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Preparation method of red electrophoresis liquid microcapsule

A technology of microcapsules and electrophoresis liquids, applied in microcapsule preparations, microsphere preparations, instruments, etc., can solve problems such as difficulty in large-scale industrial production, and achieve the effects of good suspension stability, short electric field response time and smooth surface

Inactive Publication Date: 2010-12-22
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

[0039] 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.

[0040] The preparation method of above-mentioned electrophoretic liquid is:

[0041] 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

[0049] 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:

[0050] 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 preparation method of a red electrophoresis liquid microcapsule. The red electrophoresis liquid microcapsule prepared by the method has the advantages of good dispersibility, uniform particle size distribution, sensitive electrical field response, quick and reversible bistable state characteristic, short electrical field response time, transparent capsule wall, good suspension stability, good color development effect, small particle size, complete shape, smooth surface, optical transparency, good mechanical strength and no adhesion among microcapsules. The method has easily controlled reaction conditions and is applicable to large-scale industrial production.

Description

[0001] This application is a divisional application of the invention patent application with the application number 200810216961.0, the title of the invention is "a red electrophoretic liquid and its preparation method and its microcapsule preparation method", and the application date is October 24, 2008. technical field [0002] 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 [0003] 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 i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/18G02F1/167
Inventor 倪卓
Owner SHENZHEN UNIV
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