石油化工高等学校学报2012，Vol.25Issue(2)：38-41,47,5.DOI:10.3969/j.issn.1006-396X.2012.02.009
大庆原油酸性组分界面膜扩张流变研究
Dilational Rheological Study of Interfacial Film Containing Acidic Components from Daqing Crude Oil
摘要
Abstract
The acidic components "were extracted from Daqing crude oil by using NaOH/EtOH mixed solution. The interfacial tension and dilational rheological properties were investigated at the kerosene-water interface by means of oscillating drop method. The. effects of oscillating frequency and bulk mass fraction on interfacial dilational properties were exploited. The results show that the acidic component molecules can easily adsorb onto the interface and greatly reduce interfacial tension. The interfacial dilational behaviors of acidic components are similar to those of surfactants. The modulus increased with increasing frequency and passed through a maximum with bulk concentration increasing, while phase angle increased with decreasing frequency or increasing concentration monotonieally. Morover, the modulus maximum of Daqing acidic components is about 45 mN/m, which is much higher than that of Shengli acidic components.关键词
大庆原油/酸性组分/界面/扩张流变Key words
Daqing crude oil/ Acidic components/ Interface/ Dilational rheology Corresponding author.分类
能源科技引用本文复制引用
王宇慧..大庆原油酸性组分界面膜扩张流变研究[J].石油化工高等学校学报,2012,25(2):38-41,47,5.基金项目
国家科技重大专项(2011ZX05011-004). （2011ZX05011-004）
