WO2019127639A1 - Self-adhesive electro-optical film and preparation method therefor - Google Patents

Self-adhesive electro-optical film and preparation method therefor Download PDF

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Publication number
WO2019127639A1
WO2019127639A1 PCT/CN2018/071393 CN2018071393W WO2019127639A1 WO 2019127639 A1 WO2019127639 A1 WO 2019127639A1 CN 2018071393 W CN2018071393 W CN 2018071393W WO 2019127639 A1 WO2019127639 A1 WO 2019127639A1
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Prior art keywords
layer
electro
adhesive
self
transparent conductive
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PCT/CN2018/071393
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French (fr)
Chinese (zh)
Inventor
梁雁扬
江宗宪
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深圳市睿帘智造科技有限公司
佛山市南海区瑞联胶粘制品有限公司
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Publication of WO2019127639A1 publication Critical patent/WO2019127639A1/en

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    • 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
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
    • 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

Definitions

  • the invention relates to the technical field of processing and manufacturing of film products, in particular to a self-adhesive electro-optic film and a preparation method thereof.
  • Electro-optic film is a new type of electronic light control product. By the control of external electric field, the electro-optical film can be quickly changed between two states: colorless transparent and milky white opaque.
  • Electro-optical film is a very important building material in green building, but it has the functions of isolating solar radiant heat source and ultraviolet light. It can control the electric switch to control the light transmission amount according to individual needs. Therefore, in addition to providing sufficient light, it also has sun protection and heat insulation function. Effectively reduce the use of lighting and air conditioning, to achieve the purpose of energy saving and carbon reduction, and because it can replace curtains, it can effectively reduce dust mites and improve the quality of life; in addition, smart glass can also be used as indoor partition screen with display The function can even be used directly as a projection screen, which can beautify the environment and make the space unrestricted. It will be widely used in the windows and interior decoration of buildings.
  • Electro-optic film has been around for more than 20 years. Due to the exposure of outdoor electro-optical film to outdoor sunlight, many material problems have occurred. The resistance value of the conductive material in the electro-optic film rises, and the polymer dispersed liquid crystal in the middle layer of the electro-optic film passes through In the case of yellowing of materials during sunlight exposure, the application stability of electro-optical films in outdoor applications has not been improved. Therefore, it is imperative to develop a self-adhesive electro-optical film that can be applied outdoors.
  • the present invention is achieved by a self-adhesive electro-optic film comprising an electro-optic film body and a UV-resistant and transparent self-adhesive layer, wherein the electro-optic film body and the self-adhesive layer are arranged in a layer; the electro-optic film In the energized state, the body is in an opaque state, and the electro-optic film body is in a transparent state in a power-off state.
  • the electro-optic film body is laminated, and comprises an upper transparent conductive adhesive film layer, a polymerized and dispersed liquid crystal layer and a lower transparent conductive adhesive film layer, wherein the polymerized and dispersed liquid crystal is disposed on the upper transparent conductive adhesive Between the film layer and the lower transparent conductive film layer.
  • the upper transparent conductive adhesive film layer and the lower transparent conductive adhesive film layer each comprise a PET substrate and a conductive material layer coated on the PET substrate, and the PET substrate of the upper transparent conductive adhesive film layer
  • the PET substrate of the lower transparent conductive film layer is bonded to the upper and lower surfaces of the polymerized dispersion-dispersed liquid crystal, respectively.
  • the conductive material layer is indium tin oxide ITO or conductive polymer PEDOT or graphite thin.
  • the anti-UV-treated self-adhesive layer is in a stacked arrangement, including an acrylic adhesive layer, a PET layer and a silica gel layer, and the two sides of the PET layer are respectively coated with an acrylic adhesive layer and a silica gel layer;
  • the acrylic adhesive layer is bonded to the PET substrate of the upper transparent conductive adhesive film layer or the lower transparent conductive adhesive film layer.
  • the upper transparent conductive adhesive film layer has a thickness of less than 1 um, and the visible light wavelength band has a transmittance of 550 nm of 70% or more.
  • the surface resistivity of the upper transparent conductive adhesive film layer is.
  • the polymerized and dispersed liquid crystal has a thickness ranging from 10 um to 40 um, and an operating voltage range is between 20 VAC and 250 VAC; and the polymerized and dispersed liquid crystal is in an energized state, and the parallel light band is 550 nm.
  • the transmittance at 550 nm in the parallel light band is maintained at 10% or less.
  • the thickness of the PET layer ranges from 50 um to 100 um; the thickness of the acryl layer is between 20 um and 75 um, and the PET substrate of the acryl layer and the electro-optic film is hard-coated.
  • the adhesion of the layer ranges from 500 g/inch to 1500 g/inch; the thickness of the silica gel layer ranges from 20 um to 50 um, and the adhesion of the silica gel layer to the glass ranges from 5 g/inch to 15 g/inch. between.
  • the invention also provides a preparation method of the above self-adhesive electro-optic film, comprising the following steps:
  • the polymer-polymerized dispersion type liquid crystal is obtained by mixing a liquid crystal and a photo-curable resin;
  • the acrylic layer is coated on the PET substrate of the upper transparent conductive film layer or the lower transparent conductive film layer.
  • the self-adhesive electro-optic film provided above has the following beneficial effects:
  • Self-adhesive electro-optical film can be directly attached to the glass surface to realize dimming function, and it is easy to install. It can be installed on any glass surface. It can be used for a long time without being exposed to sunlight and stable. When the power is off, the electro-optic film is opaque. (similar to ordinary frosted glass), when energized, the electro-optic film body will quickly appear clear and transparent; the self-adhesive electro-optic film will pass the anti-UV treatment self-adhesive layer, which can be stable in the environment exposed to sunlight, and greatly improve self-adhesive electro-optic The field of application of membranes.
  • FIG. 1 is a schematic structural view of a self-adhesive electro-optic film according to an embodiment of the present invention
  • FIG. 2 is a schematic structural view of an electro-optic film body in a self-adhesive electro-optic film according to an embodiment of the present invention
  • FIG 3 is a schematic structural view of a self-adhesive layer in a self-adhesive electro-optic film according to an embodiment of the present invention.
  • UV-Vis UV-visible spectrometer
  • Spectrophotometer measures the spectral penetration map of the anti-UV self-adhesive layer
  • Fig. 5 is a graph showing daily observation and measurement results using a three-charging meter in an embodiment of the present invention.
  • 1-electro-optic film body 2-self-adhesive layer; 3-upper transparent conductive film layer; 4-polymerized dispersion type liquid crystal (PDLC); 5--transparent transparent conductive film layer; 6-acrylic adhesive Layer; 7-PET layer; 8-silicone layer.
  • PDLC polymerized dispersion type liquid crystal
  • the self-adhesive electro-optic film provided in this embodiment comprises an electro-optic film body 1 and a UV-resistant and transparent self-adhesive layer 2, wherein the electro-optic film body 1 and the self-adhesive layer 2 are arranged in a stack, and the electro-optic film body 1 is in the When the power is turned off, it is opaque, and the electro-optical film body 1 is in a transparent state when it is energized.
  • Self-adhesive electro-optic film can be directly attached to the glass surface to realize dimming function, and it is easy to install. It can be installed on any glass surface. It can be used for a long time without being exposed to sunlight and stable. When the power is off, the electro-optic film body 1 is opaque. State (similar to ordinary frosted glass), when energized, the electro-optic film body 1 will quickly appear clear and transparent; the self-adhesive electro-optic film will pass through the anti-UV treatment self-adhesive layer 2, which can be stable and not deteriorated in the environment of sunlight exposure, greatly improving Application field of self-adhesive electro-optical film.
  • the electro-optic film body 1 comprises an upper transparent conductive adhesive film layer 3, a polymerized dispersed liquid crystal 4 (PDLC) and a lower transparent conductive adhesive film layer 5; the polymerized polymer dispersed liquid crystal 4 is disposed on the upper transparent conductive adhesive film layer 3 and Between the transparent conductive adhesive film layers 5;
  • PDLC polymerized dispersed liquid crystal 4
  • the upper transparent conductive adhesive film layer 3 and the lower transparent conductive adhesive film layer 5 each comprise a PET substrate and a conductive material layer coated on the PET substrate, and the upper transparent conductive adhesive film layer 3 and the lower transparent conductive adhesive film layer 5 of PET
  • the base material is bonded to the upper and lower surfaces of the polymer-polymerized dispersion type liquid crystal 4, respectively.
  • the upper transparent conductive adhesive film layer 3 and the lower transparent conductive adhesive film layer 5 are fabricated as follows: a conductive material is coated on an optical PET substrate having a thickness ranging from 50 um to 188 um, and the conductive material may be indium tin oxide ITO or conductive. A material such as a polymer PEDOT or a graphite thinner; the thickness of the upper transparent conductive adhesive film layer 3 is less than 1 ⁇ m, the transmittance of the visible light band of 550 nm is 70% or more, and the surface impedance of the upper transparent conductive adhesive film layer 3 is obtained.
  • the polymer-polymerized dispersion type liquid crystal 4 is obtained by mixing a liquid crystal and a photo-curable resin, and the polymer-polymerized dispersion type liquid crystal 4 has a thickness ranging from 10 um to 40 um, and the polymer-polymerized dispersion type liquid crystal 4 is sandwiched between the upper transparent conductive film layer 3 and the lower layer. Between the transparent conductive film layer 5, the working voltage range is 20VAC-250VAC. When the power is on, the transmittance of the parallel light band of 550nm is maintained at 50% or more. When the power is not applied, the transmittance of the parallel light band of 550nm is kept below 10%.
  • the upper transparent conductive adhesive film layer 3 and the lower transparent conductive adhesive film layer 5 are used, so that the cost can be greatly reduced, and the surface impedance of the electro-optic film body 1 can be greatly reduced, thereby The overall surface impedance of the viscous electro-optic film is reduced, sensitivity is increased, and heat generation is reduced.
  • the anti-UV treatment self-adhesive layer 2 comprises an acrylic adhesive layer 6, a PET layer 7 and a silica gel layer 8.
  • the two sides of the PET layer 7 respectively correspond to the coating of the acrylic adhesive layer 6, the silicone layer 8, and the thickness range of the PET layer 7. It is 50um-100um; the acrylic layer 6 is coated on one side of the PET layer 7, and the thickness of the acrylic layer 6 is 20um-75um, and the acrylic substrate 6 and the PET substrate of the electro-optic film body 1 are hardened.
  • the adhesion of the coating ranges from 500g/inch -1500g/inch.
  • the silica gel layer 8 is coated on the other side of the PET layer 7.
  • the thickness of the silica gel layer 8 ranges from 20 um to 50 um, and is connected to the glass through the silica gel layer 8.
  • the adhesion of the silica gel layer 8 to the glass ranges from 5 g/inch. -15g/inch.
  • the UV-resistant self-adhesive layer 2 is UV-resistant in the acrylic adhesive layer 6, and the UV-resistant treatment is effective for resisting the light transmittance below 400 nm; the self-adhesive layer 2 is produced in a clean environment, visible light ( The average transmittance range from 400 nm to 700 nm is 85% to 92%, and the average transmittance of UV ( ⁇ 400 nm) is less than 1%.
  • the acrylic adhesive layer 6 is adhered to the PET substrate of the upper transparent conductive adhesive film layer 3 or the lower transparent conductive adhesive film layer 5; the production method of the roll-to-roll film can be used to cover the acrylic adhesive layer 6
  • the transparent conductive film layer 3 or the lower transparent conductive film layer 5 is on the PET substrate.
  • the embodiment further provides a method for preparing the self-adhesive electro-optic film described above, which comprises the following steps:
  • a polymer-polymerized dispersion type liquid crystal 4 is obtained by mixing a liquid crystal and a photo-curable resin;
  • the acrylic adhesive layer 6 is coated on the PET substrate of the upper transparent conductive adhesive film layer 3 or the lower transparent conductive adhesive film layer 5.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

The present invention relates to the technical field of thin-film product processing and manufacturing. Disclosed is a self-adhesive electro-optical film and a preparation method therefor. The self-adhesive electro-optical film comprises an electro-optical film body, and a UV processing-resistant and transparent self-adhesive layer, wherein the electro-optical film body and the self-adhesive layer are arranged in a stacked manner. The electro-optical film body is in a non-transparent state when powered on, and the electro-optical film is in a transparent state when powered off. The self-adhesive electro-optical film can be directly stuck onto a glass surface to realize a dimming function, is convenient to mount and can be mounted on any glass surface, and can also be exposed to the sun for a long time without deterioration, so as to be stably used. When powered off, the self-adhesive electro-optical film is in a non-transparent state, and when powered on, the self-adhesive electro-optical film will quickly appear clear and transparent. The self-adhesive electro-optical film can remain stable and un-deteriorated in an environment exposed to the sun by means of a UV processing-resistant self-adhesive layer, thereby greatly extending the application field of the electro-optical films.

Description

一种自粘式电光膜及其制备方法Self-adhesive electro-optic film and preparation method thereof 技术领域Technical field
本发明涉及薄膜产品加工制造的技术领域，尤其涉及一种自粘式电光膜及其制备方法。The invention relates to the technical field of processing and manufacturing of film products, in particular to a self-adhesive electro-optic film and a preparation method thereof.
背景技术Background technique
电光膜是一种新型的电子控光产品，通过外加电场的控制，便可实现电光膜在无色透明与乳白色不透明两种状态之间的快速变换。Electro-optic film is a new type of electronic light control product. By the control of external electric field, the electro-optical film can be quickly changed between two states: colorless transparent and milky white opaque.
电光膜为绿色建筑中相当重要的建材，但其具有隔离太阳辐射热源与紫外线等功能，可随个人需求控制电开关调控光线透光量，因此，除了提供充足光线，同时具有防晒隔热功能，有效降低照明与空调的使用，达到节能减碳的目的，也因其可取代窗帘，而能有效降低尘螨、提升健康生活质量；另外，智能型玻璃也可做为室内隔间隔屏，具有显示功能，甚至可直接当作投影布幕，既能美化环境又使空间无限制，将广泛应用在建筑大楼窗户与室内装潢。Electro-optical film is a very important building material in green building, but it has the functions of isolating solar radiant heat source and ultraviolet light. It can control the electric switch to control the light transmission amount according to individual needs. Therefore, in addition to providing sufficient light, it also has sun protection and heat insulation function. Effectively reduce the use of lighting and air conditioning, to achieve the purpose of energy saving and carbon reduction, and because it can replace curtains, it can effectively reduce dust mites and improve the quality of life; in addition, smart glass can also be used as indoor partition screen with display The function can even be used directly as a projection screen, which can beautify the environment and make the space unrestricted. It will be widely used in the windows and interior decoration of buildings.
电光膜已经问世二十多年了，由于前期电光膜对户外太阳光的曝晒，发生许多材料上的问题，电光膜中的导电材料电阻值上升，电光膜中间层的聚合物分散型液晶在经由阳光曝晒过程中发生材料黄变的情形，电光膜在室外的应用稳定性一直无法提升，因此，开发一种可应用在户外的自粘式电光膜是当务之急。Electro-optic film has been around for more than 20 years. Due to the exposure of outdoor electro-optical film to outdoor sunlight, many material problems have occurred. The resistance value of the conductive material in the electro-optic film rises, and the polymer dispersed liquid crystal in the middle layer of the electro-optic film passes through In the case of yellowing of materials during sunlight exposure, the application stability of electro-optical films in outdoor applications has not been improved. Therefore, it is imperative to develop a self-adhesive electro-optical film that can be applied outdoors.
技术问题technical problem
本发明的目的在于提供一种自粘式电光膜及其制备方法，以解决上述背景技术中提出的问题。It is an object of the present invention to provide a self-adhesive electro-optic film and a method of preparing the same to solve the problems set forth in the above background art.
技术解决方案Technical solution
本发明是这样实现的，一种自粘式电光膜，包括电光膜体和抗UV处理且透明状的自粘层，所述电光膜体与所述自粘层呈层叠布置；所述电光膜体在通电状态下，为不透明状态，所述电光膜体在断电状态下，为透明状态。The present invention is achieved by a self-adhesive electro-optic film comprising an electro-optic film body and a UV-resistant and transparent self-adhesive layer, wherein the electro-optic film body and the self-adhesive layer are arranged in a layer; the electro-optic film In the energized state, the body is in an opaque state, and the electro-optic film body is in a transparent state in a power-off state.
进一步的，所述电光膜体呈层叠状，包括上透明导电胶膜层、高分子聚合分散型液晶和下透明导电胶膜层，所述高分子聚合分散型液晶布置在所述上透明导电胶膜层和下透明导电胶膜层之间。Further, the electro-optic film body is laminated, and comprises an upper transparent conductive adhesive film layer, a polymerized and dispersed liquid crystal layer and a lower transparent conductive adhesive film layer, wherein the polymerized and dispersed liquid crystal is disposed on the upper transparent conductive adhesive Between the film layer and the lower transparent conductive film layer.
进一步的，所述上透明导电胶膜层和下透明导电胶膜层均包括PET基材和涂覆在所述PET基材上的导电材料层，所述上透明导电胶膜层的PET基材和下透明导电胶膜层的PET基材分别与所述高分子聚合分散型液晶的上下面贴合。Further, the upper transparent conductive adhesive film layer and the lower transparent conductive adhesive film layer each comprise a PET substrate and a conductive material layer coated on the PET substrate, and the PET substrate of the upper transparent conductive adhesive film layer The PET substrate of the lower transparent conductive film layer is bonded to the upper and lower surfaces of the polymerized dispersion-dispersed liquid crystal, respectively.
进一步的，所述导电材料层为氧化铟锡ITO或导电高分子PEDOT或石墨稀。Further, the conductive material layer is indium tin oxide ITO or conductive polymer PEDOT or graphite thin.
进一步的，所述的抗UV处理的自粘层呈层叠布置，包括压克力胶层、PET层和硅胶层，所述PET层的两面分别对应涂布压克力胶层及硅胶层；所述压克力胶层与上透明导电胶膜层或下透明导电胶膜层的PET基材贴合。Further, the anti-UV-treated self-adhesive layer is in a stacked arrangement, including an acrylic adhesive layer, a PET layer and a silica gel layer, and the two sides of the PET layer are respectively coated with an acrylic adhesive layer and a silica gel layer; The acrylic adhesive layer is bonded to the PET substrate of the upper transparent conductive adhesive film layer or the lower transparent conductive adhesive film layer.
进一步的，所述上透明导电胶膜层的厚度小于1um，可见光波段为550nm穿透率为70%以上，所述上透明导电胶膜层的表面阻抗为。Further, the upper transparent conductive adhesive film layer has a thickness of less than 1 um, and the visible light wavelength band has a transmittance of 550 nm of 70% or more. The surface resistivity of the upper transparent conductive adhesive film layer is.
进一步的，所述高分子聚合分散型液晶的厚度范围为10um-40um之间，工作电压范围在20VAC-250VAC之间；所述高分子聚合分散型液晶处于通电状态时，平行光波段550nm穿透度保持50%以上，所述高分子聚合分散型液晶处于不通电状态时，平行光波段550nm穿透度保持10%以下。Further, the polymerized and dispersed liquid crystal has a thickness ranging from 10 um to 40 um, and an operating voltage range is between 20 VAC and 250 VAC; and the polymerized and dispersed liquid crystal is in an energized state, and the parallel light band is 550 nm. When the polymerized dispersion-dispersed liquid crystal is in a non-energized state, the transmittance at 550 nm in the parallel light band is maintained at 10% or less.
进一步的，所述PET层的厚度范围为50um-100um之间；所述压克力胶层的厚度范围为20um-75um之间，所述压克力胶层与电光膜的PET基材硬化涂层的粘着力范围为500 g/inch -1500g/inch之间；所述硅胶层的厚度范围为20um-50um之间，所述硅胶层与玻璃的粘着力范围为5 g/inch -15g/inch之间。Further, the thickness of the PET layer ranges from 50 um to 100 um; the thickness of the acryl layer is between 20 um and 75 um, and the PET substrate of the acryl layer and the electro-optic film is hard-coated. The adhesion of the layer ranges from 500 g/inch to 1500 g/inch; the thickness of the silica gel layer ranges from 20 um to 50 um, and the adhesion of the silica gel layer to the glass ranges from 5 g/inch to 15 g/inch. between.
本发明还提供了一种上述的自粘式电光膜的制备方法，包括以下步骤：The invention also provides a preparation method of the above self-adhesive electro-optic film, comprising the following steps:
1）、制备上透明导电胶膜层和下透明导电胶膜层：在厚度范围为50um-188um之间的光学PET基材上涂覆导电材料，即得；1) preparing a transparent conductive adhesive film layer and a lower transparent conductive adhesive film layer: coating a conductive material on an optical PET substrate having a thickness ranging from 50 um to 188 um, that is, obtaining;
2）、制备高分子聚合分散型液晶：所述高分子聚合分散型液晶通过液晶与光固化树脂混和而成；2) preparing a polymer-polymerized dispersion type liquid crystal: the polymer-polymerized dispersion type liquid crystal is obtained by mixing a liquid crystal and a photo-curable resin;
3）、将所述压克力胶层涂布在PET层的一面，所述硅胶层涂布在PET层的另一面；3) coating the acrylic layer on one side of the PET layer, the silica layer being coated on the other side of the PET layer;
4）、采用卷对卷覆膜的生产方式，将压克力胶层覆在上透明导电胶膜层或下透明导电胶膜层的PET基材上。4), using a roll-to-roll film production method, the acrylic layer is coated on the PET substrate of the upper transparent conductive film layer or the lower transparent conductive film layer.
有益效果Beneficial effect
与现有技术相比，上述提供的自粘式电光膜，具有以下的有益效果：Compared with the prior art, the self-adhesive electro-optic film provided above has the following beneficial effects:
自粘式电光膜能直接粘贴在玻璃表面实现调光功能，且安装方便，任何玻璃表面均可安装，可长时间经由阳光曝晒不变质，稳定使用；在断电时，电光膜体呈不透明状态（类似普通毛玻璃），在通电时，电光膜体会迅速呈现清亮透明；自粘式电光膜通过抗UV处理的自粘层，可在阳光曝晒的环境中，稳定不变质，大大提高自粘式电光膜的应用领域。Self-adhesive electro-optical film can be directly attached to the glass surface to realize dimming function, and it is easy to install. It can be installed on any glass surface. It can be used for a long time without being exposed to sunlight and stable. When the power is off, the electro-optic film is opaque. (similar to ordinary frosted glass), when energized, the electro-optic film body will quickly appear clear and transparent; the self-adhesive electro-optic film will pass the anti-UV treatment self-adhesive layer, which can be stable in the environment exposed to sunlight, and greatly improve self-adhesive electro-optic The field of application of membranes.
附图说明DRAWINGS
图1是本发明实施例提供的自粘式电光膜的结构示意图;1 is a schematic structural view of a self-adhesive electro-optic film according to an embodiment of the present invention;
图2是本发明实施例提供的自粘式电光膜中的电光膜体的结构示意图;2 is a schematic structural view of an electro-optic film body in a self-adhesive electro-optic film according to an embodiment of the present invention;
图3是本发明实施例提供的自粘式电光膜中的自粘层的结构示意图。3 is a schematic structural view of a self-adhesive layer in a self-adhesive electro-optic film according to an embodiment of the present invention.
图4是本发明实施例中使用紫外线可见光谱仪（UV-Vis Spectrophotometer）测量抗UV自粘层的光谱穿透图谱；4 is a UV-visible spectrometer (UV-Vis) used in an embodiment of the present invention Spectrophotometer) measures the spectral penetration map of the anti-UV self-adhesive layer;
图5是本发明实施例中的使用三用电表进行每日的观察与量测结果图。Fig. 5 is a graph showing daily observation and measurement results using a three-charging meter in an embodiment of the present invention.
其中：1-电光膜体；2-自粘层；3-上透明导电胶膜层；4-高分子聚合分散型液晶（PDLC）；5-下透明导电胶膜层；6-压克力胶层；7-PET层；8-硅胶层。Among them: 1-electro-optic film body; 2-self-adhesive layer; 3-upper transparent conductive film layer; 4-polymerized dispersion type liquid crystal (PDLC); 5--transparent transparent conductive film layer; 6-acrylic adhesive Layer; 7-PET layer; 8-silicone layer.
本发明的实施方式Embodiments of the invention
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
以下结合具体实施例对本发明的实现进行详细的描述。The implementation of the present invention will be described in detail below with reference to specific embodiments.
在本说明书的描述中，需要说明的是，除非另有明确的规定和限定，术语“设置”、“相连”及“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。In the description of the present specification, it should be noted that the terms "set", "connected" and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connections, or integral connections; may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal to the two elements. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
参照图1-5所示，为本发明提供的较佳实施例。Referring to Figures 1-5, a preferred embodiment of the present invention is provided.
本实施例提供的自粘式电光膜，包括电光膜体1和抗UV处理且透明状的自粘层2，该电光膜体1与自粘层2呈层叠状布置，电光膜体1在在断电时，呈不透明状态，电光膜体1在通电时，呈透明状态。The self-adhesive electro-optic film provided in this embodiment comprises an electro-optic film body 1 and a UV-resistant and transparent self-adhesive layer 2, wherein the electro-optic film body 1 and the self-adhesive layer 2 are arranged in a stack, and the electro-optic film body 1 is in the When the power is turned off, it is opaque, and the electro-optical film body 1 is in a transparent state when it is energized.
上述提供的自粘式电光膜，具有以下的有益效果：The self-adhesive electro-optic film provided above has the following beneficial effects:
自粘式电光膜能直接粘贴在玻璃表面实现调光功能，且安装方便，任何玻璃表面均可安装，可长时间经由阳光曝晒不变质，稳定使用；在断电时，电光膜体1呈不透明状态（类似普通毛玻璃），在通电时，电光膜体1会迅速呈现清亮透明；自粘式电光膜通过抗UV处理的自粘层2，可在阳光曝晒的环境中，稳定不变质，大大提高自粘式电光膜的应用领域。Self-adhesive electro-optic film can be directly attached to the glass surface to realize dimming function, and it is easy to install. It can be installed on any glass surface. It can be used for a long time without being exposed to sunlight and stable. When the power is off, the electro-optic film body 1 is opaque. State (similar to ordinary frosted glass), when energized, the electro-optic film body 1 will quickly appear clear and transparent; the self-adhesive electro-optic film will pass through the anti-UV treatment self-adhesive layer 2, which can be stable and not deteriorated in the environment of sunlight exposure, greatly improving Application field of self-adhesive electro-optical film.
电光膜体1包括上透明导电胶膜层3、高分子聚合分散型液晶4（PDLC）和下透明导电胶膜层5；高分子聚合分散型液晶4设置在上透明导电胶膜层3和下透明导电胶膜层5之间；The electro-optic film body 1 comprises an upper transparent conductive adhesive film layer 3, a polymerized dispersed liquid crystal 4 (PDLC) and a lower transparent conductive adhesive film layer 5; the polymerized polymer dispersed liquid crystal 4 is disposed on the upper transparent conductive adhesive film layer 3 and Between the transparent conductive adhesive film layers 5;
上透明导电胶膜层3和下透明导电胶膜层5均包括PET基材和涂覆在PET基材上的导电材料层，上透明导电胶膜层3和下透明导电胶膜层5的PET基材分别与高分子聚合分散型液晶4的上下面贴合。The upper transparent conductive adhesive film layer 3 and the lower transparent conductive adhesive film layer 5 each comprise a PET substrate and a conductive material layer coated on the PET substrate, and the upper transparent conductive adhesive film layer 3 and the lower transparent conductive adhesive film layer 5 of PET The base material is bonded to the upper and lower surfaces of the polymer-polymerized dispersion type liquid crystal 4, respectively.
上透明导电胶膜层3和下透明导电胶膜层5的制作过程如下：在厚度范围为50um-188um之间的光学PET基材上涂覆导电材料，导电材料可为氧化铟锡ITO或导电高分子PEDOT或石墨稀等材料；上透明导电胶膜层3的厚度小于1um，可见光波段550nm穿透率70%以上，上透明导电胶膜层3的表面阻抗。The upper transparent conductive adhesive film layer 3 and the lower transparent conductive adhesive film layer 5 are fabricated as follows: a conductive material is coated on an optical PET substrate having a thickness ranging from 50 um to 188 um, and the conductive material may be indium tin oxide ITO or conductive. A material such as a polymer PEDOT or a graphite thinner; the thickness of the upper transparent conductive adhesive film layer 3 is less than 1 μm, the transmittance of the visible light band of 550 nm is 70% or more, and the surface impedance of the upper transparent conductive adhesive film layer 3 is obtained.
高分子聚合分散型液晶4通过液晶与光固化树脂混和而成，高分子聚合分散型液晶4的厚度范围为10um-40um，高分子聚合分散型液晶4夹在上透明导电胶膜层3和下透明导电胶膜层5之间，工作电压范围为20VAC-250VAC，通电状态时，平行光波段550nm穿透度保持50%以上，不通电状态时，平行光波段550nm穿透度保持10%以下。The polymer-polymerized dispersion type liquid crystal 4 is obtained by mixing a liquid crystal and a photo-curable resin, and the polymer-polymerized dispersion type liquid crystal 4 has a thickness ranging from 10 um to 40 um, and the polymer-polymerized dispersion type liquid crystal 4 is sandwiched between the upper transparent conductive film layer 3 and the lower layer. Between the transparent conductive film layer 5, the working voltage range is 20VAC-250VAC. When the power is on, the transmittance of the parallel light band of 550nm is maintained at 50% or more. When the power is not applied, the transmittance of the parallel light band of 550nm is kept below 10%.
本实施例提供的电光膜体1中采用上透明导电胶膜层3和下透明导电胶膜层5，这样，既可以大大降低成本，且可以大大降低电光膜体1的表面阻抗，从而使得自粘式电光膜的整体表面阻抗降低，灵敏度增加，降低发热量。In the electro-optic film body 1 provided in this embodiment, the upper transparent conductive adhesive film layer 3 and the lower transparent conductive adhesive film layer 5 are used, so that the cost can be greatly reduced, and the surface impedance of the electro-optic film body 1 can be greatly reduced, thereby The overall surface impedance of the viscous electro-optic film is reduced, sensitivity is increased, and heat generation is reduced.
抗UV处理的自粘层2包括压克力胶层6、PET层7和硅胶层8，PET层7的两面分别对应涂布压克力胶层6、硅胶层8；PET层7的厚度范围为50um-100um；压克力胶层6涂布在PET层7的一面，压克力胶层6的厚度范围为20um-75um，压克力胶层6与电光膜体1的PET基材硬化涂层的粘着力范围为500g/inch -1500g/inch。硅胶层8涂布在PET层7的另一面，硅胶层8的厚度范围为20um-50um，通过硅胶层8与玻璃连接，硅胶层8与玻璃的粘着力范围为5 g/inch -15g/inch。The anti-UV treatment self-adhesive layer 2 comprises an acrylic adhesive layer 6, a PET layer 7 and a silica gel layer 8. The two sides of the PET layer 7 respectively correspond to the coating of the acrylic adhesive layer 6, the silicone layer 8, and the thickness range of the PET layer 7. It is 50um-100um; the acrylic layer 6 is coated on one side of the PET layer 7, and the thickness of the acrylic layer 6 is 20um-75um, and the acrylic substrate 6 and the PET substrate of the electro-optic film body 1 are hardened. The adhesion of the coating ranges from 500g/inch -1500g/inch. The silica gel layer 8 is coated on the other side of the PET layer 7. The thickness of the silica gel layer 8 ranges from 20 um to 50 um, and is connected to the glass through the silica gel layer 8. The adhesion of the silica gel layer 8 to the glass ranges from 5 g/inch. -15g/inch.
抗UV处理的自粘层2在压克力胶层6做抗UV处理，抗UV处理为胶层有效抵挡400nm波长以下的光穿透度；自粘层2是在洁净环境中生产，可见光（400nm-700nm）平均透过率范围为85%-92%，UV（<400nm）平均透过率小于1%。The UV-resistant self-adhesive layer 2 is UV-resistant in the acrylic adhesive layer 6, and the UV-resistant treatment is effective for resisting the light transmittance below 400 nm; the self-adhesive layer 2 is produced in a clean environment, visible light ( The average transmittance range from 400 nm to 700 nm is 85% to 92%, and the average transmittance of UV (<400 nm) is less than 1%.
压克力胶层6与上透明导电胶膜层3或下透明导电胶膜层5的PET基材贴合；可采用卷对卷覆膜的生产方式，将压克力胶层6覆在上透明导电胶膜层3或下透明导电胶膜层5的PET基材上。The acrylic adhesive layer 6 is adhered to the PET substrate of the upper transparent conductive adhesive film layer 3 or the lower transparent conductive adhesive film layer 5; the production method of the roll-to-roll film can be used to cover the acrylic adhesive layer 6 The transparent conductive film layer 3 or the lower transparent conductive film layer 5 is on the PET substrate.
本实施例还提供了一种上述的自粘式电光膜的制备方法，其特征在于，包括以下步骤：The embodiment further provides a method for preparing the self-adhesive electro-optic film described above, which comprises the following steps:
1）、制备上透明导电胶膜层3和下透明导电胶膜层5：在厚度范围为50um-188um之间的光学PET基材上涂覆导电材料，即得；1) preparing a transparent conductive adhesive film layer 3 and a lower transparent conductive adhesive film layer 5: coating a conductive material on an optical PET substrate having a thickness ranging from 50 um to 188 um, that is, obtaining;
2）、制备高分子聚合分散型液晶4：高分子聚合分散型液晶4通过液晶与光固化树脂混和而成；2) preparing a polymer-polymerized dispersion type liquid crystal 4: a polymer-polymerized dispersion type liquid crystal 4 is obtained by mixing a liquid crystal and a photo-curable resin;
3）、将压克力胶层6涂布在PET层7的一面，硅胶层8涂布在PET层7的另一面；3) coating the acrylic layer 6 on one side of the PET layer 7, and coating the silicone layer 8 on the other side of the PET layer 7;
4）、采用卷对卷覆膜的生产方式，将压克力胶层6覆在上透明导电胶膜层3或下透明导电胶膜层5的PET基材上。4), using a roll-to-roll film production method, the acrylic adhesive layer 6 is coated on the PET substrate of the upper transparent conductive adhesive film layer 3 or the lower transparent conductive adhesive film layer 5.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. Within the scope.
 

Claims (9)

  1. 一种自粘式电光膜，其特征在于，包括电光膜体和抗UV处理且透明状的自粘层，所述电光膜体与所述自粘层呈层叠布置；所述电光膜体在通电状态下，为不透明状态，所述电光膜体在断电状态下，为透明状态。A self-adhesive electro-optic film comprising an electro-optic film body and a UV-resistant and transparent self-adhesive layer, wherein the electro-optic film body and the self-adhesive layer are arranged in a stack; the electro-optic film body is energized In the state of being opaque, the electro-optic film body is in a transparent state in a power-off state.
  2. 根据权利要求1所述的自粘式电光膜，其特征在于，所述电光膜体呈层叠状，包括上透明导电胶膜层、高分子聚合分散型液晶和下透明导电胶膜层，所述高分子聚合分散型液晶布置在所述上透明导电胶膜层和下透明导电胶膜层之间。The self-adhesive electro-optic film according to claim 1, wherein the electro-optic film body is laminated, and comprises an upper transparent conductive adhesive film layer, a polymerized dispersed liquid crystal layer and a lower transparent conductive adhesive film layer. The polymerizable dispersion type liquid crystal is disposed between the upper transparent conductive adhesive film layer and the lower transparent conductive adhesive film layer.
  3. 根据权利要求2所述的自粘式电光膜，其特征在于，所述上透明导电胶膜层和下透明导电胶膜层均包括PET基材和涂覆在所述PET基材上的导电材料层，所述上透明导电胶膜层的PET基材和下透明导电胶膜层的PET基材分别与所述高分子聚合分散型液晶的上下面贴合。The self-adhesive electro-optic film according to claim 2, wherein the upper transparent conductive adhesive film layer and the lower transparent conductive adhesive film layer each comprise a PET substrate and a conductive material coated on the PET substrate. The layer, the PET substrate of the upper transparent conductive film layer and the PET substrate of the lower transparent conductive film layer are respectively bonded to the upper and lower surfaces of the polymer-polymerized dispersion type liquid crystal.
  4. 根据权利要求3所述的自粘式电光膜，其特征在于，所述导电材料层为氧化铟锡ITO或导电高分子PEDOT或石墨稀。The self-adhesive electro-optic film according to claim 3, wherein the conductive material layer is indium tin oxide ITO or conductive polymer PEDOT or graphite thin.
  5. 根据权利要求1至4任一项所述的自粘式电光膜，其特征在于，所述的抗UV处理的自粘层呈层叠布置，包括压克力胶层、PET层和硅胶层，所述PET层的两面分别对应涂布压克力胶层及硅胶层；所述压克力胶层与上透明导电胶膜层或下透明导电胶膜层的PET基材贴合。The self-adhesive electro-optic film according to any one of claims 1 to 4, wherein the anti-UV-treated self-adhesive layer is in a layered arrangement, comprising an acrylic layer, a PET layer and a silica layer. The two sides of the PET layer respectively correspond to the coating of the acrylic adhesive layer and the silica gel layer; the acrylic adhesive layer is bonded to the PET substrate of the upper transparent conductive adhesive film layer or the lower transparent conductive adhesive film layer.
  6. 根据权利要求5所述的自粘式电光膜，其特征在于，所述上透明导电胶膜层的厚度小于1um，可见光波段为550nm穿透率为70%以上，所述上透明导电胶膜层的表面阻抗为。The self-adhesive electro-optic film according to claim 5, wherein the upper transparent conductive adhesive film layer has a thickness of less than 1 μm, and the visible light wavelength band has a transmittance of 550 nm of 70% or more, and the upper transparent conductive adhesive film layer The surface impedance is .
  7. 根据权利要求6所述的自粘式电光膜，其特征在于，所述高分子聚合分散型液晶的厚度范围为10um-40um之间，工作电压范围在20VAC-250VAC之间；所述高分子聚合分散型液晶处于通电状态时，平行光波段550nm穿透度保持50%以上，所述高分子聚合分散型液晶处于不通电状态时，平行光波段550nm穿透度保持10%以下。The self-adhesive electro-optic film according to claim 6, wherein the polymerized and dispersed liquid crystal has a thickness ranging from 10 um to 40 um and an operating voltage ranging from 20 VAC to 250 VAC; When the dispersed liquid crystal is in an energized state, the transmittance at 550 nm in the parallel light band is maintained at 50% or more, and when the polymerized dispersion-dispersed liquid crystal is in a non-energized state, the transmittance at 550 nm in the parallel light band is maintained at 10% or less.
  8. 根据权利要求7所述的自粘式电光膜，其特征在于，所述PET层的厚度范围为50um-100um之间；所述压克力胶层的厚度范围为20um-75um之间，所述压克力胶层与电光膜的PET基材硬化涂层的粘着力范围为500 g/inch -1500g/inch之间；所述硅胶层的厚度范围为20um-50um之间，所述硅胶层与玻璃的粘着力范围为5 g/inch -15g/inch之间。The self-adhesive electro-optic film according to claim 7, wherein the PET layer has a thickness ranging from 50 um to 100 um; and the acryl layer has a thickness ranging from 20 um to 75 um. The adhesive strength of the PET substrate hard coating of the acrylic layer and the electro-optic film ranges from 500 g/inch to 1500 g/inch; the thickness of the silica layer ranges from 20 μm to 50 μm, and the silica gel layer The adhesion of the glass ranges from 5 g/inch to 15 g/inch.
  9. 一种如权利要求8所述的自粘式电光膜的制备方法，其特征在于，包括以下步骤：A method of preparing a self-adhesive electro-optic film according to claim 8, comprising the steps of:
    1）、制备上透明导电胶膜层和下透明导电胶膜层：在厚度范围为50um-188um之间的光学PET基材上涂覆导电材料，即得；1) preparing a transparent conductive adhesive film layer and a lower transparent conductive adhesive film layer: coating a conductive material on an optical PET substrate having a thickness ranging from 50 um to 188 um, that is, obtaining;
    2）、制备高分子聚合分散型液晶：所述高分子聚合分散型液晶通过液晶与光固化树脂混和而成；2) preparing a polymer-polymerized dispersion type liquid crystal: the polymer-polymerized dispersion type liquid crystal is obtained by mixing a liquid crystal and a photo-curable resin;
    3）、将所述压克力胶层涂布在PET层的一面，所述硅胶层涂布在PET层的另一面；3) coating the acrylic layer on one side of the PET layer, the silica layer being coated on the other side of the PET layer;
    4）、采用卷对卷覆膜的生产方式，将压克力胶层覆在上透明导电胶膜层或下透明导电胶膜层的PET基材上。4), using a roll-to-roll film production method, the acrylic layer is coated on the PET substrate of the upper transparent conductive film layer or the lower transparent conductive film layer.
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