沉积法制备Fe_3O_4/P(AA-DVB)磁性复合微球  

Preparation of Fe_3O_4/ P(AA-DVB) magnetic composite microspheres by deposition method

作　　者：李毅[1] 张宝亮[2] 张和鹏[2] 张秋禹[2] 

机构地区：[1]中国核动力研究设计院,四川成都610000 [2]西北工业大学,陕西西安710072

出　　处：《现代化工》2015年第10期98-101,共4页Modern Chemical Industry

摘　　要：通过静电吸附与机械力共同作用的沉积法制备得到了Fe3O4／P（AA—DVB）磁性复合微球。分别采用无皂乳液聚合和共沉淀法制备得到单分散的P（AA—DVB）胶体粒子及Fe3O4纳米粒子，在静电吸附和机械力作用下，将Fe3O4纳米粒子附着并嵌入P（AA—DVB）胶体粒子表面及内部，制备得到Fe3O4／P（AA—DVB）磁性复合微球。该方法的优势在于最终磁性复合微球的粒径及粒径分布可以由前驱体P（AA—DVB）胶体粒子调控。磁性复合微球表面和内部R，q纳米粒子的分布及磁含量可以由机械力作用时间进行调节。所制备的Fe3O4／P（AA—DVB）磁性复合微球平均粒径为542nm，磁含量范围在11％-33％内可调。Fe3O4/P （AA-DVB） magnetic composite microspheres are prepared by deposition method with the interaction of electrostatic adsorption and mechanical force. Firstly, free-soap emulsion polymerization and coprecipitation are used for preparation of monodisperse P （AA-DVB） colloid particles and Fe3O4 nanoparticles, respectively. Then, Fe3O4 nanoparticles are adsorbed and embedded on the surface or into the inner of P（AA-DVB） colloid particles via the interaction of electrostatic adsorption and mechanical force. The advantage of this method is that the particle size and diameter distribution of magnetic microspheres can he controlled by adjusting the precursor colloid particles. The distribution of Fe3O4 nanoparticles and magnetic content of Fe3O4/P（AA-DVB） magnetic microspheres can be adjusted by the mechanical force action time. The average particle size of Fe3O4/P（AA-DVB） magnetic microspheres is 542 nm and the magnetic content range is 11% - 33%.

关 键 词：磁性复合微球 沉积法 无皂乳液聚合 静电吸附 机械力 

分 类 号：TQ584[化学工程—精细化工]