摘要
利用稳定性分析仪、光学显微镜、激光粒度分析仪、界面张力仪及流变仪研究驱油两亲聚合物及其分离组分的乳化规律及机制。结果表明:驱油两亲聚合物及其分离组分的分子结构相似,但疏水基团含量不同;大分子组分相比小分子组分界面活性较弱,形成乳化液的粒径较大,但其体系黏弹性更高,致使乳化液液滴迁移速率降低,稳定性增强;驱油两亲聚合物在不同组分的协同作用下,界面活性较高,形成乳化液的粒径最小,体系黏弹性适中且稳定,因此乳化液液滴的迁移速率最低,稳定性最高。
The emulsification and mechanism of an amphiphilic polymer and its separated components for oil displacement were studied by stability analyzer,opticle microscope,laser granulometer,interface tensiometer and rheometer. The results show that the molecular structures of the amphiphilic polymer and its different separated components are similar,but the con-tents of hydrophobic groups in different components are different. Compared with the small molecule component,the macro-molecule component has weaker interfacial activity and larger droplet size of emulsion. However,the droplet migration rate is lower due to its high viscoelasticity, which improvesthe stability of emulsion. Under the synergistic effect of different compo- nents,the amphiphilic polymer for oil displacement has strong interfacial activity and its emulsion has the smallest droplet size. And the viscoelasticity of the emulsion is moderate and stable, which caues the lowest droplet migration rate and highest stability of emulsion.
出处
《中国石油大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2017年第2期175-183,共9页
Journal of China University of Petroleum(Edition of Natural Science)
基金
国家自然科学基金项目(21273286)
教育部博士点基金项目(20130133110005)
关键词
两亲聚合物
分离组分
乳化
稳定性
迁移速率
黏弹性
amphiphilic polymer
separated component
emulsification
stability
migration rate
viscoelasticity
