CN106544042A - A kind of preparation method of electrochromism liquid crystal film - Google Patents
A kind of preparation method of electrochromism liquid crystal film Download PDFInfo
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- CN106544042A CN106544042A CN201610889898.1A CN201610889898A CN106544042A CN 106544042 A CN106544042 A CN 106544042A CN 201610889898 A CN201610889898 A CN 201610889898A CN 106544042 A CN106544042 A CN 106544042A
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- C09K9/00—Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy
- C09K9/02—Organic tenebrescent materials
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Abstract
A kind of preparation method of electrochromism liquid-crystal film material, including by the 1% 10% purpurine class liquid-crystal compoundss with electrochromic property, 40% 80% nematic liquid crystal, 5% 30% ultraviolet polymerisable monomer, 0.1% 10% spacer particle, 0.1% 10% light trigger is mixed, obtain light lead mixture, it is subsequently poured between the mylar that two-layer scribbles conductive layer, extruded with roll shaft, it is polymerized under ultraviolet light irradiation afterwards, obtain flexible electrochromic liquid-crystal film material, the present invention have can large area production, process is simple, it is stable, it is flexible, advantage with low cost.
Description
Technical field
The invention belongs to liquid crystal applications technical field, and in particular to a kind of preparation method of electrochromism liquid crystal film.
Background technology
Electrochromism refers to optical properties such as reflectance, transmitance, absorbance etc. of material in the presence of extra electric field
There is the phenomenon of stable, reversible color change, show as the reversible change of color and transparency in appearance.With electroluminescent change
The material of color performance is referred to as electrochromic material, is referred to as electrochromic device with the device that electrochromic material is made.
Electrochromic material is divided into inorganic electrochromic material and organic electrochromic material.Inorganic electrochromic material
Typical Representative is Tungstic anhydride., at present, the industrialization of the electrochromic device with Tungstic anhydride. as functional material.And Organic Electricity
Off-color material is caused mainly to have polythiophene class and its derivant, purpurine class, tetrathiafulvalene, metallo phthalocyanine etc..With purple
Smart class has obtained practical application for the electrochromic material of functional material.
Although the species of electrochomeric films material has had a lot, it is poor to there is film property, and large area production is difficult,
It is not flexible, it is relatively costly, stability difference the shortcomings of.
The content of the invention
In order to solve above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of electrochromism liquid crystal film
Purpurine class electrochromism liquid crystal material containing liquid crystal liquid crystal property and nematic liquid crystal are carried out mixture, add and have by preparation method
Liquid crystal liquid crystal property carry out between the mylar of conductive layer ultraviolet polymerization scribbling, prepares stable electrochromism in outer polymerisable monomer
Liquid-crystal film material.
In order to achieve the above object, the technical scheme of present invention offer is：
A kind of preparation method of electrochromism liquid crystal film, comprises the following steps that：
Step one：According to mass fraction (1%-10%)：(40%-80%)：(5%-30%)：(0.1%-10%)：
(0.1%-10%) Viologen Compounds, nematic liquid crystal, ultraviolet polymerisable monomer, spacer particle and light-initiated are weighed respectively
Agent；
Step 2：Viologen Compounds in step one, nematic liquid crystal, ultraviolet polymerisable monomer and interval grain are mixed
Close, after stirring, obtain mixture；
Step 3：Light trigger in mixture in step 2 in addition step one, after stirring, obtains light lead
Mixture；
Step 4：The light lead mixture obtained in step 3 is poured into and is scribbled between the mylar of conductive layer, using roller
After axle extruding, it is 0.5-25mw/cm in light intensity2Ultraviolet light under carry out irradiation polymerization 5-30 minutes, obtain flexibility can be electroluminescent
The liquid-crystal film material of discoloration.
Described Viologen Compounds are the electrochromism purpurine material with liquid crystal liquid crystal property, its structure
It is that formula is:
Described nematic liquid crystal be SLC1717, SLC7011, E7, E8, the one kind in SLC09535.
Described ultraviolet polymerisable monomer is the polymerisable monomer with liquid crystal liquid crystal property, and its structural formula is
A diameter of 10-40 microns of described spacer particle.
Described light trigger is benzoin dimethylether, 4- methyl benzophenones, 2,4- diethyl thioxanthones, 1- hydroxyls
One kind in base-cyclohexyl-phenyl ketone, 2- hydroxy-2-methyl -1- phenylacetones.
Beneficial effects of the present invention：
1st, by Viologen Compounds and nematic liquid crystal phase mixture, by increasing capacitance it is possible to increase the mutual compatibility so that prepared
Thin film is uniform and stable.
2nd, the electrochromism liquid crystal material viscosity of institute's mixture is relatively low, is easily worked, and can be formed under ultraviolet light
Even thin film, good film-forming property；The substrate for being adopted is compliant conductive mylar, with good flexibility, prepared electricity
Mutagens color thin-film device has flexible advantage.
Specific embodiment
Embodiment 1
A kind of preparation method of electrochromism liquid crystal film, comprises the following steps that：
Step one：According to mass fraction 3%：80%：15%：1.5%：0.5% weighs Viologen Compounds, nematic respectively
Phase liquid crystal, ultraviolet polymerisable monomer, spacer particle and light trigger；
Step 2：Viologen Compounds in step one, nematic liquid crystal, ultraviolet polymerisable monomer and interval grain are mixed
Close, after stirring, obtain mixture；
Step 3：Light trigger in mixture in step 2 in addition step one, after stirring, obtains light lead
Mixture；
Step 4：The light lead mixture obtained in step 3 is poured into and is scribbled between the mylar of conductive layer, using roller
After axle extruding, it is 3mw/cm in light intensity2Ultraviolet light under carry out irradiation polymerization 15 minutes, obtain flexibility can electrochromic liquid
Crystal film material.
Embodiment 2
A kind of preparation method of electrochromism liquid crystal film, comprises the following steps that：
Step one：According to mass fraction 4%：79%：15%：1%：1% weighs Viologen Compounds, nematic phase liquid respectively
Brilliant, ultraviolet polymerisable monomer, spacer particle and light trigger；
Step 2：Viologen Compounds in step one, nematic liquid crystal, ultraviolet polymerisable monomer and interval grain are mixed
Close, after stirring, obtain mixture；
Step 3：Light trigger in mixture in step 2 in addition step one, after stirring, obtains light lead
Mixture；
Step 4：The light lead mixture obtained in step 3 is poured into and is scribbled between the mylar of conductive layer, using roller
After axle extruding, it is 1.5mw/cm in light intensity2Ultraviolet light under carry out irradiation polymerization 20 minutes, obtain flexibility can be electrochromic
Liquid-crystal film material.
Embodiment 3
A kind of preparation method of electrochromism liquid crystal film, comprises the following steps that：
Step one：According to mass fraction 8%：75%：10%：5%：2% weighs Viologen Compounds, nematic phase liquid respectively
Brilliant, ultraviolet polymerisable monomer, spacer particle and light trigger；
Step 2：Viologen Compounds in step one, nematic liquid crystal, ultraviolet polymerisable monomer and interval grain are mixed
Close, after stirring, obtain mixture；
Step 3：Light trigger in mixture in step 2 in addition step one, after stirring, obtains light lead
Mixture；
Step 4：The light lead mixture obtained in step 3 is poured into and is scribbled between the mylar of conductive layer, using roller
After axle extruding, it is 5mw/cm in light intensity2Ultraviolet light under carry out irradiation polymerization 10 minutes, obtain flexibility can electrochromic liquid
Crystal film material.
Embodiment 4
A kind of preparation method of electrochromism liquid crystal film, comprises the following steps that：
Step one：According to mass fraction 9%：61%：22%：4%：4% weighs Viologen Compounds, nematic phase liquid respectively
Brilliant, ultraviolet polymerisable monomer, spacer particle and light trigger；
Step 2：Viologen Compounds in step one, nematic liquid crystal, ultraviolet polymerisable monomer and interval grain are mixed
Close, after stirring, obtain mixture；
Step 3：Light trigger in mixture in step 2 in addition step one, after stirring, obtains light lead
Mixture；
Step 4：The light lead mixture obtained in step 3 is poured into and is scribbled between the mylar of conductive layer, using roller
After axle extruding, it is 10mw/cm in light intensity2Ultraviolet light under carry out irradiation polymerization 15 minutes, obtain flexibility can be electrochromic
Liquid-crystal film material.
Embodiment 5
A kind of preparation method of electrochromism liquid crystal film, comprises the following steps that：
Step one：According to mass fraction 10%：55%：22%：5%：8% weighs Viologen Compounds, nematic phase respectively
Liquid crystal, ultraviolet polymerisable monomer, spacer particle and light trigger；
Step 2：Viologen Compounds in step one, nematic liquid crystal, ultraviolet polymerisable monomer and interval grain are mixed
Close, after stirring, obtain mixture；
Step 3：Light trigger in mixture in step 2 in addition step one, after stirring, obtains light lead
Mixture；
Step 4：The light lead mixture obtained in step 3 is poured into and is scribbled between the mylar of conductive layer, using roller
After axle extruding, it is 15mw/cm in light intensity2Ultraviolet light under carry out irradiation polymerization 20 minutes, obtain flexibility can be electrochromic
Liquid-crystal film material.
Embodiment 6
A kind of preparation method of electrochromism liquid crystal film, comprises the following steps that：
Step one：According to mass fraction 9.9%：72%：10%：0.1%：8% weighs Viologen Compounds, nematic respectively
Phase liquid crystal, ultraviolet polymerisable monomer, spacer particle and light trigger；
Step 2：Viologen Compounds in step one, nematic liquid crystal, ultraviolet polymerisable monomer and interval grain are mixed
Close, after stirring, obtain mixture；
Step 3：Light trigger in mixture in step 2 in addition step one, after stirring, obtains light lead
Mixture；
Step 4：The light lead mixture obtained in step 3 is poured into and is scribbled between the mylar of conductive layer, using roller
After axle extruding, it is 20mw/cm in light intensity2Ultraviolet light under carry out irradiation polymerization 25 minutes, obtain flexibility can be electrochromic
Liquid-crystal film material.
Embodiment 7
A kind of preparation method of electrochromism liquid crystal film, comprises the following steps that：
Step one：According to mass fraction 10%：65%：5%：10%：10% weighs Viologen Compounds, nematic phase respectively
Liquid crystal, ultraviolet polymerisable monomer, spacer particle and light trigger；
Step 2：Viologen Compounds in step one, nematic liquid crystal, ultraviolet polymerisable monomer and interval grain are mixed
Close, after stirring, obtain mixture；
Step 3：Light trigger in mixture in step 2 in addition step one, after stirring, obtains light lead
Mixture；
Step 4：The light lead mixture obtained in step 3 is poured into and is scribbled between the mylar of conductive layer, using roller
After axle extruding, it is 25mw/cm in light intensity2Ultraviolet light under carry out irradiation polymerization 30 minutes, obtain flexibility can be electrochromic
Liquid-crystal film material.
Claims (6)
1. a kind of preparation method of electrochromism liquid crystal film, it is characterised in that comprise the following steps that：
Step one：According to mass fraction (1%-10%)：(40%-80%)：(5%-30%)：(0.1%-10%)：(0.1%-
10%) Viologen Compounds, nematic liquid crystal, ultraviolet polymerisable monomer, spacer particle and light trigger are weighed respectively；
Step 2：By the Viologen Compounds in step one, nematic liquid crystal, ultraviolet polymerisable monomer and interval grain mixing, stir
After mixing uniformly, mixture is obtained；
Step 3：Light trigger in mixture in step 2 in addition step one, obtains light lead mixing after stirring
Thing；
Step 4：The light lead mixture obtained in step 3 is poured into and is scribbled between the mylar of conductive layer, squeezed using roll shaft
After pressure, it is 0.5-25mw/cm in light intensity2Ultraviolet light under carry out irradiation polymerization 5-30 minutes, obtain flexibility can electrochromism
Liquid-crystal film material.
2. a kind of preparation method of electrochromism liquid crystal film according to claim 1, it is characterised in that described purpurine
Class compound is the electrochromism purpurine material with liquid crystal liquid crystal property, and its structure is that formula is
3. the preparation method of a kind of electrochromism liquid crystal film according to claim 1, it is characterised in that described is ultraviolet
Polymerisable monomer is the polymerisable monomer with liquid crystal liquid crystal property, and its structure is：
4. a kind of preparation method of electrochromism liquid crystal film according to claim 1, it is characterised in that described interval
A diameter of 10-40 microns of particle.
5. a kind of preparation method of electrochromism liquid crystal film according to claim 1, it is characterised in that described nematic
Phase liquid crystal be SLC1717, SLC7011, E7, E8, the one kind in SLC09535.
6. the preparation method of a kind of electrochromism liquid crystal film according to claim 1, it is characterised in that described light draws
Send out agent be benzoin dimethylether, 4- methyl benzophenones, 2,4- diethyl thioxanthones, 1- hydroxy-cyclohexyl-phenyl ketones,
One kind in 2- hydroxy-2-methyl -1- phenylacetones.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167980A (en) * | 2017-05-03 | 2017-09-15 | 上海洞舟实业有限公司 | A kind of preparation of flexible electrochomeric films |
| CN111025810A (en) * | 2019-12-09 | 2020-04-17 | Oppo广东移动通信有限公司 | Electrochromic assembly, housing and electronic device |
| CN113064297A (en) * | 2021-03-23 | 2021-07-02 | 西京学院 | Polymer dispersed liquid crystal film capable of regulating color by voltage and preparation and application thereof |
| CN113103706A (en) * | 2021-03-26 | 2021-07-13 | 珠海光驭科技有限公司 | Electrochromic photonic crystal film and preparation method and application thereof |
| CN113867017A (en) * | 2020-06-12 | 2021-12-31 | 深圳市光羿科技有限公司 | Multifunctional light modulation device and laminated glass, hollow glass and attached film thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167980A (en) * | 2017-05-03 | 2017-09-15 | 上海洞舟实业有限公司 | A kind of preparation of flexible electrochomeric films |
| CN107167980B (en) * | 2017-05-03 | 2019-10-25 | 上海洞舟实业有限公司 | A kind of preparation of flexibility electrochomeric films |
| CN111025810A (en) * | 2019-12-09 | 2020-04-17 | Oppo广东移动通信有限公司 | Electrochromic assembly, housing and electronic device |
| CN111025810B (en) * | 2019-12-09 | 2022-09-02 | Oppo广东移动通信有限公司 | Electrochromic assembly, housing and electronic device |
| CN113867017A (en) * | 2020-06-12 | 2021-12-31 | 深圳市光羿科技有限公司 | Multifunctional light modulation device and laminated glass, hollow glass and attached film thereof |
| CN113867017B (en) * | 2020-06-12 | 2024-01-30 | 深圳市光羿科技有限公司 | Multifunctional light modulation device, laminated glass thereof, hollow glass and attached film |
| CN113064297A (en) * | 2021-03-23 | 2021-07-02 | 西京学院 | Polymer dispersed liquid crystal film capable of regulating color by voltage and preparation and application thereof |
| CN113064297B (en) * | 2021-03-23 | 2023-08-11 | 西京学院 | Polymer dispersed liquid crystal film capable of regulating color by voltage and preparation and application thereof |
| CN113103706A (en) * | 2021-03-26 | 2021-07-13 | 珠海光驭科技有限公司 | Electrochromic photonic crystal film and preparation method and application thereof |
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Application publication date: 20170329 |