CN105602578A - PDLC composition with wide viewing angle - Google Patents
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Abstract
本发明公开了一种广视角的PDLC组合物，PDLC组合物的组分及其重量百分含量为，光固化材料35.0～60.0％，液晶材料35.0～65.0％，光引发剂0.1～5.0％；PDLC组合物中还包含占PDLC组合物总重量1～3‰的间隔子。本发明作为调光材料应用在调光膜或调光玻璃上，有着极好的视角特性，可以改善PDLC侧面观看时膜面透过率降低的问题，能够提升客户体验感受。The invention discloses a PDLC composition with a wide viewing angle. The components of the PDLC composition and their weight percentages are: 35.0-60.0% of a photocurable material, 35.0-65.0% of a liquid crystal material, and 0.1-5.0% of a photoinitiator; The PDLC composition also contains spacers accounting for 1-3‰ of the total weight of the PDLC composition. The invention is used as a dimming material on a dimming film or dimming glass, and has excellent viewing angle characteristics, which can improve the problem of reduced transmittance of the film surface when the PDLC is viewed from the side, and can improve customer experience.
Description
技术领域technical field
本发明涉及液晶材料技术领域，特别是一种广视角的PDLC组合物，尤其涉及一种应用于调光膜、调光玻璃、智能背投等调光技术领域中的、具有较广视角的PDLC调光材料。The present invention relates to the technical field of liquid crystal materials, in particular to a PDLC composition with a wide viewing angle, and in particular to a PDLC with a wide viewing angle, which is applied in the field of dimming technology such as dimming film, dimming glass, and intelligent rear projection. Dimming material.
背景技术Background technique
聚合物分散液晶(PolymerDispersedLiquidCrystal，简称PDLC)是通过聚合物形成网络，将液晶以微米量级的小微滴分散在其聚合物网络内，一般将其制成光学薄膜。Polymer Dispersed Liquid Crystal (PDLC for short) forms a network through polymers, and disperses liquid crystals in micron-scale droplets in its polymer network, which is generally made into an optical film.
由于液晶微滴的光轴散乱，其非寻常光折射率与聚合物网络的折射率不匹配，且不同取向的光轴的液晶微滴之间折射率也不匹配，当光通过基体时在微滴/网络、微滴/微滴界面处发生强烈散射从而呈不透明的乳白状态或半透明状态。Due to the scattered optical axis of the liquid crystal droplet, its extraordinary optical refractive index does not match the refractive index of the polymer network, and the refractive index of the liquid crystal droplet with different orientations of the optical axis also does not match. Strong scattering occurs at the droplet/network, droplet/droplet interface resulting in an opaque opalescent or translucent state.
施加电场可使液晶微滴的光轴转向，当液晶的非寻常光折射率与聚合物网络折射率相匹配时，呈现透明态，因此光垂直于膜面时，透过率最高。当光与膜面呈一定夹角时，在这个角度上折射率匹配程度不如垂直方向，因此造成一定程度上的光散射，在这个角度观察膜面，膜的透过率降低，膜面散射光造成视角问题。除去电场，液晶微滴又恢复最初的散光状态，从而实现两种状态的转换，因为关态散射率很高，关态散射率上的差异不显著。Applying an electric field can turn the optical axis of the liquid crystal droplet. When the extraordinary refractive index of the liquid crystal matches the refractive index of the polymer network, it becomes transparent. Therefore, when the light is perpendicular to the film surface, the transmittance is the highest. When the light and the film surface form a certain angle, the degree of refractive index matching at this angle is not as good as that in the vertical direction, so a certain degree of light scattering is caused. When the film surface is observed at this angle, the transmittance of the film decreases, and the film surface scatters light. cause viewing angle problems. When the electric field is removed, the liquid crystal droplet returns to the original astigmatism state, thereby realizing the conversion of the two states, because the off-state scattering rate is very high, and the difference in the off-state scattering rate is not significant.
PDLC材料可以用于制备调光膜、智能调光玻璃、电子价签、显示器等产品，目前在商业空间装饰、酒店装潢、办公室隔断、投影展示、光学调制器、热敏及压敏器件、电控玻璃、光阀、电子书领域现阶段已经有较广泛的应用。PDLC materials can be used to prepare dimming films, smart dimming glass, electronic price tags, displays and other products. Controlled glass, light valves, and e-books have been widely used at this stage.
PDLC有很多重要参数，包括光电响应曲线、透过率、驱动电压、粘接力、寿命粘接力、视角等。其中对客户体验影响最大的是透过率与视角。因此良好的视角对PDLC的市场有很大的影响。PDLC has many important parameters, including photoelectric response curve, transmittance, driving voltage, adhesion, life adhesion, viewing angle, etc. Among them, the transmittance and viewing angle have the greatest impact on customer experience. Therefore, a good viewing angle has a great influence on the PDLC market.
发明内容Contents of the invention
本发明所要解决的技术问题是提供一种广视角的PDLC组合物，克服现有PDLC组合物存在的视角较窄的技术缺陷，增加PDLC组合物制备出的薄膜的视角范围，拓宽PDLC组合物的应用范围。The technical problem to be solved by the present invention is to provide a PDLC composition with a wide viewing angle, overcome the technical defect of a narrow viewing angle in the existing PDLC composition, increase the viewing angle range of the film prepared from the PDLC composition, and widen the viewing angle of the PDLC composition. application range.
为了解决上述技术问题，本发明所采用的技术方案是：In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
一种广视角的PDLC组合物，所述PDLC组合物的组分及其重量百分含量为，A PDLC composition with a wide viewing angle, the components of the PDLC composition and their weight percentages are:
光固化材料35.0～60.0％，Light curing material 35.0～60.0%,
液晶材料35.0～65.0％，Liquid crystal material 35.0～65.0%,
光引发剂0.1～5.0％；Photoinitiator 0.1～5.0%;
所述PDLC组合物中还包含占PDLC组合物总重量1～3‰的间隔子。The PDLC composition also contains spacers accounting for 1-3‰ of the total weight of the PDLC composition.
本发明技术方案的进一步改进在于：所述光固化材料包括光固化预聚物、稀释剂以及反应性液晶，所述光固化预聚物选自丙烯酸聚氨酯、丙烯酸聚芳酯、有机硅预聚物和环氧类预聚物的其中一种或几种。The further improvement of the technical solution of the present invention is that: the photocurable material includes a photocurable prepolymer, a diluent and a reactive liquid crystal, and the photocurable prepolymer is selected from acrylic polyurethane, acrylic polyarylate, silicone prepolymer and one or more of epoxy prepolymers.
本发明技术方案的进一步改进在于：所述稀释剂选自丙烯酸羟丙酯、甲基丙烯酸羟丙酯、丙烯酸月桂酯、甲基丙烯酸月桂酯、3-氯-2-羟基-甲基丙烯酸酯、丙烯酸异冰片酯、甲基丙烯酸异冰片酯、1，6-己二醇二丙烯酸酯、乙氧化三羟甲基丙烷三丙烯酸酯、乙基苯氧基丙烯酸酯、乙基苯氧基甲基丙烯酸酯、3,3,5-三甲基环己基丙烯酸酯、三丙烯酸丙烷三甲醇酯、三羟甲基丙烷三(3-巯基丙酸)酯、丙烯酸苄基酯、甲基丙烯酸苄基酯、丙烯酸己酯、甲基丙烯酸己酯、二环戊烯基丙烯酸酯、二环戊烯基甲基丙烯酸酯、二甲基丙烯酸乙二醇酯、甲基丙烯酸缩水甘油酯、丙烯酸缩水甘油酯、2,2,2-三氟乙基丙烯酸酯、丙烯酸四氢呋喃酯、甲基丙烯酸四氢呋喃酯、2-羟基乙基甲基丙烯酸酯、2-羟基乙基丙烯酸酯、丙烯酸-2-乙基乙酯单体、2,2,2-三氟乙基甲基丙烯酸酯、乙酰乙酸甲基丙烯酸乙二醇酯、环己烷丙烯酸酯、环己烷甲基丙烯酸酯、丙烯酸十二烷基酯的其中一种或几种。The further improvement of the technical solution of the present invention is: the diluent is selected from hydroxypropyl acrylate, hydroxypropyl methacrylate, lauryl acrylate, lauryl methacrylate, 3-chloro-2-hydroxy-methacrylate, Isobornyl Acrylate, Isobornyl Methacrylate, 1,6-Hexanediol Diacrylate, Ethoxylated Trimethylolpropane Triacrylate, Ethylphenoxyacrylate, Ethylphenoxymethacrylate ester, 3,3,5-trimethylcyclohexyl acrylate, propane trimethanol triacrylate, trimethylolpropane tris(3-mercaptopropionate), benzyl acrylate, benzyl methacrylate, Hexyl acrylate, Hexyl methacrylate, Dicyclopentenyl acrylate, Dicyclopentenyl methacrylate, Ethylene glycol dimethacrylate, Glycidyl methacrylate, Glycidyl acrylate, 2 ,2,2-Trifluoroethyl acrylate, tetrahydrofuryl acrylate, tetrahydrofuryl methacrylate, 2-hydroxyethyl methacrylate, 2-hydroxyethyl acrylate, 2-ethyl ethyl acrylate monomer , one of 2,2,2-trifluoroethyl methacrylate, ethylene glycol methacrylate acetoacetate, cyclohexane acrylate, cyclohexane methacrylate, dodecyl acrylate or several.
本发明技术方案的进一步改进在于：所述反应性液晶包括式Ⅰ所示的单反应性官能团反应性液晶材料以及式Ⅱ所示的双反应性官能团反应性液晶材料，The further improvement of the technical solution of the present invention is that: the reactive liquid crystal includes a single reactive functional group reactive liquid crystal material shown in formula I and a double reactive functional group reactive liquid crystal material shown in formula II,
其中，in,
A选自丙烯酸官能团或甲基丙烯酸官能团的其中一种；A is selected from the acrylic functional group or methacrylic functional groups one of
X1选自碳原子数为0～9的直链烷基链、碳原子数为0～9的直链烷氧基链的其中一种；X1 is selected from one of straight-chain alkyl chains with 0-9 carbon atoms and straight-chain alkoxy chains with 0-9 carbon atoms;
X2选自氰基、甲基、甲氧基、三氟甲基、三氟甲氧基、碳原子数为2～8的直链烷基链、碳原子数为2～8的直链烷氧基链的其中一种；X2 is selected from cyano, methyl, methoxy, trifluoromethyl, trifluoromethoxy, straight-chain alkyl chains with 2 to 8 carbon atoms, and straight-chain alkanes with 2 to 8 carbon atoms. one of the oxygen chains;
Y1、Y2为单键、炔键、酯键的其中一种；Y 1 and Y 2 are one of single bond, alkyne bond and ester bond;
B1、B2、B3分别选自 的其中一种。B 1 , B 2 , and B 3 are selected from one of the
优选地，式Ⅰ所示的单反应性官能团反应性液晶材料具体为以下式Ⅰ1至式Ⅰ8所示的反应性液晶材料，Preferably, the single-reactive functional group reactive liquid crystal material shown in formula I is specifically the reactive liquid crystal material shown in the following formula I1 to formula I8,
其中，in,
A选自丙烯酸官能团或甲基丙烯酸官能团的其中一种；A is selected from the acrylic functional group or methacrylic functional groups one of
X1选自碳原子数为0～9的直链烷基链、碳原子数为0～9的直链烷氧基链的其中一种；X1 is selected from one of straight-chain alkyl chains with 0-9 carbon atoms and straight-chain alkoxy chains with 0-9 carbon atoms;
X2选自氰基、甲基、甲氧基、三氟甲基、三氟甲氧基、碳原子数为2～8的直链烷基链、碳原子数为2～8的直链烷氧基链的其中一种。X2 is selected from cyano, methyl, methoxy, trifluoromethyl, trifluoromethoxy, straight-chain alkyl chains with 2 to 8 carbon atoms, and straight-chain alkanes with 2 to 8 carbon atoms. One of the oxygen chains.
更优选地，式Ⅰ所示的单反应性官能团反应性液晶材料具体为以下式Ⅰ1-1至式Ⅰ8-1所示的反应性液晶材料，More preferably, the single-reactive functional group reactive liquid crystal material shown in formula I is specifically the reactive liquid crystal material shown in the following formula I1-1 to formula I8-1,
优选地，式Ⅱ所示的双反应性官能团反应性液晶材料具体为以下式Ⅱ1至式Ⅱ5所示的反应性液晶材料，Preferably, the dual-reactive functional group reactive liquid crystal material shown in formula II is specifically the reactive liquid crystal material shown in the following formula II1 to formula II5,
其中，in,
A选自丙烯酸官能团或甲基丙烯酸官能团的其中一种；A is selected from the acrylic functional group or methacrylic functional groups one of
X1选自碳原子数为0～9的直链烷基链、碳原子数为0～9的直链烷氧基链的其中一种；X1 is selected from one of straight-chain alkyl chains with 0-9 carbon atoms and straight-chain alkoxy chains with 0-9 carbon atoms;
Y1选酯键、炔键、C-C单键、CC双键、-N＝N-键其中一种。Y 1 is selected from one of ester bond, acetylene bond, CC single bond, CC double bond, and -N=N- bond.
Y2选酯键、炔键、C-C单键、CC双键、-N＝N-键其中一种。Y 2 is selected from one of ester bond, acetylene bond, CC single bond, CC double bond, and -N=N- bond.
更优选地，式Ⅱ所示的双反应性官能团反应性液晶材料具体为以下式Ⅱ1-1至式Ⅱ5-1所示的反应性液晶材料，More preferably, the dual reactive functional group reactive liquid crystal material shown in formula II is specifically the reactive liquid crystal material shown in the following formula II1-1 to formula II5-1,
本发明技术方案的进一步改进在于：所述光引发剂选自有机过氧化物引发剂、无机过氧化物引发剂、偶氮类引发剂、氧化还原引发剂的其中一种。The further improvement of the technical solution of the present invention lies in that: the photoinitiator is selected from one of organic peroxide initiators, inorganic peroxide initiators, azo initiators, and redox initiators.
本发明技术方案的进一步改进在于：所述有机过氧化物引发剂选自酰类过氧化物、氢过氧化物、二烷基过氧化物、酯类过氧化物、酮类过氧化物、二碳酸酯过氧化物的其中一种或几种。所述酰类过氧化物选自过氧化苯甲酰、过氧化月桂酰的其中一种或几种；所述氢过氧化物选自异丙苯过氧化氢、叔丁基过氧化氢的其中一种或几种；所述二烷基过氧化物选自过氧化二叔丁基、过氧化二异丙苯的其中一种或几种；所述酯类过氧化物选自过氧化苯甲酸叔丁酯、过氧化戊酸叔丁酯的其中一种或几种；所述酮类过氧化物选自过氧化甲乙酮、过氧化环己酮的其中一种或几种；所述二碳酸酯过氧化物选自过氧化二碳酸二异丙酯、过氧化二碳酸二环己酯的其中一种或几种。The further improvement of the technical solution of the present invention is: the organic peroxide initiator is selected from the group consisting of acyl peroxides, hydroperoxides, dialkyl peroxides, ester peroxides, ketone peroxides, dialkyl peroxides, One or more of carbonate peroxides. The acyl peroxide is selected from one or more of benzoyl peroxide and lauroyl peroxide; the hydroperoxide is selected from cumene hydroperoxide and tert-butyl hydroperoxide. One or more; the dialkyl peroxide is selected from one or more of di-tert-butyl peroxide and dicumyl peroxide; the ester peroxide is selected from benzoic acid peroxide One or more of tert-butyl ester and tert-butyl peroxyvalerate; the ketone peroxide is selected from one or more of methyl ethyl ketone peroxide and cyclohexanone peroxide; the dicarbonate The peroxide is selected from one or more of diisopropyl peroxydicarbonate and dicyclohexyl peroxydicarbonate.
本发明技术方案的进一步改进在于：所述无机过氧化物引发剂为过硫酸盐类，选自过硫酸钾、过硫酸钠、过硫酸铵的其中一种或几种。The further improvement of the technical solution of the present invention is that: the inorganic peroxide initiator is a persulfate, one or more selected from potassium persulfate, sodium persulfate, and ammonium persulfate.
本发明技术方案的进一步改进在于：所述偶氮类引发剂为低活性引发剂，选自偶氮二异丁腈、偶氮二异庚腈的其中一种或几种。The further improvement of the technical solution of the present invention lies in that: the azo initiator is a low activity initiator, selected from one or more of azobisisobutyronitrile and azobisisoheptanonitrile.
本发明技术方案的进一步改进在于：所述氧化还原引发剂选自叔丁基过氧化氢/焦亚硫酸钠、过硫酸铵/亚硫酸氢钠、过硫酸钾/亚硫酸氢钠、过氧化氢/酒石酸、过硫酸铵/硫酸亚铁过氧化氢/硫酸亚铁、过氧化苯甲酰/N,N-二乙基苯胺、过氧化苯甲酰/焦磷酸亚铁、过硫酸钾/硝酸银、过硫酸盐/硫醇、异丙苯过氧化氢/氯化亚铁、过硫酸钾/氯化亚铁、过氧化氢/氯化亚铁、异丙苯过氧化氢/四乙烯亚胺的其中一种。The further improvement of the technical solution of the present invention is: the redox initiator is selected from the group consisting of tert-butyl hydroperoxide/sodium metabisulfite, ammonium persulfate/sodium bisulfite, potassium persulfate/sodium bisulfite, hydrogen peroxide/tartaric acid , ammonium persulfate/ferrous sulfate hydrogen peroxide/ferrous sulfate, benzoyl peroxide/N,N-diethylaniline, benzoyl peroxide/ferrous pyrophosphate, potassium persulfate/silver nitrate, peroxide One of sulfate/mercaptan, cumene hydroperoxide/ferrous chloride, potassium persulfate/ferrous chloride, hydrogen peroxide/ferrous chloride, cumene hydroperoxide/tetraethyleneimine kind.
本发明技术方案的进一步改进在于：所述间隔子为直径相同且直径在10～30μm之间的刚性微珠。The further improvement of the technical solution of the present invention lies in that: the spacers are rigid microbeads with the same diameter and a diameter between 10-30 μm.
本发明中的液晶材料为市场上销售的液晶混合物，以及市场上销售的液晶单体。The liquid crystal material in the present invention is a liquid crystal mixture sold in the market, and a liquid crystal monomer sold in the market.
本发明与传统技术相比具有以下优点：Compared with traditional technology, the present invention has the following advantages:
本发明的一种广视角的PDLC组合物，作为调光材料应用在调光膜或调光玻璃上，有着极好的视角特性，可以改善PDLC侧面观看时膜面透过率降低的问题，能够提升客户体验感受。A PDLC composition with a wide viewing angle of the present invention is used as a light-adjusting material on a light-adjustable film or light-adjustable glass, and has excellent viewing angle characteristics, which can improve the problem of reduced transmittance of the film surface when the PDLC is viewed from the side, and can Improve customer experience.
与传统的PDLC膜层相比较，本发明的一种广视角的PDLC组合物使用反应性液晶材料，通过不同反应活性基团在UV聚合时的反应活性不同，在液晶微滴与聚合物网络界面形成一层折射率梯度变化的界面层，从而实现在光从侧向通过PDLC薄膜时，在侧向光路上的散射与折射降低，式Ⅰ所示的单反应性官能团反应性液晶材料用于控制碳链长度，式Ⅱ所示的双反应性官能团反应性液晶材料用于控制聚合顺序。Compared with the traditional PDLC film layer, the PDLC composition of a kind of wide viewing angle of the present invention uses the reactive liquid crystal material, through the different reactivity of different reactive groups during UV polymerization, at the interface of the liquid crystal microdroplet and the polymer network Form an interface layer with a gradient change in refractive index, so that when light passes through the PDLC film from the side, the scattering and refraction on the side light path are reduced. The single reactive functional group reactive liquid crystal material shown in formula I is used to control The carbon chain length, the dual reactive functional group reactive liquid crystal material shown in formula II is used to control the polymerization sequence.
本发明的一种广视角的PDLC组合物中的间隔子用于控制调光膜两篇基材之间的距离均匀性。The spacer in the wide viewing angle PDLC composition of the present invention is used to control the uniformity of the distance between the two substrates of the dimming film.
具体实施方式detailed description
本发明公开了一种广视角的PDLC组合物，PDLC组合物的组分及其重量百分含量为，The invention discloses a PDLC composition with a wide viewing angle. The components of the PDLC composition and their weight percentages are:
其中，in,
光固化材料包括光固化预聚物、稀释剂以及反应性液晶。Photocurable materials include photocurable prepolymers, diluents, and reactive liquid crystals.
液晶材料为市场上销售的液晶混合物，以及市场上销售的液晶单体。The liquid crystal material is a liquid crystal mixture sold in the market, and a liquid crystal monomer sold in the market.
光引发剂选自有机过氧化物引发剂、无机过氧化物引发剂、偶氮类引发剂、氧化还原引发剂的其中一种。The photoinitiator is selected from one of organic peroxide initiators, inorganic peroxide initiators, azo initiators and redox initiators.
间隔子为直径相同且直径在10～30μm之间的刚性微珠。The spacers are rigid microbeads with the same diameter and a diameter between 10 and 30 μm.
下面结合实施例对本发明的技术方案做进一步的解释。The technical solutions of the present invention will be further explained below in conjunction with the embodiments.
实施例1Example 1
本实施例的一种广视角的PDLC组合物，PDLC组合物中的组分及其重量百分含量如下所示：A PDLC composition with a wide viewing angle in this embodiment, the components in the PDLC composition and their weight percentages are as follows:
光固化材料49.0％，Light curing material 49.0%,
液晶材料50.0％，Liquid crystal material 50.0%,
光引发剂1.0％。Photoinitiator 1.0%.
本实施例的光固化材料的成分及成分在PDLC组合物中的重量百分含量具体为：The components of the photocurable material of this embodiment and the weight percentage of the components in the PDLC composition are specifically:
光固化预聚物24.0％，Photocurable prepolymer 24.0%,
稀释剂22.0％，Thinner 22.0%,
反应性液晶3.0％。Reactive Liquid Crystal 3.0%.
光固化预聚物选择沙多玛公司的CN704。CN704为单官能度丙烯酸聚酯，具有改善附着力的作用，本配方中作为主要提供聚合物强度的成分。The photocuring prepolymer chooses CN704 from Sartomer Company. CN704 is a monofunctional acrylic polyester, which can improve the adhesion. In this formula, it is used as the main component to provide the strength of the polymer.
稀释剂选择丙烯酸羟丙酯。The diluent is hydroxypropyl acrylate.
反应性液晶的结构式及其在PDLC组合物中的重量百分含量具体为：The structural formula of the reactive liquid crystal and its weight percentage in the PDLC composition are specifically:
本实施例的液晶材料选择石家庄诚志永华显示材料有限公司的液晶材料SL-79。SL-79的deltan＝0.22，具有较高双折射，有利于提高PDLC的Haze程度。主要组成为联苯氰、三联苯氰类液晶。The liquid crystal material of this embodiment is selected as the liquid crystal material SL-79 of Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd. The deltan of SL-79 is 0.22, which has higher birefringence, which is beneficial to improve the Haze degree of PDLC. The main components are biphenylcyanide and terphenylcyanide liquid crystals.
本实施例的光引发剂选择光引发剂UV184。光引发剂184，化学名称为1-羟基环己基苯基甲酮，分子式是C25H30O3，分子量378.5039，CAS登记号为947-19-3。The photoinitiator of this embodiment selects photoinitiator UV184. Photoinitiator 184, the chemical name is 1-hydroxycyclohexyl phenyl ketone, the molecular formula is C25H30O3, the molecular weight is 378.5039, and the CAS registration number is 947-19-3.
本实施例中间隔子的直径为10um，PDLC组合物中间隔子占PDLC组合物总重量的1‰。间隔子材料为SiO2。The diameter of the spacer in this embodiment is 10um, and the spacer in the PDLC composition accounts for 1‰ of the total weight of the PDLC composition. The spacer material is SiO 2 .
实施例2Example 2
本实施例的一种广视角的PDLC组合物，PDLC组合物中的组分及其重量百分含量如下所示：A PDLC composition with a wide viewing angle in this embodiment, the components in the PDLC composition and their weight percentages are as follows:
光固化材料48.0％，Light curing material 48.0%,
液晶材料50.0％，Liquid crystal material 50.0%,
光引发剂2.0％；Photoinitiator 2.0%;
本实施例的光固化材料的成分及成分在PDLC组合物中的重量百分含量具体为：The components of the photocurable material of this embodiment and the weight percentage of the components in the PDLC composition are specifically:
光固化预聚物24.0％，Photocurable prepolymer 24.0%,
稀释剂21.0％，Thinner 21.0%,
反应性液晶3.0％。Reactive Liquid Crystal 3.0%.
光固化预聚物选择沙多玛公司的丙烯酸聚氨酯CN966J75NS。CN966J75NS为双官能度脂肪族聚氨酯丙烯酸酯聚合物，具有强度高韧性好的特点，在本配方中主要提供聚合物强度及韧性。The photocuring prepolymer is selected from Sartomer's acrylic polyurethane CN966J75NS. CN966J75NS is a bifunctional aliphatic urethane acrylate polymer with high strength and good toughness. In this formula, it mainly provides polymer strength and toughness.
稀释剂选择丙烯酸月桂酯。The diluent is lauryl acrylate.
反应性液晶的结构式及其在PDLC组合物中的重量百分含量具体为：The structural formula of the reactive liquid crystal and its weight percentage in the PDLC composition are specifically:
本实施例的液晶材料选择石家庄诚志永华显示材料有限公司的液晶材料SLC1717。双折射率0.22，主要成分为联苯氰、脂类以及苯炔类液晶。应用在本配方中具有Haze高的特点。The liquid crystal material in this embodiment is SLC1717 from Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd. The birefringence index is 0.22, and the main components are biphenylcyanide, lipids and benzyne liquid crystals. The application in this formula has the characteristics of high Haze.
本实施例的光引发剂选择光引发剂UV184。化学名称为1-羟基环己基苯基甲酮，分子式是C25H30O3，分子量378.5039，CAS登记号为947-19-3，常见光催化剂及助剂一种。The photoinitiator of this embodiment selects photoinitiator UV184. The chemical name is 1-hydroxycyclohexyl phenyl ketone, the molecular formula is C25H30O3, the molecular weight is 378.5039, and the CAS registration number is 947-19-3. It is a common photocatalyst and additive.
本实施例中间隔子的直径为15um，PDLC组合物中间隔子占PDLC组合物总重量的2‰。间隔子材料为SiO2。The diameter of the spacer in this embodiment is 15um, and the spacer in the PDLC composition accounts for 2‰ of the total weight of the PDLC composition. The spacer material is SiO 2 .
实施例3Example 3
本实施例的一种广视角的PDLC组合物，PDLC组合物中的组分及其重量百分含量如下所示：A PDLC composition with a wide viewing angle in this embodiment, the components in the PDLC composition and their weight percentages are as follows:
光固化材料44.0％，Light curing material 44.0%,
液晶材料55.0％，Liquid crystal material 55.0%,
光引发剂1.0％；Photoinitiator 1.0%;
本实施例的光固化材料的成分及成分在PDLC组合物中的重量百分含量具体为：The components of the photocurable material of this embodiment and the weight percentage of the components in the PDLC composition are specifically:
光固化预聚物17.0％，Photocurable prepolymer 17.0%,
稀释剂21.0％，Thinner 21.0%,
反应性液晶4.0％。Reactive Liquid Crystal 4.0%.
光固化预聚物选择上海库耳实业有限公司的丙烯酸聚氨酯UV65。UV65具有强度高韧性好的特点，在本配方中主要提供聚合物强度及韧性。The light-curing prepolymer chooses acrylic polyurethane UV65 from Shanghai Kuer Industrial Co., Ltd. UV65 has the characteristics of high strength and good toughness. In this formula, it mainly provides polymer strength and toughness.
稀释剂的成分及成分在PDLC组合物中的重量百分含量具体为：The components of the diluent and the weight percentage of the components in the PDLC composition are specifically:
反应性液晶的结构式及其在PDLC组合物中的重量百分含量具体为：The structural formula of the reactive liquid crystal and its weight percentage in the PDLC composition are specifically:
本实施例的液晶材料选择石家庄诚志永华显示材料有限公司的液晶材料SL-16。The liquid crystal material of this embodiment is selected as the liquid crystal material SL-16 of Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd.
本实施例的光引发剂选择光引发剂TPO。化学名称：2，4，6，-三甲基苯甲酰基-二苯基氧化磷英文名称：2,4,6-TrimethylBenzoylDiphenylphosphineOxideCASNO：75980-60-8分子式:C22H21PO2分子量:348.5。TPO是一种高效的自由基(1)型光、在长波长范围内都有吸收的高效光引发剂。由于其具有很宽的吸收范围，其有效吸收峰值为350-400nm，一直吸收致420nm左右，它的吸收峰较常规引发剂偏长，经光照后可生成苯甲酰和磷酰基两个自由基，都能引发聚合，因此光固化速度快，它还具有光漂白作用，适合于厚膜深层固化和涂层不变黄的特性，具有低挥发，适用于水基。The photoinitiator of this embodiment selects photoinitiator TPO. Chemical name: 2,4,6,-Trimethylbenzoyl-diphenylphosphine oxide English name: 2,4,6-TrimethylBenzoylDiphenylphosphineOxideCASNO: 75980-60-8 Molecular formula: C22H21PO2 Molecular weight: 348.5. TPO is a high-efficiency free radical (1) type photoinitiator that absorbs in the long wavelength range. Because it has a wide absorption range, its effective absorption peak is 350-400nm, and its absorption peak is around 420nm. Its absorption peak is longer than that of conventional initiators, and it can generate two free radicals, benzoyl and phosphoryl, after being illuminated. , can initiate polymerization, so the photocuring speed is fast, it also has photobleaching effect, suitable for deep curing of thick film and non-yellowing properties of coating, low volatility, suitable for water base.
本实施例中间隔子的直径为15um，PDLC组合物中间隔子占PDLC组合物总重量的2‰。间隔子材料为SiO2。The diameter of the spacer in this embodiment is 15um, and the spacer in the PDLC composition accounts for 2‰ of the total weight of the PDLC composition. The spacer material is SiO 2 .
实施例4Example 4
本实施例的一种广视角的PDLC组合物，PDLC组合物中的组分及其重量百分含量如下所示：A PDLC composition with a wide viewing angle in this embodiment, the components in the PDLC composition and their weight percentages are as follows:
光固化材料44.0％，Photocurable material 44.0%,
液晶材料54.5％，Liquid crystal material 54.5%,
光引发剂1.5％；Photoinitiator 1.5%;
本实施例的光固化材料的成分及成分在PDLC组合物中的重量百分含量具体为：The components of the photocurable material of this embodiment and the weight percentage of the components in the PDLC composition are specifically:
光固化预聚物19.0％，Photocurable prepolymer 19.0%,
稀释剂22.0％，Thinner 22.0%,
反应性液晶3.0％。Reactive Liquid Crystal 3.0%.
光固化预聚物选择沙多玛公司的丙烯酸聚芳酯CN970A80。CN970A80具有强度高韧性好的特点，在本配方中主要提供聚合物强度及韧性As the photocuring prepolymer, polyarylate acrylate CN970A80 from Sartomer Company was selected. CN970A80 has the characteristics of high strength and good toughness. In this formula, it mainly provides polymer strength and toughness
稀释剂的成分及成分在PDLC组合物中的重量百分含量具体为：The components of the diluent and the weight percentage of the components in the PDLC composition are specifically:
反应性液晶的结构式及其在PDLC组合物中的重量百分含量具体为：The structural formula of the reactive liquid crystal and its weight percentage in the PDLC composition are specifically:
本实施例的液晶材料选择石家庄诚志永华显示材料有限公司的液晶材料RQ-002。主要成分为脂类氰类、以及联苯氰液晶。双折射率n＝0.2。在本配方中具有良好溶解性及聚合后的相分离性。The liquid crystal material in this embodiment is RQ-002 from Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd. The main components are lipid cyanides and biphenylcyanide liquid crystals. Birefringence n=0.2. In this formula, it has good solubility and phase separation after polymerization.
本实施例的光引发剂选择光引发剂UV651。UV651(1065)光引发剂又称苯偶酰双甲醚，化学名称a，a-二甲氧基-a-苯基苯乙酮，简称DMPA，结构式为C6H5COC(OCH3)2C6H5，分子量256.30。白色或浅黄色结晶，相对密度1.1278。熔点64～67℃。溶于丙酮、醋酸乙酯、异丙醇、热甲醇等有机溶剂，不溶于水。遇酸分解，在碱性中稳定，对光敏感。低毒。最大吸收波长337nm，适用于不饱和聚酯/苯乙烯、丙烯酸酯、硅氧烷等体系，热稳定性非常优良，具有较高的抗猝灭性和光引发剂活性，但黄变性比较严重。The photoinitiator of this embodiment selects photoinitiator UV651. UV651(1065) photoinitiator is also called benzil dimethyl ether, chemical name a, a-dimethoxy-a-phenylacetophenone, DMPA for short, structural formula C6H5COC(OCH3)2C6H5, molecular weight 256.30. White or light yellow crystal, relative density 1.1278. The melting point is 64-67°C. Soluble in acetone, ethyl acetate, isopropanol, hot methanol and other organic solvents, insoluble in water. Decomposes in case of acid, stable in alkaline, sensitive to light. Low toxicity. The maximum absorption wavelength is 337nm, suitable for unsaturated polyester/styrene, acrylate, siloxane and other systems, with excellent thermal stability, high quenching resistance and photoinitiator activity, but serious yellowing.
本实施例中间隔子的直径为20um，PDLC组合物中间隔子占PDLC组合物总重量的3‰。间隔子材料为SiO2。The diameter of the spacer in this embodiment is 20um, and the spacer in the PDLC composition accounts for 3‰ of the total weight of the PDLC composition. The spacer material is SiO 2 .
实施例5Example 5
本实施例的一种广视角的PDLC组合物，PDLC组合物中的组分及其重量百分含量如下所示：A PDLC composition with a wide viewing angle in this embodiment, the components in the PDLC composition and their weight percentages are as follows:
光固化材料47.0％，Light curing material 47.0%,
液晶材料51.0％，Liquid crystal material 51.0%,
光引发剂2.0％；Photoinitiator 2.0%;
本实施例的光固化材料的成分及成分在PDLC组合物中的重量百分含量具体为：The components of the photocurable material of this embodiment and the weight percentage of the components in the PDLC composition are specifically:
光固化预聚物20.0％，Photocurable prepolymer 20.0%,
稀释剂24.0％，Thinner 24.0%,
反应性液晶3.0％。Reactive Liquid Crystal 3.0%.
光固化预聚物选择沙多玛公司的丙烯酸聚芳酯CN9782。CN9782为芳香族聚酯，具有较高的折射率，在本配方中，主要提供聚合物网络的结构强度。As the photocuring prepolymer, polyarylate acrylate CN9782 from Sartomer Company was selected. CN9782 is an aromatic polyester with a high refractive index. In this formula, it mainly provides the structural strength of the polymer network.
稀释剂的成分及成分在PDLC组合物中的重量百分含量具体为：The components of the diluent and the weight percentage of the components in the PDLC composition are specifically:
反应性液晶的结构式及其在PDLC组合物中的重量百分含量具体为：The structural formula of the reactive liquid crystal and its weight percentage in the PDLC composition are specifically:
本实施例的液晶材料选择石家庄诚志永华显示材料有限公司的液晶材料099316。099316组成为脂类液晶，联苯氰类液晶，氟类液晶，溶剂类液晶等。因其双折射为0.169，其在PDLC液晶中视角表现较好。The liquid crystal material in this embodiment is 099316 from Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd. The composition of 099316 is lipid liquid crystal, biphenylcyanide liquid crystal, fluorine liquid crystal, solvent liquid crystal and the like. Because of its birefringence of 0.169, it has a better viewing angle performance in PDLC liquid crystals.
本实施例的光引发剂选择光引发剂ITX。化学名称：2异丙基硫杂蒽酮，ITX是用于透明或有色的UV-固化丝印油墨、复印清漆、平版印刷油墨、柔印油墨、电子产品、木材涂料、粘合剂、和光致抗蚀剂的高效光引发剂。The photoinitiator of this embodiment selects photoinitiator ITX. Chemical Name: 2-Isopropylthioxanthone, ITX is used in transparent or pigmented UV-curable screen printing inks, copy varnishes, lithographic inks, flexographic inks, electronics, wood coatings, adhesives, and photoresist Efficient photoinitiator for etchant.
本实施例中间隔子的直径为25um，PDLC组合物中间隔子占PDLC组合物总重量的2‰。间隔子材料为SiO2。The diameter of the spacer in this embodiment is 25um, and the spacer in the PDLC composition accounts for 2‰ of the total weight of the PDLC composition. The spacer material is SiO 2 .
实施例6Example 6
本实施例的一种广视角的PDLC组合物，PDLC组合物中的组分及其重量百分含量如下所示：A PDLC composition with a wide viewing angle in this embodiment, the components in the PDLC composition and their weight percentages are as follows:
光固化材料50.0％，Light curing material 50.0%,
液晶材料47.5％，Liquid crystal material 47.5%,
光引发剂2.5％；Photoinitiator 2.5%;
本实施例的光固化材料的成分及成分在PDLC组合物中的重量百分含量具体为：The components of the photocurable material of this embodiment and the weight percentage of the components in the PDLC composition are specifically:
光固化预聚物24.0％，Photocurable prepolymer 24.0%,
稀释剂23.0％，Thinner 23.0%,
反应性液晶3.0％。Reactive Liquid Crystal 3.0%.
光固化预聚物选择沙多玛公司的丙烯酸聚芳酯CN975。CN975为芳香族聚酯，具有较高的折射率，在本配方中，主要提供聚合物网络的结构强度As the photocuring prepolymer, polyarylate acrylate CN975 from Sartomer Company was selected. CN975 is an aromatic polyester with a high refractive index. In this formula, it mainly provides the structural strength of the polymer network
稀释剂的成分及成分在PDLC组合物中的重量百分含量具体为：The components of the diluent and the weight percentage of the components in the PDLC composition are specifically:
反应性液晶的结构式及其在PDLC组合物中的重量百分含量具体为：The structural formula of the reactive liquid crystal and its weight percentage in the PDLC composition are specifically:
本实施例的液晶材料选择石家庄诚志永华显示材料有限公司的液晶材料I71-004。I71-004为高双折射液晶，deltan＝0.24，在本配方中具有良好的Haze。主要成分为氟氰类液晶与炔类液晶。The liquid crystal material I71-004 of Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd. is selected as the liquid crystal material in this embodiment. I71-004 is a liquid crystal with high birefringence, deltan=0.24, and has good Haze in this formula. The main components are cyanofluoride liquid crystals and alkyne liquid crystals.
本实施例的光引发剂选择光引发剂ITX。化学名称：2异丙基硫杂蒽酮，ITX是用于透明或有色的UV-固化丝印油墨、复印清漆、平版印刷油墨、柔印油墨、电子产品、木材涂料、粘合剂、和光致抗蚀剂的高效光引发剂The photoinitiator of this embodiment selects photoinitiator ITX. Chemical Name: 2-Isopropylthioxanthone, ITX is used in transparent or pigmented UV-curable screen printing inks, copy varnishes, lithographic printing inks, flexographic inks, electronics, wood coatings, adhesives, and photoresist Efficient photoinitiator for etchant
本实施例中间隔子的直径为25um，PDLC组合物中间隔子占PDLC组合物总重量的3‰。间隔子材料为SiO2。The diameter of the spacer in this embodiment is 25um, and the spacer in the PDLC composition accounts for 3‰ of the total weight of the PDLC composition. The spacer material is SiO 2 .
实施例7Example 7
本实施例的一种广视角的PDLC组合物，PDLC组合物中的组分及其重量百分含量如下所示：A PDLC composition with a wide viewing angle in this embodiment, the components in the PDLC composition and their weight percentages are as follows:
光固化材料53.0％，Photocurable material 53.0%,
液晶材料44.0％，Liquid crystal material 44.0%,
光引发剂3.0％；Photoinitiator 3.0%;
本实施例的光固化材料的成分及成分在PDLC组合物中的重量百分含量具体为：The components of the photocurable material of this embodiment and the weight percentage of the components in the PDLC composition are specifically:
光固化预聚物30.0％，Photocurable prepolymer 30.0%,
稀释剂20.0％，Thinner 20.0%,
反应性液晶3.0％。Reactive Liquid Crystal 3.0%.
光固化预聚物选择沙多玛公司的丙烯酸聚芳酯CN970A80。其为芳香族聚酯，具有较高的折射率，在本配方中，主要提供聚合物网络的结构强度As the photocuring prepolymer, polyarylate acrylate CN970A80 from Sartomer Company was selected. It is an aromatic polyester with a high refractive index. In this formulation, it mainly provides the structural strength of the polymer network
稀释剂的成分及成分在PDLC组合物中的重量百分含量具体为：The components of the diluent and the weight percentage of the components in the PDLC composition are specifically:
反应性液晶的结构式及其在PDLC组合物中的重量百分含量具体为：The structural formula of the reactive liquid crystal and its weight percentage in the PDLC composition are specifically:
本实施例的液晶材料选择石家庄诚志永华显示材料有限公司的液晶材料I71-004。I71-004为高双折射液晶，deltan＝0.24，在本配方中具有良好的Haze。主要成分为氟氰类液晶与炔类液晶。The liquid crystal material I71-004 of Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd. is selected as the liquid crystal material in this embodiment. I71-004 is a liquid crystal with high birefringence, deltan=0.24, and has good Haze in this formula. The main components are cyanofluoride liquid crystals and alkyne liquid crystals.
本实施例的光引发剂选择光引发剂过氧化环己酮。分子式是C12H22O5C5H10C(OOH)OOC(OH)C5H10。英文名称cyclohexanoneperoxide。The photoinitiator of the present embodiment selects photoinitiator cyclohexanone peroxide. The molecular formula is C12H22O5C5H10C(OOH)OOC(OH)C5H10. English name cyclohexanoneperoxide.
本实施例中间隔子的直径为30um，PDLC组合物中间隔子占PDLC组合物总重量的3‰。间隔子材料为SiO2。The diameter of the spacer in this embodiment is 30um, and the spacer in the PDLC composition accounts for 3‰ of the total weight of the PDLC composition. The spacer material is SiO 2 .
实施例8Example 8
本实施例的一种广视角的PDLC组合物，PDLC组合物中的组分及其重量百分含量如下所示：A PDLC composition with a wide viewing angle in this embodiment, the components in the PDLC composition and their weight percentages are as follows:
光固化材料57.0％，Photocurable material 57.0%,
液晶材料40.0％，Liquid crystal material 40.0%,
光引发剂3.0％；Photoinitiator 3.0%;
本实施例的光固化材料的成分及成分在PDLC组合物中的重量百分含量具体为：The components of the photocurable material of this embodiment and the weight percentage of the components in the PDLC composition are specifically:
光固化预聚物27.0％，Photocurable prepolymer 27.0%,
稀释剂25.0％，Thinner 25.0%,
反应性液晶5.0％。Reactive Liquid Crystal 5.0%.
光固化预聚物选择有机硅预聚物。The photocurable prepolymer is selected from silicone prepolymer.
稀释剂的成分及成分在PDLC组合物中的重量百分含量具体为：The components of the diluent and the weight percentage of the components in the PDLC composition are specifically:
反应性液晶的结构式及其在PDLC组合物中的重量百分含量具体为：The structural formula of the reactive liquid crystal and its weight percentage in the PDLC composition are specifically:
本实施例的液晶材料选择石家庄诚志永华显示材料有限公司的液晶材料SLC9012。SLC9012主要为氰类液晶。The liquid crystal material in this embodiment is SLC9012 from Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd. SLC9012 is mainly cyanide liquid crystal.
本实施例的光引发剂选择光引发剂偶氮二异丁腈。英文名称：2,2'-Azobis(2-methylpropionitrile)。CAS号：78-67-1。偶氮二异丁腈是油溶性的偶氮引发剂，偶氮类引发剂反应稳定，是一级反应，没有副反应，比较好控制，所以广泛应用在高分子的研究和生产。比如氯乙烯、醋酸乙烯、丙烯腈等单体聚合引发剂，也可用作聚氯乙烯、聚烯烃、聚氨酯、聚乙烯醇、丙烯腈与丁二烯和苯乙烯共聚物、聚异氰酸酯、聚醋酸乙烯酯、聚酰胺和聚酯等的发泡剂。The photoinitiator of this embodiment selects photoinitiator azobisisobutyronitrile. English name: 2,2'-Azobis (2-methylpropionitrile). CAS number: 78-67-1. Azobisisobutyronitrile is an oil-soluble azo initiator. The reaction of azo initiators is stable, it is a first-order reaction, there is no side reaction, and it is relatively easy to control, so it is widely used in the research and production of polymers. Such as vinyl chloride, vinyl acetate, acrylonitrile and other monomer polymerization initiators, can also be used as polyvinyl chloride, polyolefin, polyurethane, polyvinyl alcohol, acrylonitrile, butadiene and styrene copolymer, polyisocyanate, polyacetic acid Blowing agent for vinyl ester, polyamide and polyester etc.
本实施例中间隔子的直径为30um，PDLC组合物中间隔子占PDLC组合物总重量的3‰。间隔子材料为SiO2。The diameter of the spacer in this embodiment is 30um, and the spacer in the PDLC composition accounts for 3‰ of the total weight of the PDLC composition. The spacer material is SiO 2 .
实施例9Example 9
本实施例的一种广视角的PDLC组合物，PDLC组合物中的组分及其重量百分含量如下所示：A PDLC composition with a wide viewing angle in this embodiment, the components in the PDLC composition and their weight percentages are as follows:
光固化材料62.0％，Light curing material 62.0%,
液晶材料35.0％，Liquid crystal material 35.0%,
光引发剂3.0％；Photoinitiator 3.0%;
本实施例的光固化材料的成分及成分在PDLC组合物中的重量百分含量具体为：The components of the photocurable material of this embodiment and the weight percentage of the components in the PDLC composition are specifically:
光固化预聚物25.0％，Photocurable prepolymer 25.0%,
稀释剂32.0％，Thinner 32.0%,
反应性液晶5.0％。Reactive Liquid Crystal 5.0%.
光固化预聚物选择环氧预聚物。The photocurable prepolymer is epoxy prepolymer.
稀释剂的成分及成分在PDLC组合物中的重量百分含量具体为：The components of the diluent and the weight percentage of the components in the PDLC composition are specifically:
反应性液晶的结构式及其在PDLC组合物中的重量百分含量具体为：The structural formula of the reactive liquid crystal and its weight percentage in the PDLC composition are specifically:
本实施例的液晶材料选择石家庄诚志永华显示材料有限公司的液晶材料SLC1717。双折射率0.22，主要成分为联苯氰、脂类以及苯炔类液晶。应用在本配方中具有Haze高的特点。The liquid crystal material in this embodiment is SLC1717 from Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd. The birefringence index is 0.22, and the main components are biphenylcyanide, lipids and benzyne liquid crystals. The application in this formula has the characteristics of high Haze.
本实施例的光引发剂选择光引发剂异丙苯过氧化氢/氯化亚铁。The photoinitiator of the present embodiment selects photoinitiator cumene hydroperoxide/ferrous chloride.
本实施例中间隔子的直径为30um，PDLC组合物中间隔子占PDLC组合物总重量的2‰。间隔子材料为SiO2。The diameter of the spacer in this embodiment is 30um, and the spacer in the PDLC composition accounts for 2‰ of the total weight of the PDLC composition. The spacer material is SiO 2 .
实施例10Example 10
本实施例的一种广视角的PDLC组合物，PDLC组合物中的组分及其重量百分含量如下所示：A PDLC composition with a wide viewing angle in this embodiment, the components in the PDLC composition and their weight percentages are as follows:
光固化材料62.0％，Light curing material 62.0%,
液晶材料35.0％，Liquid crystal material 35.0%,
光引发剂3.0％；Photoinitiator 3.0%;
本实施例的光固化材料的成分及成分在PDLC组合物中的重量百分含量具体为：The components of the photocurable material of this embodiment and the weight percentage of the components in the PDLC composition are specifically:
光固化预聚物25.0％，Photocurable prepolymer 25.0%,
稀释剂34.0％，Thinner 34.0%,
反应性液晶3.0％。Reactive Liquid Crystal 3.0%.
光固化预聚物选择环氧预聚物。The photocurable prepolymer is epoxy prepolymer.
稀释剂的成分及成分在PDLC组合物中的重量百分含量具体为：The components of the diluent and the weight percentage of the components in the PDLC composition are specifically:
反应性液晶的结构式及其在PDLC组合物中的重量百分含量具体为：The structural formula of the reactive liquid crystal and its weight percentage in the PDLC composition are specifically:
本实施例的液晶材料选择石家庄诚志永华显示材料有限公司的液晶材料SL-79。SL-79的deltan＝0.22，具有较高双折射，有利于提高PDLC的Haze程度。主要组成为联苯氰、三联苯氰类液晶。The liquid crystal material of this embodiment is selected as the liquid crystal material SL-79 of Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd. The deltan of SL-79 is 0.22, which has higher birefringence, which is beneficial to improve the Haze degree of PDLC. The main components are biphenylcyanide and terphenylcyanide liquid crystals.
本实施例的光引发剂选择光引发剂过氧化月桂酰。英文名称：LauroylPeroxide。作高分子聚合引发剂、发泡剂。The photoinitiator of this embodiment selects photoinitiator lauroyl peroxide. English name: Lauroyl Peroxide. It can be used as polymer polymerization initiator and foaming agent.
本实施例中间隔子的直径为40um，PDLC组合物中间隔子占PDLC组合物总重量的2‰。间隔子材料为SiO2。The diameter of the spacer in this embodiment is 40um, and the spacer in the PDLC composition accounts for 2‰ of the total weight of the PDLC composition. The spacer material is SiO 2 .
实施例11Example 11
制备PDLC调光膜Film-1～Film-10。Prepare PDLC dimming films Film-1 to Film-10.
1)将基材平铺在涂布台上，涂布机速度设置为20mm/s，将上述实施例1-实施例10所配制的广视角的PDLC组合物滴在涂布头处，启动开始按钮，进行涂布，得到膜片；1) Spread the substrate on the coating table, set the speed of the coating machine to 20mm/s, drop the PDLC composition with a wide viewing angle prepared in the above-mentioned Example 1-Example 10 on the coating head, and start button to apply coating to obtain a diaphragm;
2)将膜片放在紫外固化机中采用0.5mW～2.5mW/cm2的能量固化2min，得到PDLC调光膜Film-1～Film-10。2) Put the film in a UV curing machine and cure it for 2 minutes with an energy of 0.5mW-2.5mW/cm 2 to obtain PDLC dimming films Film-1-Film-10.
PDLC调光膜性能检测条件：PDLC dimming film performance testing conditions:
雾度：WGT-S透过率/雾度测试仪；Haze: WGT-S transmittance/haze tester;
膜片与光路呈45°测试雾度。驱动所用电压统一为110V。The diaphragm and the light path are at 45° to test the haze. The driving voltage is uniformly 110V.
实施例11所得PDLC调光膜的膜片Film-1～Film-10，性能检测结果如表1所示，Film-11为市售产品性能。The performance test results of Film-1 to Film-10 of the PDLC dimming film obtained in Example 11 are shown in Table 1, and Film-11 is a commercially available product.
表1、Film-1至Film-11的性能检测结果Table 1. Performance test results of Film-1 to Film-11
由上可知，本发明的广视角的PDLC组合物，用作调光材料制作成的PDLC调光膜，对视角有所改善。与现有的市面上常规的PDLC调光膜，本发明的PDLC调光膜视角特性优良，这样的效果是本领域技术人员所不能预料到的。It can be known from the above that the PDLC composition with a wide viewing angle of the present invention is used as a PDLC dimming film made of a dimming material, and the viewing angle is improved. Compared with the existing conventional PDLC light-adjusting films on the market, the PDLC light-adjusting film of the present invention has excellent viewing angle characteristics, and such effects are unexpected by those skilled in the art.
尽管结合优选实施例对本发明进行了说明，但本发明并不局限于上述实施例，应当理解，在本发明构思的引导下，本领域技术人员可进行各种修改和改进，所附权利要求概括了本发明的范围。Although the present invention has been described in conjunction with preferred embodiments, the present invention is not limited to the above-mentioned embodiments, it should be understood that under the guidance of the present invention, those skilled in the art can make various modifications and improvements, and the appended claims summarize scope of the present invention.
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