CN103013452B - Low-temperature eutectic liquid and preparation method thereof - Google Patents
Low-temperature eutectic liquid and preparation method thereof Download PDFInfo
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- CN103013452B CN103013452B CN201110282488.8A CN201110282488A CN103013452B CN 103013452 B CN103013452 B CN 103013452B CN 201110282488 A CN201110282488 A CN 201110282488A CN 103013452 B CN103013452 B CN 103013452B
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Abstract
The present invention relates to it is a kind of be used for refrigerate, frozen product transport preservation Low-temperature eutectic liquid and its compound method, mainly it is made up of the raw material of following percentage by weight, carbomer 0.06%~0.15%, sodium carboxymethylcellulose 0.01%~0.04%, sodium hydroxide 0.03%~0.06%, water 99.75%~99.9%.Water and carbomer are proportionally added into reactor, is stirred to being completely dissolved, is added sodium carboxymethylcellulose while stirring, be eventually adding sodium hydroxide solution, is well mixed.This product is food grade materials, is had no toxic side effect, environmentally friendly, pollution-free, and preparation is simple and convenient, and cost is low, suitable for industrialized production.
Description
Technical field：
The present invention relates to a kind of agent for storage of coldness, more particularly to it is a kind of be used to refrigerating, the low temperature eutectic of frozen product transport preservation
Liquid and its compound method.
Background technology：
Be presently used for refrigeration, frozen product transport preservation agent for storage of coldness species it is various.Such as：Japan Patent JP57023670
A kind of agent for storage of coldness is disclosed, its composition is the mixed aqueous solution of sodium chloride and ammonium nitrate；Japan Patent JP57174670 is disclosed
A kind of agent for storage of coldness, main component are aqueous sodium formate solution, are suitably added preservative；United States Patent (USP) US4689164 discloses one kind
Eutectic salting liquid agent for storage of coldness, it is the mixed aqueous solution of sodium sulphate, potassium chloride, ammonium chloride；European patent EP 260759 is disclosed to be stored
Cryogen is the mixed aqueous solution of potassium chloride and ammonium chloride；European patent EP 260772 discloses the eutectic of potassium chloride, water, ethanol
Thing.Although above agent for storage of coldness belongs to eutectic salt cold-storage agent together, but cold storage capacity is less, and crystalline temperature is relatively low, the mistake that cold-storage phase transformation occurs
Cold degree is larger, and cost is higher, and cold release can not be lasting.
The content of the invention：
In order to solve the above problems, a kind of cold storage capacity of present invention offer is big, degree of subcooling is small, the Low-temperature eutectic liquid of low cost
And its compound method.
The technical scheme is that：Low-temperature eutectic liquid, mainly it is made up of the raw material of following percentage by weight, carbomer
0.06%~0.15%, sodium carboxymethylcellulose 0.01%~0.04%, sodium hydroxide 0.03%~0.06%., water 99.75%
~99.9%.
Preferably, the percentage by weight of raw material is carbomer 0.1%, sodium carboxymethylcellulose 0.02%, sodium hydroxide
0.05%th, water 99.83%.
The preparation method of Low-temperature eutectic liquid, step are as follows：Water and carbomer are proportionally added into reactor, is stirred to complete
Fully dissolved, sodium carboxymethylcellulose is added while stirring, be eventually adding sodium hydroxide solution, be well mixed.
Preferably, after adding water and Carmomer, stirring 15-30 minutes to being completely dissolved, form suspension.
It is highly preferred that being proportionally added into completely reacted suspension and water, 50 degree are heated to while stirring, uniformly mixes 25-
30 points.
Preferably, after adding sodium carboxymethylcellulose, 25-30 points are uniformly mixed.
The Low-temperature eutectic liquid of the present invention has the advantage that compared with existing agent for storage of coldness：
1) draw materials, prepare it is simple, it is low cost, environmental protection, pollution-free.
2) needing solidification point point, the Refrigerating Machinery coefficient of performance (COP) is high, and energy turns with respect to 5 DEG C ± 1 DEG C of eutectic temperature point
It is high to change utilization rate, than traditional cool storage medium energy-conservation more than 30%.
3) cold storage capacity is big, is 275.75KJ/KG, it has been disclosed that agent for storage of coldness cold storage capacity be below as 250.00KJ/KG.Repeatedly
Solidification dissolving, be not in be separated to reduce with dynamic performance of ice storage.
4) it is in 2 DEG C to 8 DEG C temperature range specific heats：23.70KJ/KGK, hence it is evident that higher than other agent for storage of coldness, therefore unit
The weight agent for storage of coldness temperature control time is grown.Pack to be placed in refrigerator-freezer respectively with water with one kilogram of this cool storage medium and freeze, after taking-up,
It is placed in the environment of 30 degree of environment temperature, eutectic liquid of the invention melted in 10 hours to be finished, and water only melted by 5.5 hours
Change finishes.
5) this agent for storage of coldness freezing expansion rate is 5.5%, and water expansion rate is 9%, and other agent for storage of coldness expansion rates are in 6.5---
Between 8.1.Therefore, eutectic liquid of the invention it is filling measured in the big small container of relative volume it is bigger.Manufacture has cold-storage work(
The cold-storage accessory of energy, low is required to the compression resistance of packing container, it is not harsh to packing instructions.
6) corrosivity is small, copper sheet, lead flake, aluminium flake is placed in the eutectic liquid of the present invention, and half is placed under normal temperature
Nian Hou, these metals still keep original gloss, and therefore, eutectic liquid of the invention is made various temperature controls using packaging container of metal and set
It is standby, service life length.
Embodiment：
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Low-temperature eutectic liquid, mainly it is made up of the raw material of following percentage by weight, carbomer 0.06%~0.15%, carboxymethyl
Sodium cellulosate 0.01%~0.04%, sodium hydroxide 0.03%~0.06%., water 99.75%~99.9%.
Most preferred embodiment is that the percentage by weight of raw material is carbomer 0.1%, sodium carboxymethylcellulose 0.02%, hydrogen-oxygen
Change sodium 0.05%, water 99.83%.
The preparation method of Low-temperature eutectic liquid, step are as follows：Water and carbomer are proportionally added into reactor, is stirred to complete
Fully dissolved, sodium carboxymethylcellulose is added while stirring, be eventually adding sodium hydroxide solution, be well mixed.
Most preferred embodiment is, after adding water and Carmomer, stirring 15-30 minutes to being completely dissolved, form suspension.Then
Completely reacted suspension and water are proportionally added into, is heated to 50 degree while stirring, uniformly mixes 25-30 points.In addition, add carboxylic first
After base sodium cellulosate, 25-30 points are uniformly mixed.
The eutectic liquid technical performance that preferred embodiment obtains is as follows：
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (1)
1. for refrigerate, frozen product transport preservation Low-temperature eutectic liquid, it is characterised in that：Mainly there is following percentage by weight
Raw material forms, carbomer 0.1%, sodium carboxymethylcellulose 0.02%, sodium hydroxide 0.05%, water 99.83%；
Wherein, the compound method of the Low-temperature eutectic liquid is：After adding water and carbomer, stirring 15-30 minutes to being completely dissolved,
Form suspension；Then completely reacted suspension and water are proportionally added into, 50 degree is heated to while stirring, uniformly mixes 25-30
Minute；After adding sodium carboxymethylcellulose, 25-30 points are well mixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110282488.8A CN103013452B (en) | 2011-09-22 | 2011-09-22 | Low-temperature eutectic liquid and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110282488.8A CN103013452B (en) | 2011-09-22 | 2011-09-22 | Low-temperature eutectic liquid and preparation method thereof |
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| Publication Number | Publication Date |
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| CN103013452A CN103013452A (en) | 2013-04-03 |
| CN103013452B true CN103013452B (en) | 2018-01-05 |
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| CN201110282488.8A Active CN103013452B (en) | 2011-09-22 | 2011-09-22 | Low-temperature eutectic liquid and preparation method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111748321A (en) * | 2019-03-28 | 2020-10-09 | 深圳市爱能森科技有限公司 | Low-temperature phase change cold storage material and preparation method thereof |
| CN113265229B (en) * | 2021-06-04 | 2022-10-14 | 南方科技大学 | Phase-change gel material and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101070463A (en) * | 2007-05-23 | 2007-11-14 | 刘树岭 | Snow-texture heat-accumulating agent and cold-heat-accumulating product containing said agent |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5385688A (en) * | 1993-01-08 | 1995-01-31 | American Polywater Corporation | Antifreeze gel composition for use in a cable conduit |
| FR2826107A1 (en) * | 2001-06-19 | 2002-12-20 | M D I C | Cold pack useful for cryotherapy or food preservation comprises sealed flexible casing containing aqueous composition, hydrocolloid thickener and freezing point depressant |
| GB2470619A (en) * | 2009-02-11 | 2010-12-01 | Artica Technologies Ltd | Phase change material compound and pack |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101070463A (en) * | 2007-05-23 | 2007-11-14 | 刘树岭 | Snow-texture heat-accumulating agent and cold-heat-accumulating product containing said agent |
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| CN103013452A (en) | 2013-04-03 |
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Owner name: SHANGHAI HANXUE COLD CHAIN EQUIPMENT TECHNOLOGY CO Free format text: FORMER OWNER: SHANGHAI LEADING COLD CHAIN SCIENCE CO., LTD. Effective date: 20140709 |
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Effective date of registration: 20140709 Address after: 201516, Jinshan Industrial Zone, Shanghai, No. 9, No. 4, one floor Applicant after: SHANGHAI HANXUE COLD CHAIN EQUIPMENT TECHNOLOGY CO., LTD. Address before: 201102, room 1-3, No. 420, Lane 107, ancient beauty West Road, Shanghai, Minhang District Applicant before: Shanghai Leading Cold Chain Science Co., Ltd. |
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Effective date of registration: 20171212 Address after: 201516, Jinshan Industrial Zone, Shanghai, No. 9, No. 4, one floor Applicant after: Shanghai Leading Cold Chain Science Co., Ltd. Address before: 201516, Jinshan Industrial Zone, Shanghai, No. 9, No. 4, one floor Applicant before: SHANGHAI HANXUE COLD CHAIN EQUIPMENT TECHNOLOGY CO., LTD. |
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