CN106863935A - A kind of quantum dot film and preparation method thereof - Google Patents
A kind of quantum dot film and preparation method thereof Download PDFInfo
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- CN106863935A CN106863935A CN201710004273.7A CN201710004273A CN106863935A CN 106863935 A CN106863935 A CN 106863935A CN 201710004273 A CN201710004273 A CN 201710004273A CN 106863935 A CN106863935 A CN 106863935A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/164—Drying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- 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
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- 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
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
- C09J163/10—Epoxy resins modified by unsaturated compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- 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
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Abstract
Quantum dot film of optics display field and preparation method thereof is applied to the present invention relates to a kind of.The quantum dot film is made up of the first basement membrane, quantum dot layer and the second basement membrane, the quantum dot layer is located between the first basement membrane and the second basement membrane, and the quantum dot layer includes photocuring glue, the CdS quantum dots and light diffusing agent that are scattered in the photocuring glue.Its preparation method including prepare quantum dot concentrate, prepare photocuring glue material, form quantum dot layer on the first basement membrane, the second basement membrane is placed on quantum dot layer and photocuring film forming etc. step.Beneficial effects of the present invention are, uniform and stable dispersion of the CdS quantum dots in the optic-solidified adhesive aqueous systems of a hundred per cent solid content, therefore the quantum luminous efficiency of the quantum dot film for obtaining is high；Photocuring film forming, it is not necessary to heat cure, quantum dot will not be too high and impaired because of temperature, while on the one hand reducing operation, production efficiency is improved, and on the other hand reduces equipment investment and energy resource consumption, production cost reduction.
Description
Technical field
The present invention relates to quantum dot field of membrane preparation, and in particular to a kind of quantum dot film and preparation method thereof.
Background technology
Liquid crystal display is widely used in PC, TV, monitor, mobile phone, personal digital assistant (PDA), game
The similar fields such as equipment, electronic reading device, digital camera.Traditional LCD device is equipped with a back light unit, and they are together
The backlight of white is converted into required target Show Color.The colored optical property that this traditional light-emitting device is sent has
Limit, and luminous efficiency is relatively low.Therefore, the luminescent method and device of necessary developing low-cost obtain high-purity, high efficiency,
And the colourama of performance boost.Quantum dot film of the invention sandwiches backlight module unit, and this new liquid-crystal apparatus are combined
The characteristics of blue light source has colour gamut high.
Patent CN 201480005245.1 is disclosed one and quantum dot film is prepared using photocuring and heat cure two-step method
Patent of invention.Oil-soluble quantum dot is dispersed in methacrylic resin containing photocurable and heat-setting ring by the invention
Solidification is made quantum dot film layer successively in the system of oxygen tree fat.The reason for invention is explained using two-stage cure is because simple
High temperature required for curing process can cause the oxidation of quantum dot, so as to reduce luminous effect of the quantum dot in quantum dot film
Rate.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of quantum dot film and preparation method thereof, the primary amount of being for solving
The problem of son point material stable dispersion in the optic-solidified adhesive aqueous systems of a hundred per cent solid content.Because quanta point material is to water oxygen
Sensitivity, after synthesis, CdS quantum dots are transferred in the volatile organic solvents such as toluene, dichloromethane, n-hexane,
But when directly preparing quantum dot film with the quantum dot product containing organic solvent, quantum dot is in photocuring glue and diaphragm
Dispersiveness is not good.The method that the present invention is used is the esters of acrylic acid list that the transfer of quantum nanoparticles material is dispersed to photocuring glue
In body, quantum dot concentrate is made, then quantum dot concentrate is scattered in corresponding photocuring glue, will be finally dispersed with
One-step method is made quantum dot film to the photocuring glue of quantum dot under light illumination, saves operation and avoids film-forming process from using high temperature,
Ensure that the quantum dot film for preparing has preferable luminous efficiency.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of quantum dot film, it is by the first basement membrane, quantum dot
Layer and the second basement membrane composition, the quantum dot layer be sandwiched between first basement membrane and the second basement membrane and make first basement membrane and
Second basement membrane is separated, and the quantum dot layer includes photocuring glue, the quantum dot nano material being scattered in the photocuring glue
Material and light diffusing agent, the photocuring glue is by the acrylic ester monomer of 50~80wt%, the acrylate of 18~48wt%
Class performed polymer and 0.5~6wt% light triggers are constituted.
Specifically, the content of quantum dot is 0.01~10wt% in the quantum dot layer.
Specifically, the thickness of the quantum dot layer is 10~250 μm.
Specifically, the content of light diffusing agent is 0.1~20wt% in the quantum dot layer.
Specifically, the light diffusing agent is silica, titanium dioxide or organic silicon particle that particle diameter is 0.5~20 μm.
Specifically, the refractive index of the photocuring glue is 1.48~1.63, viscosity is 50~3000cPs.Preferably, institute
It is 1.50~1.60 to state the refractive index of photocuring glue, and viscosity is 150~2000cPs.
Specifically, the acrylic ester monomer includes EDIA, methacrylic acid-beta-hydroxy ethyl ester, propylene
Sour isobornyl thiocyanoacetate, propoxylation trimethylolpropane trimethacrylate, lauryl methacrylate, lauryl acrylate, methyl
In isobornyl acrylate, alkyl methacrylate, neopentylglycol diacrylate, ethylene glycol dimethacrylate one
Plant or various；The esters of acrylic acid performed polymer includes epoxy acrylate, aliphatic urethane acrylate, modified epoxy third
One or more in olefin(e) acid ester；The light trigger is one or more in light trigger 1173,184,907, TPO.
Specifically, first basement membrane and the second basement membrane are PET film, mist degree PET film and water oxygen Obstruct membrane etc. has water oxygen
Any one in the material of barriering effect.The material of the first basement membrane and the second basement membrane can be the same or different.
The present invention also provides the method for preparing above-mentioned quantum dot film, and it comprises the following steps:
1) formation quantum dot is dense in CdS quantum dots being scattered in into the acrylic ester monomer of the photocuring glue
Contracting liquid；
2) light diffusing agent, quantum dot concentrate are scattered in the photocuring glue and form quantum dot photocuring glue material
Material；
3) quantum dot light solidified glue material is coated and form the quantum dot layer on first basement membrane；
4) second basement membrane is placed on the quantum dot layer；
5) solidify under UV illumination the quantum dot layer, obtain final product the quantum dot film.
Specifically, step 1) in will deposit CdS quantum dots organic solvent rotary evaporation removal, be subsequently adding institute
The acrylic ester monomer in photocuring glue is stated, ultrasonic disperse again is first stirred, the quantum dot concentrate is obtained.
Specifically, step 2) in light diffusing agent, quantum dot concentrate added into corresponding photocuring glue, first stir again
Ultrasonic disperse, obtains the quantum dot light solidified glue material.
Specifically, step 4) in use but be not limited to roll-in method the second basement membrane is placed on the quantum dot layer, the amount
The thickness of son point layer is adjusted by the gap between pressure roller and bottom roller.
Specifically, step 5) in solidify the quantum dot layer using UV light sources, solidification energy is 100~2000mJ/
cm2.Preferably, the UV light sources are LED UV light sources, and the solidification energy is 200~2000mJ/cm2。
Compared with prior art, the beneficial effects of the invention are as follows：
1) CdS quantum dots are first dispersed in the acrylic ester monomer of photocuring glue, then mixed with photocuring glue
Close, can avoid CdS quantum dots directly and air contact, while ensureing that CdS quantum dots contain admittedly in a hundred per cent
Uniform and stable dispersion in the optic-solidified adhesive aqueous systems of amount, therefore the quantum luminous efficiency of the quantum dot film for obtaining is high.
2) quantum dot is scattered in photocuring glue, is solidified between the first basement membrane and the second basement membrane after ultraviolet lighting
Quantum dot layer, it is not necessary to heat cure, quantum dot will not be too high and impaired because of temperature, while operation is on the one hand reduced, production effect
Rate is improved, and on the other hand reduces equipment investment and energy resource consumption, production cost reduction.
Brief description of the drawings
The process chart for preparing quantum dot film that Fig. 1 is provided for the present invention.
Specific embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail, and example is served only for explaining
The present invention, is not intended to limit the scope of the present invention.
If material therefor or chemicals are not specifically noted and are commercial goods in following examples of the present invention, used
Method be conventional method unless otherwise noted.
The present invention provides a kind of quantum dot film, and it is made up of the first basement membrane, quantum dot layer and the second basement membrane, the quantum dot
Layer is sandwiched between first basement membrane and the second basement membrane and makes first basement membrane and the separation of the second basement membrane, the quantum dot layer bag
Glue containing photocuring, the CdS quantum dots and light diffusing agent that are scattered in the photocuring glue, the photocuring glue
By the acrylic ester monomer of 50~80wt%, the esters of acrylic acid performed polymer and 0.5~6wt% light triggers of 18~48wt%
Composition.
As shown in figure 1, the method for preparing above-mentioned quantum dot film includes following content：Quantum dot is scattered in into the light to consolidate
Quantum dot concentrate is formed in the acrylic ester monomer of tensol；Quantum dot concentrate, light diffusing agent are scattered in the light
Quantum dot photocuring glue material is formed in solidified glue；Quantum dot light solidified glue material is coated on first basement membrane
Form the quantum dot layer；Second basement membrane is placed on the quantum dot layer；Consolidate the quantum dot layer using UV illumination
Change, obtain final product the quantum dot film.
Further illustrated by lower part embodiment and comparative example a kind of quantum dot film disclosed in this invention and its
Some advantages of preparation method.
Embodiment 1 is matched somebody with somebody by 50g isobornyl acrylates, 36g aliphatic urethane acrylates, 3.2g light triggers 1173
Photocuring glue is made, its refractive index is 1.52, and viscosity is about 1000cPs.The quantum dot product containing quantum dot 0.08g is taken, will
Organic solvent rotary evaporation is removed, and adds 0.72g isobornyl acrylates, ultrasonic disperse after first stirring, and obtains quantum dot concentration
Liquid.By in quantum dot concentrate, the 10g light diffusing agents addition photocuring glue, ultrasonic disperse again is first stirred, obtain quantum dot light
Solidified glue material.Above-mentioned quantum dot light solidified glue material is coated quantum dot layer is formed on PET basement membranes, then using roll-in
Be placed in another PET basement membrane on the quantum layer by method, and being irradiated with LED UV light sources solidifies quantum dot layer, obtains final product the quantum
Point film, wherein the thickness of quantum dot layer is 40 μm after solidification.
Embodiment 2 is by 60g lauryl methacrylates, 26g aliphatic urethane acrylates, 3.2g light triggers 1173
Photocuring glue is prepared, its refractive index is 1.50, and viscosity is about 700cPs.The quantum dot product containing quantum dot 0.08g is taken, will be had
Machine solvent rotary evaporation is removed, and adds 0.72g lauryl methacrylates, ultrasonic disperse after first stirring, and obtains quantum dot concentration
Liquid.By in quantum dot concentrate, the 10g light diffusing agents addition photocuring glue, ultrasonic disperse again is first stirred, obtain quantum dot light
Solidified glue material.Above-mentioned quantum dot light solidified glue material is coated quantum dot layer is formed on PET basement membranes, then using roll-in
Be placed in another PET basement membrane on the quantum layer by method, and being irradiated with LED UV light sources solidifies quantum dot layer, obtains final product the quantum
Point film, wherein the thickness of quantum dot layer is 40 μm after solidification.
Embodiment 3 prepares photocuring by 60g isobornyl acrylates, 26g epoxy acrylates, 3.2g light triggers 184
Glue, its refractive index is 1.50, and viscosity is about 800cPs.The quantum dot product containing quantum dot 0.08g is taken, organic solvent is rotated
Evaporative removal, adds 0.72g isobornyl acrylates, ultrasonic disperse after first stirring, and obtains quantum dot concentrate.Quantum dot is dense
Contracting liquid, 10g light diffusing agents are added in the photocuring glue, first stir ultrasonic disperse again, obtain quantum dot light solidified glue material.
Above-mentioned quantum dot light solidified glue material is coated quantum dot layer is formed on PET basement membranes, then use roll-in method by another PET
Basement membrane is placed on the quantum layer, and being irradiated with LED UV light sources solidifies quantum dot layer, the quantum dot film is obtained final product, wherein solidifying
The thickness of quantum dot layer is 40 μm afterwards.
Embodiment 4 is by 55g propoxylations trimethylolpropane trimethacrylate, 36g modified epoxy acrylic esters, 3.6g light
Initiator 184 is configured to photocuring glue, and its refractive index is 1.55, and viscosity is about 1300cPs.Take the amount containing quantum dot 0.04g
Son point product, by the removal of organic solvent rotary evaporation, adds 0.36g propoxylation trimethylolpropane trimethacrylates, first
Ultrasonic disperse after stirring, obtains quantum dot concentrate.During quantum dot concentrate, 5g light diffusing agents added into the photocuring glue,
Ultrasonic disperse again is first stirred, quantum dot light solidified glue material is obtained.Above-mentioned quantum dot light solidified glue material is coated into PET bases
Quantum dot layer is formed on film, then another PET basement membrane is placed on the quantum layer using roll-in method, irradiated with LED UV light sources
Solidify quantum dot layer, obtain final product the quantum dot film, wherein the thickness of quantum dot layer is 100 μm after solidification.
Embodiment 5 is prepared light and is consolidated by 55g lauryl methacrylates, 36g epoxy acrylates, 3.6g light triggers 907
Tensol, its refractive index is 1.56, and viscosity is about 1400cPs.The quantum dot product containing quantum dot 0.04g is taken, by organic solvent
Rotary evaporation is removed, and adds 0.36g lauryl methacrylates, ultrasonic disperse after first stirring, and obtains quantum dot concentrate.Will amount
Son is ordered in concentrate, the 5g light diffusing agents addition photocuring glue, first stirs ultrasonic disperse again, obtains quantum dot light solidified glue
Material.Above-mentioned quantum dot light solidified glue material is coated quantum dot layer is formed on mist degree PET film, then will be another using roll-in method
One mist degree PET film is placed on the quantum layer, and being irradiated with LED UV light sources solidifies quantum dot layer, obtains final product the quantum dot
Film, wherein the thickness of quantum dot layer is 150 μm after solidification.
Embodiment 6 is by 65g neopentylglycol diacrylates, 26g aliphatic urethane acrylates, 3.6g light triggers
TPO prepares photocuring glue, and its refractive index is 1.48, and viscosity is about 400cPs.The quantum dot product containing quantum dot 0.04g is taken,
By the removal of organic solvent rotary evaporation, 0.36g neopentylglycol diacrylates are added, ultrasonic disperse after first stirring obtains quantum
Select concentrate.By in quantum dot concentrate, the 5g light diffusing agents addition photocuring glue, ultrasonic disperse, the amount of obtaining again are first stirred
Son point photocuring glue material.Above-mentioned quantum dot light solidified glue material is coated and form quantum dot layer on water oxygen Obstruct membrane,
Another water oxygen Obstruct membrane is placed on the quantum layer using roll-in method again, being irradiated with LED UV light sources consolidates quantum dot layer
Change, obtain final product the quantum dot film, wherein the thickness of quantum dot layer is 100 μm after solidification.
Comparative example 1
Method with embodiment 1 is substantially completely consistent, and difference is that the composition of the photocuring glue used is the propylene of 50g
The light trigger 1173 of sour isobornyl thiocyanoacetate, the aliphatic urethane acrylate of 65g and 3.2g, wherein aliphatic polyurethane propylene
Content of the acid esters in photocuring glue is 54.99wt%.
Comparative example 2
Method with embodiment 1 is substantially completely consistent, and difference is that the composition of the photocuring glue used is the propylene of 30g
The light trigger 1173 of sour isobornyl thiocyanoacetate, the aliphatic urethane acrylate of 36g and 3.2g, wherein isobornyl acrylate exists
Content in photocuring glue is 43.35wt%.
Comparative example 3
Method with embodiment 1 is substantially completely consistent, difference be the photocuring glue used composition for the Isosorbide-5-Nitrae of 50g-
The light trigger 1173 of butanediol diacrylate, the aliphatic urethane acrylate of 36g and 3.2g.
Quantum luminous efficiency and luminance test are carried out to the quantum dot film that embodiment 1 to 6 and comparative example 1 to 3 are obtained, is tested
Result is as shown in table 1.
Different brightness of the embodiment with quantum dot film in comparative example of table 1 and luminous efficiency
| Brightness (nit) | Luminous efficiency (%) | |
| Embodiment 1 | 301.07 | 93.22 |
| Embodiment 2 | 285.64 | 88.46 |
| Embodiment 3 | 286.61 | 88.76 |
| Embodiment 4 | 287.22 | 88.95 |
| Embodiment 5 | 280.73 | 86.94 |
| Embodiment 6 | 282.60 | 87.52 |
| Comparative example 1 | 255.32 | 79.07 |
| Comparative example 2 | 254.35 | 78.77 |
| Comparative example 3 | 243.98 | 75.56 |
By data above as can be seen that the quantum dot film that obtains of embodiment 1 to 6, its luminous efficiency reaches more than 85%, bright
Degree reaches more than 280nit；It is right and comparative example 1 and 2 exceeds the scope of application claims because of the component proportion of its photocuring glue
Ratio 3 exceeds the scope of application claims because of the monomer of its optic-solidified adhesive wet concentration, therefore causes the quantum dot film for finally giving
Luminosity and luminous efficiency are substantially reduced.A kind of quantum dot film and its preparation that the above results explanation is provided by the present invention
Method can obtain the preferable quantum dot film of luminous efficiency, while constituting photocuring glue in the technical scheme of present invention offer
Composition and its each component content should be specific, during beyond the particular range, the luminosity of the quantum dot film for finally giving and
Luminous efficiency is relatively poor, it is impossible to obtain the quantum dot film of high-quality.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of quantum dot film, it is characterised in that the quantum dot film is made up of the first basement membrane, quantum dot layer and the second basement membrane,
The quantum dot layer is sandwiched between first basement membrane and the second basement membrane and makes first basement membrane and the separation of the second basement membrane, described
Quantum dot layer includes photocuring glue, the CdS quantum dots and light diffusing agent that are scattered in the photocuring glue, described
Photocuring glue by the acrylic ester monomer of 50~80wt%, the esters of acrylic acid performed polymer of 18~48wt% and 0.5~
6wt% light triggers are constituted.
2. a kind of quantum dot film according to claim 1, it is characterised in that the thickness of the quantum dot layer is 10~250 μ
M, content of the CdS quantum dots in the quantum dot layer is 0.01~10wt%.
3. a kind of quantum dot film according to claim 1, it is characterised in that the light diffusing agent is that particle diameter is 0.5~20 μ
The silica of m, titanium dioxide or organic silicon particle, its content in the quantum dot layer are 0.1~20wt%.
4. a kind of quantum dot film according to claim 1, it is characterised in that the acrylic ester monomer includes ethylene glycol
Acrylate, methacrylic acid-beta-hydroxy ethyl ester, isobornyl acrylate, propoxylation trimethylolpropane trimethacrylate, first
Base lauryl acrylate, lauryl acrylate, isobornyl methacrylate, alkyl methacrylate, neopentyl glycol dipropyl
One or more in olefin(e) acid ester, ethylene glycol dimethacrylate；The esters of acrylic acid performed polymer includes epoxy acrylic
One or more in ester, aliphatic urethane acrylate, modified epoxy acrylic ester；The light trigger includes light-initiated
One or more in agent 1173,184,907, TPO.
5. a kind of quantum dot film according to any one of Claims 1-4, it is characterised in that the folding of the photocuring glue
It is 1.48~1.63 to penetrate rate scope, and range of viscosities is 50cPs~3000cPs；First basement membrane and the second basement membrane be PET film,
Any one in mist degree PET film and water oxygen Obstruct membrane.
6. the preparation method of a kind of quantum dot film as described in any one of claim 1 to 5, it is characterised in that including following step
Suddenly:
1) CdS quantum dots are scattered in the acrylic ester monomer of the photocuring glue and form quantum dot concentrate；
2) light diffusing agent, quantum dot concentrate are scattered in the photocuring glue and form quantum dot photocuring glue material；
3) quantum dot light solidified glue material is coated and form the quantum dot layer on first basement membrane；
4) second basement membrane is placed on the quantum dot layer；
5) solidify under UV illumination the quantum dot layer, obtain final product the quantum dot film.
7. a kind of preparation method of quantum dot film according to claim 6, it is characterised in that step 1) in will deposit quantum
The organic solvent rotary evaporation removal of point nano material, is subsequently adding the acrylic ester monomer in the photocuring glue, first
Stirring ultrasonic disperse again, obtains the quantum dot concentrate, wherein in quantum dot concentrate the content of CdS quantum dots be 5~
15wt%.
8. a kind of preparation method of quantum dot film according to claim 6, it is characterised in that step 2) in light is spread
Agent, quantum dot concentrate are added in corresponding photocuring glue, first stir ultrasonic disperse again, obtain the quantum dot light solidified glue
Material.
9. a kind of preparation method of quantum dot film according to claim 6, it is characterised in that step 3) in use roll-in method
Second basement membrane is placed on the quantum dot layer, the thickness of the quantum dot layer is adjusted by the gap between pressure roller and bottom roller
Section.
10. a kind of preparation method of quantum dot film according to claim 6, it is characterised in that step 4) in use LED
UV light sources solidify the quantum dot layer, and solidification energy is 100~2000mJ/cm2。
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| CN107353423A (en) * | 2017-08-30 | 2017-11-17 | 力王新材料（惠州）有限公司 | A kind of quantum dot film material and preparation method thereof |
| CN108384462A (en) * | 2018-02-06 | 2018-08-10 | 苏州星烁纳米科技有限公司 | Glue, quantum dot glue and light conversion element |
| CN108873472A (en) * | 2018-06-28 | 2018-11-23 | 北京中科纳通电子技术有限公司 | Quantum dot film and the liquid crystal display for installing it |
| CN108957847A (en) * | 2018-06-28 | 2018-12-07 | 北京中科纳通电子技术有限公司 | High water oxygen rejection rate quantum dot film and the liquid crystal display for installing it |
| CN108976901A (en) * | 2018-06-28 | 2018-12-11 | 北京中科纳通电子技术有限公司 | High water oxygen rejection rate quantum dot ink and preparation method thereof |
| CN109021669A (en) * | 2018-06-28 | 2018-12-18 | 北京中科纳通电子技术有限公司 | The preparation method and its usage of high water oxygen rejection rate quantum dot film |
| CN109096823A (en) * | 2018-06-28 | 2018-12-28 | 北京中科纳通电子技术有限公司 | The preparation method of quantum dot film and its application in a liquid crystal display |
| CN109135628A (en) * | 2018-06-08 | 2019-01-04 | 宁波激智科技股份有限公司 | A kind of quantum dot glue composition and a kind of quantum dot film |
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| CN109337604A (en) * | 2018-09-18 | 2019-02-15 | 武汉保丽量彩科技有限公司 | It is used to prepare quantum dot glue, quantum dot film of quantum dot film and preparation method thereof and high photosynthetic efficiency quantum dot film and preparation method thereof |
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| CN110591608A (en) * | 2019-09-26 | 2019-12-20 | 厦门玻彩新材料有限公司 | Thermosetting quantum dot glue, quantum dot film and preparation method thereof |
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