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Preparation method of nanometer beta-form titanyl phthalocyanine

A technology of titanyl phthalocyanine and β crystal form, which is applied in the field of preparation of new nano-β crystal titanyl phthalocyanine, can solve the problems of cumbersome post-processing process, long ball milling method, long induction time, etc., and achieves cumbersome post-processing process. , The effect of long ball milling time and more loss of raw materials

Inactive Publication Date: 2013-08-14
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The solvent induction method needs to consume organic solvents, the induction time is long and the solvent will pollute the environment; the ball milling method not only needs organic solvents but also takes a long time, and the post-processing process is cumbersome

Method used

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  • Preparation method of nanometer beta-form titanyl phthalocyanine
  • Preparation method of nanometer beta-form titanyl phthalocyanine

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0022] (1) Prepare 1 g of TiOPc particles by vacuum freeze-drying and sol-gel method with the synthesized TiOPc;

[0023] (2) Put 1g of TiOPc particles into a tube furnace with a hydrogen atmosphere, raise it to 300°C at 15°C / min, and keep it warm for 1.5h;

[0024] (3) Quenching with liquid nitrogen to drop below 0°C instantaneously, to obtain β-TiOPc with an average particle size of about 89nm.

example 2

[0026] (1) Prepare 1 g of TiOPc particles by vacuum freeze-drying and sol-gel method with the synthesized TiOPc;

[0027] (2) Put 1g of TiOPc particles into a tube furnace with an argon atmosphere, raise it to 350°C at 15°C / min, and keep it warm for 1.5h;

[0028] (3) Quenching with liquid nitrogen to drop below 0°C instantaneously to obtain β-TiOPc with an average particle size of about 122nm.

[0029] like figure 1 The X-ray diffraction pattern of the nano-β-TiOPc prepared by shown example 2; figure 2 For adopting the photoelectric performance curve of the nanometer β-TiOPc that example 2 prepares

example 3

[0031] (1) Prepare 1 g of TiOPc particles by vacuum freeze-drying and sol-gel method with the synthesized TiOPc;

[0032] (2) Put 1g of TiOPc particles into a tube furnace with a hydrogen atmosphere, raise it to 375°C at 5°C / min, and keep it warm for 2.5h;

[0033] (3) Naturally cooling the temperature down to room temperature to obtain β-TiOPc with an average particle size of about 135 nm.

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Abstract

The invention relates to a preparation method of nanometer beta-form titanyl phthalocyanine. The preparation method comprises the steps of preparing TiOPc grains from synthetic TiOPc by vacuum freeze drying and a sol-gel method and carrying out insulated transformation on the TiOPc grains in an inert gas atmosphere and a reducing gas atmosphere, thus preparing beta-TiOPc, wherein the grain size of the crystal is 89-200nm. The preparation method has the advantages that defects of the traditional methods such as waste of organic solvents, long ball-milling time of prepared nanometer grains, tedious after-treatment processes, big raw material loss and the like are overcome; the nanometer beta-form titanyl phthalocyanine prepared by the insulated transformation method has regular crystal shape, uniform size and excellent photoelectric property; and the preparation method has simple preparation processes and is environment-friendly.

Description

technical field [0001] The invention relates to a preparation technology of a novel nano-β crystal phthalocyanine titanium oxide, and the prepared nano-β crystal phthalocyanine titanium oxide can be applied to the field of laser photoconductors. technical background [0002] Photoconductive material is an important information functional material, which has been widely used in office automation technology fields such as electrostatic copiers, electronic plate making, laser printing, and light printing in recent years. Compared with inorganic photoconductive materials, organic photoconductive (OPC) materials have the advantages of low cost, simple preparation, low toxicity, wide spectral sensitivity range, and the ability to optimize performance through structural design. With the development of optoelectronic technology, the requirements for imaging speed and imaging quality of photosensitive drums are getting higher and higher, and enhancing the photosensitive performance o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D487/22
Inventor 李祥高李战强王世荣肖殷
Owner TIANJIN UNIV
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