CN115651291A - In-situ growth multicolor fluorescent carbon dot resin material and preparation method and application thereof - Google Patents
In-situ growth multicolor fluorescent carbon dot resin material and preparation method and application thereof Download PDFInfo
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Abstract
The invention provides an in-situ growth multicolor fluorescent carbon dot resin material, which is obtained by the in-situ growth of matrix resin and a carbon dot precursor in an extrusion mode. The carbon dot material provided by the invention has the advantages of rich and simple raw materials, simple and convenient synthesis process, no toxicity, environmental protection and high stability. The preparation process is simple, only the carbon point precursor and the resin are needed to be put into the preparation process, the product is obtained by controlling the extrusion temperature and time, the purification is not needed, and the preparation method is suitable for large-scale production.
Description
Technical Field
The invention belongs to the technical field of luminescent materials, and particularly relates to an in-situ grown multicolor fluorescent carbon dot resin material and a preparation method and application thereof.
Background
Solar radiation is an indispensable energy source for photosynthesis of plants, and sunlight mainly consists of ultraviolet light, visible light and infrared light. Wherein, the blue light with the wavelength range of 400-500 nm can be strongly absorbed by the carotenoid and chlorophyll so as to promote the growth of plant stems and leaves and improve the yield of crops; yellow light with the wavelength of 540-600 nm is not much suitable for photosynthesis of plants, most of the yellow light is reflected by plant leaves, but the yellow light can promote the color of the plants, and is beneficial to improving the value of ornamental plants in a nursery. And the ultraviolet light is lower than the ultraviolet light, which is not beneficial to photosynthesis and inhibits the growth and the maturity of plants. The light conversion material is a material capable of converting ultraviolet light harmful to photosynthesis of plants in sunlight into light required for photosynthesis.
Carbon Dots (CDs) are generally referred to as being less than 10nm in size, predominantly sp 2 Carbon core sp 3 Carbon, and a fluorescent nanomaterial. And is highly valued by excellent properties. In general, CDs have several advantages including photobleaching resistance, fluorescence tunability, ease of preparation, and good biocompatibility, which make them increasingly useful in the fields of ion detection, bio-imaging, and optical devices.
At present, most of carbon dot composite materials reported in the patent are prepared by firstly reacting a precursor, then purifying to obtain carbon dots, and then combining the carbon dots with a polymer, and have no condition for large-scale production. "a red fluorescence carbon dot light conversion film and its preparation method and application" as described in application No. CN111662524A, wherein researchers add the red fluorescence carbon dot synthesized by it into polyvinyl alcohol solution after purifying it to form film, the process is complicated; the application of the carbon dots as agricultural light conversion materials in agricultural production is disclosed in application No. CN106590640A, wherein researchers synthesize a carbon dot solution by a solvothermal method, a hydrothermal method and a tubular furnace calcination method and then purify the carbon dot solution to obtain the carbon dots, and the carbon dots are not combined with a substrate; the application No. CN107214983A discloses a light conversion plastic film, a preparation method and applications thereof, wherein researchers synthesize and purify by a hydrothermal method to obtain carbon dots, coat a thin layer of carbon quantum dot solution on the surface of a common plastic film substrate by a simple spraying method, and naturally dry the film to obtain the light conversion plastic film modified by the carbon quantum dots, and the obtained film is simply attached to the surface of plastic and does not meet the conditions of mass production.
Disclosure of Invention
In view of the above, the technical problem to be solved by the present invention is to provide an in-situ grown multicolor fluorescent carbon dot resin material, and a preparation method and an application thereof.
The invention provides an in-situ growth multicolor fluorescent carbon dot resin material, which is obtained by the in-situ growth of matrix resin and a carbon dot precursor in an extrusion mode.
Preferably, the mass ratio of the matrix resin to the carbon dot precursor is 100: (0.33-1).
Preferably, the matrix resin comprises any one or more of low density polyethylene, linear low density polyethylene, high density polyethylene, polypropylene and polymethyl methacrylate.
Preferably, the carbon dot precursor is selected from one or more of a blue fluorescent carbon dot precursor, a yellow fluorescent carbon dot precursor and a white fluorescent carbon dot precursor.
Preferably, the blue fluorescent carbon dot precursor comprises any one or more of ammonium citrate, citric acid and urea;
the yellow fluorescent carbon dot precursor comprises any one or more of 1, 4-dihydroxy anthraquinone, 1, 8-dihydroxy anthraquinone and boric acid;
the white fluorescent carbon dot precursor comprises one or more of ammonium citrate, citric acid and boric acid.
Preferably, the multicolor fluorescent carbon dot resin material is a blue fluorescent resin material, a yellow fluorescent resin material or a white fluorescent resin material;
carbon dots in the blue fluorescent resin material emit visible light with the peak wavelength within the range of 400-500 nm under the excitation of 330-380 nm;
the carbon dots in the yellow fluorescent resin material emit visible light with the peak wavelength of 540-590 nm under the excitation of 330-380 nm.
The invention also provides a preparation method of the multicolor fluorescent carbon dot resin material, which comprises the following steps:
and mixing the matrix resin and the carbon dot precursor, adding the mixture into an extruder for reaction, and growing in situ to obtain the multicolor fluorescent carbon dot resin material.
Preferably, the extruder is selected from a double-screw extruder, the extrusion temperature is between 170 and 200 ℃, and the reaction time is between 2 and 5 min.
The invention also provides application of the in-situ grown multicolor fluorescent carbon dot resin material in a photoinduced white light LED, wherein the multicolor fluorescent carbon dot resin material is a white fluorescent resin material.
The invention also provides an application of the in-situ grown multicolor fluorescent carbon dot resin material in a light conversion film, wherein the multicolor fluorescent carbon dot resin material is a blue fluorescent resin material.
Compared with the prior art, the invention provides the in-situ growth multicolor fluorescent carbon dot resin material, which is obtained by the in-situ growth of matrix resin and carbon dot precursors in an extrusion mode. The carbon dot material provided by the invention has the advantages of rich and simple raw materials, simple and convenient synthesis process, no toxicity, environmental protection and high stability. The preparation process is simple, only the carbon point precursor and the resin are needed to be put into the preparation process, the product is obtained by controlling the extrusion temperature and time, the purification is not needed, and the preparation method is suitable for large-scale production.
Drawings
FIG. 1 is a transmission electron microscope image of the in-situ grown blue fluorescent carbon dot resin material prepared in example 1.
FIG. 2 is a FT-IR spectrum of example 1, wherein (a) is a FT-IR spectrum of the prepared blue fluorescent carbon dot, and FIG. 2 (b) is a FT-IR spectrum of the low density polyethylene and blue fluorescent carbon dot resin material.
Fig. 3 is an XRD image of the blue fluorescent carbon dot prepared in example 1.
FIG. 4 is an X-ray photoelectron spectrum of a blue fluorescent carbon spot prepared in example 1, wherein (a) is an XPS total spectrum of a carbon spot, (b) is a C1s spectrum of a carbon spot, (C) is an N1s spectrum of a carbon spot, and (d) is an O1s spectrum of a carbon spot.
Fig. 5 is a graph of uv absorption and emission spectra under different excitations of the in-situ grown blue fluorescent carbon dot resin material prepared in example 1, wherein fig. 5 (a) is a graph of uv absorption and fig. 5 (b) is a graph of emission spectra under different excitations of the in-situ grown blue fluorescent carbon dot resin material prepared in example 1.
FIG. 6 is a transmission electron microscope image of the in-situ grown white fluorescent carbon dot resin material prepared in example 6.
FIG. 7 is an FT-IR spectrum, an X-ray photoelectron spectrum and an XRD image of a white fluorescent carbon dot, wherein FIG. 7 (a) is an FT-IR spectrum of the prepared white fluorescent carbon dot, FIG. 7 (B-e) is an X-ray photoelectron spectrum of the white fluorescent carbon dot prepared in example 6, wherein (B) is an XPS total spectrum of the carbon dot, (C) is a C1s spectrum of the carbon dot, (d) is a B1s spectrum of the carbon dot, (e) is an O1s spectrum of the carbon dot, and FIG. 7 (f) is an XRD image of the carbon dot prepared in example 6.
Fig. 8 is a graph showing an ultraviolet absorption, excitation, and emission spectra of an aqueous solution of carbon dots prepared in example 6 and emission spectra under different excitations, in which fig. 8 (a) is a graph showing an ultraviolet absorption, excitation, and emission spectra of an aqueous solution of carbon dots prepared in example 6 and fig. 8 (b) is a graph showing an emission spectra of an aqueous solution of carbon dots prepared in example 6 under different excitations.
FIG. 9 is a CIE coordinate diagram and an emission spectrum diagram of the white LED prepared in example 6, wherein (a) is an emission spectrum diagram of the white LED prepared in example 6, and 9 (b) is a CIE coordinate diagram.
FIG. 10 is a photograph of the in-situ grown blue fluorescent carbon dot resin and white fluorescent carbon dot resin prepared in examples 1 and 6 taken with low density polyethylene after irradiation of 365nm light.
Detailed Description
The invention provides an in-situ growth multicolor fluorescent carbon dot resin material, which is obtained by the in-situ growth of matrix resin and a carbon dot precursor in an extrusion mode.
Wherein the mass ratio of the matrix resin to the carbon dot precursor is 100: (0.33 to 1), preferably 100.33, 100, 0.4, 100, 0.5, 100: (0.33 to 1).
In the present invention, the matrix resin includes any one or more of low density polyethylene, linear low density polyethylene, high density polyethylene, polypropylene, and polymethyl methacrylate.
The carbon dot precursor is selected from one or more of a blue fluorescent carbon dot precursor, a yellow fluorescent carbon dot precursor and a white fluorescent carbon dot precursor.
The blue fluorescent carbon dot precursor comprises any one or more of ammonium citrate, citric acid and urea;
the yellow fluorescent carbon dot precursor comprises any one or more of 1, 4-dihydroxy anthraquinone, 1, 8-dihydroxy anthraquinone and boric acid;
the white fluorescent carbon dot precursor comprises one or more of ammonium citrate, citric acid and boric acid.
The multicolor fluorescent carbon dot resin material is a blue fluorescent resin material, a yellow fluorescent resin material or a white fluorescent resin material;
carbon dots in the blue fluorescent resin material emit visible light with the peak wavelength within the range of 400-500 nm under the excitation of 330-380 nm;
the carbon dots in the yellow fluorescent resin material emit visible light with the peak wavelength of 540-590 nm under the excitation of 330-380 nm.
The invention also provides a preparation method of the multicolor fluorescent carbon dot resin material, which comprises the following steps:
and mixing the matrix resin and the carbon dot precursor, adding the mixture into an extruder for reaction, and growing in situ to obtain the multicolor fluorescent carbon dot resin material.
In the present invention, the extruder is selected from twin-screw extruders, the extrusion temperature is between 170 ℃ and 200 ℃, preferably 170, 180, 190, 200, or any value between 170 ℃ and 200 ℃, and the reaction time is between 2 and 5min, preferably 2, 3, 4, 5, or any value between 2 and 5 min.
In the present invention, the carbon dot precursor is reacted in situ in the extruder to generate a fluorescent carbon dot in the resin.
The invention also provides application of the in-situ grown multicolor fluorescent carbon dot resin material in a photoinduced white light LED, wherein the multicolor fluorescent carbon dot resin material is a white fluorescent resin material.
The invention also provides application of the in-situ grown multicolor fluorescent carbon dot resin material in a light conversion film, wherein the multicolor fluorescent carbon dot resin material is a blue fluorescent resin material, the fluorescent resin is directly extruded by a double-screw extruder, an obtained finished product can be used as a master batch of the light conversion film, and the master batch can be blown into the light conversion film by a film blowing machine.
The carbon dot material provided by the invention has the advantages of rich and simple raw materials, simple and convenient synthesis process, no toxicity, environmental protection and high stability. The preparation process is simple, only the carbon point precursor and the resin are needed to be put into the preparation process, the product is obtained by controlling the extrusion temperature and time, the purification is not needed, and the preparation method is suitable for large-scale production.
In order to further understand the present invention, the following examples are provided to illustrate an in-situ grown multicolor fluorescent carbon dot resin material, and a preparation method and applications thereof, and the scope of the present invention is not limited by the following examples.
Example 1:
the preparation method of the blue fluorescent carbon dot material comprises the following steps: weighing 20mg of ammonium citrate, weighing 3g of Low Density Polyethylene (LDPE), mixing in a beaker, adjusting the temperature of a double-screw extruder to 175 ℃, adjusting the rotating speed to 44r/min, pouring the mixed material into the double-screw extruder for extrusion, and discharging after the self-circulation reaction of the extruder is carried out for 3 min.
The preparation method of the blue fluorescent carbon dot comprises the following steps: in order to further characterize the carbon dots in the in-situ extruded blue fluorescent carbon dot material, the temperature of a double-screw extruder is kept at 175 ℃, only 20mg of ammonium citrate is weighed and added into the extruder to react for 3min, the obtained substance is dissolved in ultrapure water, then large particles are removed by filtration through a 0.22-micrometer filter membrane, dialysis is carried out for 24h through a 500Da dialysis membrane, and finally the dialyzed solution is freeze-dried to obtain carbon dot powder for later use.
FIG. 1 is a transmission electron microscope image of in-situ grown blue fluorescent carbon dot resin material, from which it can be seen that carbon dots with uniform size are uniformly dispersed in Low Density Polyethylene (LDPE), and the upper right corner is a high power transmission electron microscope image, and it can be seen that the lattice spacing of the carbon dots is 0.21nm, corresponding to the (001) crystal face of graphite carbon.
FIG. 2 (a) is a FT-IR spectrum of blue fluorescent carbon dots prepared in example 1, the carbon dots being 3431cm -1 And 3233cm -1 The absorption peaks of (2) are stretching vibration peaks of-OH and N-H respectively, which indicates that the CDs surface contains-OH/-NH and is located at 1711cm -1 And 1597cm -1 Are the absorption vibration peaks of the C = O and C = N double bonds, 1409, 1360 and 1187cm, respectively -1 The absorption peaks of (A) are respectively the stretching vibration peaks of COO-, C-N and C-O bonds. 3200cm in FIG. 2 (b) -1 ～3400cm -1 Two stretching vibration peaks with N-H peak are added at 1660cm -1 And 1625cm -1 Two more peaks, the absorption vibration peaks for the C = O and C = N double bonds, respectively, indicate that carbon dots are generated during the in situ extrusion and are evenly distributed in the low density polyethylene.
FIG. 3 is an XRD image of a blue fluorescent carbon dot prepared in example 1, from which it can be seen that there is a broad peak at 27 deg., corresponding to the (002) crystal plane of graphite, and the interplanar spacing is 0.33nm as calculated according to the Bragg equation.
FIG. 4 is an X-ray photoelectron spectrum of a blue fluorescent carbon dot prepared in example 1, wherein the C, N and O contents of the carbon dot are 60%, 12% and 28%, respectively. From the spectrum of C1s at the carbon point, 4 peaks were identified, representing C = C/C-C (284.7 eV), C-O/C = N (286.5 eV), C-N (288.1 eV), C = O (289.3 eV), respectively. From the spectrum of N1s at the carbon point, 3 peaks can be identified, representing C-NH-C (399.1 eV), C = N/-NH respectively 2 (399.8 eV), graphitized N (401.2 eV). From the spectrum of O1s at the carbon point, 3 peaks were identified, representing C = O (531.2 eV), -OH (531.9 eV), and C-O-C/C-OH (533.1 eV), respectively, and these results were in agreement with the analysis of the FT-IR spectrum.
Fig. 5 (a) is a uv-vis absorption spectrum of the in-situ grown blue fluorescent carbon dot resin material prepared in example 1, and it can be seen that the in-situ grown carbon dot material has two distinct absorption peaks. There is a distinct absorption peak at 287nm, which is sp 2 The result of the pi → pi transition of carbon additionally has an absorption peak at 363nm, which is the result of the n → pi transition of C = O. FIG. 5 (b) is an emission spectrum of the in-situ grown blue fluorescent carbon dot resin material prepared in example 1 under different excitations. As can be seen from the figure, the optimal emission peak position of the sample is 436nm, and as the excitation wavelength increases, the emission intensity of the sample increases and then decreases but the peak position remains substantially unchanged, and the fluorescence is typically not excitation wavelength-dependent.
Example 2:
blending of plastics: weighing 6g of Low Density Polyethylene (LDPE) and 3g of Linear Low Density Polyethylene (LLDPE), mixing in a beaker, adjusting the temperature of a double-screw extruder to 180 ℃, adjusting the rotating speed to 44r/min, pouring the mixed material into the double-screw extruder for extrusion, and discharging after the extruder self-circulates for 1min to obtain a mixture with the blending ratio of 2: 1.
The preparation method of the blue fluorescent carbon dot material comprises the following steps: weighing 20mg of ammonium citrate and 5mg of urea, weighing 3g of the blend, mixing the blend in a beaker, adjusting the temperature of a double-screw extruder to 185 ℃, adjusting the rotating speed to 44r/min, pouring the mixed material into the double-screw extruder for extrusion, and discharging after the self-circulation reaction of the extruder for 4 min.
Example 3:
the preparation method of the blue fluorescent carbon dot resin material comprises the following steps: weighing 20mg of citric acid and 10mg of urea, weighing 3g of polypropylene, mixing in a beaker, adjusting the temperature of a double-screw extruder to 185 ℃, adjusting the rotating speed to 44r/min, pouring the mixed material into the double-screw extruder for extrusion, and discharging after the self-circulation reaction of the extruder for 4 min.
Example 4:
blending of plastics: weighing 6g of Low Density Polyethylene (LDPE) and 2g of High Density Polyethylene (HDPE), mixing in a beaker, adjusting the temperature of a double-screw extruder to 180 ℃, adjusting the rotating speed to 44r/min, pouring the mixed material into the double-screw extruder for extrusion, and discharging after the extruder self-circulates for 2min to obtain a mixture with the blending ratio of 3: 1.
The preparation method of the blue fluorescent carbon dot resin material comprises the following steps: weighing 20mg of ammonium citrate, weighing 3g of the blend, mixing the blend in a beaker, adjusting the temperature of a double-screw extruder to 175 ℃, adjusting the rotating speed to 44r/min, pouring the mixed material into the double-screw extruder for extrusion, and discharging after the self-circulation reaction of the extruder is carried out for 3 min.
Example 5:
the preparation method of the blue fluorescent carbon dot resin material comprises the following steps: weighing 20mg of ammonium citrate, weighing 3g of polymethyl methacrylate, mixing the materials in a beaker, adjusting the temperature of a double-screw extruder to 200 ℃, adjusting the rotating speed to 44r/min, pouring the mixed materials into the double-screw extruder for extrusion, and discharging after the self-circulation reaction of the extruder is carried out for 3 min.
Example 6:
the preparation method of the white fluorescent carbon dot material comprises the following steps: weighing 25mg of citric acid and 30mg of boric acid, weighing 3g of low-density polyethylene (LDPE), mixing in a beaker, adjusting the temperature of a double-screw extruder to 180 ℃, adjusting the rotating speed to 44r/min, pouring the mixed material into the double-screw extruder for extrusion, and discharging after the self-circulation reaction of the extruder is carried out for 3 min.
The preparation method of the carbon dots comprises the following steps: in order to further characterize the carbon dots in the in-situ extruded white fluorescent carbon dot material, the temperature of a double-screw extruder is kept at 180 ℃, only 25mg of citric acid and 30mg of citric acid are weighed and added into the extruder to react for 3min, and then carbon dot powder is obtained for later use.
Preparing a photoinduced LED: and (3) carrying out hot pressing on the white fluorescent carbon dot resin obtained by in-situ extrusion to form a film, and then attaching the film to a 365nm ultraviolet light-emitting chip to obtain the white light LED.
FIG. 6 is a transmission electron microscope image of the in-situ grown white fluorescent carbon dot resin material prepared in example 6, from which it can be seen that carbon dots with uniform size are uniformly dispersed in Low Density Polyethylene (LDPE), and the upper right corner is a high power transmission electron microscope image, it can be seen that the lattice spacing of the carbon dots is 0.21nm, corresponding to the (001) crystal plane of graphitic carbon.
FIG. 7 (a) is an FT-IR spectrum at 3226cm of a fluorescent carbon dot prepared in example 6 -1 The apparent absorption band of the strain is the stretching vibration of-OH at 1628cm -1 、1429cm -1 And 1190cm -1 The absorption bands at (B) correspond to the stretching vibration of C = O, B-O and B-O-C, respectively. Fig. 7 (B-e) shows that the contents of O, C, and B elements are 39%, 33%, and 28%, respectively, and 3 peaks, representing C = C/C-C, C-O, and C = O, can be distinguished from the spectrum of C1s at the carbon point. 3 peaks can be separated from the spectrogram of B1s of the carbon point and respectively represent B 2 O 3 、BCO 2 And B-O. From the spectrum of the O1s at the carbon point, 2 peaks were identified, representing C = O and C-O, respectively, which are consistent with the analysis of the FT-IR spectrogram.
The carbon dots in FIG. 7 (f) have typical B at 14.6 °, 28.0 °, 28.6 ° and 40.3% 2 O 3 Peak(s).
Fig. 8 (a) is a uv absorption, excitation, and emission spectrum diagram of an aqueous solution of the carbon dot prepared in example 6, and fig. 8 (b) is an emission spectrum diagram of an aqueous solution of the carbon dot prepared in example 6 under different excitations. The fluorescence spectrum of the carbon dot aqueous solution of the fluorescent material shows the characteristic of excitation wavelength dependence, and has the strongest emission at 465nm under the excitation of 375 nm.
FIG. 9 (a) is an emission spectrum of the white LED prepared in example 6, and 9 (b) is a CIE diagram, which gives white light having CIE coordinates (0.33 ) and CRI of 80.
Example 7:
the preparation method of the white fluorescent carbon dot material comprises the following steps: weighing 20mg of ammonium citrate and 30mg of boric acid, weighing 3g of polypropylene, mixing the materials in a beaker, adjusting the temperature of a double-screw extruder to 185 ℃, adjusting the rotating speed to 44r/min, pouring the mixed materials into the double-screw extruder for extrusion, and discharging after the self-circulation reaction of the extruder is carried out for 3 min.
Example 8:
the preparation method of the yellow fluorescent carbon dot resin material comprises the following steps: respectively weighing 20mg 1, 4-dihydroxy anthraquinone and 20mg 1, 8-dihydroxy anthraquinone, further weighing 3g of low-density polyethylene, mixing in a beaker, adjusting the temperature of a double-screw extruder to 185 ℃, adjusting the rotating speed to 44r/min, pouring the mixed material into the double-screw extruder for extrusion, and discharging after the extruder carries out self-circulation reaction for 5 min.
Example 9:
the preparation method of the yellow fluorescent carbon dot resin material comprises the following steps: respectively weighing 20mg 1, 4-dihydroxy anthraquinone and 20mg 1, 8-dihydroxy anthraquinone, further weighing 3g polypropylene, then mixing the polypropylene in a beaker, adjusting the temperature of a double-screw extruder to 185 ℃, adjusting the rotating speed to 44r/min, pouring the mixed material into the double-screw extruder for extrusion, and discharging after the extruder carries out self-circulation reaction for 5 min.
Example 10:
the preparation method of the yellow fluorescent carbon dot resin material comprises the following steps: respectively weighing 20mg of 1, 4-dihydroxyanthraquinone and 20mg of boric acid, then weighing 3g of low-density polyethylene, mixing the materials in a beaker, adjusting the temperature of a double-screw extruder to 185 ℃, adjusting the rotating speed to 44r/min, pouring the mixed materials into the double-screw extruder for extrusion, and discharging after the extruder carries out self-circulation reaction for 5 min.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The in-situ growth multicolor fluorescent carbon dot resin material is characterized in that a matrix resin and a carbon dot precursor are subjected to in-situ growth in an extrusion mode to obtain the multicolor fluorescent carbon dot resin material.
2. The multicolor fluorescent carbon dot resin material according to claim 1, wherein the mass ratio of the matrix resin to the carbon dot precursor is 100: (0.33-1).
3. The multicolor fluorescent carbon dot resin material according to claim 1, wherein the matrix resin comprises any one or more of low density polyethylene, linear low density polyethylene, high density polyethylene, polypropylene and polymethyl methacrylate.
4. The multicolor fluorescent carbon dot resin material according to claim 1, wherein the carbon dot precursor is one or more selected from a blue fluorescent carbon dot precursor, a yellow fluorescent carbon dot precursor and a white fluorescent carbon dot precursor.
5. The multicolor fluorescent carbon dot resin material according to claim 1, wherein the blue fluorescent carbon dot precursor comprises any one or more of ammonium citrate, citric acid and urea;
the yellow fluorescent carbon dot precursor comprises any one or more of 1, 4-dihydroxy anthraquinone, 1, 8-dihydroxy anthraquinone and boric acid;
the white fluorescent carbon dot precursor comprises one or more of ammonium citrate, citric acid and boric acid.
6. The multicolor fluorescent carbon dot resin material according to claim 1, wherein the multicolor fluorescent carbon dot resin material is a blue fluorescent resin material, a yellow fluorescent resin material, or a white fluorescent resin material;
carbon dots in the blue fluorescent resin material emit visible light with the peak wavelength within the range of 400-500 nm under the excitation of 330-380 nm;
the carbon dots in the yellow fluorescent resin material emit visible light with the peak wavelength of 540-590 nm under the excitation of 330-380 nm.
7. A method for preparing a multicolor fluorescent carbon dot resin material according to any one of claims 1 to 6, which comprises the following steps:
and mixing the matrix resin and the carbon dot precursor, adding the mixture into an extruder for reaction, and growing in situ to obtain the multicolor fluorescent carbon dot resin material.
8. The method for preparing the rubber composition according to claim 7, wherein the extruder is selected from twin-screw extruders, the extrusion temperature is 170-200 ℃, and the reaction time is 2-5 min.
9. The use of the in-situ grown multicolor fluorescent carbon dot resin material as claimed in any one of claims 1 to 6 in a photo-induced white light LED, wherein the multicolor fluorescent carbon dot resin material is a white fluorescent resin material.
10. The use of the in-situ grown multicolor fluorescent carbon dot resin material as claimed in any one of claims 1 to 6 in a light conversion film, wherein the multicolor fluorescent carbon dot resin material is a blue fluorescent resin material.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107057321A (en) * | 2017-04-20 | 2017-08-18 | 宁波浙铁大风化工有限公司 | Excellent weatherable polycarbonate material of a kind of color and preparation method thereof |
| CN111662524A (en) * | 2020-05-26 | 2020-09-15 | 华南农业大学 | Red fluorescent carbon dot light conversion film and preparation method and application thereof |
| CN113603993A (en) * | 2021-07-13 | 2021-11-05 | 南京工业大学 | Preparation method of self-healing polymer-nano composite material |
| CN114591737A (en) * | 2022-03-16 | 2022-06-07 | 北京化工大学 | Multicolor fluorescent carbon dots, and preparation method and application thereof |
| CN114685921A (en) * | 2020-12-31 | 2022-07-01 | 苏州国纳思新材料科技有限公司 | Preparation method of quantum dot resin material |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107057321A (en) * | 2017-04-20 | 2017-08-18 | 宁波浙铁大风化工有限公司 | Excellent weatherable polycarbonate material of a kind of color and preparation method thereof |
| CN111662524A (en) * | 2020-05-26 | 2020-09-15 | 华南农业大学 | Red fluorescent carbon dot light conversion film and preparation method and application thereof |
| CN114685921A (en) * | 2020-12-31 | 2022-07-01 | 苏州国纳思新材料科技有限公司 | Preparation method of quantum dot resin material |
| CN113603993A (en) * | 2021-07-13 | 2021-11-05 | 南京工业大学 | Preparation method of self-healing polymer-nano composite material |
| CN114591737A (en) * | 2022-03-16 | 2022-06-07 | 北京化工大学 | Multicolor fluorescent carbon dots, and preparation method and application thereof |
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