CN117363306A - Quantum dot lens and preparation method thereof - Google Patents
Quantum dot lens and preparation method thereof Download PDFInfo
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- CN117363306A CN117363306A CN202311320407.8A CN202311320407A CN117363306A CN 117363306 A CN117363306 A CN 117363306A CN 202311320407 A CN202311320407 A CN 202311320407A CN 117363306 A CN117363306 A CN 117363306A
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- 239000002096 quantum dot Substances 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 47
- 239000000945 filler Substances 0.000 claims abstract description 74
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000003960 organic solvent Substances 0.000 claims abstract description 16
- 239000003999 initiator Substances 0.000 claims abstract description 14
- 239000000178 monomer Substances 0.000 claims abstract description 14
- 239000012790 adhesive layer Substances 0.000 claims abstract description 11
- 239000004814 polyurethane Substances 0.000 claims abstract description 9
- 229920002635 polyurethane Polymers 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 8
- -1 acrylic ester Chemical class 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 22
- 239000000853 adhesive Substances 0.000 claims description 22
- 230000001070 adhesive effect Effects 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 239000000377 silicon dioxide Substances 0.000 claims description 11
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 10
- 235000012239 silicon dioxide Nutrition 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 8
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 5
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- GNSFRPWPOGYVLO-UHFFFAOYSA-N 3-hydroxypropyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCO GNSFRPWPOGYVLO-UHFFFAOYSA-N 0.000 claims description 3
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 claims description 3
- 238000000016 photochemical curing Methods 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 125000003944 tolyl group Chemical group 0.000 claims description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Substances CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims 1
- KBLWLMPSVYBVDK-UHFFFAOYSA-N cyclohexyl prop-2-enoate Chemical compound C=CC(=O)OC1CCCCC1 KBLWLMPSVYBVDK-UHFFFAOYSA-N 0.000 claims 1
- XQACRXVFENATBU-UHFFFAOYSA-N dodecan-2-yl prop-2-enoate Chemical compound CCCCCCCCCCC(C)OC(=O)C=C XQACRXVFENATBU-UHFFFAOYSA-N 0.000 claims 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 abstract description 5
- 230000000052 comparative effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- XMLYCEVDHLAQEL-UHFFFAOYSA-N 2-hydroxy-2-methyl-1-phenylpropan-1-one Chemical compound CC(C)(O)C(=O)C1=CC=CC=C1 XMLYCEVDHLAQEL-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Nonlinear Science (AREA)
- Organic Chemistry (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The application relates to the technical field of LCD backlight, and particularly discloses a quantum dot lens and a preparation method thereof. The quantum dot lens comprises a lens body and a reflecting mirror, wherein a bonding layer is arranged between the lens body and the reflecting mirror, and raw materials of the bonding layer comprise the following components in parts by weight: 70-80 parts of polyurethane acrylic ester, 15-25 parts of monomer, 1-3 parts of initiator and 5-10 parts of modified filler; the raw materials of the modified filler comprise epoxy acrylate, an organic solvent and a high-temperature-resistant filler. The high-temperature-resistant filler is modified in the application, so that the epoxy acrylate is uniformly wrapped on the high-temperature-resistant filler, the epoxy acrylate and the polyurethane acrylate have good compatibility, the high-temperature-resistant filler can be uniformly dispersed in the adhesive layer, and the epoxy acrylate has high-temperature resistance, so that the high-temperature resistance of the quantum dot lens is improved.
Description
Technical Field
The application relates to the technical field of LCD backlight, in particular to a quantum dot lens and a preparation method thereof.
Background
In recent years, the development of backlight source technology is rapid, new technology and new product are continuously introduced, and the LED backlight technology has become the main stream of LCD screen backlight market gradually. The quantum dot material technology has been paid attention to, and particularly, the quantum dot fluorescent powder has a series of unique optical properties of adjustable spectrum along with the size, narrow half-wave width of an emission peak, small Stokes displacement, high excitation efficiency and the like, and is widely focused by the LED backlight industry. The quantum dot lens is formed by bonding a lens body and a reflecting mirror, quantum dot materials are contained in the quantum dot lens, and in the use process of the quantum dot lens, the temperature rise is caused along with a light source, and the high temperature resistance of common bonding glue is poor, so that the joint of the lens body and the reflecting mirror can fall off, and the use of the quantum dot lens is affected.
Disclosure of Invention
In order to improve the high temperature resistance of the prepared quantum dot lens, the application provides a quantum dot lens and a preparation method thereof.
In a first aspect, the present application provides a quantum dot lens, which adopts the following technical scheme:
the quantum dot lens comprises a lens body and a reflecting mirror, wherein a bonding layer is arranged between the lens body and the reflecting mirror, and raw materials of the bonding layer comprise the following components in parts by weight: 70-80 parts of polyurethane acrylic ester, 15-25 parts of monomer, 1-3 parts of initiator and 5-10 parts of modified filler; the raw materials of the modified filler comprise epoxy acrylate, an organic solvent and a high-temperature-resistant filler.
Through adopting above-mentioned technical scheme, dissolve epoxy acrylate in organic solvent, carry out the modification to high temperature resistant filler for epoxy acrylate evenly wraps up on high temperature resistant filler, and epoxy acrylate has better compatibility with polyurethane acrylate, thereby makes high temperature resistant filler can evenly disperse in the tie coat, and epoxy acrylate itself just has higher high temperature resistant performance, thereby has improved the high temperature resistant performance that forms the tie coat, makes the junction of lens body and speculum be difficult for taking place to drop under high temperature.
In a specific embodiment, the high temperature resistant filler comprises a mixture of nano titanium dioxide and silicon dioxide.
By adopting the technical scheme, the cooperation of the nano titanium dioxide and the silicon dioxide can not only play a role in enhancing the high temperature resistance of the bonding layer, but also further improve the bonding strength of the bonding layer.
In a specific embodiment, the organic solvent is toluene.
In a specific embodiment, the method of preparing the modified filler comprises the steps of:
firstly, dissolving epoxy acrylate in an organic solvent, stirring and mixing uniformly to obtain a modified liquid, adding the high-temperature-resistant filler into a high-speed mixer, slowly spraying the modified liquid on the high-temperature-resistant filler in stirring in the stirring process, continuing stirring after spraying, and drying to obtain the modified filler.
Through adopting the technical scheme, firstly, the epoxy acrylate is dissolved in the organic solvent to obtain the modified liquid, then the modified liquid is sprayed in the process of stirring the high-temperature-resistant filler, and then the organic solvent is removed after drying, so that the epoxy acrylate is wrapped on the high-temperature-resistant filler to obtain the modified filler.
In a specific embodiment, the weight ratio of the modifying liquid to the refractory filler is 1: (12-14).
Through adopting above-mentioned technical scheme, further limited the ratio of modified liquid and high temperature resistant filler in this application for epoxy acrylate can be better wrap up on high temperature resistant filler, thereby improved high temperature resistant filler's modification effect.
In a specific embodiment, the drying temperature is 75-85 ℃.
In a specific embodiment, the monomer comprises one or more of 2-hydroxyethyl acrylate, hydroxypropyl methacrylate, 3, 5-trimethylcyclohexyl acrylate, dodecyl 2-acrylate.
In a specific embodiment, the initiator comprises one or more of 2-hydroxy-2-methyl-1-phenyl-1-propanone, 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide, azobisisobutyronitrile.
In a second aspect, the present application provides a method for preparing a quantum dot lens, which adopts the following technical scheme:
the preparation method of the quantum dot lens comprises the following steps:
using a die to obtain a reflector by high-temperature injection molding of the optical resin material; the optical resin material is doped with quantum dot fluorescent material, and then the lens body is obtained through high-temperature injection molding;
coating liquid waterproof resin on the inner surface and the outer surface of the lens body, standing and spin-drying after coating, and then thermosetting or photo-curing to obtain a waterproof body;
and (3) uniformly stirring and mixing polyurethane acrylic ester, a monomer, an initiator and a modified filler to obtain an adhesive, and then adhering the waterproof body and the reflector by using the adhesive to enable the adhesive to form an adhesive layer between the waterproof body and the reflector to obtain the quantum dot lens.
By adopting the technical scheme, the quantum dot lens with good high temperature resistance is prepared by using the method.
In summary, the present application includes at least one of the following beneficial technical effects:
1. according to the method, the epoxy acrylate is dissolved in the organic solvent to modify the high-temperature-resistant filler, so that the epoxy acrylate is uniformly wrapped on the high-temperature-resistant filler, and the epoxy acrylate and the polyurethane acrylate have good compatibility, so that the high-temperature-resistant filler can be uniformly dispersed in the adhesive layer, and the epoxy acrylate has high-temperature resistance, so that the high-temperature resistance of the adhesive layer is improved, and the connection between the lens body and the reflecting mirror is not easy to fall off at high temperature; 2. in the method, epoxy acrylate is firstly dissolved in an organic solvent to obtain a modified liquid, then the modified liquid is sprayed in the process of stirring the high-temperature-resistant filler, and then the modified liquid is dried to remove the organic solvent, so that the epoxy acrylate is wrapped on the high-temperature-resistant filler to obtain the modified filler;
3. according to the method, the lens body and the reflector are manufactured by using the die and the optical resin material, then the lens body is subjected to waterproof treatment to obtain a waterproof body, and finally the waterproof body and the reflector are adhered by using the adhesive to obtain the quantum dot lens with good high temperature resistance.
Detailed Description
The present application is described in further detail below with reference to examples.
All the starting materials in the examples are commercially available. Wherein epoxy acrylate CAS number: 71281-65-7; nano titanium dioxide CAS No.: 13463-67-7; the silicon dioxide is micron silicon dioxide provided by Zhejiang Mannich nano technology Co., ltd; monomers in this application include, but are not limited to, for example, one or more of 2-hydroxyethyl acrylate, hydroxypropyl methacrylate, 3, 5-trimethylcyclohexyl acrylate, dodecyl 2-acrylate, 2-hydroxyethyl acrylate being preferred in this application; the initiator in the present application includes, but is not limited to, for example, one or more of 2-hydroxy-2-methyl-1-phenyl-1-propanone, 2,4, 6-trimethylbenzoyl-diphenylphosphine oxide, azobisisobutyronitrile, preferably 2-hydroxy-2-methyl-1-phenyl-1-propanone in the present application.
Preparation example
Preparation example 1
Preparation example 1 provides a preparation method of modified filler, which comprises the following steps:
firstly, dissolving epoxy acrylate in an organic solvent, and uniformly stirring and mixing to obtain a modified liquid; adding the high-temperature-resistant filler into a high-speed mixer, slowly spraying the modified liquid on the high-temperature-resistant filler in stirring, continuing stirring for 1h after the spraying is finished, and drying at 75 ℃ for 1h to obtain the modified filler; wherein the organic solvent is toluene; the high-temperature-resistant filler is a mixture composed of nano titanium dioxide and silicon dioxide, and the weight ratio of the nano titanium dioxide to the silicon dioxide is 1:3, a step of; the weight ratio of the epoxy acrylate to the organic solvent is 1:5, a step of; the weight ratio of the modifying liquid to the high-temperature resistant filler is 1:11.
preparation example 2
The preparation example 2 is different from the preparation example 1 in that the high-temperature-resistant filler is nano titanium dioxide; the remaining steps are identical to those of preparation 1.
Preparation example 3
Preparation example 3 differs from preparation example 1 in that the high temperature resistant filler is silica; the remaining steps are identical to those of preparation 1.
Preparation example 4
The difference between the preparation example 4 and the preparation example 1 is that the weight ratio of the modified liquid to the high temperature resistant filler is 1:12; the remaining steps are identical to those of preparation 1.
Preparation example 5
The difference between the preparation example 5 and the preparation example 1 is that the weight ratio of the modified liquid to the high temperature resistant filler is 1:13; the remaining steps are identical to those of preparation 1.
Preparation example 6
The difference between the preparation example 6 and the preparation example 1 is that the weight ratio of the modified liquid to the high temperature resistant filler is 1:14; the remaining steps are identical to those of preparation 1.
Preparation example 7
The difference between the preparation example 7 and the preparation example 1 is that the weight ratio of the modified liquid to the high temperature resistant filler is 1:15; the remaining steps are identical to those of preparation 1.
Preparation example 8
Preparation example 8 differs from preparation example 5 in that during stirring, the modified liquid is slowly sprayed on the stirred high-temperature-resistant filler, after spraying, stirring is continued for 1 hour, and then drying is carried out at 80 ℃ for 1 hour, so as to obtain the modified filler; the remaining steps are identical to those of preparation 5.
Preparation example 9
Preparation example 9 differs from preparation example 5 in that during stirring, the modified liquid is slowly sprayed on the stirred high-temperature-resistant filler, after the spraying is finished, stirring is continued for 1 hour, and then drying is carried out at 85 ℃ for 1 hour, so as to obtain the modified filler; the remaining steps are identical to those of preparation 5.
Examples
Example 1
Embodiment 1 provides a method for preparing a quantum dot lens, comprising the following steps:
using a die to obtain a reflector by high-temperature injection molding of the optical resin material; the optical resin material is doped with quantum dot fluorescent material, and then the lens body is obtained through high-temperature injection molding;
coating liquid waterproof resin on the inner surface and the outer surface of the lens body, standing and spin-drying after coating, and then thermosetting or photo-curing to obtain a waterproof body; in this embodiment, the heat is set;
uniformly stirring and mixing 70kg of polyurethane acrylic ester, 15kg of monomer, 1kg of initiator and 5kg of modified filler in preparation example 1 to obtain an adhesive, and then adhering the waterproof body and the reflector by using the adhesive to enable the adhesive to be solidified between the waterproof body and the reflector to form an adhesive layer, so as to obtain the quantum dot lens; wherein the monomer is 2-hydroxyethyl acrylate; the initiator is 2-hydroxy-2-methyl-1-phenyl-1-propanone.
Examples 2 to 9
As shown in Table 1, the main difference between examples 1-9 is the selection of modified fillers.
TABLE 1 selection of modified fillers for examples 1-9
Example 10
Example 10 differs from example 8 in that 75kg of urethane acrylate, 20kg of monomer, 2kg of initiator, 8kg of modified filler in preparation example 1 are stirred and mixed uniformly to obtain an adhesive, and then the waterproof body and the reflector are adhered by the adhesive, so that the adhesive is solidified between the waterproof body and the reflector to form an adhesive layer, and a quantum dot lens is obtained; the remaining steps are in accordance with example 8.
Example 11
Example 11 differs from example 8 in that 80kg of urethane acrylate, 25kg of monomer, 3kg of initiator, 10kg of modified filler in preparation example 1 are stirred and mixed uniformly to obtain an adhesive, and then the waterproof body and the reflector are adhered by the adhesive, so that the adhesive is solidified between the waterproof body and the reflector to form an adhesive layer, and a quantum dot lens is obtained; the remaining steps are in accordance with example 8.
Comparative example
Comparative example 1
Comparative example 1 differs from example 1 in that 75kg of urethane acrylate, 15kg of monomer, and 1kg of initiator are stirred and mixed uniformly to obtain an adhesive, and then the waterproof body and the reflector are adhered by the adhesive, so that the adhesive is solidified between the waterproof body and the reflector to form an adhesive layer, and a quantum dot lens is obtained; the remaining steps are in accordance with example 1.
Comparative example 2
Comparative example 2 is different from example 1 in that 70kg of urethane acrylate, 15kg of monomer, 1kg of initiator and 5kg of filler are stirred and mixed uniformly to obtain an adhesive, and then the waterproof body and the reflector are adhered by the adhesive, so that the adhesive is solidified between the waterproof body and the reflector to form an adhesive layer, and a quantum dot lens is obtained; wherein the filler is a mixture composed of nano titanium dioxide and silicon dioxide, and the weight ratio of the nano titanium dioxide to the silicon dioxide is 1:3, a step of; the remaining steps are in accordance with example 1.
Performance test temperature resistance detection: and adding the quantum dot lenses in the embodiments into an oven, and continuously heating until the bonding layer softens and flows, namely the highest temperature is obtained, and the higher the temperature is, the better the high temperature resistance of the quantum dot lenses is.
TABLE 2 Performance test results for Quantum dot lenses
| Sample of | Highest temperature (. Degree. C.) |
| Example 1 | 90 |
| Example 2 | 85 |
| Example 3 | 86 |
| Example 4 | 95 |
| Example 5 | 97 |
| Example 6 | 97 |
| Example 7 | 91 |
| Example 8 | 98 |
| Example 9 | 98 |
| Example 10 | 97 |
| Example 11 | 97 |
| Comparative example 1 | 71 |
| Comparative example 2 | 80 |
Combining example 1 and comparative examples 1-2, the high temperature resistance of the quantum dot lens in example 1 is optimal, and it can be seen that when the binder is prepared, the epoxy acrylate modified high temperature resistant filler is added into the raw material, the high temperature resistant filler is uniformly dispersed in the adhesive layer, and the epoxy acrylate has higher high temperature resistance, so that the high temperature resistance of the finally prepared quantum dot lens is improved.
By combining the embodiments 1-3, the high temperature resistance of the quantum dot lens in the embodiment 1 is optimal, and the high temperature resistance of the quantum dot lens can be improved by using the mixture composed of the high temperature resistant filler, preferably nano titanium dioxide and silicon dioxide, to prepare the modified filler with good effect.
In combination with examples 1 and 4-7, the quantum dot lenses in examples 4-6 have better high temperature resistance, and it can be seen that when preparing the modified filler, the ratio of the modified liquid to the high temperature resistant filler is preferably 1: (12-14) so that the epoxy acrylate is uniformly wrapped on the high-temperature-resistant filler, and the modification effect on the high-temperature-resistant filler is better.
In combination with examples 5, 8 and 9, the high temperature resistance of the quantum dot lenses in examples 5, 8 and 9 is not greatly different, and it can be seen that when the modified filler is prepared, the high temperature resistance of the quantum dot lenses is not greatly affected by increasing the drying temperature in the range of 75-85 ℃ when the modified filler is dried.
By combining example 8, example 10 and example 11, the high temperature resistance of the quantum dot lenses in example 8, example 10 and example 11 is not greatly different, and it is seen that increasing the amount of raw materials used in the preparation of the binder has little effect on the high temperature resistance of the prepared quantum dot lenses.
The present embodiment is merely illustrative of the present application and is not intended to be limiting, and those skilled in the art, after having read the present specification, may make modifications to the present embodiment without creative contribution as required, but is protected by patent laws within the scope of the claims of the present application.
Claims (9)
1. The utility model provides a quantum dot lens, includes lens body and speculum, the lens body with be provided with tie coat, its characterized in that between the speculum: the raw materials of the bonding layer comprise the following components in parts by weight: 70-80 parts of polyurethane acrylic ester, 15-25 parts of monomer, 1-3 parts of initiator and 5-10 parts of modified filler; the raw materials of the modified filler comprise epoxy acrylate, an organic solvent and a high-temperature-resistant filler.
2. A quantum dot lens according to claim 1, wherein: the high-temperature-resistant filler comprises a mixture of nano titanium dioxide and silicon dioxide.
3. A quantum dot lens according to claim 2, wherein: the organic solvent is toluene.
4. A quantum dot lens according to claim 3, wherein: the preparation method of the modified filler comprises the following steps:
firstly, dissolving epoxy acrylate in an organic solvent, stirring and mixing uniformly to obtain a modified liquid, adding the high-temperature-resistant filler into a high-speed mixer, slowly spraying the modified liquid on the high-temperature-resistant filler in stirring in the stirring process, continuing stirring after spraying, and drying to obtain the modified filler.
5. The quantum dot lens of claim 4, wherein: the weight ratio of the modifying liquid to the high-temperature-resistant filler is 1: (12-14).
6. The quantum dot lens of claim 4, wherein: the drying temperature is 75-85 ℃.
7. A quantum dot lens according to claim 1, wherein: the monomer comprises one or more of 2-hydroxyethyl acrylate, hydroxypropyl methacrylate, 3, 5-trimethyl cyclohexyl acrylate and 2-dodecyl acrylate.
8. A quantum dot lens according to claim 1, wherein: the initiator comprises one or more of 2-hydroxy-2-methyl-1-phenyl-1-acetone, 2,4, 6-trimethylbenzoyl-diphenyl phosphine oxide and azodiisobutyronitrile.
9. A method for preparing a quantum dot lens according to any one of claims 1 to 8, wherein: the method comprises the following steps:
using a die to obtain a reflector by high-temperature injection molding of the optical resin material; the optical resin material is doped with quantum dot fluorescent material, and then the lens body is obtained through high-temperature injection molding;
coating liquid waterproof resin on the inner surface and the outer surface of the lens body, standing and spin-drying after coating, and then thermosetting or photo-curing to obtain a waterproof body;
and (3) uniformly stirring and mixing polyurethane acrylic ester, a monomer, an initiator and a modified filler to obtain an adhesive, and then adhering the waterproof body and the reflector by using the adhesive to enable the adhesive to form an adhesive layer between the waterproof body and the reflector to obtain the quantum dot lens.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001163937A (en) * | 1999-12-07 | 2001-06-19 | Nippon Kayaku Co Ltd | Resin composition for lens and lens sheet |
| CN105670552A (en) * | 2016-01-26 | 2016-06-15 | 上海都伟光伏科技有限公司 | One-component acrylate structure adhesive with ageing resistance and high-temperature resistance and preparation method of acrylate structure adhesive |
| CN107828368A (en) * | 2017-11-16 | 2018-03-23 | 广州日高新材料科技有限公司 | Ultraviolet photo-curing cementing agent and preparation method thereof |
| CN114621690A (en) * | 2021-04-21 | 2022-06-14 | 艾硕新材料(上海)有限公司 | High-temperature and high-humidity resistant photocuring adhesive and preparation method thereof |
-
2023
- 2023-10-12 CN CN202311320407.8A patent/CN117363306B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001163937A (en) * | 1999-12-07 | 2001-06-19 | Nippon Kayaku Co Ltd | Resin composition for lens and lens sheet |
| CN105670552A (en) * | 2016-01-26 | 2016-06-15 | 上海都伟光伏科技有限公司 | One-component acrylate structure adhesive with ageing resistance and high-temperature resistance and preparation method of acrylate structure adhesive |
| CN107828368A (en) * | 2017-11-16 | 2018-03-23 | 广州日高新材料科技有限公司 | Ultraviolet photo-curing cementing agent and preparation method thereof |
| CN114621690A (en) * | 2021-04-21 | 2022-06-14 | 艾硕新材料(上海)有限公司 | High-temperature and high-humidity resistant photocuring adhesive and preparation method thereof |
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