CN109377860A - A kind of cold chain storage and transportation surveillance tag and preparation method thereof being irreversibly changed - Google Patents
A kind of cold chain storage and transportation surveillance tag and preparation method thereof being irreversibly changed Download PDFInfo
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- CN109377860A CN109377860A CN201811483992.2A CN201811483992A CN109377860A CN 109377860 A CN109377860 A CN 109377860A CN 201811483992 A CN201811483992 A CN 201811483992A CN 109377860 A CN109377860 A CN 109377860A
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- surveillance tag
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- cold chain
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
Abstract
The present invention provides a kind of cold chain storage and transportation surveillance tags and preparation method thereof being irreversibly changed, technical solution are as follows: first, photon crystal film is formed on different substrates by the self assembly characteristic of the colloidal solid suspension using monodispersity, then it penetrates into freezing point as needed and indicates the solution of Temperature Matching, its cryocoagulation can be obtained to the surveillance tag being irreversibly changed.Preparation method of the present invention is simple, low in cost, without any toxicity, the photonic crystal structure color surveillance tag being prepared is applicable to different base materials, it is pasted onto many product surfaces and is directly prepared with can be convenient or directly in the packaging of various product, be suitble to large-scale application.
Description
Technical field
The invention belongs to temperature-sensitive nano field of material technology, and in particular to a kind of cold chain storage and transportation monitoring mark being irreversibly changed
Label and preparation method thereof.
Background technique
Cold chain storage and transportation is in objects such as vaccine, drug, cold drink, aquatic products, meat products, quick-frozen food, dairy products and agricultural product
Stream market has a wide range of applications.In recent years, some illegal businessmans fail storage and transportation according to the relevant regulations of the state, can not be phase
The circulation for closing product provides systematically low temperature guarantee, it is caused to become morally degenerate, but part businessman's interests smoke the heart, continue to consumer
Sell it is some be difficult to directly to distinguish, storage and transport process is rotten, rotten or inactivation product, seriously endangered the life of people
It orders healthy and safe.It needs to control at 2 DEG C~8 DEG C for example, vaccine transports general temperature of refrigerating chamber, freezer temperature needs to control
≤ -15 DEG C, temperature is slightly higher easily to be inactivated, and causes that even more serious consequence is immunized in vain；In addition, some special drugs are also right
Temperature is very sensitive, needs whole holding low temperature, otherwise easily fails.It is restricted by social development levels, at present to this kind of production
The supervision of product storage and transport process still remains huge difficulty.
The existing market prior art can be divided into electrical type technology and non-electronics major technology.The general volume of electrical type technology instrument
It is larger, more it is suitable for big part product or FCL product, higher cost, is not suitable for the scattered product of smallclothes.And non-electronics major
After temperature label is generally based on certain substance melted by heat, color change is generated with being stored in predetermined substance therein and reacting
Indicate temperature, price is relatively expensive and has certain toxicity, while cracky, single property, narrow application range.
If consumer can be closed not by the product storage and transport process of refrigeration or freezing needed for visually capable of simply telling
Specification is closed, either with or without rotten and other issues, undoubtedly can greatly enhance consumer to the selection confidence of commodity, while can also be
Whether something unexpected happened for note from the merchant storage and transport process.Therefore, exploiting economy material benefit, product storage and transport process temperature can be monitored go out
The label material of existing anomalous variation has important practical significance, the supervision problem that also will fundamentally solve cold chain storage and transportation.
Summary of the invention
The object of the present invention is to provide a kind of cold chain storage and transportation surveillance tags and preparation method thereof being irreversibly changed, and solve
Existing temperature label preparation method is complicated, and with high costs, cracky, single property, narrow application range, some is even with certain
Toxicity, and volume is relatively bulky, the problems such as being not suitable for large-scale application.
The technical scheme adopted by the invention is that:
A kind of preparation method for the cold chain storage and transportation surveillance tag being irreversibly changed: firstly, the colloid by utilizing monodispersity
The self assembly characteristic of grain suspension forms photon crystal film on different substrates, then, penetrates into freezing point as needed and refers to
Its cryocoagulation, can be obtained the surveillance tag being irreversibly changed by the matched solution of temperature displaying function.
A kind of preparation method for the cold chain storage and transportation surveillance tag being irreversibly changed, comprising the following specific steps
Step 1: colloidal solid is configured to the dispersion liquid that concentration is 0.1wt%-1.5wt%, ultrasonic 0.5-2h is spare；
Preferably, the mixture that solvent used in dispersion liquid is ethyl alcohol, water or both is configured；
Preferably, it is the solid or hollow silica dioxide granule of 150-450 nm range, poly- methyl-prop that colloidal solid, which is partial size,
E pioic acid methyl ester particle, granules of polystyrene, zns particle, ferriferrous oxide particles or titanium dioxide granule.
Step 2: photon crystal film is formed on the substrate by the method for self assembly in the resulting dispersion liquid of step 1；
Preferably, the substrate is simple glass, organic glass, all kinds of packing plastics, fiber, leather or ceramics.
Preferably, the method for dispersion liquid self assembly is vertical standing, spraying or spin coating.
Preferably, photon crystal film is the structure directly formed by colloidal solid, and including direct with colloidal solid
The structure of formation is all kinds of polyalcohol hydrogel inversion structures photon crystal films of template manufacture.
Step 3: firstly, based on the resulting photon crystal film of step 2, freezing point and required instruction temperature are penetrated into
Then the cold chain storage and transportation surveillance tag being irreversibly changed can be prepared in its cryocoagulation by the solution to match.
Preferably, the solution of infiltration is the salting liquid or glacial acetic acid of water, various concentration, and the coverage area of freezing point is -30
DEG C~20 DEG C.
The beneficial effects of the present invention are:
1. preparation method of the present invention is combined using various solution with photonic crystal structure color material, it is prepared for one kind not
The cold chain storage and transportation surveillance tag of reversible color；Label is small in size, on different substrates fitting securely, solution used it is simple and easy to get and
It is nontoxic, therefore preparation method is simple, it is low in cost, without any toxicity.
2. the preparation-obtained photonic crystal structure color surveillance tag high sensitivity of the present invention, when temperature instruction temperature with
When lower, the label is very secured and bright-coloured schemochrome is presented, and when rising to instruction zero point or more, color can occur
Fast transition or disappearance, and indicate that temperature range is wider, accurate within the scope of -30 DEG C ~ 20 DEG C adjustable (instruction temperature can be accurate
To 0.1 DEG C).
It, can be with 3. the preparation-obtained photonic crystal structure color surveillance tag of the present invention is applicable to different base materials
It is easily pasted onto many product surfaces or is directly directly prepared in the packaging of various product, be suitble to large-scale application.
4. the preparation-obtained photonic crystal structure color surveillance tag of the present invention, due to the irreversibility of its discoloration, consumption
Person can Glasslessization quickly judge whether required product storage and transport process was detached from cold chain, it is economical and practical, product can be monitored
There is anomalous variation in storage and transport process temperature.
Detailed description of the invention
Fig. 1 be 310 nm(thickness of the shell of partial size be 50 nm) hollow sphere silica colloid particle transmission electron microscope picture；
Fig. 2 is that the photon that the hollow sphere silica colloid particle with 310 nm(thickness of the shell of partial size for 50 nm) is prepared is brilliant
Body thin film and with water be penetrate into solution combine reflected light of the surveillance tag being prepared in the case where freezing and melting two states
Spectrogram；
Fig. 3 is that the photon that the hollow sphere silica colloid particle with 320 nm(thickness of the shell of partial size for 50 nm) is prepared is brilliant
Body thin film and with water be penetrate into solution combine reflected light of the surveillance tag being prepared in the case where freezing and melting two states
Spectrogram；
Fig. 4 be 340 nm(thickness of the shell of partial size be 65 nm) hollow sphere silica colloid particle transmission electron microscope picture；
Fig. 5 is that the photon that the hollow sphere silica colloid particle with 340 nm(thickness of the shell of partial size for 65 nm) is prepared is brilliant
Body thin film and with water be penetrate into solution combine reflected light of the surveillance tag being prepared in the case where freezing and melting two states
Spectrogram；
Fig. 6 is that the photon that the hollow sphere silica colloid particle with 320 nm(thickness of the shell of partial size for 50 nm) is prepared is brilliant
Body thin film and be to penetrate into solution to combine the surveillance tag being prepared and exist with the sodium-chloride water solution that mass fraction is 12.3 %
Freeze and melt the reflectance spectrum figure under two states；
Fig. 7 is the photon crystal film being prepared with 230 nm(silica colloid particle of partial size and is to penetrate into solution with water
Combine reflectance spectrum figure of the surveillance tag being prepared in the case where freezing and melting two states；
Fig. 8 is anti-protein structure polymer photon crystal film to be prepared by function monomer of methacrylic acid and using water as infiltration
Enter solution and combines reflectance spectrum figure of the surveillance tag being prepared in the case where freezing and melting two states.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
The present invention forms light by the self assembly characteristic of the colloidal solid suspension using monodispersity on different substrates
Sub- crystal film then penetrates into freezing point as needed and indicates the solution of Temperature Matching, in low temperature by its cryocoagulation
The surveillance tag being irreversibly changed.
The use principle of cold chain storage and transportation surveillance tag prepared by the present invention are as follows: cold chain transportation temperature be instruction temperature
Under, cold chain storage and transportation surveillance tag is able to maintain bright-coloured schemochrome；When cold chain transportation temperature is higher than instruction zero point, cold chain
Irreversible color change or avalanche damage can quickly occur for storage and transportation surveillance tag；It can not be extensive placing back in low temperature environment
It is multiple, thus consumer can Glasslessization quickly judge whether required product storage and transport process was detached from cold chain.
Preparation method of the present invention, the specific steps are as follows:
Step 1: the colloidal solid that grain diameter is 150-450 nm range is configured to point that mass fraction is 0.1%-1.5%
Dispersion liquid, ultrasonic 0.5-2 h are spare；
Step 2: dispersion liquid obtained by step 1 is contacted by vertically standing, spraying or spin coating etc. with substrate, dry to solvent volatilization
Afterwards, photon crystal film is formed on the substrate；
Step 3: based on the photon crystal film that step 2 obtains, penetrate into what freezing point matched with required instruction temperature
In low temperature surveillance tag can be prepared in its cryocoagulation by solution.
Preferably, in step 1, the mixture that solvent used in dispersion liquid is ethyl alcohol, water or both is configured；
Preferably, in step 1, the colloidal solid is solid or hollow silica dioxide granule, polymethyl methacrylate
Grain, granules of polystyrene, zns particle, ferriferrous oxide particles or titanium dioxide granule.
Preferably, in step 2, the substrate be simple glass, organic glass, all kinds of packing plastics, fiber, leather or
Person's ceramics.
Preferably, the photon crystal film is in addition to the structure that is directly formed by colloidal solid, while also including being with it
All kinds of polyalcohol hydrogel inversion structures photon crystal films of template manufacture.
Preferably, in step 3, the solution of infiltration is water, the salting liquid of various concentration or glacial acetic acid etc., their freezing points
Coverage area is -30 DEG C to 20 DEG C.
Embodiment 1
Using glass as substrate, colloidal solid is hollow sphere silica, and particle size is that 310 nm(thickness of the shells are 50 nm), lead to
It crosses vertical settled process and prepares photon crystal film, and be to penetrate into solution with water:
Step 1: it is then cleaned with deionized water firstly, the beaker of 5 mL and substrate are heated 3 h of immersion with Piranha solution
5 times, then rinsed 4 times with ethyl alcohol, substrate is put into beaker with tweezers, is put into drying box drying, it is spare.
Step 2: grain diameter is soluble in water for the hollow sphere silica dioxide granule of 310 nm, and being configured to concentration is
The dispersion liquid of 1.5wt%, ultrasonic 1h are spare；
Step 3: firstly, the 3 resulting dispersion liquids of mL step 2 is taken to be added in clean beaker, then, substrate is disposed vertically
In beaker bottom, beaker is then put in thermostatic drying chamber and is stood, after solvent volatilization is dry, photon crystal film is i.e. in substrate
Upper formation；
Step 4: water is penetrated into the resulting photon crystal film of step 3, at low temperature by its cryocoagulation, that is, is prepared
Photonic crystal structure color surveillance tag.
In order to test the performance of the preparation-obtained photonic crystal structure color surveillance tag of the present invention, we it is carried out with
Lower processing: the photonic crystal structure color surveillance tag being prepared being placed at room temperature, its color change process is observed, and is recorded
Its transformation period, and the wavelength location after its freezing and thawing is characterized by spectrometer；Label after thawing is continued to put back to low
Temperature freezing, observes its color change, is concluded that when be 310 nm(thickness of the shells with particle size being 50 nm) it is hollow
Ball silica is that colloidal solid (shown in its transmission electron microscope picture Fig. 1) prepares photon crystal film, is preparation when penetrating into liquid with water
Obtained surveillance tag instruction critical-temperature is 0 DEG C (its freezing point), is put under (14 DEG C) at room temperature, becomes light green from yellow
Color, required time are 3 min, and corresponding spectrogram is as shown in Figure 2.Because solution flows out after melting, then freezes and can not make its recovery
Color originally, and its integrality can also generate a degree of damage.
Embodiment 2
Using glass as substrate, colloidal solid is hollow sphere silica, and particle size is that 320 nm(thickness of the shells are 50 nm), lead to
It crosses vertical settled process and prepares photon crystal film, and be to penetrate into solution with water:
Step 1: firstly, the beaker of 5 mL and substrate, which are heated immersion 3h with Piranha solution, then cleans 5 with deionized water
It is secondary, then rinsed 4 times with ethyl alcohol, substrate is put into beaker with tweezers, is put into drying box drying, it is spare.
Step 2: grain diameter is soluble in water for the hollow sphere silica dioxide granule of 320 nm ranges, it is configured to quality
The dispersion liquid that score is 1.5%, ultrasonic 1h are spare；
Substrate: firstly, the 3 resulting dispersion liquids of mL step 2 is taken to be added in clean beaker, being then disposed vertically by step 3,
Then beaker thermostatic drying chamber is put in stand, after the solvent volatilization in solution is dry, the photon crystal film i.e. shape in substrate
At；
Step 4: water is penetrated into the resulting photon crystal film of step 3, at low temperature by its cryocoagulation, that is, is prepared
Surveillance tag.
In order to test the performance of the preparation-obtained photonic crystal structure color surveillance tag of the present invention, we it is carried out with
Lower processing: the photonic crystal structure color surveillance tag being prepared being placed at room temperature, its color change process is observed, and is recorded
Its transformation period, and the wavelength location after its freezing and thawing is characterized by spectrometer；Label after thawing is continued to put back to low
Temperature freezing, observes its color change, is concluded that when be 320 nm(thickness of the shells with particle size being 50 nm) it is hollow
Ball silica is that colloidal solid prepares photon crystal film, is when penetrating into liquid with water, the surveillance tag instruction being prepared is faced
Boundary's temperature is 0 DEG C (its freezing point), is put under (14 DEG C) at room temperature, becomes yellow green, required time 3 from orange-yellow
Min, corresponding spectrogram are as shown in Figure 3.Because solution flows out after melting, then the color that it can not be made to restore original is freezed, and its
Integrality can also generate a degree of damage.
Embodiment 3
Using glass as substrate, colloidal solid is hollow sphere silica, and particle size is that 340 nm(thickness of the shells are 65 nm), lead to
It crosses vertical settled process and prepares photon crystal film, and be to penetrate into solution with water:
Step 1: firstly, the beaker of 5 mL and substrate, which are heated immersion 3h with Piranha solution, then cleans 5 with deionized water
It is secondary, then rinsed 4 times with ethyl alcohol, finally, substrate is put into beaker with tweezers, it is put into drying box drying, it is spare.
Step 2: the hollow sphere silica dioxide granule that grain diameter is 340 nm ranges is dissolved in ethyl alcohol, matter is configured to
The dispersion liquid that score is 1.5 % is measured, ultrasound 1 h is spare；
Step 3: the resulting dispersion liquid of 3 mL step 2 is taken to be added in clean beaker, substrate is disposed vertically, and is then put in beaker
Thermostatic drying chamber is stood, and after solvent volatilization is dry under quiet environment, photon crystal film is formed on the substrate；
Step 4: water is penetrated into the resulting photon crystal film of step 3, at low temperature by its cryocoagulation, that is, is prepared
Photonic crystal structure color surveillance tag.
In order to test the performance of the preparation-obtained photonic crystal structure color surveillance tag of the present invention, we it is carried out with
Lower processing: the photonic crystal structure color surveillance tag being prepared being placed at room temperature, its color change process is observed, and is recorded
Its transformation period, and the wavelength location after its freezing and thawing is characterized by spectrometer；Label after thawing is continued to put back to low
Temperature freezing, observes its color change, is concluded that when be 340 nm(thickness of the shells with particle size being 65 nm) it is hollow
Ball silica is that colloidal solid (its transmission electron microscope picture is as shown in Figure 4) prepares photon crystal film, is system when penetrating into liquid with water
Standby obtained surveillance tag instruction critical-temperature is 0 DEG C (its freezing point), is put under (14 DEG C) at room temperature, becomes shallow from red
Yellow, required time are 3 min, and corresponding spectrogram is as shown in Figure 5.Because solution flows out after melting, then freezing can not make its extensive
The color of coming is restored, and its integrality can also generate a degree of damage.
Embodiment 4
Using glass as substrate, colloidal solid is hollow sphere silica, and particle size is that 310 nm(thickness of the shells are 50 nm), lead to
It crosses vertical settled process and prepares photon crystal film, and be to penetrate into solution with the sodium-chloride water solution of 12.3 %:
Step 1: it is then cleaned with deionized water firstly, the beaker of 5 mL and substrate are heated 3 h of immersion with Piranha solution
5 times, then rinsed 4 times with ethyl alcohol, then, substrate is put into beaker with tweezers, is put into drying box drying, it is spare.
Step 2: grain diameter is soluble in water for the hollow sphere silica dioxide granule of 310 nm ranges, it is configured to quality
Score is the dispersion liquid of 1.5 %, and ultrasound 1 h is spare；
Step 3: the resulting dispersion liquid of 3 mL step 2 is taken to be added in clean beaker, substrate is disposed vertically, and is then put in beaker
Thermostatic drying chamber is stood, and after solvent volatilization is dry under quiet environment, photon crystal film is formed on the substrate；
Step 4: the sodium-chloride water solution that mass fraction is 12.3 % is penetrated into the resulting photon crystal film of step 3,
By its cryocoagulation under low temperature, that is, photonic crystal structure color surveillance tag is prepared.
In order to test the performance of the preparation-obtained photonic crystal structure color surveillance tag of the present invention, we it is carried out with
Lower processing: the photonic crystal structure color surveillance tag being prepared being placed at room temperature, its color change process is observed, and is recorded
Its transformation period, and the wavelength location after its freezing and thawing is characterized by spectrometer；Label after thawing is continued to put back to low
Temperature freezing, observes its color change, is concluded that when be 310 nm(thickness of the shells with particle size being 50 nm) it is hollow
Ball silica is that colloidal solid prepares photon crystal film, is to penetrate into liquid with the sodium-chloride water solution that mass fraction is 12.3 %
When, the surveillance tag instruction critical-temperature being prepared is -8.6 DEG C (its freezing point), is put under (14 DEG C) at room temperature, by Huang
Discoloration is yellow green, and required time is 50 s, and corresponding spectrogram is as shown in Figure 6.Because solution flows out after melting, then freezing can not
It is set to restore original color, and its integrality can also generate a degree of damage.
Embodiment 5
Using glass as substrate, colloidal solid is solid silica, and particle size is 230 nm, prepares light by vertical settled process
Sub- crystal film, and be to penetrate into solution with water:
Step 1: it is then cleaned with deionized water firstly, the beaker of 5 mL and substrate are heated 3 h of immersion with Piranha solution
5 times, then rinsed 4 times with ethyl alcohol, substrate is put into beaker with tweezers, is put into drying box drying, it is spare.
Step 2: grain diameter is soluble in water for the silica dioxide granule of 230 nm ranges, and being configured to mass fraction is 1
The dispersion liquid of %, ultrasound 1 h are spare；
Step 3: firstly, dispersion liquid obtained by 3 mL step 2 is taken to be added in clean beaker, substrate being disposed vertically, and then will be burnt
Cup is put in thermostatic drying chamber standing, and after solvent volatilization is dry under quiet environment, photon crystal film is formed on the substrate；
Step 4: water is penetrated into the resulting photon crystal film of step 3, at low temperature by its cryocoagulation, that is, is prepared
Photonic crystal structure color surveillance tag.
In order to test the performance of the preparation-obtained photonic crystal structure color surveillance tag of the present invention, we it is carried out with
Lower processing: the photonic crystal structure color surveillance tag being prepared being placed at room temperature, its color change process is observed, and is recorded
Its transformation period, and the wavelength location after its freezing and thawing is characterized by spectrometer；Label after thawing is continued to put back to low
Temperature freezing, observes its color change, is concluded that when the titanium dioxide for being 230 nm with particle size
Silicon is that colloidal solid prepares photon crystal film, is when penetrating into liquid with water, the surveillance tag instruction critical-temperature being prepared is 0
DEG C (its freezing point), is put under (14 DEG C) at room temperature, becomes purple from cyan, required time is 3 min, and corresponding spectrogram is such as
Shown in Fig. 7.Because solution flows out after melting, then the color that it can not be made to restore original is freezed, and its integrality can also generate one
Determine the damage of degree.
Embodiment 6
Using glass as substrate, colloidal solid is silica, and particle size is 220 nm, prepares photon crystalline substance by vertical settled process
Body thin film, and anti-protein structure polymer photon crystal film is prepared by function monomer of methacrylic acid, water is to penetrate into
Solution:
Step 1: it is cleaned 5 times, then used with deionized water after the beaker of 5 mL and substrate are heated 3 h of immersion with Piranha solution
Ethyl alcohol rinses 4 times, and substrate is put into beaker with tweezers, is put into drying box drying, spare.
Step 2: it is 1.5 that the hollow sphere silica dioxide granule that grain diameter is 220 nm ranges, which is configured to mass fraction,
The dispersion liquid of %, ultrasound 1 h are spare；
Step 3: 3 mL of dispersion liquid obtained by step 2 is added in the resulting clean beaker of step 1, substrate is disposed vertically, then
Beaker is put in thermostatic drying chamber to stand, after solvent volatilization is dry under quiet environment, photon crystal film is formed on the substrate；
Step 4: methacrylic acid and crosslinking agent ethylene glycol dimethacrylate are mixed in 0.5 by the molar ratio of 5:1
In the ethyl alcohol of mL, initiator polymerization is added, after the completion of polymerization 1% hf etching, last deionized water washs to neutrality,
The polymer photon crystal film of counter opal structure can be obtained.
Step 5: water is penetrated into the resulting photon crystal film of step 4, at low temperature by its cryocoagulation, that is, is prepared
Obtain photonic crystal structure color surveillance tag.
In order to test the performance of the preparation-obtained photonic crystal structure color surveillance tag of the present invention, we it is carried out with
Lower processing: the photonic crystal structure color surveillance tag being prepared being placed at room temperature, its color change process is observed, and is recorded
Its transformation period, and the wavelength location after its freezing and thawing is characterized by spectrometer；Label after thawing is continued to put back to low
Temperature freezing, observes its color change, is concluded that working as with particle size is that 220 nm(thickness of the shells are
10 nm) hollow sphere silica be that colloidal solid prepares photon crystal film, be the prison that is prepared when penetrating into liquid with water
Controlling label instruction critical-temperature is 0 DEG C (its freezing point), is put under (14 DEG C) at room temperature, becomes light green color from green, required
Time is 3 min, and corresponding spectrogram is as shown in Figure 8.Because solution flows out after melting, then freeze the face that it can not be made to restore original
Color, this kind of label integrity will not generate any damage.
The contents of the present invention are not limited to cited by embodiment, and those of ordinary skill in the art are by reading description of the invention
And to any equivalent transformation that technical solution of the present invention is taken, it is all that claim of the invention is covered.
Claims (8)
1. a kind of preparation method for the cold chain storage and transportation surveillance tag being irreversibly changed, it is characterised in that:
Firstly, forming photonic crystal on different substrates by the self assembly characteristic of the colloidal solid suspension using monodispersity
Then film penetrates into freezing point as needed and indicates the solution of Temperature Matching, its cryocoagulation can be obtained can not inversion
The surveillance tag of color.
2. a kind of preparation method of cold chain storage and transportation surveillance tag being irreversibly changed according to claim 1, feature exist
In, comprising the following specific steps
Step 1: colloidal solid is configured to the dispersion liquid that concentration is 0.1wt%-1.5wt%, ultrasonic 0.5-2h is spare；
Step 2: photon crystal film is formed on the substrate by the method for self assembly in the resulting dispersion liquid of step 1；
Step 3: firstly, based on the resulting photon crystal film of step 2, freezing point and required instruction temperature phase are penetrated into
Then the cold chain storage and transportation surveillance tag being irreversibly changed can be prepared in its cryocoagulation by the solution matched.
3. a kind of preparation method of cold chain storage and transportation surveillance tag being irreversibly changed according to claim 2, feature exist
In,
In step 1, the mixture that solvent used in dispersion liquid is ethyl alcohol, water or both is configured；
The colloidal solid is solid or hollow silica dioxide granule, the polymethylacrylic acid that partial size is 150-450 nm range
Methacrylate particles, granules of polystyrene, zns particle, ferriferrous oxide particles or titanium dioxide granule.
4. a kind of preparation method of cold chain storage and transportation surveillance tag being irreversibly changed according to claim 3, feature exist
In,
In step 2, the substrate is simple glass, organic glass, all kinds of packing plastics, fiber, leather or ceramics.
5. a kind of preparation method of cold chain storage and transportation surveillance tag being irreversibly changed according to claim 4, feature exist
In,
In step 2, the method for dispersion liquid self assembly is vertical standing, spraying or spin coating.
6. a kind of preparation method of cold chain storage and transportation surveillance tag being irreversibly changed according to claim 5, feature exist
In,
The photon crystal film is the structure directly formed by colloidal solid, and includes the knot directly formed with colloidal solid
Structure is all kinds of polyalcohol hydrogel inversion structures photon crystal films of template manufacture.
7. a kind of preparation method of cold chain storage and transportation surveillance tag being irreversibly changed according to claim 6, feature exist
In,
In step 3, the solution of infiltration is the salting liquid or glacial acetic acid of water, various concentration, and the coverage area of freezing point is -30 DEG C
~20 DEG C.
8. a kind of cold chain storage and transportation prison being irreversibly changed that the preparation method as described in claim 1-7 any one is prepared
Control label.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110041543A (en) * | 2019-04-28 | 2019-07-23 | 陕西科技大学 | A kind of corrosion resistant schemochrome hydrogel thin film and preparation method thereof |
| CN110770557A (en) * | 2019-08-19 | 2020-02-07 | 苏州科技大学 | Visual heat accumulation indicator based on photonic crystal structure and preparation and application thereof |
| CN111470883A (en) * | 2020-04-07 | 2020-07-31 | 陕西科技大学 | SiO (silicon dioxide)2Photonic crystal structure color coating and preparation process thereof |
| CN111816054A (en) * | 2020-07-21 | 2020-10-23 | 苏州善恩纳米功能材料科技有限公司 | Solid-state temperature-sensitive color-changing label |
| CN111816053A (en) * | 2020-07-21 | 2020-10-23 | 苏州善恩纳米功能材料科技有限公司 | Solid-state temperature-sensitive color-changing label |
| CN114664173A (en) * | 2022-03-14 | 2022-06-24 | 复旦大学 | Cold chain transportation visual photonic crystal time-temperature combined monitoring label, preparation method and application |
| CN114924335A (en) * | 2022-05-11 | 2022-08-19 | 深圳先进技术研究院 | Temperature control self-destruction type photonic crystal label |
| WO2023216151A1 (en) * | 2022-05-11 | 2023-11-16 | 深圳先进技术研究院 | Photonic crystal label that undergoes temperature-controlled self-destruction |
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