张天永,张亚琴,韩明明 ,刘 流 ,王世荣 ,李祥高
AuthorsHTML:张天永 ^{1, 2, 3}，张亚琴 ^{1, 3}，韩明明 ¹ ，刘 流 ¹ ，王世荣 ^{1, 2, 3}，李祥高 ^{1, 2, 3}
AuthorsListE:Zhang Tianyong,Zhang Yaqin,Han Mingming,Liu Liu, Wang Shirong,Li Xianggao
AuthorsHTMLE:Zhang Tianyong^{1, 2, 3}，Zhang Yaqin^{1, 3}，Han Mingming¹，Liu Liu¹， Wang Shirong^{1, 2, 3}，Li Xianggao^{1, 2, 3}
Unit:1. 天津大学化工学院，天津 300354；
2. 天津化学化工协同创新中心，天津 300072；
3. 天津市功能精细化学品技术工程中心，天津 300354

Unit_EngLish:1. School of Chemical Engineering and Technology，Tianjin University，Tianjin 300354，China；
2. Collaborative Innovation Center of Chemical Science and Technology(Tianjin)，Tianjin 300072，China；
3. Tianjin Functional Fine Chemical Technology Engineering Center，Tianjin 300354，China

Abstract_Chinese:针对 Y-酞菁氧钛(Y-TiOPc)在 780 nm 有高的激光光谱响应，具有极低的暗电导率，良好的化学、光化学 及热稳定性而被广泛应用于高性能数码复印和激光打印机的光电导器件中，但存在溶剂诱导和机械力作用下晶型稳 定性差、在有机光导(OPC)器件涂布液的分散介质中易聚集沉淀，导致分散液稳定性差而使用寿命短、OPC 器件光 电导性能劣化、复印和打印质量降低等严重问题，在晶型调节制备 Y-TiOPc 纳米粒子的过程中，采用非离子表面活 性剂聚乙二醇(PEG)和司班 85(Span85)对其表面进行修饰．构建有效抑制溶剂诱导和机械力作用的分子保护层，系 统研究了修饰条件和修饰效果．结果表明：PEG 和 Span85 修饰后的纳米 Y-TiOPc 粒度减小，在丁酮、四氢呋喃介 质中机械球磨 4 h 以及在丁酮、四氢呋喃介质中作用 30 天的晶型稳定性显著改善，OPC 器件涂布液静置 60 天的光 透射率变化明显变小，分散稳定性显著改善，制备的 Y-TiOPc 的晶型转化率提高．用 2.0%(质量分数)PEG 修饰得 到粒径为 55.8 nm 的 Y-TiOPc，作为载流子产生材料制备的激光有机光电导器件显示了优异的光电导性能，V0＝ －796 V、Vr＝－27 V、Rd＝11 V/s、E1/2＝0.125 μJ/cm2 ．用 2.0%(质量分数)PEG 修饰的 Y-TiOPc 载流子产生层薄膜 的粗糙度明显降低，改善了膜的平整性．研究结果为工业化制备高性能纳米 Y-TiOPc 提供了一个简便可行的方法．
Abstract_English:Y-TiOPc has a high laser spectral response at 780 nm，low dark conductivity，and good chemical， photochemical，and thermal stabilities；it is also widely used in high-performance digital copying and laser printing. In the photoconductive device of the printer，Y-TiOPc has poor crystal stability under the effect of solvent-induced and mechanical forces and easily aggregates and precipitates in the dispersion medium of the coating liquid of the or ganic photoconductive(OPC)device，resulting in poor dispersion stability and serious problems，such as short service life，degraded photoconductive performance of OPC devices，and reduced copying and printing quality. In the process of preparing Y-TiOPc nanoparticles by adjusting its crystal form，the surface was modified with nonionic surfactants，that is，polyethylene glycol(PEG)and Span85. A molecular protective layer that effectively inhibits sol\u0002vent-induced and mechanical forces was constructed，and the modification conditions and effects were systematically investigated. Results showed that the particle size of the Y-TiOPc nanoparticles modified with PEG and Span85 is re\u0002duced. The mechanical stability of ball milling in butanone(MEK)and tetrahydrofuran(THF)media for 4 h and thedispersion stability in MEK and THF media for a period of 30 days are significantly improved. The change in the light transmittance of the cloth solution left to stand for 60 days was significantly reduced，the dispersion stability was significantly improved，and the conversion rate of the prepared Y-TiOPc crystal form was improved. When modified with 2.0%(mass fraction)PEG to obtain Y-TiOPc with a particle size of 55.8 nm，the laser OPC device prepared as a carrier generation material showed excellent photoconductive performance，with V0＝-796 V，Vr＝-27 V，Rd＝ 11 V/s，E1/2＝0.125 μJ/cm2 . The roughness of the Y-TiOPc carrier generation layer film modified with 2.0%(mass fraction)PEG is significantly reduced，and the flatness of the film is improved. This research provides a simple and feasible method for the industrial preparation of high-performance Y-TiOPc nanoparticles.
Keyword_Chinese:Y-酞菁氧钛；非离子表面活性剂；晶型稳定性；分散稳定性；光电导
Keywords_English:Y-TiOPc；nonionic surfactant；crystal form stability；dispersion stability；photoconductivity

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