Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for synthesizing micro-sphere used for electric paper by titanium dioxide or dye embedding method and application of micro-sphere used for electric paper in medium with low dielectric constant

A technology of electronic paper and embedding method, applied in instruments, optics, identification devices, etc., can solve the problems of heavy pigment ratio, environmental pollution, shortening the life of electrophoretic displays, etc.

Inactive Publication Date: 2010-06-02
BEIJING JIAOTONG UNIV
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1) Due to the large specific gravity of the pigment, the coated microcapsules will precipitate after a period of time, shortening the life of the electrophoretic display
[0004] 2) Generally, the mechanical strength of the microcapsule shell covering the pigment particle or the suspension of the pigment is relatively weak
[0007] 5) At present, most of the dispersion media used in electrophoretic suspensions in electronic paper are highly toxic solvents, such as toluene, xylene, etc., which cause certain pollution to the environment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for synthesizing micro-sphere used for electric paper by titanium dioxide or dye embedding method and application of micro-sphere used for electric paper in medium with low dielectric constant
  • Method for synthesizing micro-sphere used for electric paper by titanium dioxide or dye embedding method and application of micro-sphere used for electric paper in medium with low dielectric constant
  • Method for synthesizing micro-sphere used for electric paper by titanium dioxide or dye embedding method and application of micro-sphere used for electric paper in medium with low dielectric constant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0129] The method for synthesizing microspheres for electronic paper by dye embedding method includes the following steps:

[0130] 1) Selection of raw materials

[0131] ①Selection of core monomer: 10-20 parts of methyl methacrylate,

[0132] 10-20 parts of n-butyl methacrylate,

[0133] 3 to 5 parts of allyl methacrylate;

[0134] ②Dye selection: 0.1~1.0 parts of solvent yellow dye 19;

[0135] ③Selection of emulsifier: 0.1~0.8 parts of sodium lauryl sulfate;

[0136] ④Initiator selection: 0.1~0.8 parts of potassium peroxodisulfate;

[0137] ⑤Additives: 0.02~0.20 parts of sodium bicarbonate;

[0138] ⑥Deionized water: 60-100 parts;

[0139] 2) Dyeing of the core monomer: Dissolve 0.1 to 1.0 part of Solvent Yellow Dye 19 in 10 to 20 parts of methyl methacrylate, 10 to 20 parts of n-butyl methacrylate and 3 to 5 parts of allyl methacrylate In the monomer mixture of the ester, fully stir and dissolve it and filter to obtain the dyed monomer mixture, which is r...

Embodiment 2

[0159] The method for synthesizing microspheres for electronic paper by dye embedding method includes the following steps:

[0160] 1) Selection of raw materials

[0161] ①Selection of core monomers: 5-20 parts of methyl methacrylate, 5-20 parts of n-butyl acrylate,

[0162] 5-20 parts of divinylbenzene;

[0163] ② Dye selection: 0.1~1.0 parts of solvent red dye 109;

[0164] ③Selection of emulsifier: sodium lauryl sulfate 0.1~0.8 parts,

[0165] 0.1~0.8 parts of sodium dodecylbenzene sulfonate;

[0166] ④Initiator selection: 0.1~0.8 parts of potassium peroxodisulfate;

[0167] ⑤Additives: 0.02~0.20 parts of sodium bicarbonate;

[0168] ⑥Deionized water: 60-100 parts;

[0169] 2) Dyeing of the core monomer: Dissolve 0.1 to 1.0 part of solvent red dye 109 in 5 to 20 parts of methyl methacrylate, 5 to 20 parts of n-butyl acrylate and 5 to 20 parts of divinylbenzene monomer In the mixed solution, after fully stirring and dissolving, filter to obtain the dyed monom...

Embodiment 3

[0189] The method for synthesizing microspheres for electronic paper by dye embedding method includes the following steps:

[0190] 1) Selection of raw materials

[0191] ①Selection of core monomers: 5-20 parts of methyl methacrylate, 5-20 parts of n-butyl acrylate,

[0192] 5-20 parts of divinylbenzene, 5-20 parts of glycidyl methacrylate;

[0193] ② Dye selection: Solvent blue dye 35 0.1~1.0 parts;

[0194] ③Selection of emulsifier: 0.1~2.0 parts of sodium lauryl sulfate,

[0195] 0.1~2.0 parts of sodium dodecylbenzene sulfonate;

[0196] ④Initiator selection: 0.1~0.8 parts of potassium peroxodisulfate;

[0197] ⑤Additives: 0.12~0.60 parts of sodium bicarbonate;

[0198] ⑥Deionized water: 60-100 parts;

[0199] 2) Dyeing of the core monomer: Dissolve 0.1~1.0 part of solvent blue dye 35 in 5~20 parts of methyl methacrylate, 5~20 parts of n-butyl acrylate, 5~20 parts of divinylbenzene and 5~ In 20 parts of the monomer mixture of glycidyl methacrylate, fully sti...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for synthesizing microballoon of electronic paper via titanium oxide or dye investing method, and a relative application in the medium with low dielectric constant, while prior art generally dyes raw material, synthesizes inner core, synthesizes shell (the inner core has pyridinyl or epoxy at surface can eliminate shell), and ionizes outer shell of microballoon, to synthesize the microballoon of electronic paper. The inventive microballon prepared by titanium oxide or dye investing method can improve surface electric charge and activity, which further simplifies the process synthesizing different microcapsules and dying microballoon via different dyes. The invention provides a method for preparing organic colorful microballoon via microcapsule emulsion polymerization and preparing inorganic colorful microballoon via sol-gel method. The invention uses non-toxic solvent as electrophoresis medium to prepare electrophoresis solution, which can reduce VOC consumption and pollution.

Description

Technical field [0001] The present invention relates to a method for electronic paper microspheres and the application of electronic paper microspheres in media; in particular to a method for synthesizing electronic paper microspheres by titanium dioxide or dye embedding method and electronic paper microspheres in low dielectric constant Application in different media. Background technique [0002] At present, microcapsules used for electrophoresis are roughly divided into two types: powder and rotating ball. Their common feature is that pigment particles or pigment suspensions are used as the core, and the polymer is coated to synthesize core-shell particles. . These existing types of microcapsules have the following defects: [0003] 1) Due to the large specific gravity of the pigment, the coated microcapsules will settle after a period of time, which shortens the life of the electrophoretic display. [0004] 2) Generally, the mechanical strength of the microcapsule shell coveri...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08F2/00C08F2/44C08F2/22C08F26/06C08F12/00C08F20/10C08F20/44C08F18/08C08F14/04C08F8/00C08K3/22C08K3/36G09F9/37G02F1/167
Inventor 冯宇光黄世华滕枫
Owner BEIJING JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com