CN106478885A - A kind of preparation method of environment-friendly type agent for storage of coldness - Google Patents
A kind of preparation method of environment-friendly type agent for storage of coldness Download PDFInfo
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- CN106478885A CN106478885A CN201610886625.1A CN201610886625A CN106478885A CN 106478885 A CN106478885 A CN 106478885A CN 201610886625 A CN201610886625 A CN 201610886625A CN 106478885 A CN106478885 A CN 106478885A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/16—Halogen-containing compounds
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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
- C09K5/066—Cooling mixtures; De-icing compositions
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- 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
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Abstract
The invention discloses a kind of preparation method of environment-friendly type agent for storage of coldness, belong to agent for storage of coldness preparing technical field.The present invention, by wheaten starch and the stirrings such as glycerol, stands to obtain mixture, with stirring reactions such as glucose solution, ammonium sulfate, filters to obtain filtering residue after cold preservation standing, then drying, is mixed to prepare environment-friendly type agent for storage of coldness with distilled water, potassium chloride stirring.The invention has the beneficial effects as follows：Preparation process of the present invention is simple, gained agent for storage of coldness latent heat is high, reaches 336～348J/g, freezing time lengthening 10～12h；Agent for storage of coldness of the present invention is environment friendly and pollution-free, can natural degradation in the environment, degradation speed is fast.
Description
Technical field
The present invention relates to a kind of preparation method of environment-friendly type agent for storage of coldness, belong to agent for storage of coldness preparing technical field.
Background technology
With the raising of people's living standard, the demand of the perishable items such as water fruits and vegetables and chilled of frozen processed food is more next
Bigger, but these responsive to temperature type food need to be stored in low temperature environment, could keep its original local flavor and nutrition.In order to
Preferably protection product, it is ensured that reaching the quality of product and quality in consumer's handss, needs to guarantee from suitable temperature control packaging
Product begins to maintain within the scope of certain temperature.Temperature control packaging, also known as insulation packaging or thermal resistance packaging, refers to be able to ensure that temperature
Degree sensitive product in storage, transport, sell in links in consumer's handss, be in rational temperature range all the time
Interior, protect a product from extraneous heating power destruction it is ensured that a kind of specific packaged forms of product quality.Aquatic products, milk product, quick-freezing
Food, biological reagent, blood, flower equitemperature sensitive product, in transportation, need temperature control to pack to stop or to delay
Outside heat invades package interior.The barrier of general temperature control packaging is realized by the container of combined material, and agent for storage of coldness therein is then
Product is enable to be maintained at predetermined temperature, thus ensureing product quality.Agent for storage of coldness be a kind of by organic or（With）Inorganic chemical
It is translucent that thing forms（Or it is opaque）, sticky colloidal mixture, can absorb at low temperature and store a large amount of colds, and in temperature
A large amount of colds can be released, the long period keeps the low temperature environment of itself and surrounding a small range when degree is higher again.Cool Storage Technology is
It is using effective means such as various physics, chemistry, machineries, cold to be stored in agent for storage of coldness, the cold of storage is released when needing again
The process released.But it is low that current agent for storage of coldness also has latent heat, the freezing time is short, cold accumulation effects are poor, and degradation speed is asked slowly
Topic.
Content of the invention
The technical problem to be solved：Low for current agent for storage of coldness latent heat, the freezing time is short, cold accumulation effects
Difference, the drawbacks of degradation speed is slow, there is provided a kind of by wheaten starch and stirrings such as glycerol, stand to obtain mixture, with glucose
The stirring reactions such as solution, ammonium sulfate, filter to obtain filtering residue after cold preservation standing, then drying, mix system with distilled water, potassium chloride stirring
The method obtaining environment-friendly type agent for storage of coldness.Preparation process of the present invention is simple, and gained agent for storage of coldness latent heat is high, and the freezing time is long, effectively
Solve cold accumulation effects difference problem；Agent for storage of coldness of the present invention is environment friendly and pollution-free, and degradation speed is fast.
For solving above-mentioned technical problem, the present invention using technical scheme as described below is：
（1）In mass ratio 1:3, take wheaten starch and glycerol to put in container, and container is placed in water-bath, design temperature
For 80～85 DEG C, 1～2h is stirred with 130r/min, be subsequently added the acrylic acid of glycerol volume 60～70%, continue stirring 40
～50min, use quality fraction is that 20% sodium hydroxide solution adjusts pH to 7.5～8.0, stands 20～30min at room temperature；
（2）After above-mentioned standing terminates, mixture in collecting container, count by weight, take 40～45 parts of mixture, 30～35
Part mass fraction 15% glucose solution, 2～4 parts of ammonium sulfate, 10～12 parts of dehydrated alcohol, 4～6 parts of isophorone diisocyanate
Ester and 1～3 part of 2,5- dimethyl -2,5- bis-（Tert-butyl hydroperoxide）Hexane, first will be molten to mixture, mass fraction 15% glucose
Liquid and isophorone diisocyanate are added to the four-hole boiling flask with agitator, thermometer and Dropping funnel；
（3）Treat above-mentioned substance add finish, four-hole boiling flask is placed in water-bath, is protected using nitrogen, design temperature be 50～
55 DEG C, preheating 30～40min is stirred with 130r/min, then raises temperature to 80～90 DEG C, then by ammonium sulfate in above-mentioned parts by weight,
Dehydrated alcohol and 2,5- dimethyl -2,5- bis-（Tert-butyl hydroperoxide）Hexane mix homogeneously, and passed through Dropping funnel with 1
Drip/s instill four-hole boiling flask in, stirring reaction 4～8h；
（4）After above-mentioned reaction terminates, naturally cool to room temperature, four-hole boiling flask is taken out, be placed in cold room, design temperature
For 2～5 DEG C, stand 10～12h, subsequently filtered, collect filtering residue, and filtering residue is placed in 80 DEG C of baking ovens dry 4～6h, receive
Collection dried object, counts by weight, takes 50～60 parts of distilled water, 18～20 parts of dried objects and 9～12 parts of potassium chloride, put into stirring
In machine, 10～15min is stirred with 300r/min, you can obtain environment-friendly type agent for storage of coldness.
The application process of the present invention：Environment-friendly type agent for storage of coldness prepared by the present invention packs, and controls every bag of weight to be 2～5kg,
Agent for storage of coldness after pack is put into freezing 1～2h in refrigerator, subsequently the agent for storage of coldness after freezing is put in packing cratess, after testing,
Packaging the temperature inside the box can be made to be maintained at -15～-8 DEG C 1～2 day.Agent for storage of coldness cold accumulation effects of the present invention were good, in 25～28 days degradation rates
Reach more than 60.5%, degradation speed is fast, is worthy to be popularized and uses.
Compared with additive method, Advantageous Effects are the present invention：
（1）Preparation process of the present invention is simple, gained agent for storage of coldness latent heat is high, reaches 336～348J/g, freezing time lengthening 10
～12h；
（2）Agent for storage of coldness of the present invention is environment friendly and pollution-free, can natural degradation in the environment, degradation speed is fast.
Specific embodiment
First in mass ratio 1:3, take wheaten starch and glycerol to put in container, and container is placed in water-bath, if
Constant temperature degree is 80～85 DEG C, stirs 1～2h with 130r/min, is subsequently added the acrylic acid of glycerol volume 60～70%, continues
Stirring 40～50min, use quality fraction be 20% sodium hydroxide solution adjust pH to 7.5～8.0, at room temperature standing 20～
30min；Then after above-mentioned standing terminates, mixture in collecting container, count by weight, take 40～45 parts of mixture, 30
～35 parts of mass fraction 15% glucose solutions, 2～4 parts of ammonium sulfate, 10～12 parts of dehydrated alcohol, 4～6 parts of isophorones two are different
Cyanate and 1～3 part of 2,5- dimethyl -2,5- bis-（Tert-butyl hydroperoxide）Hexane, first by mixture, mass fraction 15% Fructus Vitis viniferae
Sugar juice and isophorone diisocyanate are added to the four-hole boiling flask with agitator, thermometer and Dropping funnel；Treat above-mentioned
Material interpolation finishes, and four-hole boiling flask is placed in water-bath, is protected using nitrogen, and design temperature is 50～55 DEG C, with 130r/
Min stirs preheating 30～40min, then raises temperature to 80～90 DEG C, then by ammonium sulfate, dehydrated alcohol and 2 in above-mentioned parts by weight,
5- dimethyl -2,5- bis-（Tert-butyl hydroperoxide）Hexane mix homogeneously, and passed through Dropping funnel with four mouthfuls of burnings of 1/s instillation
In bottle, stirring reaction 4～8h；Finally after above-mentioned reaction terminates, naturally cool to room temperature, four-hole boiling flask is taken out, be placed in
In cold room, design temperature is 2～5 DEG C, stands 10～12h, is subsequently filtered, and collects filtering residue, and filtering residue is placed in 80 DEG C
4～6h is dried in baking oven, collects dried object, count by weight, take 50～60 parts of distilled water, 18～20 parts of dried objects and 9～
12 parts of potassium chloride, put in blender, stir 10～15min with 300r/min, you can obtain environment-friendly type agent for storage of coldness.
Example 1
First in mass ratio 1:3, take wheaten starch and glycerol to put in container, and container is placed in water-bath, set temperature
Spend for 80 DEG C, 1h is stirred with 130r/min, be subsequently added the acrylic acid of glycerol volume 60%, continue stirring 40min, using matter
Amount fraction is that 20% sodium hydroxide solution adjusts pH to 7.5, stands 20min at room temperature；Then, after above-mentioned standing terminates, receive
Mixture in collection container, counts by weight, takes 40 parts of mixture, 30 parts of mass fraction 15% glucose solutions, 2 parts of sulphuric acid
Ammonium, 10 parts of dehydrated alcohol, 4 parts of isophorone diisocyanate and 1 part of 2,5- dimethyl -2,5- bis-（Tert-butyl hydroperoxide）Oneself
Alkane, first adds mixture, mass fraction 15% glucose solution and isophorone diisocyanate to agitator, temperature
Meter and the four-hole boiling flask of Dropping funnel；Treat that above-mentioned substance adds to finish, four-hole boiling flask is placed in water-bath, is protected using nitrogen
Shield, design temperature is 50 DEG C, stirs preheating 30min with 130r/min, then raises temperature to 80 DEG C, then by sulfur in above-mentioned parts by weight
Sour ammonium, dehydrated alcohol and 2,5- dimethyl -2,5- bis-（Tert-butyl hydroperoxide）Hexane mix homogeneously, and passed through Dropping funnel
Instill in four-hole boiling flask with 1/s, stirring reaction 4h；Finally after above-mentioned reaction terminates, naturally cool to room temperature, four mouthfuls are burnt
Bottle takes out, and is placed in cold room, and design temperature is 2 DEG C, stands 10h, is subsequently filtered, and collects filtering residue, and filtering residue is put
4h is dried in 80 DEG C of baking ovens, collects dried object, count by weight, take 50 parts of distilled water, 18 parts of dried objects and 9 parts of chlorinations
Potassium, puts in blender, stirs 10min with 300r/min, you can obtain environment-friendly type agent for storage of coldness.
Environment-friendly type agent for storage of coldness prepared by the present invention packs, and controls every bag of weight to be 2kg, the agent for storage of coldness after pack is put into
In refrigerator freeze 1h, subsequently by freezing after agent for storage of coldness put in packing cratess, after testing, can make packaging the temperature inside the box be maintained at-
15 DEG C 1 day.Agent for storage of coldness cold accumulation effects of the present invention are good, reach 60.59% in 25 days degradation rates, and degradation speed is fast, is worthy to be popularized and makes
With.
Example 2
First in mass ratio 1:3, take wheaten starch and glycerol to put in container, and container is placed in water-bath, set temperature
Spend for 83 DEG C, 2h is stirred with 130r/min, be subsequently added the acrylic acid of glycerol volume 65%, continue stirring 45min, using matter
Amount fraction is that 20% sodium hydroxide solution adjusts pH to 7.8, stands 25min at room temperature；Then, after above-mentioned standing terminates, receive
Mixture in collection container, counts by weight, takes 43 parts of mixture, 32 parts of mass fraction 15% glucose solutions, 3 parts of sulphuric acid
Ammonium, 11 parts of dehydrated alcohol, 5 parts of isophorone diisocyanate and 2 parts of 2,5- dimethyl -2,5- bis-（Tert-butyl hydroperoxide）Oneself
Alkane, first adds mixture, mass fraction 15% glucose solution and isophorone diisocyanate to agitator, temperature
Meter and the four-hole boiling flask of Dropping funnel；Treat that above-mentioned substance adds to finish, four-hole boiling flask is placed in water-bath, is protected using nitrogen
Shield, design temperature is 53 DEG C, stirs preheating 35min with 130r/min, then raises temperature to 85 DEG C, then by sulfur in above-mentioned parts by weight
Sour ammonium, dehydrated alcohol and 2,5- dimethyl -2,5- bis-（Tert-butyl hydroperoxide）Hexane mix homogeneously, and passed through Dropping funnel
Instill in four-hole boiling flask with 1/s, stirring reaction 6h；Finally after above-mentioned reaction terminates, naturally cool to room temperature, four mouthfuls are burnt
Bottle takes out, and is placed in cold room, and design temperature is 3 DEG C, stands 11h, is subsequently filtered, and collects filtering residue, and filtering residue is put
5h is dried in 80 DEG C of baking ovens, collects dried object, count by weight, take 55 parts of distilled water, 19 parts of dried objects and 11 parts of chlorinations
Potassium, puts in blender, stirs 13min with 300r/min, you can obtain environment-friendly type agent for storage of coldness.
Environment-friendly type agent for storage of coldness prepared by the present invention packs, and controls every bag of weight to be 4kg, the agent for storage of coldness after pack is put into
Freeze 2h in refrigerator, subsequently the agent for storage of coldness after freezing is put in packing cratess, after testing, packaging the temperature inside the box can be made to be maintained at -8
DEG C 2 days.Agent for storage of coldness cold accumulation effects of the present invention are good, reach 60.71% in 26 days degradation rates, and degradation speed is fast, is worthy to be popularized and uses.
Example 3
First in mass ratio 1:3, take wheaten starch and glycerol to put in container, and container is placed in water-bath, set temperature
Spend for 85 DEG C, 2h is stirred with 130r/min, be subsequently added the acrylic acid of glycerol volume 70%, continue stirring 50min, using matter
Amount fraction is that 20% sodium hydroxide solution adjusts pH to 8.0, stands 30min at room temperature；Then, after above-mentioned standing terminates, receive
Mixture in collection container, counts by weight, takes 45 parts of mixture, 35 parts of mass fraction 15% glucose solutions, 4 parts of sulphuric acid
Ammonium, 12 parts of dehydrated alcohol, 6 parts of isophorone diisocyanate and 3 parts of 2,5- dimethyl -2,5- bis-（Tert-butyl hydroperoxide）Oneself
Alkane, first adds mixture, mass fraction 15% glucose solution and isophorone diisocyanate to agitator, temperature
Meter and the four-hole boiling flask of Dropping funnel；Treat that above-mentioned substance adds to finish, four-hole boiling flask is placed in water-bath, is protected using nitrogen
Shield, design temperature is 55 DEG C, stirs preheating 40min with 130r/min, then raises temperature to 90 DEG C, then by sulfur in above-mentioned parts by weight
Sour ammonium, dehydrated alcohol and 2,5- dimethyl -2,5- bis-（Tert-butyl hydroperoxide）Hexane mix homogeneously, and passed through Dropping funnel
Instill in four-hole boiling flask with 1/s, stirring reaction 8h；Finally after above-mentioned reaction terminates, naturally cool to room temperature, four mouthfuls are burnt
Bottle takes out, and is placed in cold room, and design temperature is 5 DEG C, stands 12h, is subsequently filtered, and collects filtering residue, and filtering residue is put
6h is dried in 80 DEG C of baking ovens, collects dried object, count by weight, take 60 parts of distilled water, 20 parts of dried objects and 12 parts of chlorinations
Potassium, puts in blender, stirs 15min with 300r/min, you can obtain environment-friendly type agent for storage of coldness.
Environment-friendly type agent for storage of coldness prepared by the present invention packs, and controls every bag of weight to be 5kg, the agent for storage of coldness after pack is put into
In refrigerator freeze 2h, subsequently by freezing after agent for storage of coldness put in packing cratess, after testing, can make packaging the temperature inside the box be maintained at-
11 DEG C 1.5 days.Agent for storage of coldness cold accumulation effects of the present invention are good, reach 60.98% in 28 days degradation rates, and degradation speed is fast, be worthy to be popularized with
Use.
Claims (1)
1. a kind of preparation method of environment-friendly type agent for storage of coldness is it is characterised in that concrete preparation process is：
（1）In mass ratio 1:3, take wheaten starch and glycerol to put in container, and container is placed in water-bath, design temperature
For 80～85 DEG C, 1～2h is stirred with 130r/min, be subsequently added the acrylic acid of glycerol volume 60～70%, continue stirring 40
～50min, use quality fraction is that 20% sodium hydroxide solution adjusts pH to 7.5～8.0, stands 20～30min at room temperature；
（2）After above-mentioned standing terminates, mixture in collecting container, count by weight, take 40～45 parts of mixture, 30～35
Part mass fraction 15% glucose solution, 2～4 parts of ammonium sulfate, 10～12 parts of dehydrated alcohol, 4～6 parts of isophorone diisocyanate
Ester and 1～3 part of 2,5- dimethyl -2,5- bis-（Tert-butyl hydroperoxide）Hexane, first will be molten to mixture, mass fraction 15% glucose
Liquid and isophorone diisocyanate are added to the four-hole boiling flask with agitator, thermometer and Dropping funnel；
（3）Treat above-mentioned substance add finish, four-hole boiling flask is placed in water-bath, is protected using nitrogen, design temperature be 50～
55 DEG C, preheating 30～40min is stirred with 130r/min, then raises temperature to 80～90 DEG C, then by ammonium sulfate in above-mentioned parts by weight,
Dehydrated alcohol and 2,5- dimethyl -2,5- bis-（Tert-butyl hydroperoxide）Hexane mix homogeneously, and passed through Dropping funnel with 1
Drip/s instill four-hole boiling flask in, stirring reaction 4～8h；
（4）After above-mentioned reaction terminates, naturally cool to room temperature, four-hole boiling flask is taken out, be placed in cold room, design temperature
For 2～5 DEG C, stand 10～12h, subsequently filtered, collect filtering residue, and filtering residue is placed in 80 DEG C of baking ovens dry 4～6h, receive
Collection dried object, counts by weight, takes 50～60 parts of distilled water, 18～20 parts of dried objects and 9～12 parts of potassium chloride, put into stirring
In machine, 10～15min is stirred with 300r/min, you can obtain environment-friendly type agent for storage of coldness.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107163916A (en) * | 2017-06-09 | 2017-09-15 | 合肥嘉仕诚能源科技有限公司 | A kind of idle call agent for storage of coldness and preparation method thereof |
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| CN107163916A (en) * | 2017-06-09 | 2017-09-15 | 合肥嘉仕诚能源科技有限公司 | A kind of idle call agent for storage of coldness and preparation method thereof |
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