以聚乙烯吡咯烷酮(PVP)为壁材,通过单凝聚法制备酞菁酮颜料纳米微胶囊。结果表明,PVP质量、分离剂的加入方式以及搅拌速度等工艺条件对微胶囊粒径和分散性有影响,其中较佳的制备条件为:芯壁比为1.07,分离剂Na_2SO_4按10 m L/min的速度加...以聚乙烯吡咯烷酮(PVP)为壁材,通过单凝聚法制备酞菁酮颜料纳米微胶囊。结果表明,PVP质量、分离剂的加入方式以及搅拌速度等工艺条件对微胶囊粒径和分散性有影响,其中较佳的制备条件为:芯壁比为1.07,分离剂Na_2SO_4按10 m L/min的速度加入,搅拌速度为1 000 r/min。此时,可以制得粒径分布窄,平均粒径小于100 nm的酞菁酮微胶囊,分散体系稳定性良好。展开更多
The nanometer cobalt blue pigments were prepared by microemulsion method. Using dynamic light scattering(DLS) test method, the influences of water content on the size of liquid drop of microemulsion and the liquid dro...The nanometer cobalt blue pigments were prepared by microemulsion method. Using dynamic light scattering(DLS) test method, the influences of water content on the size of liquid drop of microemulsion and the liquid drop of microemulsion on the final diameter of nanometer particle were studied in the course of preparation. Accordingly, the method to control the diameter of nanometer particle by changing water content was established. The nanometer cobalt blue particles were confirmed by XRD and TEM. Color parameters of pigments were determined. The quantum size effect of the pigments was discussed.展开更多
文摘The nanometer cobalt blue pigments were prepared by microemulsion method. Using dynamic light scattering(DLS) test method, the influences of water content on the size of liquid drop of microemulsion and the liquid drop of microemulsion on the final diameter of nanometer particle were studied in the course of preparation. Accordingly, the method to control the diameter of nanometer particle by changing water content was established. The nanometer cobalt blue particles were confirmed by XRD and TEM. Color parameters of pigments were determined. The quantum size effect of the pigments was discussed.
