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Preparation method and application of NPB-like hole transport functional material

A technology of hole transport and functional materials, applied in the field of preparation of hole transport functional materials, can solve the problems of thickness and uniformity of photoconductor drum performance, low practical value, complex process, etc. The effect of simple structure and simple process

Pending Publication Date: 2021-08-13
GUANGDONG LEPUTAI NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a preparation method and application of a NPB-like hole-transporting functional material, aiming to solve the problem that in the traditional organic photoconductive drum preparation process, each layer structure needs to be coated sequentially, and the thickness and uniformity of each layer have an impact on the performance of the photoconductive drum. All have a great influence, the process is complicated, the cost is high, and the practical value is low

Method used

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  • Preparation method and application of NPB-like hole transport functional material
  • Preparation method and application of NPB-like hole transport functional material
  • Preparation method and application of NPB-like hole transport functional material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Polycarbonate (PCZ-300) is dissolved in THF to form a film-forming agent solution with a mass concentration of 10%; get 500 grams of 10% PCZ-300 solution, add 5 grams of Y-type titanium phthalocyanine, and disperse evenly with a ball mill. Then add 30 grams of m-TPD and 10 grams of N,N'-[4-(trifluoromethoxy)phenyl]-pyromellitic acid diamine, fully stir and dissolve to form a coating solution; adopt dip coating method, Apply the coating solution on the surface of the aluminum base of φ24*L250mm, and dry it for 2 hours to obtain a single-layer organic photosensitive drum with a photosensitive layer thickness of 15 μm.

Embodiment 2

[0036] Polycarbonate (PCZ-300) is dissolved in THF to form a film-forming agent solution with a mass concentration of 10%; get 500 grams of 10% PCZ-300 solution, add 5 grams of Y-type titanium phthalocyanine, and disperse evenly with a ball mill. Then add 30 grams of m-TPD and 10 grams of N,N'-[4-(trifluoromethylthio)phenyl]-pyromellitic acid diamine, fully stir and dissolve to form a coating solution; adopt dip coating method, Apply the coating solution on the surface of the aluminum base of φ24*L250mm, and dry it for 2 hours to obtain a single-layer organic photosensitive drum with a photosensitive layer thickness of 15 μm.

Embodiment 3

[0038] Except that no electron transport material is used, all other steps are the same as in Example 1.

[0039] Table 1 is the photoelectric performance parameter table of the organic photosensitive drum device involved in the present invention:

[0040]

[0041]

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Abstract

The invention belongs to the technical field of organic photosensitive drums, and provides a preparation method and application of an NPB-like hole transport functional material. The NPB-like hole transport functional material comprises BTBF-DPA. The BTBF-DPA is used for an electronegative organic photoconductor drum of a laser printer. The preparation method comprises the following steps: T01, brominating benzothiophene with NBS to obtain a product A; T02, oxidizing the obtained product A with hydrogen peroxide to obtain a product B; T03, subjecting the obtained product A to a coupling reaction to obtain a product C; T04, subjecting the obtained product C to a diisobutylaluminium hydride reduction reaction to obtain a product D; T05, subjecting the obtained product D to an NBS bromination reaction to obtain a product E; T06: carrying out a ring closing reaction on the obtained product E to obtain a product F; T07, brominating the obtained product F through liquid bromine to obtain a product raw material; and T08: carrying out a Suzuki coupling reaction on the obtained product raw material to obtain the final product BTBF-DPA. The preparation method has the advantages of strict hierarchy, no need for sequential coating of a photosensitive drum structure, simple technical process, lower cost and high practical value.

Description

technical field [0001] The invention belongs to the field of organic photosensitive drums, in particular to a preparation method and application of a NPB-like hole-transporting functional material. Background technique [0002] The organic photoconductive drum is a core component used in laser printers and electrostatic copies based on the principle of electrostatic imaging. It is generally made of two layers of organic photoconductive materials coated on the surface of a conductive aluminum tube. The conductive aluminum tube is used as the base, and the organic photoconductive drum is in the The dark place is an insulator, and corona or contact charging can make its surface reach a certain potential (generally 600-800V positive or negative); when light of appropriate wavelength (such as 780nm laser) irradiates its surface, the photoconductive material generates Electron-hole pairs, under the action of an electric field, the holes or electrons are transported to the surface ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D495/04G03G5/06
CPCC07D495/04G03G5/0648
Inventor 孟鸿王江峰施明沈光夫邢星刘志军罗丰刘继锋羊辉
Owner GUANGDONG LEPUTAI NEW MATERIAL TECH
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