 6, the enthalpy is 171.3J/g, the freezing point is: 53.31 ℃ and 42.41 ℃.
(2) The prepared phase change heat storage composite material is characterized by the structure by infrared spectrum, the result is shown in figure 7, and the infrared characteristic peak is as follows: 3318cm-1，2955cm-1，2916cm-1，2848cm-1，1462cm-1，1062cm-1，719cm-1。
Example 4
Weighing 6.00g of octadecanol, 1.00g of Tween-80 and 3.0g of water at the temperature of 55-65 ℃, placing the weighed Tween-80 into a beaker, adding the weighed water, adding the weighed octadecanol for 6 times under the stirring condition, adding 1g of water each time, stirring for 30s at intervals, and continuing stirring to fully and uniformly mix the components to prepare the microemulsion phase-change heat storage composite material.
(1) Performing DSC analysis on the prepared phase-change heat storage composite material, wherein the procedure is as follows:
1) keeping the temperature at 80 ℃; 2) the temperature was decreased to 0 ℃ at 10 ℃/min, and the results are shown in FIG. 8. As is apparent from FIG. 8, the enthalpy is 184.5J/g, the freezing point is: 54.08 ℃ and 46.84 ℃.
(2) The obtained phase change heat storage composite material was subjected to structural characterization by infrared spectroscopy, and the result is shown in fig. 9. 3320cm-1，2955cm-1，2916cm-1，2848cm-1，1462cm-1，1062cm-1，719cm-1。
Example 5
Weighing 6.00g of octadecanol, 1.50g of Tween-80, 1.50g of water and 1.80g of glycerol at the temperature of 55-65 ℃, putting the weighed Tween-80 into a beaker, adding the weighed water into the beaker, adding the weighed octadecanol for 6 times under the stirring condition, adding 1g of the octadecanol for each time, and stirring at intervals for 30s to prepare microemulsion, namely the phase-change heat storage composite material.
(1) Performing DSC analysis on the prepared phase-change heat storage composite material, wherein the procedure is as follows:
1) keeping the temperature at 80 ℃; 2) the temperature is reduced to 0 ℃ at the temperature of 10 ℃/min, and as is obvious from a graph 10, the enthalpy is 187.7J/g, and the freezing point is as follows: 55.12 ℃ and 43.62 ℃.
(2) The obtained phase change heat storage composite material was subjected to structural characterization by infrared spectroscopy, and the result is shown in fig. 11. 3322cm-1，2955cm-1，2916cm-1，2848cm-1，1462cm-1，1062cm-1，719cm-1。
Comparative example 1
(1) DSC analysis was performed on octadecanol with the program:
1) keeping the temperature at 60 ℃; 2) reducing the temperature to-5 ℃ at a speed of 10 ℃/min; 3) stabilizing at-5 deg.C for 5 min; 3) the temperature was raised to 60 ℃ at 10 ℃/min, and the results are shown in FIG. 1. As is evident from FIG. 1, the enthalpy is 208.6J/g, the freezing point is: 53.8 ℃ and 48.2 ℃.
Comparative example 2
Weighing 6.00g of octadecanol, 1.00g of Tween-80 and 10g of water at the temperature of 55-65 ℃, placing the weighed Tween-80 in a beaker, adding the weighed water into the beaker, adding the weighed octadecanol for 6 times under the stirring condition, adding 1g of water each time, stirring for 30s at intervals, and continuing stirring to prepare the phase change heat storage composite material.
Comparative example 3
Weighing 6.00g of octadecanol, 1.00g of Tween-80 and 1g of water at the temperature of 55-65 ℃, placing the weighed Tween-80 into a beaker, adding the weighed water into the beaker, adding the weighed octadecanol for 6 times under the stirring condition, adding 1g of the octadecanol each time, stirring for 30s at intervals, adding the octadecanol for 6 times, and continuously stirring to fully and uniformly mix the components to prepare the microemulsion phase-change heat storage composite material. The phase-change heat storage composite material has high hardness after condensation, forms hard solid and is not suitable for application.
(1) Performing DSC analysis on the prepared phase-change heat storage composite material, and 1) keeping the temperature constant at 80 ℃; 2) the temperature was decreased to 0 ℃ at 10 ℃/min, and the results are shown in FIG. 12. As is apparent from FIG. 12, the enthalpy is 190.3J/g, the freezing point is: 55.17 ℃ and 40.45 ℃.
(2) The obtained phase change heat storage composite material was subjected to structural characterization by infrared spectroscopy, and the result is shown in fig. 13. 3319cm-1，2955cm-1，2916cm-1，2848cm-1，1462cm-1，1062cm-1，719cm-1。
Although the phase-change heat storage composite material prepared by the method has a large enthalpy value and a phase-change temperature within an optimal temperature range comfortable for human bodies, the phase-change heat storage composite material is a hard solid after being condensed and causes great inconvenience in use.
Comparative example 4
Weighing 6.00g of octadecanol, 1.00g of Tween-80 and 10g of glycerol at the temperature of 55-65 ℃, placing the weighed Tween-80 in a beaker, adding the weighed glycerol, fully stirring to fully dissolve the Tween-80, adding the weighed octadecanol for 6 times under the stirring condition, adding 1g of the octadecanol each time, stirring for 30s at intervals, and continuously stirring to prepare the phase change heat storage composite material.
Comparative example 5
Weighing 6.00g of octadecanol, 1.00g of Tween-80 and 1.00g of glycerol at 55-65 ℃, placing the weighed Tween-80 into a beaker, adding the weighed glycerol, fully stirring to fully dissolve the Tween-80, adding the weighed octadecanol for 6 times under the stirring condition, adding 1g of the octadecanol each time, stirring for 30s at intervals, continuing stirring to fully and uniformly mix the components, and preparing the microemulsion phase-change heat storage composite material.
(1) Performing DSC analysis on the prepared phase-change heat storage composite material, wherein the procedure is as follows:
(1) performing DSC analysis on the prepared phase-change heat storage composite material, and 1) keeping the temperature constant at 80 ℃; 2) the temperature was decreased to 0 ℃ at 10 ℃/min, and the results are shown in FIG. 14. As is apparent from FIG. 14, the enthalpy is 206.5J/g, the freezing point is: 54.26 ℃ and 47.62 ℃.
(2) The obtained phase change heat storage composite material was subjected to structural characterization by infrared spectroscopy, and the result is shown in fig. 15. Infrared characteristic peak position: 3317cm-1，2955cm-1，2916cm-1，2848cm-1，1462cm-1，1062cm-1，719cm-1。
Although the phase-change heat storage composite material prepared by the method has a large enthalpy value and a phase-change temperature within an optimal temperature range comfortable for human bodies, the phase-change heat storage composite material is a hard solid after being condensed and causes great inconvenience in use.
Comparative example 6
Weighing 6.00g of octadecanol, 1.00g of Tween-80, 5g of water and 5g of glycerol at the temperature of 55-65 ℃, placing the weighed Tween-80 into a beaker, adding the weighed glycerol and water into the beaker, fully stirring the mixture to fully dissolve the Tween-80, adding the weighed octadecanol for 6 times under the stirring condition, adding 1g of octadecanol each time, stirring the mixture for 30s at intervals, and continuously stirring the mixture to prepare the phase-change heat storage composite material.
Comparative example 7
Weighing 6.00g of octadecanol, 1.00g of Tween-80, 3g of water and 5g of glycerol at the temperature of 55-65 ℃, placing the weighed Tween-80 into a beaker, adding the weighed glycerol and water into the beaker, fully stirring the mixture to fully dissolve the Tween-80, adding the weighed octadecanol for 6 times under the stirring condition, adding 1g of octadecanol each time, stirring the mixture for 30s at intervals, and continuously stirring the mixture.
The invention has been described in detail with reference to specific embodiments and illustrative examples, but the description is not intended to be construed in a limiting sense. Those skilled in the art will appreciate that various equivalent substitutions, modifications or improvements may be made to the technical solution of the present invention and its embodiments without departing from the spirit and scope of the present invention, which fall within the scope of the present invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. A phase change heat storage composite material contains long-chain alcohol.
2. The composite material of claim 1, wherein the phase change temperature of the phase change heat storage composite material is in the range of 35-60 ℃.
3. The composite material of claim 1 or 2, wherein the phase change heat storage composite material comprises a long chain alcohol, a surfactant andand water, glycerol or their mixture, the long-chain alcohol is C16-C24Alcohols, preferably C17-C22Alcohol, more preferably C18-C20Alcohols, especially stearyl alcohol.
4. The phase-change heat storage composite material according to one of claims 1 to 3, wherein the composite material comprises the following materials in parts by weight:
surfactant (b): 0.5 to 1.5 parts, preferably 0.6 to 1.3 parts, more preferably 0.7 to 1.1 parts, particularly 0.8 to 1.0 part;
long chain alcohols (e.g., stearyl alcohol): 6 parts of (1);
water: 0.4 to 2.5 parts, preferably 0.5 to 2.0 parts, more preferably 0.6 to 1.5 parts, and most preferably 0.8 to 1.2 parts;
preferably, the infrared spectrum characteristic peaks are as follows: 3276cm-1，2955cm-1，2916cm-1，2848cm-1，1472cm-1，1462cm-1，1061cm-1，719cm-1。
5. The phase-change heat storage composite material according to one of claims 1 to 3, wherein the composite material comprises the following materials in parts by weight:
surfactant (b): 0.5-1.5 parts;
long chain alcohols (e.g., stearyl alcohol): 6 parts of (1);
glycerol: 1.5-3 parts;
preferably, the infrared spectrum characteristic peaks are as follows: 3316cm-1，2956cm-1，2916cm-1，2848cm-1，1462cm-1，1062cm-1，730cm-1。
6. The phase-change heat storage composite material according to one of claims 1 to 3, wherein the composite material comprises the following materials in parts by weight:
preferably, the infrared spectrum characteristic peaks are as follows: 3318cm-1，2955cm-1，2916cm-1，2848cm-1，1462cm-1，1062cm-1，719cm-1。
7. The phase change heat storage composite according to one of claims 1 to 6, wherein the surfactant is a surfactant of tween series, preferably tween-80, tween-60, tween-40 and tween-20, more preferably tween-80.
8. The phase-change heat storage composite material or the method of preparing the same according to one of claims 1 to 7, which is prepared by:
weighing long-chain alcohol (such as octadecanol), surfactant and water and/or glycerol at 55-65 ℃, putting the weighed surfactant into a container, adding the weighed water and/or glycerol, fully stirring to dissolve the surfactant, adding or dropwise adding the long-chain alcohol (such as octadecanol) in batches under the stirring condition, and continuously stirring or fully mixing the components uniformly by an ultrasonic oscillation method to prepare the micro-emulsion phase-change heat storage composite material.
9. The phase-change heat storage composite material prepared by the method of claim 8 has the phase-change temperature of 35-60 ℃ and the available phase-change heat of 197J/g.
10. Use of the phase change heat storage composite material according to one of claims 1 to 9 for the preparation of analgesic therapeutic preparations or hot compress analgesic materials.
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| CN101943466A (en) * | 2010-09-03 | 2011-01-12 | 中国科学院过程工程研究所 | Phase-change heat-storage energy-saving electric water heater |
| CN103820083A (en) * | 2013-11-13 | 2014-05-28 | 北京大学 | Composite phase-change cold-accumulation material |
| US20150090422A1 (en) * | 2013-09-30 | 2015-04-02 | Panasonic Corporation | Heat storage material composition and method for using heat storage material composition |
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| CN101943466A (en) * | 2010-09-03 | 2011-01-12 | 中国科学院过程工程研究所 | Phase-change heat-storage energy-saving electric water heater |
| US20150090422A1 (en) * | 2013-09-30 | 2015-04-02 | Panasonic Corporation | Heat storage material composition and method for using heat storage material composition |
| CN103820083A (en) * | 2013-11-13 | 2014-05-28 | 北京大学 | Composite phase-change cold-accumulation material |
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Effective date of registration: 20231120 Address after: No. 88 Xianshi Road, Changshu High tech Development Zone, Suzhou City, Jiangsu Province, 215500 Patentee after: JIANGSU JICUI MOLECULE ENGINEERING RESEARCH INSTITUTE Co.,Ltd. Address before: 215500 Room 202, building 6-7, 88 Xianshi Road, Changshu high tech Development Zone, Suzhou City, Jiangsu Province Patentee before: JIANGSU JICUI MOLECULE ENGINEERING RESEARCH INSTITUTE Co.,Ltd. Patentee before: NINGHAI DEBAOLI NEW MATERIAL CO.,LTD. |
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