CN114842736A - Quantum dot material-based encoding label and packaging method thereof - Google Patents
Quantum dot material-based encoding label and packaging method thereof Download PDFInfo
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- CN114842736A CN114842736A CN202210513407.9A CN202210513407A CN114842736A CN 114842736 A CN114842736 A CN 114842736A CN 202210513407 A CN202210513407 A CN 202210513407A CN 114842736 A CN114842736 A CN 114842736A
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- 239000002096 quantum dot Substances 0.000 title claims abstract description 96
- 239000000463 material Substances 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 11
- 239000010410 layer Substances 0.000 claims abstract description 44
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 239000011241 protective layer Substances 0.000 claims abstract description 14
- 238000005538 encapsulation Methods 0.000 claims abstract description 12
- 239000002861 polymer material Substances 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 238000007605 air drying Methods 0.000 claims abstract description 6
- 238000002834 transmittance Methods 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N ethyl acetate Substances CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 50
- 239000007787 solid Substances 0.000 claims description 9
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 239000012459 cleaning agent Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 239000003517 fume Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002427 irreversible effect Effects 0.000 abstract description 2
- 238000005424 photoluminescence Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001443 photoexcitation Effects 0.000 description 1
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000004054 semiconductor nanocrystal Substances 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
Classifications
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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
- G09F3/0294—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time where the change is not permanent, e.g. labels only readable under a special light, temperature indicating labels and the like
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- Physics & Mathematics (AREA)
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Abstract
The invention discloses a quantum dot material-based coding label and a packaging method thereof, wherein the method comprises the steps of firstly selecting a film as a substrate, and cleaning the surface of the film to obtain a substrate film layer; then, the prepared quantum dot solution is laid on the substrate film layer, and air-drying treatment is carried out to obtain perovskite quantum dot solute to form a quantum dot material layer; coating a high polymer material solution with light transmittance on the surface of the quantum dot, and carrying out curing treatment to form a protective layer; and finally, manufacturing an adhesion layer for adhering to the surface of the object on the other surface of the quantum dot material layer. The method isolates the perovskite quantum dot material from air by using an encapsulation technology, avoids the problem that the quantum effect of the perovskite quantum dot material is quickly subjected to irreversible attenuation when the perovskite quantum dot material is exposed in the air, ensures that the perovskite quantum dot material can be effective for a long time, is independently encapsulated into an independent label, is convenient to install and replace, and further reduces the damage to cultural relics or target objects.
Description
Technical Field
The invention relates to the technical field of quantum dot labels, in particular to a quantum dot material-based encoding label and a packaging method thereof.
Background
The label is generally disposed on the surface of the target object, and is adhered, printed, and transferred on the target object, and the target object is detected by identifying the label, such as a random wrinkling pattern with tunable fluorescence, a randomly distributed nanoparticle pattern, and the like.
Photoluminescence (PL) is not in contact with and does not damage the material. Light impinges directly on the material, is absorbed by the material and transfers excess energy to the material, a process called photoexcitation. This excess energy can be dissipated in the form of luminescence. The process of luminescence due to light excitation is called photoluminescence. Quantum Dots (QDs) are zero-dimensional semiconductor crystal nanoparticles having a nano effect, and are semiconductor nanocrystals composed of several hundreds to several thousands of atoms, and have a particle size of about 10 nm. The quantum dots have internal quantum efficiency of up to 100 percent and high energy efficiency, and can also obtain the absorption and emission of photons with different wavelengths by controlling the particle size of the quantum dots.
The perovskite quantum dot material has strong photoluminescence characteristics in visible light and infrared light ranges, but if the perovskite quantum dot material is directly exposed in the air, the quantum effect of the perovskite quantum dot material can be quickly subjected to irreversible attenuation, and the perovskite quantum dot material can be effectively isolated from the air. Therefore, there is a need for a label that can be made of quantum dot materials and is effective for a long period of time.
Disclosure of Invention
In view of the above, the present invention provides a quantum dot material-based encoding tag and an encapsulation method thereof, where the method encapsulates perovskite quantum dot materials, uses materials with good sealing properties, and ensures that the quantum dot materials in the tag are effective.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a quantum dot material-based encoding label packaging method, which comprises the following steps:
s1: selecting a film as a substrate, and cleaning the surface of the film to obtain a substrate film layer;
s2: the prepared quantum dot solution is laid on the substrate film layer, and air-drying treatment is carried out to obtain perovskite quantum dot solute to form a quantum dot material layer;
s3: coating a high polymer material solution with light transmittance on the surface of the quantum dot, and carrying out curing treatment to form a protective layer;
s4: and manufacturing an adhesion layer for adhering to the surface of the object on the other surface of the quantum dot material layer.
Further, the quantum dot solution is arranged in the middle of the base film layer, and the periphery of the base film layer is connected with the protective layer to form a chamber for sealing the quantum dot solution.
Further, the membrane surface is cleaned by a cleaning agent to remove dirt on the membrane surface, and the membrane surface is dried by using stable gas, wherein the cleaning agent comprises any one or any combination of deionized water, absolute ethyl alcohol, analytically pure isopropanol and analytically pure acetone.
Further, the quantum dot solution is a water-soluble perovskite quantum dot solution, the water-soluble perovskite quantum dot solution is flatly laid on a substrate, air drying is carried out in a fume hood at room temperature, and the perovskite quantum dot solute is obtained after the solution is volatilized.
Further, the protective layer uniformly coats a light-transmitting polymer material solution on the surface of the quantum dot, and the light-transmitting polymer material solution is a B72-ethyl acetate solution and is cured at room temperature.
Further, the material of the adhesion layer adopts B72-ethyl acetate solution.
Further, the B72-ethyl acetate solution used for the protective layer is a low mass fraction B72-ethyl acetate solution.
Further, the B72-ethyl acetate solution used for the adhesion layer is a high-quality-fraction B72-ethyl acetate solution, and is prepared according to the following steps:
1) obtaining B72 solid and pure ethyl acetate solvent;
2) placing the B72 solid into a filtering device;
3) after ethyl acetate is poured in, the mixture is stirred by a magnetic stirrer in a rotating way, and a film for preventing the ethyl acetate from volatilizing is arranged;
4) after the B72 solid is dissolved, a B72-ethyl acetate solution is prepared.
The label provided by the invention is prepared by the quantum dot material-based encoding label packaging method.
The cultural relic monitoring label is also provided with a surface of the cultural relic to be monitored.
The invention has the beneficial effects that:
the invention provides a quantum dot material-based coding label and a packaging method thereof.A film is selected as a substrate, and the surface of the film is cleaned to obtain a substrate film layer; then, the prepared quantum dot solution is laid on the substrate film layer, and air-drying treatment is carried out to obtain perovskite quantum dot solute to form a quantum dot material layer; coating a high polymer material solution with light transmittance on the surface of the quantum dot, and carrying out curing treatment to form a protective layer; and finally, manufacturing an adhesion layer for adhering to the surface of the object on the other surface of the quantum dot material layer. The method isolates the perovskite quantum dot material from air by using a packaging technology, avoids the problem that the quantum effect of the perovskite quantum dot material is irreversibly attenuated quickly when the perovskite quantum dot material is exposed in the air, ensures that the perovskite quantum dot material can be effective for a long time, is packaged into an independent label independently, is convenient to install and replace, and further reduces the damage to cultural relics or target objects.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
In order to make the object, technical scheme and beneficial effect of the invention more clear, the invention provides the following drawings for explanation:
fig. 1 is a flow chart of a quantum dot material encoding label packaging method.
Fig. 2 is a structural schematic diagram of a quantum dot material encoding tag.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
Example 1
As shown in fig. 1, in the quantum dot material-based encoding label and the encapsulation method thereof provided in this embodiment, the quantum dot material in this embodiment is a perovskite quantum dot material, and the encapsulation process mainly includes the following steps:
s1: transparent, hard or soft films are selected as the substrate, such as PET film, PDMS film, etc. And respectively cleaning dirt on the surface of the film layer by using deionized water, absolute ethyl alcohol, analytically pure isopropanol, analytically pure acetone and the like, and then blowing the film layer by using high-pressure stable gas for later use. The high-pressure stable gas provided by the embodiment is high-pressure nitrogen, and other inert gases or stable gases which have no influence on people or materials can be adopted.
S2: and spreading the prepared water-soluble perovskite quantum dot solution on a substrate, airing in a fume hood for 30min at room temperature, and volatilizing the solution to only leave the perovskite quantum dot solute.
S3: uniformly coating the high-molecular material solution with high light transmittance on the surface of the quantum dot, such as 9-11 wt% of B72-ethyl acetate solution, curing at room temperature for 42-50h, and curing at 45-55 ℃ for 45-50 h.
In this example, a 10 wt% solution of B72-ethyl acetate was used to cure at room temperature for 48 hours and at 50 ℃ for 48 hours.
Since the lower the mass fraction, the longer the time required for the drying process, the low mass fraction provided in this example ranges from 5 wt% to 20 wt%. Or the corresponding B72-ethyl acetate solution with the mass fraction can be selected according to actual conditions.
S4: the prepared perovskite quantum dot is adhered to the surface of an object by using a high-concentration B72-ethyl acetate solution (accounting for 50 wt% or more), and after being dried in air for 4 hours, a label can be effectively adhered to the surface of the cultural relic. Finally, the optical label with weather resistance, high permeability, high viscosity and high reliability is formed.
Wherein, B72-ethyl acetate solution with different mass fractions is used for film preparation and adhesion.
1) The B72-ethyl acetate solution with low mass fraction is used in film forming so as to ensure that the film is better hydrophilic when the film is flatly spread on the surface of the perovskite quantum dot, and the problem that the film is difficult to form after the liquid is spherical on the surface of the perovskite and is dried is avoided. After film formation, B72 has good hydrophobicity, so that the liquid can be prevented from gathering on the surface of the film to influence the optical effect of the label. And B72 has good corrosion resistance, thereby effectively protecting the label itself from other substances.
2) The B72-ethyl acetate solution with high mass fraction is used for accelerating the volatilization of the solvent during the adhesion, and the adhesion can be expressed after the rapid drying.
The high mass fraction in this example is limited to 50 wt% to 70 wt%, and can be selected according to the actual situation because high mass fraction dries quickly but causes poor fluidity.
The preparation method of the B72-ethyl acetate solution comprises the following steps: the method given here is only an example of using 500ml of solvent to make a 10 wt% solution, and the actual amount made is determined as required.
1) 50g of B72 solid was weighed using an analytical balance (accurate to 0.0001g), and 500ml of an analytically pure ethyl acetate solvent (0.9 g/ml) was measured using a graduated cylinder;
2) wrapping the solid B72 in gauze or filter screen, penetrating the gauze with bamboo stick, and placing on beaker to hang the gauze in the beaker;
3) after 500ml of ethyl acetate is poured in, a magnetic rotor is placed in a beaker, the beaker is placed on a magnetic stirrer to rotate at the speed of 120r/min, and a layer of preservative film is laid on the beaker to prevent the ethyl acetate from volatilizing.
4) After 2h dissolution, the B72 solid in the beaker is completely dissolved to prepare a 10 wt% B72-ethyl acetate solution for later use.
Example 2
The quantum dot material coding label provided by the embodiment sequentially comprises a substrate film layer, a quantum dot material layer, a protective layer and an adhesion layer; the substrate film layer is used for providing a substrate of the quantum dot material; the quantum dot material layer is an air-dried perovskite quantum dot material layer; the protective layer is a cured high polymer material layer coated on the surface of the quantum dot material layer and has light transmittance; the adhesion layer is a coating which is arranged on the other surface of the quantum dot material layer and is used for adhering to the surface of an object; the quantum dot solution is arranged in the middle of the base film layer, and the periphery of the base film layer is connected with the protective layer to form a chamber for sealing the quantum dot solution.
The quantum dot material coding label provided by the embodiment is arranged on a cultural relic to be monitored to form a cultural relic monitoring label, the perovskite quantum dot material is utilized to have strong photoluminescence characteristics in visible light and infrared light ranges, and the label is made of the quantum dot material and is effective for a long time due to the fact that air is isolated by encapsulation.
The quantum dot coding label is arranged on the monitored cultural relic, so that compared with the method of directly coating the monitoring label on the monitored cultural relic, the time and labor intensity are saved, and the arrangement efficiency of a monitoring system is improved. And when the monitoring system is maintained, the maintenance is more convenient.
The adhesive layer, the substrate, the quantum dot layer and the protective layer are made of transparent materials, so that the appearance of the surface of the cultural relic cannot be affected when the label is arranged on the surface of the cultural relic, the requirement of cultural relic protection is met, and damage to the cultural relic caused by the label is avoided.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. The encoding label packaging method based on the quantum dot material is characterized by comprising the following steps: the method comprises the following steps:
s1: selecting a film as a substrate, and cleaning the surface of the film to obtain a substrate film layer;
s2: the prepared quantum dot solution is laid on the substrate film layer, and air-drying treatment is carried out to obtain perovskite quantum dot solute to form a quantum dot material layer;
s3: coating a high polymer material solution with light transmittance on the surface of the quantum dot, and carrying out curing treatment to form a protective layer;
s4: and manufacturing an adhesion layer for adhering to the surface of the object on the other surface of the quantum dot material layer.
2. The quantum dot material-based coded label encapsulation method of claim 1, wherein: the quantum dot solution is arranged in the middle of the base film layer, and the periphery of the base film layer is connected with the protective layer to form a chamber for sealing the quantum dot solution.
3. The quantum dot material-based coded label encapsulation method of claim 1, wherein: the membrane surface is cleaned by removing dirt on the membrane surface through a cleaning agent, and the membrane surface is dried by using stable gas, wherein the cleaning agent comprises any one or any combination of deionized water, absolute ethyl alcohol, analytically pure isopropanol and analytically pure acetone.
4. The quantum dot material-based coded label encapsulation method of claim 1, wherein: the quantum dot solution is a water-soluble perovskite quantum dot solution, the water-soluble perovskite quantum dot solution is flatly laid on a substrate, air drying is carried out in a fume hood at room temperature, and the perovskite quantum dot solute is obtained after the solution is volatilized.
5. The quantum dot material-based coded label encapsulation method of claim 1, wherein: the protective layer is formed by uniformly coating a light-transmitting high polymer material solution on the surface of the quantum dot and curing at room temperature, wherein the light-transmitting high polymer material solution is B72-ethyl acetate solution.
6. The quantum dot material-based coded label encapsulation method of claim 1, wherein: the material of the adhesion layer adopts B72-ethyl acetate solution.
7. The quantum dot material-based coded label encapsulation method of claim 1, wherein: the B72-ethyl acetate solution used for the protective layer is a low mass fraction B72-ethyl acetate solution.
8. The quantum dot material-based coded label encapsulation method of claim 1, wherein: the B72-ethyl acetate solution used for the adhesion layer is a high-quality-fraction B72-ethyl acetate solution and is prepared according to the following steps:
1) obtaining B72 solid and pure ethyl acetate solvent;
2) placing the B72 solid into a filtering device;
3) after ethyl acetate is poured in, the mixture is stirred by a magnetic stirrer in a rotating way, and a film for preventing the ethyl acetate from volatilizing is arranged;
4) after the B72 solid is dissolved, a B72-ethyl acetate solution is prepared.
9. A label, characterized in that: the label obtained by the method for packaging the quantum dot material-based coded label according to any one of claims 1 to 8.
10. Historical relic monitoring label, its characterized in that: the label manufactured by the quantum dot material coding-based label packaging method according to any one of claims 1-8, wherein the label is used for being arranged on the surface of a cultural relic to be monitored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210513407.9A CN114842736A (en) | 2022-05-12 | 2022-05-12 | Quantum dot material-based encoding label and packaging method thereof |
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| CN202210513407.9A CN114842736A (en) | 2022-05-12 | 2022-05-12 | Quantum dot material-based encoding label and packaging method thereof |
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