CN106543973B - Low-temperature composite phase-change cold storage material - Google Patents
Low-temperature composite phase-change cold storage material Download PDFInfo
- Publication number
- CN106543973B CN106543973B CN201610905084.2A CN201610905084A CN106543973B CN 106543973 B CN106543973 B CN 106543973B CN 201610905084 A CN201610905084 A CN 201610905084A CN 106543973 B CN106543973 B CN 106543973B
- Authority
- CN
- China
- Prior art keywords
- cold storage
- phase
- storage material
- low
- change
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The invention relates to the field of phase-change materials, in particular to a low-temperature composite phase-change cold storage material. The material is prepared from 43.4 mass percent of trimethylolpropane aqueous solution and 15 mass percent of ammonium chloride aqueous solution, the two raw material solutions are uniformly mixed according to the mass ratio of 1:1, and then the mixture is kept stand for a period of time to obtain the low-temperature composite phase change cold storage material. The cold storage material is in a transparent liquid form and has no corrosiveness; the phase-change material has the advantages of-18.42 ℃ of phase-change temperature, 195.3J/g of latent heat of phase change, almost no supercooling degree, stable chemical property, wide raw material source, low cost, no toxicity or harm, convenient preparation, suitability for industrial popularization and certain application potential in refrigeration and transportation.
Description
Technical Field
The invention relates to the technical field of phase-change materials, in particular to a low-temperature composite phase-change cold storage material.
Background
Along with the improvement of people's living standard, to the quality of giving birth to bright food more and more attach attention to, for the quality of guaranteeing the bright food of giving birth to, especially the quality of the bright products of giving birth to such as marine product, meat, the cold-storage agent of low temperature phase transition has played indispensable effect in the low temperature transportation delivery process, and greatly reduced the rotten risk of the bright food of giving birth to.
At present, researches on phase change cold storage agents are mostly concentrated on the aspect of solid-liquid phase change, and many scholars utilize aqueous solution of hydrated salt as an inorganic phase change cold storage agent, the phase change latent heat of the inorganic phase change cold storage agent is large, but the problems of serious phase separation, high supercooling degree and the like exist, and the change of phase change temperature is not regular and is not beneficial to adjustment, for example, as described in patent CN85108305, a refrigerating substance is formed by mixing ice, salt or ice and calcium chloride or mixing ice, salt and calcium chloride, although the inorganic phase change cold storage agent has the advantages of low cost, simple processing and the like, the refrigerating effect is not ideal, and the inorganic phase change cold storage agent has corrosiveness on a container, so that the application of the inorganic phase change cold; for example, the formula of the cold storage material disclosed in patent CN 102942905A, in which the phase transition temperature is about-15 ℃, the used medicines include ammonium chloride, dipotassium hydrogen phosphate, sodium hydroxyethyl cellulose, nano titanium dioxide, deionized water and the like, and the cold storage material has various varieties and complicated preparation process; the added medicines are mainly used for reducing the supercooling degree of the cold storage material and weakening phase separation, do not contribute much to the cold storage energy of the material, and reduce the phase change latent heat of the raw material by adding some medicines. The organic phase-change material just overcomes the defects of supercooling degree and phase separation of inorganic materials, and most organic phase-change materials have no supercooling degree and phase separation phenomenon. Therefore, research on organic and inorganic composite is an important direction in the field of phase change cold storage at present.
Disclosure of Invention
In view of the above-mentioned disadvantages of the prior art, an object of the present invention is to provide a low-temperature composite phase change cold storage material which has almost no supercooling degree and is chemically stable.
In order to achieve the purpose, the invention adopts the following technical scheme:
the low-temperature composite phase-change cold storage material is prepared from two raw material solutions, namely 43.4 mass percent of trimethylolpropane aqueous solution and 15 mass percent of ammonium chloride aqueous solution, and the raw material solutions are uniformly mixed according to the mass ratio of 1:1 and then are kept stand for a period of time to obtain the low-temperature composite phase-change cold storage material.
Further, the phase change temperature of the low-temperature composite phase change cold storage material is-18.42 ℃, and the phase change latent heat is 195.3J/g.
Preferably, the period of time is 2 to 10 minutes.
Due to the adoption of the technical scheme, the phase change cold storage material disclosed by the invention has almost no supercooling degree, stable chemical properties, wide raw material sources, low cost, no toxicity, no harm and convenience in preparation, is suitable for industrial popularization, and has a certain application potential in the aspect of refrigeration and transportation.
Drawings
Fig. 1 is a DSC curve of an embodiment of the phase change cold storage material of the present invention.
Wherein: 1 is the starting point temperature; 2 is peak point temperature and heat absorption; 3 is the end point temperature; and 4 is latent heat of phase change.
Detailed Description
The present invention will be described in further detail with reference to examples. The invention belongs to a ternary complex, comprising 43.4% trimethylolpropane aqueous solution and 15% ammonium chloride aqueous solution. During preparation, 43.4 mass percent of trimethylolpropane aqueous solution and 15 mass percent of ammonium chloride aqueous solution are prepared, then the two solutions are uniformly mixed according to the mass ratio of 1:1, and the mixture is kept stand for 2-10 minutes to obtain the low-temperature composite phase change cold storage material, wherein the preferred embodiment adopts 5 minutes of standing. The DSC test curve of the phase change cold storage material shown in figure 1 has a phase change starting point temperature 1 of-18.42 ℃, peak temperature and heat absorption 2 of-8.75 ℃ and 2.752mW/mg respectively, a phase change ending point temperature 3 of-1.1 ℃ and a phase change latent heat value 4 (represented by shaded area) of 195.3J/g.
Although embodiments of the present invention have been shown and described, the present invention is not limited to the above embodiments, and any modifications, equivalent substitutions and improvements made within the knowledge of those skilled in the art and within the spirit and principle of the present invention should be covered within the technical scope of the present invention as claimed.
Claims (1)
1. The low-temperature composite phase-change cold storage material is characterized in that: the low-temperature composite phase change cold storage material is prepared from two raw material solutions, namely 43.4% by mass of trimethylolpropane aqueous solution and 15% by mass of ammonium chloride aqueous solution, and is prepared by uniformly mixing the raw material solutions according to the mass ratio of 1:1 and standing for 5min, wherein the phase change temperature of the low-temperature composite phase change cold storage material is-18.42 ℃, and the phase change latent heat is 195.3J/g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610905084.2A CN106543973B (en) | 2016-10-17 | 2016-10-17 | Low-temperature composite phase-change cold storage material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610905084.2A CN106543973B (en) | 2016-10-17 | 2016-10-17 | Low-temperature composite phase-change cold storage material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106543973A CN106543973A (en) | 2017-03-29 |
| CN106543973B true CN106543973B (en) | 2020-05-15 |
Family
ID=58369091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610905084.2A Active CN106543973B (en) | 2016-10-17 | 2016-10-17 | Low-temperature composite phase-change cold storage material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106543973B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114181669A (en) * | 2021-12-27 | 2022-03-15 | 江苏金合能源科技有限公司 | Low-temperature phase change cold storage material suitable for medical cold chain transportation and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104357024A (en) * | 2014-11-13 | 2015-02-18 | 广州大学 | Medium/low-temperature composite phase-change cold accumulation agent and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IE49097B1 (en) * | 1978-11-10 | 1985-07-24 | Ic Gas Int Ltd | Thermal energy storage material |
| US4572864A (en) * | 1985-01-04 | 1986-02-25 | The United States Of America As Represented By The United States Department Of Energy | Composite materials for thermal energy storage |
| JPH11181416A (en) * | 1997-10-15 | 1999-07-06 | Mitsubishi Chemical Corp | Heat reservoir composition |
-
2016
- 2016-10-17 CN CN201610905084.2A patent/CN106543973B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104357024A (en) * | 2014-11-13 | 2015-02-18 | 广州大学 | Medium/low-temperature composite phase-change cold accumulation agent and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106543973A (en) | 2017-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105038715A (en) | Hydrous salt cold storage agent with phase-transition temperature of 5-8 DEG C and preparation method thereof | |
| CN104726071B (en) | A kind of compound cryosar agent for storage of coldness and its preparation method and application | |
| CN107418521B (en) | Ternary phase change cold storage material and preparation method thereof | |
| CN106675527B (en) | A kind of nano-cellulose composite hydrogel based phase-change material and its preparation method and application | |
| CN104726072B (en) | A kind of high-efficiency environment friendly low temperature composite phase-change agent for storage of coldness and its preparation method and application | |
| CN106753255A (en) | A kind of phase transition temperature is 26~28 DEG C of low-temperature phase-change material | |
| CN102144742A (en) | Rice ball modifier and preparation method thereof | |
| CN105601819A (en) | Low-temperature gel-state phase-changing cold storage agent and preparation method thereof | |
| CN106543973B (en) | Low-temperature composite phase-change cold storage material | |
| CN104927780A (en) | Cold accumulating agent and preparation method thereof | |
| CN102942905B (en) | Low temperature phase change cool storage agent and preparation method thereof | |
| CN109370538B (en) | Phase change coolant for refreshing pleurotus eryngii and preparation method thereof | |
| CN109609098A (en) | A kind of composite phase-change heat-storage material and its preparation | |
| CN107722944B (en) | Jelly-like gel type composite low-temperature phase change cold storage material and preparation method thereof | |
| CN105950570A (en) | Preservation method for bacteriophage | |
| CN103773319B (en) | A kind of preparation method of composite phase-change cold storage agent | |
| CN110835521A (en) | Phase change cold storage agent at-28 ℃ and preparation method thereof | |
| CN110692648A (en) | Method for preparing high-concentration high-stability unitary chlorine dioxide aqueous solution | |
| CN103773320B (en) | The preparation method of the composite phase-change cold storage agent of organic aqueous solution | |
| CN105395313A (en) | Manufacturing method of ultralow-temperature instantaneous cooling ice bag | |
| CN202209844U (en) | Device quickly freezing blood plasma | |
| CN103059816A (en) | Efficient phase change energy storage materials and preparation method thereof | |
| NL2026475B1 (en) | Phase change cold storage agent for strawberry preservation and method for preparing the same | |
| AU2020103359A4 (en) | Phase change cold storage agent for shiitake mushroom preservation and method for preparing the same | |
| CN103254876B (en) | A kind of transformation temperature is the phase change material of-15 DEG C |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |