多点亲和聚合修饰高磁饱和强度磁流体的性能研究  

Study on preparation of high magnetic saturation strength magnetic fluid by multi-point affinity polymerization modification

作　　者：黄波[1] 布和巴特尔 张晓臣[1] 李鹏[1] 迟佳龙 HUANG Bo;BUHE Bateer;ZHANG Xiao-chen;LI Peng;CHI Jia-long(Instiute of Advanced Technology,Heilongjiang Academy of Sciences,Harbin 150078,China;College of Materialsand Chemical Engineering,Heilongjiang Institute of Technology,Harbin 150050,China)

机构地区：[1]黑龙江省科学院高技术研究院,黑龙江哈尔滨150078 [2]黑龙江工程学院材料与化学工程学院,黑龙江哈尔滨150050

出　　处：《化学工程师》2024年第3期1-5,10,共6页Chemical Engineer

基　　金：黑龙江省省属科研院所科研业务费项目(ZNBZ2022GJS02)。

摘　　要：以有机铁为原料、有机碱为反应剂、N-甲基吡咯烷酮为反应溶剂制备纳米Fe_(3)O_(4)磁性颗粒,并对磁粉进行共聚物表面改性,以使磁粉在高磁粉含量条件下仍可均匀稳定地与癸烯均聚体基载液形成磁流体体系。采用振动样品磁强计、透射电镜、激光粒度仪、Zeta电位仪、红外光谱仪等对磁粉进行表征与分析,并对癸烯均聚体基磁性流体的稳定性进行分析。结果发现,经表面共聚物修饰的磁粉所制备的磁性流体在外加1.2T磁场作用下1400h后仍未产生磁液分离现象,磁饱和强度达到700GS以上。Magnetic nanoparticles of Fe_(3)O_(4)were prepared by using organic iron as raw material,organic alkali as reactant,and N-methylpyrrolidin-2-one as reaction solvent,and the magnetic powder was modified with a copolymer.Thus,under high magnetic particle content conditions,the magnetic powder could still form a magnetic fluid system uniformly and stably with the decane homopolymer based carrier liquid.The magnetic powder was characterized and analyzed by vibrating sample magnetometer,transmission electron microscope,laser particle size analyzer,zeta potentiometer,infrared spectrometer,etc.and the stability of decane homopolymer based magnetic fluid.It was found that the magnetic fluid was analyzed prepared by the surface copolymer modified magnetic powder did not undergo magnetic-liquid separation after 1400 hours,and the magnetic saturation strength was over 700GS.

关 键 词：磁性流体 癸烯均聚体 多点亲和聚合修饰 高磁饱和强度 

分 类 号：TQ586.1[化学工程—精细化工]