CN102516498A - Preparation method of polymer mixed network-based polymer dispersed liquid crystal (PDLC) film material - Google Patents
Preparation method of polymer mixed network-based polymer dispersed liquid crystal (PDLC) film material Download PDFInfo
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Abstract
The invention belongs to the technical field of liquid crystal application and especially relates to a preparation method of a polymer mixed network-based polymer dispersed liquid crystal (PDLC) film material. The preparation method of the polymer mixed network-based PDLC film material is characterized in that one or more ultraviolet light polymerisable epoxy monomers, an ultraviolet light polymerisable acrylate (or methacrylate) monomer, nematic liquid crystals, a cationic photoinitiator, a free radical photoinitiator and glass beads are uniformly mixed according to a certain mass ratio; the mixture is coated between two transparent indium tin oxid (ITO) conductive plastic films and then is pressed into films having different thickness values; and the films are irradiated by ultraviolet lights having wavelength of 365nm to be cured into the polymer mixed network-based PDLC film material. The polymer mixed network-based PDLC film material obtained by the preparation method has the advantages belonging to an acrylate or methacrylate network-based PDLC film and an epoxy resin network-based PDLC film. The preparation method improves the cohesion between a polymer network and an ITO plastic film interface, and improves the stability of the polymer mixed network-based PDLC film material.
Description
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Technical field
The invention belongs to the liquid crystal applications technical field; Particularly provide a kind of uv-light polymerization induction phase based on polymer hybrid network PDLC (PDLC) thin-film material to separate the preparation method of (PIPS), the thin-film material of preparation can be widely used in the research of liquid-crystal display, intelligent glass and association area thereof.
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Background technology
Along with industrial expansion, the problem that energy shortage and atmospheric pollution have become us to have to face.Concentration of carbon dioxide rises rapidly in the atmosphere, causes Greenhouse effect, greenhouse effects of the earth, acid rain, smog or climate change etc.Though oil and coal have brought the prosperity of world economy, yet they are exhausted at last.In this case, the sustainable development of the energy reduces the consumption of natural resources as far as possible, reduces carbonic acid gas and other exhaust gas discharging, becomes the instant realistic problem that the universe faces.
Along with China's rapid development of economy, building energy consumption shared ratio fast rise in China's energy total flow.For this reason, country to have established to strengthen energy-conservation be the development strategy that the building energy conservation of " energy conservation priority, polynary, the environmental friendliness of structure " of core reduces discharging with improving efficiency of energy utilization.
PDLC (Polymer Dispersed Liquid Crystal; Hereinafter to be referred as PDLC) material can be used as intelligent glass; The intelligent glass here is not " the glass system technology " on the architecture, but a kind ofly can regulate the glass of optical transmittance automatically, thereby regulates the room temperature effectively; Reduce the load of air-conditioning, to reach protection environment and the purpose of saving the energy.This technology is shaped abroad, and is well used, but domestic also seldom application.
The PDLC film is that the liquid crystal droplet with birefringence is dispersed in the matrix material that forms in the successive polymeric matrix.When pdlc film not being applied electric field; The director stochastic distribution of liquid crystal droplet; Because the effective refractive index of light through liquid crystal droplet do not match with specific refractory power through polymeric matrix; Multiple reflection and refraction take place in light on the interface of liquid crystal and polymkeric substance, strong scatter incident light of PDLC film and the opaque attitude that is creamy white.When the PDLC film was applied enough strong electric field, the director of liquid crystal droplet was arranged along direction of an electric field, if the refractive index match of the ordinary refraction index of the liquid crystal of selecting for use and polymkeric substance, light directly sees through the PDLC film, and presents clear state.Since its unique photoelectric properties with do not need polaroid, do not need orientation process, make advantages such as simple, low cost of manufacture, so have a wide range of applications.At present, the PDLC thin-film material has obtained using widely aspect photoelectric device, such as: aspects such as automatically controlled intelligent glass, large area flexible demonstration, liquid crystal grating and diffraction optics.
Of paramount importance link is how to guarantee that the PDLC film has good electro-optical properties and satisfactory stability property in the PDLC film preparation.At present, the research of PDLC film mainly is conceived to reduce the driving voltage of PDLC film both at home and abroad, shortens the time of response of PDLC film, improve its contrast gradient and stability.The electro-optical properties and the polymer network structure of PDLC film are closely related, are therefore guaranteeing that the PDLC film has under the prerequisite of good performance, and monomeric selection of different photopolymerizables and mixed ratio seem particularly important.
In PDLC film preparation process, cohesive force undertighten between polymer network/liquid crystal composite material film and the two-layer ITO plastics film appears through regular meeting, thus the situation that causes the ITO plastics film to come off easily.These have brought very big difficulty all for large-scale PDLC film prodn, have not only reduced the performance of products quality, have also had a strong impact on the economic benefit of product.
Up to the present, preparation PDLC material mainly contains: epoxy resin thermopolymerization induced liquid crystalline phase partition method and ultraviolet light induced propenoate or methacrylic ester radical polymerization induced liquid crystalline phase partition method.Yet two kinds of above-mentioned methods still exist the problem that some need solution badly.
The present invention is based on propenoate (or methacrylic ester) and epoxy resin polymer hybrid network prepares the PDLC film.The polymer hybrid network is to obtain through different polymerization mechanism polymerizations through two kinds of dissimilar polymerisable monomers (like propenoate (or methacrylic ester) and epoxy monomer), so it has combined the advantage of two kinds of networks.A kind of simple method for preparing hybrid network is the ultraviolet light induced polymerization of propenoate (or methacrylic ester) and epoxy monomer mixture; Wherein propenoate (or methacrylic ester) is through photic radical polymerization mechanism polymerization, and epoxy monomer is through the polymerization of photo-induced cationic polymerization mechanism.As everyone knows; Propenoate (or methacrylic ester) monomer has high reaction activity and high; Epoxy monomer is lower than propenoate (or methacrylic ester) monomer reaction activity, but the epoxy monomer converging network has less shrinkability, favorable mechanical performance and adhesive property.Therefore the PDLC film based on the polymer hybrid network can improve the cohesive strength of photopolymerizable monomer and the cohesive force at polymer network and ITO plastics film interface effectively, for bonding force and the high performance PDLC film of preparation that improves the PDLC film provides a reliable approach.
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Summary of the invention
The method that the purpose of this invention is to provide a kind of PDLC of preparation thin-film material, it utilizes the ultraviolet light induced polymerisation induced mesomorphic phase of propenoate (or methacrylic ester) and epoxy monomer to separate, and preparation is based on the PDLC film of polymer hybrid network.The PDLC film is had based on the PDLC film of propenoate or methacrylic ester network with based on the advantage of the PDLC film of epoxy networks simultaneously; Under the prerequisite of the electro-optical properties that guarantees the PDLC thin-film material, improve polymer network and the cohesive force at ITO plastics film interface and the stability of PDLC thin-film material.
Key of the present invention is to guarantee that the PDLC film has under the prerequisite of premium properties; The type of the UV-light polymerisable monomer of confirming to select for use; And the proportioning of control UV-light polymerisable monomer, dissimilar UV-light polymerisable monomers will have suitable consistency, can not be separated before and after the polymerization.
Technical scheme of the present invention is:
A kind of preparation method based on polymer hybrid network polymer dispersion liquid crystal material; It is characterized in that; UV-light polymerizable epoxy monomer and UV-light polymerizable acrylic ester or mixed with methacrylate monomers is even; As UV-light polymerisable monomer system, and with the nematic liquid crystal of itself and its refractive index match by mixing between mass ratio 3:2～3:7, mix after adding light trigger that accounts for total mass 2.0～10.0wt% and the glass microballon that accounts for total mass 1.0～10.0wt%; Be coated between the two-layer transparent indium tin oxide ITO conductive plastic film; Be squeezed into film with roller, use wavelength film to be carried out irradiation, solidify to form polymer dispersion liquid crystal material as the UV-light of 365nm.
Further: said film 20～60 ℃ of temperature, was carried out irradiation 10～30 minutes to film, solidify to form polymer dispersion liquid crystal material.
Further: said UV-light polymerizable epoxy monomer is one or more mixing that contain Racemic glycidol class epoxy, and the quantity of its active function groups is 1～4.
Further: the quantity of said UV-light polymerizable acrylic ester or methacrylate monomers active function groups is 1～4.
Further: the diameter of said glass microballon is 5～20 μ m.
Further: said light trigger is the mixed light initiator after ultraviolet light induced cationic initiator and UV-light radical initiator mix.
Further: said ultraviolet light induced cationic initiator is diaryl group iodized salt, triaryl sulfonium salts or iron arene salt, and the UV-light radical initiator is benzoin dimethylether or Three methyl Benzene formyl diphenyl phosphine oxide.
The invention has the advantages that: utilize UV-light polymerizable epoxy monomer and propenoate (or methacrylic ester) monomer to form polymer hybrid network matrix.The volumetric shrinkage of UV-light polymerizable epoxy monomer photocuring can be ignored; During epoxide group generation cationic photopolymerization, the epoxide group that had ring strain originally is opened, and forms the ether chain of no tension structure; Volumetric shrinkage is very little; Even be zero, and epoxy monomer adhesive property and resistance to chemical corrosion are good, so the volumetric shrinkage can overcome propenoate or methacrylate monomers photocuring the time.And the monomeric laser curing velocity of propenoate (or methacrylic ester) is fast, the suitably monomeric curing of accelerating ultraviolet polymerizable epoxy.So this method can improve the cohesive strength of photopolymerizable monomer and the cohesive force at macromolecule network and ITO plastics film interface effectively guaranteeing that the PDLC film has under the prerequisite of premium properties, increases the thermostability of PDLC film.In addition, through changing polymerizing condition (as: temperature, ultraviolet light intensity, polymerization time and initiator content etc.), can control the polymer network of pdlc film, and then improve the photoelectric properties of pdlc film.
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Description of drawings
Fig. 1 is the molecular formula of UV-light polymerisable monomer used among the embodiment.
Fig. 2 is the voltage-transmittance curve of the polymer dispersed liquid-crystal film material of embodiment 1 preparation.
Fig. 3 is the ESEM picture of macromolecule network of the polymer dispersed liquid-crystal film material of embodiment 1 preparation.
Fig. 4 is the voltage-transmittance curve of the polymer dispersed liquid-crystal film material of embodiment 2 preparations.
Fig. 5 is the ESEM picture of macromolecule network of the polymer dispersed liquid-crystal film material of embodiment 2 preparation.
Fig. 6 is the voltage-transmittance curve of the polymer dispersed liquid-crystal film material of embodiment 3 preparations.
Fig. 7 is the ESEM picture of macromolecule network of the polymer dispersed liquid-crystal film material of embodiment 3 preparation.
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Embodiment
Embodiment 1
The UV-light polymerizable epoxy monomer of being selected for use is polyethyleneglycol diglycidylether (EGDE ,=3 and 10), and the monomer of two kinds of different chain length is mixed by mass ratio 10:1, forms UV-light cationoid polymerisation monomer system; UV-light polymerizable acrylic ester (or methacrylic ester) monomer of being selected for use is methacrylic dodecyl gallate (LMA) and 1; 4-butylene glycol diacrylate (BDDA); Two kinds of monomers are mixed by mass ratio 4:1, form UV-light free yl polymerizating monomer system.Above-mentioned UV-light polymerizable positively charged ion and free yl polymerizating monomer system are mixed by mass ratio 6:1, and with this mixed system as the uv photopolymerization monomer.The nematic liquid crystal that the present invention selected for use is SLC1717 (T
NI=365.2K, n
o=1.519, n
e=1.720), and the mass ratio 3:2 of above-mentioned mixing uv photopolymerization monomer system and liquid crystal mixed, at room temperature (20 ℃) form isotropic liquid.Adding cation light initiator (UVI-6976) mixes by quality 4:1 with free radical photo-initiation (TPO); Its mixed light initiator is the 5.0wt% of total mass; The glass microballon that adds 20 μ m, the thickness of control pdlc film, the content of glass microballon is the 0.5wt% of mixed system total mass.After liquid crystal, UV-light polymerisable monomer, light trigger and glass microballon mixed, be coated in the middle of two plastics films that are coated with tin indium oxide (ITO) nesa coating, with the even film that forms of roll-in.Is that the UV-light of 365nm carry out irradiation by wavelength with this film under 35 ℃, and light application time is 10.0 minutes, sample is cooled to room temperature in air after, promptly obtains the PDLC film of embodiment 1.
Experimental result shows: the PDLC film driving voltage of preparation is lower, contrast gradient is big, the cohesive force between better heat stability and the two-layer ITO plastics film is very strong.
Use the liquid crystal comprehensive parameter tester to test the electro-optical properties curve of the PDLC film of above-mentioned preparation.The macromolecule network of PDLC film uses ESEM (SEM) to observe.
Embodiment 2
The UV-light polymerizable epoxy monomer of being selected for use is polyethyleneglycol diglycidylether (EGDE ,=3 and 10), and the monomer of two kinds of different chain length is mixed by mass ratio 10:1, forms UV-light cationoid polymerisation monomer system.The nematic liquid crystal that the present invention selected for use is SLC1717 (T
NI=365.2K, n
o=1.519, n
e=1.720), and the mass ratio 3:2 of above-mentioned UV-light cationoid polymerisation monomer system and liquid crystal mixed, at room temperature (20 ℃) form isotropic liquid.Adding cation light initiator (UVI-6976) is the 5.0wt% of total mass, adds the glass microballon of 20 μ m, the thickness of control pdlc film, and the content of glass microballon is the 0.5wt% of mixed system total mass.After liquid crystal, UV-light cationoid polymerisation monomer, light trigger and glass microballon mixed, be coated in the middle of two plastics films that are coated with tin indium oxide (ITO) nesa coating, with the even film that forms of roll-in.Is that the UV-light of 365nm carry out irradiation by wavelength with this film under 35 ℃, and light application time is 10.0 minutes, sample is cooled to room temperature in air after, promptly obtains the PDLC film of embodiment 2.
Experimental result shows: the PDLC film by embodiment 2 preparations improves with respect to embodiment 1 driving voltage and the contrast gradient reduction, but the cohesive force between better equally, the two-layer ITO plastics film of its thermostability is also stronger.
Embodiment 3
UV-light polymerizable acrylic ester (or methacrylic ester) monomer of being selected for use is methacrylic dodecyl gallate (LMA) and 1; 4-butylene glycol diacrylate (BDDA); Two kinds of monomers are mixed by mass ratio 4:1, form UV-light free yl polymerizating monomer system.The nematic liquid crystal that the present invention selected for use is SLC1717 (T
NI=365.2K, n
o=1.519, n
e=1.720), and the mass ratio 3:2 of above-mentioned UV-light free yl polymerizating monomer system and liquid crystal mixed, at room temperature (20 ℃) form isotropic liquid.The 5.0wt% that adds free radical photo-initiation (TPO) total mass adds the glass microballon of 20 μ m, the thickness of control pdlc film, and the content of glass microballon is the 0.5wt% of mixed system total mass.After liquid crystal, UV-light free yl polymerizating monomer, light trigger and glass microballon mixed, be coated in the middle of two plastics films that are coated with tin indium oxide (ITO) nesa coating, with the even film that forms of roll-in.Is that the UV-light of 365nm carry out irradiation by wavelength with this film under 0 ℃, and light application time is 10.0 minutes, sample is cooled to room temperature in air after, promptly obtains the PDLC film of embodiment 3.
Experimental result shows: relative embodiment 1 contrast gradient of PDLC film by embodiment 3 preparations improves, the time of response is faster arranged, but its driving voltage is wanted height relatively, and the cohesive force between the two-layer ITO plastics film of macromolecule membrane is relatively poor, tears easily.
Claims (7)
1. preparation method based on polymer hybrid network polymer dispersion liquid crystal material; It is characterized in that; UV-light polymerizable epoxy monomer and UV-light polymerizable acrylic ester or mixed with methacrylate monomers is even; As UV-light polymerisable monomer system, and with the nematic liquid crystal of itself and its refractive index match by mixing between mass ratio 3:2～3:7, mix after adding light trigger that accounts for total mass 2.0～10.0wt% and the glass microballon that accounts for total mass 1.0～10.0wt%; Be coated between the two-layer transparent indium tin oxide ITO conductive plastic film; Be squeezed into film with roller, use wavelength film to be carried out irradiation, solidify to form polymer dispersion liquid crystal material as the UV-light of 365nm.
2. method according to claim 1 is characterized in that: said film 20～60 ℃ of temperature, was carried out irradiation 10～30 minutes to film, solidify to form polymer dispersion liquid crystal material.
3. method according to claim 1 is characterized in that: said UV-light polymerizable epoxy monomer is one or more mixing that contain Racemic glycidol class epoxy, and the quantity of its active function groups is 1～4.
4. method according to claim 1 is characterized in that: the quantity of said UV-light polymerizable acrylic ester or methacrylate monomers active function groups is 1～4.
5. method according to claim 1 is characterized in that: the diameter of said glass microballon is 5～20 μ m.
6. method according to claim 1 is characterized in that: said light trigger is the mixed light initiator after ultraviolet light induced cationic initiator and UV-light radical initiator mix.
7. method according to claim 6 is characterized in that: said ultraviolet light induced cationic initiator is diaryl group iodized salt, triaryl sulfonium salts or iron arene salt, and the UV-light radical initiator is benzoin dimethylether or Three methyl Benzene formyl diphenyl phosphine oxide.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901047A (en) * | 2012-10-13 | 2013-01-30 | 江苏和成显示科技股份有限公司 | Photodiffusion film, backlight module and liquid crystal display with photodiffusion film |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225308A (en) * | 2007-09-17 | 2008-07-23 | 北京科技大学 | Method for preparing polymer dispersion liquid crystal material by ultraviolet-heating step-polymerization process |
| CN102071031A (en) * | 2010-12-24 | 2011-05-25 | 北京科技大学 | Method for preparing epoxy-based polymer dispersed liquid crystal film material |
| CN102220139A (en) * | 2011-04-21 | 2011-10-19 | 北京科技大学 | Method for preparing PDLC (Polymer Dispersed Liquid Crystal) by epoxy resin ultraviolet photoinduced cationic polymerization |
-
2011
- 2011-12-06 CN CN2011104019573A patent/CN102516498A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225308A (en) * | 2007-09-17 | 2008-07-23 | 北京科技大学 | Method for preparing polymer dispersion liquid crystal material by ultraviolet-heating step-polymerization process |
| CN102071031A (en) * | 2010-12-24 | 2011-05-25 | 北京科技大学 | Method for preparing epoxy-based polymer dispersed liquid crystal film material |
| CN102220139A (en) * | 2011-04-21 | 2011-10-19 | 北京科技大学 | Method for preparing PDLC (Polymer Dispersed Liquid Crystal) by epoxy resin ultraviolet photoinduced cationic polymerization |
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| CN102901047A (en) * | 2012-10-13 | 2013-01-30 | 江苏和成显示科技股份有限公司 | Photodiffusion film, backlight module and liquid crystal display with photodiffusion film |
| CN102901047B (en) * | 2012-10-13 | 2014-11-05 | 江苏和成显示科技股份有限公司 | Photodiffusion film, backlight module and liquid crystal display with photodiffusion film |
| CN104834144A (en) * | 2015-05-12 | 2015-08-12 | 北京科技大学 | Method for preparing wide-wave reflecting film by utilizing ultraviolet polymerization synergistic effect and application of wide-wave reflecting film |
| CN104834144B (en) * | 2015-05-12 | 2018-01-02 | 北京科技大学 | Method and the application of wide wave reflective film are prepared using ultraviolet polymerization synergy |
| US20160370615A1 (en) * | 2015-06-16 | 2016-12-22 | Boe Technology Group Co., Ltd. | Liquid crystal grating, method of manufacturing the same and display apparatus |
| US10001666B2 (en) * | 2015-06-16 | 2018-06-19 | Boe Technology Group Co., Ltd. | Liquid crystal grating, method of manufacturing the same and display apparatus |
| CN104880868A (en) * | 2015-06-16 | 2015-09-02 | 京东方科技集团股份有限公司 | Liquid crystal grating and manufacturing method thereof as well as display device |
| CN104880868B (en) * | 2015-06-16 | 2017-12-29 | 京东方科技集团股份有限公司 | A kind of liquid crystal grating and preparation method thereof and display device |
| CN106918939A (en) * | 2015-12-26 | 2017-07-04 | 北京众智同辉科技股份有限公司 | Polymer dispersed liquid crystal films and its manufacture method |
| CN107589580A (en) * | 2016-07-07 | 2018-01-16 | 北京大学 | A kind of method that intelligent dimming glass is prepared based on Graphene glass |
| CN107641516A (en) * | 2016-07-21 | 2018-01-30 | 京东方科技集团股份有限公司 | A kind of liquid-crystal composition, polymer dispersed liquid crystal film and preparation method thereof, flexible display apparatus and intelligent glass |
| CN106749867A (en) * | 2016-12-05 | 2017-05-31 | 北京大学 | A kind of preparation method of the optical diffusion based on PDLC system |
| CN109280556A (en) * | 2018-10-26 | 2019-01-29 | 北京大学 | A method of polymer dispersed liquid-crystal film is prepared based on epoxy substep heat cure |
| CN109280556B (en) * | 2018-10-26 | 2020-07-17 | 北京大学 | Method for preparing polymer dispersed liquid crystal film based on epoxy step-by-step thermosetting |
| CN110955069A (en) * | 2019-03-19 | 2020-04-03 | 深圳普特爱斯科技有限公司 | Multi-view display peep-proof film and preparation method thereof |
| CN110955069B (en) * | 2019-03-19 | 2024-03-22 | 深圳菲尔泰光电有限公司 | Multi-view display peep-proof film and preparation method thereof |
| CN114656855A (en) * | 2022-03-15 | 2022-06-24 | 北京科技大学 | Preparation method and application of wide-wave-reflection flexible thin film material |
| CN115141636A (en) * | 2022-07-26 | 2022-10-04 | 南昌虚拟现实研究院股份有限公司 | Polymer dispersed liquid crystal holographic body grating and preparation method thereof |
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Application publication date: 20120627 |