WO2013107226A1 - 含氟聚合物电泳微胶囊制备方法 - Google Patents

含氟聚合物电泳微胶囊制备方法 Download PDF

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WO2013107226A1
WO2013107226A1 PCT/CN2012/085872 CN2012085872W WO2013107226A1 WO 2013107226 A1 WO2013107226 A1 WO 2013107226A1 CN 2012085872 W CN2012085872 W CN 2012085872W WO 2013107226 A1 WO2013107226 A1 WO 2013107226A1
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solution
prepolymer
polypolyol
polyisocyanate
fluorine
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PCT/CN2012/085872
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English (en)
French (fr)
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赵明
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京东方科技集团股份有限公司
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Publication of WO2013107226A1 publication Critical patent/WO2013107226A1/zh

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02Making microcapsules or microballoons
    • B01J13/06Making microcapsules or microballoons by phase separation
    • B01J13/14Polymerisation; cross-linking
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0097Dye preparations of special physical nature; Tablets, films, extrusion, microcapsules, sheets, pads, bags with dyes

Definitions

  • Embodiments of the present invention relate to a method of preparing a fluoropolymer electrophoretic microcapsule. Background technique
  • micro-gel type electrophoretic display is a new type of electrophoretic display technology developed by E-ink Corporation of the United States. Because this type of display uses the bistable display of the particles to display, and has the softness of the paper, and has good contrast, large viewing angle, and no background light source, it is called “electronic paper", also called bistable display. Or digital paper.
  • the principle of the microcapsule electrophoretic display is to use a microcapsule technique to coat a suspension containing a chromogenic dye and a white electrophoretic particle in a microcapsule, and then apply the microcapsule to a transparent conductive film to form a display device.
  • the electrode under the microcapsule is positively charged, the positively charged white electrophoretic particles stay on the visible side of the microcapsule to form a white page.
  • the electrode under the microcapsule is negatively charged, the particles are pulled to the other side, leaving a page showing the chromogenic dye.
  • white letters can be produced on the background.
  • Barrett Comiske et al. firstly used urea-formaldehyde resin microcapsules to carry out the electrophoresis floating liquid.
  • the microcapsules produced under the method have excellent mechanical strength, but have poor flexibility.
  • the wall is brittle and not resistant to scratching and pressing.
  • microcapsule of the gum arabic system is used in the preparation method of electrophoretic display.
  • the microcapsule prepared by the method has good flexibility, but has poor thermal stability and low application range. Summary of the invention
  • Embodiments of the present invention provide a method for preparing a fluoropolymer electrophoretic microcapsule to overcome the deficiencies of the prior art and to improve the mechanical properties, solvent corrosion resistance and tensile strength of the crevice wall.
  • An aspect of the present invention provides a method for preparing a fluoropolymer electrophoresis microcapsule, comprising: completely dissolving a polyhydric alcohol in a solvent; and adding a polyisocyanate to the polypolyol solution to form a cooling solution a prepolymer; mixing the prepolymer solution with the core solution, heating and stirring; adding the prepolymer and the core solution mixed solution to the aqueous solution containing the emulsifier, and performing the emulsification
  • the reaction is carried out by adding a fluorine-containing chain extender or a crosslinking agent to obtain a desired gum.
  • the preparation method of the fluoropolymer electrophoresis microcapsule provided by the embodiment of the invention in the process of preparing the electrophoresis microcapsule, adding fluorine-containing organic molecules or polymers, and introducing fluorine into the wall material by cross-linking,
  • the heat resistance, chemical resistance, durability and weather resistance of the electrophoretic microcapsules are improved.
  • the microcapsule mechanical properties, solvent corrosion resistance and tensile strength are improved; therefore, a stable, sealed, uniform particle size distribution and fast response electrophoresis microcapsule can be prepared.
  • FIG. 1 is a flow chart of a method for preparing a fluoropolymer electrophoresis microcapsule provided in the first embodiment
  • FIG. 2 is a flow chart showing a preferred method for preparing a fluoropolymer electrophoresis microcapsule provided in the second embodiment.
  • Embodiment 1 of the present invention provides a method for preparing a fluoropolymer electrophoresis microcapsule. As shown in Figure 1, the following steps are included: 5101. The polyhydric alcohol is completely dissolved in a solvent.
  • the polyhydric alcohol refers to an alcohol polymer containing a plurality of hydroxyl functional groups, including polyethylene glycol, polypropylene glycol, and polyether polyol, polyester polyol, and halogen-containing polyol.
  • a polar organic solvent in which the polyhydric alcohol can be completely dissolved such as acetone, an alcohol, a chlorinating agent and the like.
  • the chlorinating agent is a solvent containing a chlorine atom, and is mainly an alkane such as monochlorosilane, trichlorodecane, monochloroethane or the like.
  • a polyisocyanate having a mass fraction of 0.5 to 10% is added to the polyhydric alcohol solution obtained in the above step, and the molar ratio of the polyisocyanate to the polypolyol is controlled to be 3:1 to 1:1.
  • the catalyst is heated to 40 ⁇ 60 ° C for 1 to 3 hours to form a prepolymer.
  • the polyisocyanate may be added to the polypolyol solution by a water bath cooling method to form a prepolymer, which is cooled to bring the temperature to room temperature.
  • the polyisocyanate includes isophorone diisocyanate, toluene diisocyanate, 4,4'-diphenyldecane diisocyanate.
  • the catalyst may be an organotin, a quaternary ammonium salt, an alkali metal salt of a carboxylic acid or the like which can be used as a catalyst for catalytically synthesizing polyurethane.
  • the temperature of the reaction system in the previous step is lowered to room temperature, and the prepolymer is taken out, and the prepolymer solution and the core solution are uniformly mixed according to a volume ratio of 1 to 40:1, and heated and stirred.
  • the temperature of the upper reaction body can be lowered to room temperature by means of a water bath or the like, and the temperature condition of about 20 ° C (18 to 25 ° C) at room temperature does not mean any room temperature condition.
  • the core solution described in the embodiment of the present invention may be prepared as needed before preparing the crucible wall, and the core solution is a system in which the crucible wall is wrapped, including electrophoretic particles, solvent and dissolution.
  • the dye molecules therein also include some additives such as charge control agents, dispersants and the like.
  • the core solution mainly comprises a dispersion and a colorant particle, wherein the dispersion mainly comprises a halogen-substituted alkane, a hydrocarbon, a silane.
  • the dispersion is a liquid comprising the above-mentioned single component, and also includes a liquid in which the above two or more components are compounded.
  • the charge control agent may be an organic sulfate or sulfonate, a metal soap, an organic guanamine, an organophosphate or a lysine, or a charge control polymer and a monomer thereof;
  • the stabilizer is a hindrance
  • the agglomeration and deposition of electrophoretic particles mainly relying on the solvation film formed by the hydrophobic chain of the surfactant adsorbed on the surface of the electrophoretic particles, including: long-chain alkyl silane, acid cool, aluminum or vinyl coupling agent, etc.
  • triisostearate octyl isopropyl acid tridecyl hydrazide isopropyl acid
  • alkyl acetoacetic acid cool aluminum diisopropyl acid cool, vinyl trimethoxy silane and the like.
  • the colorant particles in this embodiment may be organic or inorganic pigments such as titanium dioxide, oxidized, black pigment carbon black, aniline black, etc., and may also be colored pigments including red, blue, brown, green, and the like.
  • the colorant particles in this embodiment may also be a dye.
  • the dyes used generally select azo, onion and triaryl decane dyes, which may be black dyes, fluorescent dyes, photosensitizing dyes, etc., including azo dyes, oil red, Sudan red and Sudan black series; Dissolved blue, Macrolex Blue series; triaryl decane dye, malachite green, crystal violet, etc.
  • the emulsifier may be sodium lauryl sulfate or a conventional emulsifier such as Span-80 (sorbitol oleate).
  • the fluorine-containing chain extender or crosslinking agent includes a fluorine, difluoro, trifluoro or even perfluoro-substituted polyol or amine, such as fluorine-substituted ethylene glycol, 1,4-butanediol, and glycerin. Ethylenediamine, benzodiazepinediamine, diethanolamine, and the like.
  • the method for preparing a fluoropolymer electrophoresis microcapsule according to the first embodiment of the present invention in the process of preparing an electrophoretic microcapsule, adding a fluorine-containing chain extender or a crosslinking agent, and introducing fluorine into the wall material by crosslinking
  • the heat resistance, chemical resistance, durability and weather resistance of the electrophoretic microcapsules are improved. Compared with the prior art, it improves the mechanical properties, solvent corrosion resistance and tensile strength of the microcapsules; therefore, it is possible to prepare a stable, sealed, uniform particle size distribution and fast response electrophoresis microcapsule.
  • Embodiment 2 of the present invention provides a preferred method for preparing a fluoropolymer electrophoretic microcapsule. As shown in Figure 2, the following steps are included:
  • the temperature of the reaction system in the previous step is lowered to room temperature, and the polyurethane prepolymer is taken out, and the polyurethane prepolymer solution and the core solution prepared in step S201 are uniformly mixed according to a volume ratio of 1 to 40:1, and heated and stirred.
  • the temperature of the upper reaction body can be lowered to room temperature by means of a water bath or the like, and the temperature condition of about 20 ° C (18 to 25 ° C) at room temperature does not mean any room temperature condition.
  • the fluorine-containing chain extender perfluoroethylene glycol is added to the emulsified microcapsule solution, and the reaction is carried out at 60 ° C for 2 hours to obtain the desired capsule.
  • the fluoropolymer electrophoresis microcapsule preparation method provided by the second embodiment of the invention introduces fluorine into the rubber wall material by cross-linking, thereby improving the heat resistance, chemical corrosion resistance and durability of the electrophoresis micro-adhesive. Sex and weather resistance. Compared with the prior art, the mechanical properties, solvent corrosion resistance and tensile strength of the microcapsules are improved; therefore, a stable, sealed, uniform particle size distribution and fast response electrophoresis microcapsules can be prepared. In addition, the preparation method is simple in operation, low in cost, and can be used for industrial production.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)

Abstract

提供了一种含氟聚合物电泳微胶囊制备方法,通过交联作用将氟引入到囊壁材料中,该制备方法包括:将聚多元醇完全溶解在溶剂中;在冷却的情况下,将多异氰酸酯加入所述聚多元醇溶液中,生成预聚体;将所述预聚体溶液与囊芯溶液混合均匀,加热搅拌;将所述预聚体与囊芯溶液混合溶液加入到含乳化剂的水溶液中,进行乳化作用;加入含氟扩链剂或交联剂以进行反应,得到所需胶囊。

Description

含氟聚合物电泳微胶嚢制备方法 技术领域
本发明的实施例涉及含氟聚合物电泳微胶嚢制备方法。 背景技术
微胶嚢型电泳显示器是由美国 E-ink公司开发出一种新型电泳显示技术。 由于这类显示器利用微粒的双稳态实现显示, 并且具有纸的柔软性, 且对比 好、 可视角度大、 不需背景光源, 所以被形象的称为 "电子纸" , 也叫双稳 显示器或数字纸。
微胶嚢型电泳显示的原理是利用微胶嚢技术, 在微胶嚢中包裹含有显色 染料和白色电泳粒子的悬浮液, 再将微胶嚢涂布在透明的导电薄膜上组成显 示器件。 当微胶嚢下方的电极带正电荷时, 带正电的白色电泳粒子停留在微 胶嚢的可见一侧,形成一张白色的页面。而当微胶嚢下方的电极带负电荷时, 就将这些粒子拉到另一侧, 留下一张显示显色染料的页面。 通过控制电极板 的电场方向就能在背景上产生白色的字母。
在制备微胶嚢过程中, Barrett Comiske等首先利用脲醛树脂微胶嚢暴风 电泳浮液, 在该方法之下所生产的该型微胶嚢具有优良的机械强度, 但是又 存在柔韧性较差, 嚢壁较脆不耐刮、压等问题。 Nakamura等叙述了一种明胶
-阿拉伯胶体系的微胶嚢用于电泳显示的制备方法,该方法所制的微胶嚢有良 好的柔韧性, 但是热稳定性较差, 应用范围低。 发明内容
本发明的实施例提供含氟聚合物电泳微胶嚢制备方法, 以克服现有技术 不足, 提高嚢壁的机械性能、 耐溶剂腐蚀性能和抗张强度。
本发明的一方面提供一种含氟聚合物电泳微胶嚢制备方法, 包括: 将聚 多元醇完全溶解在溶剂中; 在冷却的情况下, 将多异氰酸酯加入所述聚多元 醇溶液中, 生成预聚体; 将所述预聚体溶液与嚢芯溶液混合均勾,加热搅拌; 将所述预聚体与嚢芯溶液混合溶液加入到含乳化剂的水溶液中, 进行乳化作 用; 加入含氟扩链剂或交联剂以进行反应, 得到所需胶嚢。
本发明实施例提供的含氟聚合物电泳微胶嚢制备方法, 在制备电泳微胶 嚢的过程中, 加入含氟的有机分子或高分子, 通过交联作用将氟引入到嚢壁 材料中, 提高了电泳微胶嚢的耐热性、 耐化学腐蚀性、 耐久性和耐候性。 与 现有技术相比, 改善微胶嚢机械性能、 耐溶剂腐蚀性能和抗张强度; 因此可 以制备出稳定的、 密封的、 粒径分布均匀、 能快速响应的电泳微胶嚢。 附图说明
为了更清楚地说明本发明实施例的技术方案, 下面将对实施例的附图作 简单地介绍,显而易见地,下面描述中的附图仅仅涉及本发明的一些实施例, 而非对本发明的限制。
图 1为实施例一提供的一种含氟聚合物电泳微胶嚢制备方法的流程图; 图 2为实施例二提供的一种优选的含氟聚合物电泳微胶嚢制备方法的流 程图。 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本发 明实施例的附图,对本发明实施例的技术方案进行清楚、 完整地描述。显然, 所描述的实施例是本发明的一部分实施例, 而不是全部的实施例。 基于所描 述的本发明的实施例, 本领域普通技术人员在无需创造性劳动的前提下所获 得的所有其他实施例, 都属于本发明保护的范围。
除非另作定义, 此处使用的技术术语或者科学术语应当为本发明所属领 域内具有一般技能的人士所理解的通常意义。 "一个" 或者 "一" 等类似词 语也不表示数量限制, 而是表示存在至少一个。 "包括" 或者 "包含" 等类 似的词语意指出现在 "包括" 或者 "包含" 前面的元件或者物件涵盖出现在 "包括" 或者 "包含" 后面列举的元件或者物件及其等同, 并不排除其他元 件或者物件。
实施例一
本发明的实施例一提供了一种含氟聚合物电泳微胶嚢制备方法。 如图 1 所示, 包括以下步骤: 5101、 将聚多元醇完全溶解在溶剂中。
具体的, 该聚多元醇是指含有多个羟基官能团的醇聚合物, 包括聚乙二 醇, 聚丙二醇以及聚醚多元醇、 聚酯多元醇、 含卤素多元醇。
在本发明实施例中, 选择聚多元醇能够完全溶解的极性有机溶剂, 例如 丙酮、 醇和氯化剂等。 氯化剂是含有氯原子的溶剂, 主要是烷烃类, 如一氯 曱烷, 三氯曱烷, 一氯乙烷等。
5102、在冷却的情况下, 将质量分数为 0.5~10%的多异氰酸酯加入上步 得到的聚多元醇溶液中,控制多异氰酸酯与聚多元醇的摩尔比为 3:1~1 :1 ,加 入催化剂, 将温度升至 40~60°C反应 1~3小时, 生成预聚体。
可选的, 可以釆用水浴冷却的方法将多异氰酸酯加入所述聚多元醇溶液 中, 生成预聚体, 冷却使得温度达到室温即可。
该多异氰酸酯包括异佛尔酮二异氰酸酯、 曱苯二异氰酸酯、 4,4'-二苯基 曱烷二异氰酸酯。
该催化剂可以是有机锡类、 季铵盐类、 羧酸的碱金属盐等可以用作催化 合成聚氨酯的催化剂。
5103、 将上步反应体系温度降至室温, 取出所述预聚体, 将所述预聚体 溶液与嚢芯溶液按照体积比为 1~40:1比例混合均匀, 加热搅拌。
其中, 可以釆用水浴等方式, 将上步反应体的温度降到室温, 所述室温 约 20°C左右 (18 ~ 25°C)的温度条件, 并非指任何室温条件。
在本发明实施例中所述的嚢芯溶液可以是在制备嚢壁之前, 根据需要制 备好备用的,所述嚢芯溶液是被嚢壁包裹在其中的体系,其中包括电泳粒子, 溶剂以及溶解在其中的染料分子,还包括电荷控制剂,分散剂等等一些助剂。 所述嚢芯溶液主要是包括分散体和着色剂颗粒, 其中, 分散体主要包括卤取 代烷烃、 烃类、 硅烷类。 如 1¾取代烷烃类的四氟二溴乙烷, 四氯乙烯, 三氟 乙烯, 1,2,4-三氯苯, 四氯化碳; 烃类的十二烷, 十四烷, 脂肪族烃系列; 硅 氧烷类的癸烷基硅氧烷和高分子量环硅氧烷,多酚基硅氧烷,庚基硅氧烷等。 该分散体即包括以上提到的单一组分的液体, 也包括上述两种及两种以上组 分复配的液体。此外, 该分散体中还包括其它助剂如电荷控制剂、稳定剂等。 其中, 电荷控制剂可以是有机硫酸盐或磺酸盐、 金属皂、 有机酞胺、 有机磷 酸盐或碑酸酯、 还可以是起电荷控制作用的聚合物以及其单体; 稳定剂是阻 止电泳微粒的团聚和沉积, 主要依靠吸附在电泳粒子表面的表面活性剂疏水 链形成的溶剂化膜, 包括: 长链烷基的硅烷、 钦酸酷、 铝系或乙烯基系偶联 剂等, 如三异硬脂酞基钦酸异丙酷、 十三烷基横酞基钦酸异丙酷、 烷基乙酞 乙酸酷铝二异丙酸酷、 乙烯基三曱氧基硅烷等。
本实施例中的着色剂颗粒可以是有机或无机颜料,如二氧化钛、氧化辞, 黑色颜料炭黑、 苯胺黑等等, 还可以釆用彩色颜料包括红色、 蓝色、 褐色、 绿色等等。 本实施例中的着色剂颗粒也可以是染料。 所用到染料一般选择偶 氮、 葱醒和三芳曱烷类染料, 可以是黑染料、 荧光染料, 光敏染料等, 包括 偶氮染料, 油溶红、 苏丹红和苏丹黑系列; 葱醒染料, 油溶蓝, Macrolex Blue 系列; 三芳曱烷染料, 孔雀绿, 结晶紫等。
S 104、 将所述预聚体与嚢芯溶液混合溶液加入到含乳化剂的水溶液中, 进行乳化作用。
其中, 所述乳化剂可以使用十二烷基硫酸钠, 也可以使用 Span-80 (山 梨糖醇酐油酸酯)等常用的乳化剂。
S105、将含氟扩链剂或交联剂加入到乳化后的微胶嚢溶液中,在 50~70°C 下恒温反应 1~2小时, 即可得到所需胶嚢。
具体的, 该含氟扩链剂或交联剂包括一氟、 二氟、 三氟甚至全氟取代的 多元醇或胺类, 如氟取代的乙二醇、 1,4-丁二醇、 甘油乙二胺、 苯二曱基二 胺、 二乙醇胺等。
本发明实施例一提供的含氟聚合物电泳微胶嚢制备方法, 在制备电泳微 胶嚢的过程中, 加入含氟扩链剂或交联剂, 通过交联作用将氟引入到嚢壁材 料中, 提高了电泳微胶嚢的耐热性、 耐化学腐蚀性、 耐久性和耐候性。 与现 有技术相比, 改善微胶嚢机械性能、 耐溶剂腐蚀性能和抗张强度; 因此可以 制备出稳定的、 密封的、 粒径分布均匀、 能快速响应的电泳微胶嚢。
实施例二
本发明的实施例二提供了一种优选的含氟聚合物电泳微胶嚢制备方法。 如图 2所示, 包括以下步骤:
S201、 制备嚢芯溶液。 将 5g二氧化钛离子、 0.5g油溶蓝、 助剂等加入 到 300g四氟乙烯中, 于 45 °C下超声振荡使之成为均匀分散的电泳悬浮液, 备用。 5202、 将聚丙二醇(分子量为 300 )溶解在丙酮中。
5203、 在水浴来冷却的情况下, 将 2, 4-曱苯二异氰酸酯加入聚丙二醇 溶液中, 控制 2, 4-曱苯二异氰酸酯与聚丙二醇的摩尔比为 3:1 , 加入二月桂 酸二丁基锡, 使上述溶液与二月桂酸二丁基锡质量比为 200:1 , 将温度升至 60°C反应 1小时, 生成聚氨酯预聚体。
5204、 将上步反应体系温度降至室温, 取出聚氨酯预聚体, 将聚氨酯预 聚体溶液与 S201步制备好的嚢芯溶液按照体积比为 1~40:1比例混合均匀, 加热搅拌。
其中, 可以釆用水浴等方式, 将上步反应体的温度降到室温, 所述室温 约 20°C左右 (18 ~ 25°C)的温度条件, 并非指任何室温条件。
5205、 将聚氨酯预聚体与嚢芯溶液混合溶液加入到含十二烷基硫酸钠的 水溶液中, 形成水包油的乳浊液体系, 乳化到合适粒径的微胶嚢。
5206、 将含氟扩链剂全氟代乙二醇加入到乳化后的微胶嚢溶液中, 在 60°C下恒温反应 2小时, 即可得到所需胶嚢。
本发明实施例二提供的含氟聚合物电泳微胶嚢制备方法, 釆用交联作用 将氟引入到胶嚢壁材料中, 提高了电泳微胶嚢的耐热性、 耐化学腐蚀性、 耐 久性和耐候性。 与现有技术相比, 改善微胶嚢机械性能、 耐溶剂腐蚀性能和 抗张强度; 因此可以制备出稳定的、 密封的、 粒径分布均匀、 能快速响应的 电泳微胶嚢。 此外, 该制备方法操作简单, 成本低, 可用于工业化生产。
以上所述仅是本发明的示范性实施方式, 而非用于限制本发明的保护范 围, 本发明的保护范围由所附的权利要求确定。

Claims

权利要求书
1、 一种含氟聚合物电泳微胶嚢制备方法, 包括:
将聚多元醇完全溶解在溶剂中;
将多异氰酸酯加入所述聚多元醇溶液中, 生成预聚体;
将所述预聚体溶液与主要包括分散体和着色剂颗粒的嚢芯溶液混合均 匀, 加热搅拌;
将所述预聚体与嚢芯溶液混合溶液加入到含乳化剂的水溶液中, 进行乳 化作用;
加入含氟扩链剂或交联剂以进行反应, 得到所需胶嚢。
2、 根据权利要求 1所述的方法, 其中, 所述溶剂为丙酮、 醇和氯化剂。
3、根据权利要求 1所述的方法, 其中, 所述聚多元醇是含有多个羟基官 能团的醇聚合物。
4、根据权利要求 1所述的方法, 其中, 所述将多异氰酸酯加入所述聚多 元醇溶液中, 生成预聚体包括:
将质量分数为 0.5~10%的多异氰酸酯加入所述聚多元醇溶液中, 控制多 异氰酸酯与聚多元醇的摩尔比为 3:1~1 :1 , 加入催化剂, 将温度升至 40~60°C 反应 1-3小时, 生成预聚体。
5、根据权利要求 1或 3所述的方法, 其中, 所述多异氰酸酯包括异佛尔 酮二异氰酸酯、 曱苯二异氰酸酯、 4,4'-二苯基曱烷二异氰酸酯。
6、根据权利要求 1所述的方法, 其中, 所述将所述预聚体溶液与嚢芯溶 液混合均匀包括:
将所述预聚体溶液与嚢芯溶液按照体积比为 1~40:1比例混合均匀。
7、 根据权利要求 1所述的方法, 其中, 所述加入含氟扩链剂或交联剂, 反应, 得到所需胶嚢包括:
加入含氟扩链剂或交联剂, 在 50~70°C下恒温反应 1~2小时, 得到所需 胶嚢。
8、根据权利要求 1或 6所述的方法, 其中, 所述扩链剂或交联剂包括一 氟、 二氟、 三氟甚至全氟取代的多元醇或胺类。
9、根据权利要求 1所述的方法,其中所述分散体包括卤取代烷烃、烃类、 硅烷类中的一种或多种, 任选地包括电荷控制剂、 稳定剂中的一种或多种。
10、 根据权利要求 1所述的方法, 其中所述着色剂颗粒包括有机或无机 颜料, 或者染料。
11、 根据权利要求 1-10中任一项的方法制备的含氟聚合物电泳微胶嚢。
PCT/CN2012/085872 2012-01-16 2012-12-04 含氟聚合物电泳微胶囊制备方法 WO2013107226A1 (zh)

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