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Red electrophoresis liquid and preparing method thereof and preparing method of microcapsule thereof

A technology of electrophoretic fluid and microcapsules, which is applied in the direction of microcapsule preparation, preparation of microspheres, and treatment of dyed low-molecular organic compounds. short, smooth finish

Inactive Publication Date: 2009-04-15
SHENZHEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the orifice coagulation bath method is that it requires a special orifice device, which is not easy for large-scale industrial production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A red electrophoretic solution, which is composed of: 3 mg / ml of octadecylamine-modified permanent red F5R particles, 1.2 mg / ml of polyethylene wax, and 500 mL of styrene as a dispersion medium.

[0039] The preparation method of above-mentioned electrophoretic liquid is:

[0040] Dry 3.0000g of Everlasting Red F5R in an oven (85°C) for 2 hours, dissolve 450mg of octadecylamine in 80ml of absolute ethanol at room temperature, add the dried Everlasting Red F5R particles, and place it In a 250ml three-neck flask, disperse with ultrasonic wave for 60 minutes to make it evenly dispersed; then heat and reflux at 70°C for 2 hours, take an appropriate amount of distilled water, slowly pour the refluxed mixed solution into distilled water during the stirring process, and filter with suction. The filtrate was dried in a vacuum drying oven at a low temperature, and the drying temperature was controlled at 40 degrees Celsius to obtain octadecylamine-modified permanent red F5R.

...

Embodiment 2

[0048] A red electrophoretic solution, which is composed of: dihydrogenated tallow-based secondary amine modified permanent red F5R particles 3mg / ml, Span-80 stabilizer 1.2mg / ml, dispersion medium tetrafluoroethylene 500mL. The preparation method of above-mentioned electrophoretic liquid is:

[0049] Dry 3.0000g of Everlasting Red F5R in an oven (80°C) for 2 hours, dissolve 270mg of dihydrogenated tallow-based secondary amine in 60ml of absolute ethanol at room temperature, add the dried Everlasting Red F5R particles, Then put it in a 250ml three-neck flask, disperse it with ultrasonic wave for 45min to make it evenly dispersed; then heat and reflux at 70°C for 90min, take an appropriate amount of distilled water, and slowly pour the refluxed mixed solution into distilled water during the stirring process , filtered with suction, and dried the filtrate in a vacuum drying oven at a low temperature at a temperature of 40 degrees Celsius to obtain the modified permanent red F5R. ...

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Abstract

The invention aims at providing a red electrophoresis liquid, comprising permanent bordeaux F5R with the content being 2-4mg / ml, a charge control agent which is dehydrogenated tallow secondary amine with the content being 0.1-0.6mg / ml, a surface active agent span-80 or polyethylene wax with the content being 1-2mg / ml, and dispersive medium such as tetrachloroethylene or phenyl ethylene. The invention provides a method for preparing the red electrophoresis liquid. The red electrophoresis liquid microcapsule prepared by the method has good dispersivity, even granularity distribution, sensitive response on an electric field, and fast and reversible double steady-state characteristics, and the response time of the electric field is short. In addition, the red electrophoresis liquid microcapsule prepared by the method has transparent cystwall, good suspension stability and chromogenic effect, smaller grain diameter, integral shape, smooth surface, transparent optical property, good mechanical strength, and no conglutination between microcapsules. The method has easily controllable reaction conditions, which is suitable for large-scale manufacturing production.

Description

technical field [0001] The invention relates to the field of functional materials for flexographic displays, in particular to a red electrophoretic liquid and a preparation method thereof, and also to a method for preparing microcapsules with the red electrophoretic liquid. Background technique [0002] With the rapid development of electronic technology, electronic media has entered the world stage, especially the rise of the Internet, people's demand for portable information products, multimedia terminal display, large-screen TV, high-definition TV, and digital TV is increasing day by day. Microencapsulated electronic ink display technology has developed rapidly due to its superior characteristics such as ultra-low loss, wide viewing angle, high contrast and high portability. [0003] As a new generation of displays, flexible board displays have many excellent properties. Not only can they display large areas, but they are also ultra-thin, ultra-light, and have good readab...

Claims

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Application Information

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IPC IPC(8): G02F1/167C09B67/46C09C3/08B01J13/18
Inventor 倪卓
Owner SHENZHEN UNIV
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