高等学校化学学报2018，Vol.39Issue(3)：583-590,8.DOI:10.7503/cjcu20170469
多层组装磁性聚合物复合微球调剖剂的制备及性能
Preparation and Performance of Magnetic Polymer-composite Microspheres Profile Control Agent by Multilayer Assembly
摘要
Abstract
The magnetic gel microspheres P(AA-AM-AN)/Fe3O4 were prepared by inverse emulsion polymerization and precipitation polymerization using iron oxide(Fe3O4), acrylamide(AM), acrylic acid (AA)and acrylonitrile(AN)as raw materials. The P(AA-AM-AN)/Fe3O4 were characterized by scanning electron microscopy(SEM), Fourier transform infrared spectroscopy(FTIR)and vibrating sample magnetometer(VSM). At the same time, The water-absorption performance of the magnetic profile control agents were studied under different preparation conditions and the profile control performance was discussed under simulated stratum environment condition. The experimental results show that the P(AA-AM-AN)/Fe3O4 magnetic composite microspheres were prepared,the microspheres have superparamagnetism, and can realize magnetic separation and recovery. The prepared microspheres have good transport properties due to the presence of hydrophobic polyacrylonitrile. The water-absorption performance of the magnetic gel microspheres is superior to others when the mass ratio of AN and P(AA-AM)/Fe3O4 is 1.25: 1, or rather, the water absorption rate is as high as 82.8 g/g. Besides,the water absorption rate of the magnetic gel microspheres was gradually increased with the increase of the water temperature of reservoir formation,and the decrease of NaCl content.关键词
调剖剂/吸水倍率/磁性聚合物复合微球Key words
Profile control agent/Water absorption rate/Magnetic polymer-composite microsphere分类
化学化工引用本文复制引用
张定军,白雪,陈玉娴,吴彦飞,李宪文,陈振斌,马应霞..多层组装磁性聚合物复合微球调剖剂的制备及性能[J].高等学校化学学报,2018,39(3):583-590,8.基金项目
国家自然科学基金(批准号:51663013)资助.Supported by the National Natural Science Foundation of China(No.51663013). （批准号:51663013）
