CN112812749A - Metal foil with capsule type composite organic phase change material and preparation method thereof - Google Patents
Metal foil with capsule type composite organic phase change material and preparation method thereof Download PDFInfo
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- CN112812749A CN112812749A CN202011633859.8A CN202011633859A CN112812749A CN 112812749 A CN112812749 A CN 112812749A CN 202011633859 A CN202011633859 A CN 202011633859A CN 112812749 A CN112812749 A CN 112812749A
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- phase change
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- change material
- metal foil
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- 239000002131 composite material Substances 0.000 title claims abstract description 68
- 239000002184 metal Substances 0.000 title claims abstract description 65
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 65
- 230000008859 change Effects 0.000 title claims abstract description 55
- 239000011888 foil Substances 0.000 title claims abstract description 41
- 239000000463 material Substances 0.000 title claims abstract description 31
- 239000012074 organic phase Substances 0.000 title claims abstract description 29
- 239000002775 capsule Substances 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000012782 phase change material Substances 0.000 claims abstract description 36
- 238000009713 electroplating Methods 0.000 claims abstract description 21
- 238000007747 plating Methods 0.000 claims abstract description 18
- 239000010410 layer Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000002344 surface layer Substances 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims description 25
- 238000000576 coating method Methods 0.000 claims description 25
- 239000011162 core material Substances 0.000 claims description 25
- 239000012071 phase Substances 0.000 claims description 23
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 18
- 229930195729 fatty acid Natural products 0.000 claims description 18
- 239000000194 fatty acid Substances 0.000 claims description 18
- 150000004665 fatty acids Chemical class 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 229910002804 graphite Inorganic materials 0.000 claims description 12
- 239000010439 graphite Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 229920006395 saturated elastomer Polymers 0.000 claims description 12
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 9
- 229930195733 hydrocarbon Natural products 0.000 claims description 7
- 150000002430 hydrocarbons Chemical class 0.000 claims description 7
- 239000006260 foam Substances 0.000 claims description 6
- 230000005496 eutectics Effects 0.000 claims description 5
- 239000004094 surface-active agent Substances 0.000 claims description 5
- 239000004215 Carbon black (E152) Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000002270 dispersing agent Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 5
- 238000001556 precipitation Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 150000002739 metals Chemical class 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 description 7
- 239000011247 coating layer Substances 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011232 storage material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000009878 intermolecular interaction Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 238000002464 physical blending Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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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
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D15/00—Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/06—Wires; Strips; Foils
- C25D7/0614—Strips or foils
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention relates to a metal foil with a capsule type composite organic phase change material and a preparation method thereof. Therefore, the metal plating layer with a structure similar to a capsule structure formed on the surface layer of the metal foil can effectively control the precipitation of the core phase-change material, enhance the bearing capacity of physical acting force, and obviously improve the heat-conducting property and the cycle life of the phase-change material; and the phase-change metal foil is prepared by adopting the composite electroplating technology, so that the whole preparation method is simplified in operation, the selection range of metal matrixes and plating metals is wide, the process is easy to control, and the product quality is improved.
Description
Technical Field
The invention belongs to the technical field of phase-change materials, and particularly relates to a metal foil with a capsule type composite organic phase-change material and a preparation method thereof.
Background
In recent years, organic heat storage materials are dispersed into solid and liquid spheres by a capsule packaging technology, the composite heat storage material with the outer layer coated with high polymer develops rapidly, the diameter of the obtained capsule particle is usually 1-1000 mu m, the phase change material of the core is changed into liquid at high temperature, but the outer layer of the high polymer with the surface coating is kept solid, the overall shape of the material is still solid particle, the production process of micro-encapsulation is mature, and the micro-encapsulation can be applied to industrial large-scale production. However, the applicant found that: the heat conductivity of the polymer shell is poor, so that the heat conductivity of the whole material is reduced, and the cycle performance of the composite material is reduced due to volume change in the phase change process. In addition, the preparation of the shaped phase change material by using a physical blending method becomes a better solution, the organic phase change material is fixed in a net-shaped polymer structure through intermolecular interaction, hydrogen bond action and the like, a stable solid shape is still kept macroscopically, and a solid-liquid phase change process is actually generated.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the metal foil with the capsule type composite organic phase change material and the preparation method thereof, wherein the metal foil can effectively control the precipitation of the core phase change material, enhances the bearing capacity of physical acting force, obviously improves the heat-conducting property and the cycle life of the phase change material, and has the advantages of simple preparation method, wide selection range of metal matrix and plating metal and easy process control.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention relates to a metal foil with a capsule type composite organic phase change material, which comprises a metal foil substrate, wherein a composite coating is arranged on the surface layer of the metal foil substrate, the composite coating comprises a composite organic phase change material and a metal coating for coating the composite organic phase change material, and the metal coating and the metal foil substrate are fixed into a whole.
Further, the composite organic phase change material is prepared from an insoluble phase change core material and expanded graphite or foam graphite, wherein the insoluble phase change core material is a multi-eutectic fatty acid or an aliphatic hydrocarbon mixture.
Furthermore, the insoluble phase change core material is a multi-eutectic fatty acid or fatty hydrocarbon mixture prepared by taking a plurality of insoluble saturated higher fatty acids or insoluble saturated higher fatty hydrocarbons as a base phase change material.
Further, the metal plating layer is a zinc plating layer or a copper plating layer.
The invention also provides a preparation method of the metal foil with the capsule type composite organic phase change material, which comprises the steps of adding an insoluble phase change core material into electroplating solution, adding a proper amount of surfactant, carrying out composite electroplating on the metal foil under the condition of strong stirring to form the composite organic phase change material in the electroplating solution, and forming a composite coating containing the composite organic phase change material on the surface of the metal foil;
further, the preparation method comprises the following steps:
(1) preparing an insoluble phase change core material, namely adopting a plurality of insoluble saturated higher fatty acids or insoluble saturated higher aliphatic hydrocarbons as a basic phase change material, then estimating the composition proportion and the theoretical thermal property of the eutectic fatty acids or the aliphatic hydrocarbons according to a theoretical formula, and preparing a multi-element eutectic fatty acid or aliphatic hydrocarbon mixture as the phase change core material of the composite phase change material;
(2) preparing insoluble composite phase change material, namely preparing the composite phase change material by using expanded graphite or foam graphite and the phase change core material;
(3) and (3) preparing a composite coating by composite electroplating, namely uniformly dispersing the composite phase-change material in electroplating solution, and then obtaining the metal coating containing the composite phase-change material on the surface of the metal foil by a composite electroplating method.
Further, the surfactant is a dispersant.
The invention mainly has the following beneficial effects:
the metal coating layer with a structure similar to a capsule structure formed on the surface layer of the metal foil improves the overall heat-conducting property, can effectively control the precipitation of the core phase-change material, enhances the bearing capacity of physical acting force, obviously improves the heat-conducting property of the phase-change material and prolongs the cycle life; and the phase-change metal foil is prepared by adopting the composite electroplating technology, so that the whole preparation method is simplified in operation, the selection range of metal matrixes and plating metals is wide, the process is easy to control, and the product quality is improved.
Drawings
Fig. 1 is a schematic flow chart of a preparation method of a metal foil with a capsule type compound organic phase change material according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The metal foil with the capsule type composite organic phase change material comprises a metal foil substrate, wherein a composite coating is arranged on the surface layer of the metal foil substrate, the composite coating comprises the composite organic phase change material and a metal coating for coating the composite organic phase change material, the composite coating is similar to a capsule structure, and the metal coating and the metal foil substrate are fixed into a whole. The composite organic phase change material is prepared from an insoluble phase change core material and expanded graphite or foam graphite; the insoluble phase change core material can be one or more of a low-temperature phase change material, a medium-temperature phase change material and a high-temperature phase change material, and specifically can be a multi-eutectic fatty acid or fatty hydrocarbon mixture, for example, a multi-eutectic fatty acid or fatty hydrocarbon mixture prepared by using a plurality of insoluble saturated higher fatty acids or insoluble saturated higher fatty hydrocarbons as a base phase change material; the metal plating layer is a zinc plating layer or a copper plating layer.
The invention also provides a preparation method of the metal foil with the capsule type composite organic phase change material, which comprises the steps of adding the insoluble phase change core material into the electroplating solution, adding a proper amount of surfactant (preferably dispersant), then carrying out composite electroplating on the metal foil under the condition of strong stirring, forming the composite organic phase change material in the electroplating solution, and forming a composite coating containing the composite organic phase change material on the surface of the metal foil. As shown in fig. 1, the preparation method of the present invention specifically includes the following steps:
s100, preparing an insoluble phase change core material, namely adopting a plurality of insoluble saturated higher fatty acids or insoluble saturated higher aliphatic hydrocarbons as a basic phase change material, then estimating the composition proportion and theoretical thermal property of the eutectic fatty acids or the aliphatic hydrocarbons according to a theoretical formula, and preparing a multi-eutectic fatty acid or aliphatic hydrocarbon mixture as the phase change core material of the composite phase change material.
S200, preparing an insoluble composite phase change material, namely preparing the composite phase change material by using expanded graphite or foam graphite and the phase change core material.
S300, composite plating is carried out to prepare a composite plating layer, the composite phase-change material is uniformly dispersed in the electroplating solution, and then the metal plating layer containing the composite phase-change material is obtained on the surface of the metal foil by a composite plating method.
Thus, the metal coating layer with the similar capsule structure formed on the metal foil surface layer of the capsule type compound organic phase change material has improved overall heat conduction performance (the phase change material is directly embedded in a tiny ball cage formed by coating metal by adopting a compound electroplating technical method, the phase change core material is dispersed in graphite powder and added with adhesive, then the adhesive containing the phase change material is coated on a plastic film or a metal foil, the heat conduction performance is obviously improved), the precipitation of the core phase change material can be effectively controlled at the same time (the quality of the compound coating layer can be calculated by the mass difference between a plated test piece and a plated test piece, and the quality of the plated metal in the compound coating layer can be calculated by measuring the concentration change of the plated metal ions in the electroplating solution, so that the quality of the compound type organic phase change material in the compound coating layer can be calculated), the bearing capacity of physical acting force is enhanced, and the cycle life is prolonged; and the phase-change metal foil is prepared by adopting the composite electroplating technology, so that the whole preparation method is simplified in operation, the selection range of metal matrixes and plating metals is wide, the process is easy to control, and the product quality is improved.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (7)
1. The metal foil with the capsule type composite organic phase change material is characterized by comprising a metal foil substrate, wherein a composite coating is arranged on the surface layer of the metal foil substrate, the composite coating comprises the composite organic phase change material and a metal coating for coating the composite organic phase change material, and the metal coating and the metal foil substrate are fixed into a whole.
2. The metal foil according to claim 1, wherein the composite organic phase change material is made of an insoluble phase change core material, and expanded graphite or graphite foam, wherein the insoluble phase change core material is a multi-eutectic fatty acid or an aliphatic hydrocarbon mixture.
3. The metal foil as claimed in claim 2, wherein the insoluble phase change core material is a multi-eutectic fatty acid or fatty hydrocarbon mixture made using a plurality of insoluble saturated higher fatty acids or insoluble saturated higher fatty hydrocarbons as a base phase change material.
4. A metal foil according to claim 1, 2 or 3, wherein the metallic plating layer is a zinc plating layer or a copper plating layer.
5. A method for preparing a metal foil with a capsule type composite organic phase change material as claimed in any one of claims 1 to 4, wherein an insoluble phase change core material is added into an electroplating solution, an appropriate amount of surfactant is added, and then composite electroplating is performed on the metal foil under a strong stirring condition, so that the composite organic phase change material is formed in the electroplating solution, and a composite coating containing the composite organic phase change material is formed on the surface of the metal foil.
6. The method of claim 5, comprising the steps of:
(1) preparing an insoluble phase change core material, namely adopting a plurality of insoluble saturated higher fatty acids or insoluble saturated higher aliphatic hydrocarbons as a basic phase change material, then estimating the composition proportion and the theoretical thermal property of the eutectic fatty acids or the aliphatic hydrocarbons according to a theoretical formula, and preparing a multi-element eutectic fatty acid or aliphatic hydrocarbon mixture as the phase change core material of the composite phase change material;
(2) preparation of insoluble composite phase change material-preparing composite phase change material by using expanded graphite (or foam graphite) and the phase change core material;
(3) and (3) preparing a composite coating by composite electroplating, namely uniformly dispersing the composite phase-change material in electroplating solution, and then obtaining the metal coating containing the composite phase-change material on the surface of the metal foil by a composite electroplating method.
7. The method according to claim 6, wherein the surfactant is a dispersant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011633859.8A CN112812749A (en) | 2020-12-31 | 2020-12-31 | Metal foil with capsule type composite organic phase change material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011633859.8A CN112812749A (en) | 2020-12-31 | 2020-12-31 | Metal foil with capsule type composite organic phase change material and preparation method thereof |
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| CN112812749A true CN112812749A (en) | 2021-05-18 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006053405A1 (en) * | 2004-11-18 | 2006-05-26 | K.U. Leuven Research And Development | Composite material |
| JP2013108119A (en) * | 2011-11-18 | 2013-06-06 | Doshisha | Composite plating method |
| CN104099657A (en) * | 2014-06-25 | 2014-10-15 | 北京理工大学 | Preparation method of MCrAlY alloy coating layer |
| CN104371664A (en) * | 2014-11-04 | 2015-02-25 | 镇江新梦溪能源科技有限公司 | Novel composite organic phase-change heat storage material and preparation method thereof |
| CN104411127A (en) * | 2014-11-28 | 2015-03-11 | 英业达科技有限公司 | Enclosure |
| CN108301025A (en) * | 2018-03-27 | 2018-07-20 | 北京理工大学 | Min-cutter of the coating containing abrasive material and its preparation method and application |
| CN111187595A (en) * | 2019-12-30 | 2020-05-22 | 中国纺织科学研究院有限公司 | Metal-coated organic phase change energy storage material and preparation method thereof |
-
2020
- 2020-12-31 CN CN202011633859.8A patent/CN112812749A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006053405A1 (en) * | 2004-11-18 | 2006-05-26 | K.U. Leuven Research And Development | Composite material |
| JP2013108119A (en) * | 2011-11-18 | 2013-06-06 | Doshisha | Composite plating method |
| CN104099657A (en) * | 2014-06-25 | 2014-10-15 | 北京理工大学 | Preparation method of MCrAlY alloy coating layer |
| CN104371664A (en) * | 2014-11-04 | 2015-02-25 | 镇江新梦溪能源科技有限公司 | Novel composite organic phase-change heat storage material and preparation method thereof |
| CN104411127A (en) * | 2014-11-28 | 2015-03-11 | 英业达科技有限公司 | Enclosure |
| CN108301025A (en) * | 2018-03-27 | 2018-07-20 | 北京理工大学 | Min-cutter of the coating containing abrasive material and its preparation method and application |
| CN111187595A (en) * | 2019-12-30 | 2020-05-22 | 中国纺织科学研究院有限公司 | Metal-coated organic phase change energy storage material and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| L.STAPPERS ET AL.: "Novel composite coatings for heat sink applications", 《JOURNAL OF THE ELECTROCHEMICAL SOCIETY》 * |
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