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Method for preparing nano photoconductive particles

A light-guiding particle and nanotechnology, applied in the treatment of dyed low molecular organic compounds, dyed high molecular organic compounds, inks, etc., can solve the problems of poor dispersibility and compatibility, and achieve good heat resistance and dispersibility, Excellent texture, excellent optical diffusion effect

Inactive Publication Date: 2014-10-08
胡敏刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of poor dispersion and compatibility of traditional inorganic particles in light-guiding inks in the background technology, a method for preparing nano-light-guiding particles is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Under the action of ultrasonic stirring, take a 250 ml Erlenmeyer flask, add 5 grams of absolute ethanol, 8 grams of stearic acid, 8 grams of sodium hexametaphosphate, and 70 grams of titanium dioxide, and stir for 15 minutes at a stirring speed of 1500 rpm; continue to add honey 9 grams of wax was stirred for 15 minutes, and the average particle diameter of titanium dioxide was 30 nanometers. Finally, it is spray-dried and air-jet pulverized by an air-flow superfine powder mill.

Embodiment 2

[0023] Under the effect of ultrasonic stirring, take a 250 ml Erlenmeyer flask, add 10 grams of absolute ethanol, 5 grams of stearic acid, 10 grams of sodium tripolyphosphate, and 60 grams of zinc oxide, stir for 20 minutes, and the stirring speed is 1800 rpm; continue to add 15 grams of organic wax was stirred for 20 minutes, and the average particle diameter of zinc oxide was 40 nanometers. Finally, it is spray-dried and air-jet pulverized by an air-flow superfine powder mill.

Embodiment 3

[0025] Under the action of ultrasonic stirring, take a 250 ml Erlenmeyer flask, add 8 grams of absolute ethanol, 8 grams of stearic acid, 5 grams of sodium polyacrylate, and 72 grams of aluminum oxide, stir for 30 minutes, and the stirring speed is 2000 rpm; 5 grams of tetrafluoroethylene micropowder was stirred for 25 minutes, and the average particle diameter of aluminum oxide was 50 nanometers. Finally, it is spray-dried and air-jet pulverized by an air-flow superfine powder mill.

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Abstract

The invention discloses a method for preparing nano photoconductive particles. The method comprises the steps: (1) carrying out surface treatment on 60-80% (by mass percentage) of nano photoconductive powder for 15-30 minutes with 5-10% (by mass percentage) of anhydrous ethanol, 5-10% (by mass percentage) of stearic acid and 5-10% (by mass percentage) of coupling agent under the action of ultrasonic stirring; (2) continuing to add 5-15% (by mass percentage) of scratch resisting auxiliaries, and continuing to stir, so as to uniformly mix the nano photoconductive powder and the scratch resisting auxiliaries; and (3) carrying out spray drying, and carrying out airflow milling with an airflow ultrafine mill. The method has the advantages that the photoconductive particles have a light extinction effect, have unique slippery hand feel, particularly cannot absorb UV (Ultraviolet) and do not affect the energy absorption of a photoinitiator, and meanwhile, transparent and excellent texture and scratch and wear resisting effects are maintained; the photoconductive particles prepared by the method have good heat resistance and dispersity, are applicable to optical application products and can provide an excellent optical diffusion effect and good brightness performance.

Description

technical field [0001] The invention belongs to the technical field of light guide ink preparation, and in particular relates to a preparation method of nano light guide particles. Background technique [0002] The light guide plate is an important part of the backlight module in the liquid crystal panel. When using the light guide ink, the ink is printed into reflective points through screen printing technology, so that the point light source is converted into a surface light source, so that the entire light guide plate can emit light uniformly. Effect. The composition of the light guide ink will directly affect the quality of the light guide point, and the quality of the light guide point will directly affect the brightness uniformity of the light guide plate. [0003] The main problems of the currently used light-guiding inks are that the resulting light-guiding plates have low luminance and poor luminous uniformity, and at the same time, the solvents contained in the li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/03C09C3/08C09C3/10C09C1/36C09C1/04C09C1/40
Inventor 胡敏刚左士祥
Owner 胡敏刚
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