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Method for preparing single-layer electropositive organic photoconductor drum

An organic photoconductive drum and electropositive technology, applied in optics, electrography, instruments, etc., can solve the problems of long process, complex process conditions, ozone pollution, etc., and achieve the effects of low cost, high efficiency and simple process

Active Publication Date: 2011-02-02
中船汉光科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In general, the preparation of multi-layer structure OPC has long process, complex process conditions, difficult control of high yield, relatively low production efficiency, high total cost and other areas that need to be improved.
In addition, when using a negatively charged organic photoconductive drum, there are problems such as possible ozone (generated during charging) pollution and development instability to two-component toner (currently the main type of toner)

Method used

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  • Method for preparing single-layer electropositive organic photoconductor drum
  • Method for preparing single-layer electropositive organic photoconductor drum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: dissolving polycarbonate (PCZ-300) in THF to make mass percent concentration is 10% film-forming agent solution; Get 200 grams of 10% PCZ-300 solution, add 6 grams of X-type metal-free Phthalocyanine, disperse evenly with a ball mill; take another 300 grams of 10% PCZ-300 solution, add 12 grams of TPD-FCN and 32 grams of N-50, stir and dissolve; combine the two parts of the solution and stir evenly to obtain a coating solution; The coating solution is applied to the surface of the aluminum base of Φ24×L250 mm by dip coating, and after drying for 1.5 hours, a single-layer organic photoconductive drum with a photoconductive layer thickness of 15-20 μm is obtained. The photoelectric performance parameters are shown in Table 1.

Embodiment 2

[0012] Example 2: All the steps are the same as in Example 1 except that TPD-FCN is replaced by electron transport material TPD-CN. The photoelectric performance parameters are shown in Table 1.

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Abstract

The invention relates to a method for preparing a single-layer organic photoconductor drum. The method comprises the following steps of: (1) preparing an electronic transport material: performing hydroformylation on triphenylamine or 4-fluoro triphenylamine serving as an initiative material, performing condensation reaction on the initiative material and malononitrile, and performing oxidative coupling reaction on the initiative material and ferric chloride to obtain a target product, namely the electronic transport material; and (2) preparing a photoconductor drum: dissolving polycarbonate into tetrahydrofuran to obtain film forming agent solution, mixing X-type metal-free phthalocyanine, TPD-FCN, N-50 and the film forming agent solution, uniformly dispersing the mixed solution to prepare coating solution, forming a coated layer on the surface of an anode alumina substrate by a dip coating method, and drying the coated layer to obtain the single-layer organic photoconductor drum, wherein the X-type metal-free phthalocyanine is used as a charge generation material, N,N'-bis(3-methylphenyl)-N,N'-diphenyl-1,1'-biphenyl -4,4'-diamine is used as a hole transport material, and the TPD-FCN is used as the electronic transport material.

Description

technical field [0001] The invention relates to a preparation method of an organic photoconductive drum. Background technique [0002] The organic photoconductive drum is formed by coating an organic photoconductive material layer on a conductive aluminum substrate [K.Y.Law, Chemical Reviews, 93, 449-486 (1993)]. Its working process based on the principle of electrostatic imaging can be described as follows: organic photoconductive The drum is an insulator in the dark, and the surface can be charged to a certain potential by corona charging or contact charging (practical requirements for negative or positive electricity at a potential of 600-800V); when irradiated with light of an appropriate wavelength (such as 780nm laser), the photoconductive The material layer will generate hole-electron positive and negative charge pairs, and then transfer the positive or negative charge to the surface, neutralize the negative or positive charge on the original surface, and the charge o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G5/05G03G5/06G03G5/147
Inventor 杨联明汪学文李安洲苏电礼韩燕平
Owner 中船汉光科技股份有限公司