肺表面活性物质
胶体
色散(光学)
电导率
电阻率和电导率
表征(材料科学)
胶束
材料科学
体积热力学
化学
分析化学(期刊)
色谱法
化学工程
纳米技术
热力学
光学
物理
物理化学
工程类
量子力学
水溶液
作者
M. Moshkelani,M.C. Amiri
标识
DOI:10.1016/j.colsurfa.2007.10.034
摘要
Colloidal gas aphron (CGA) characterization demands further investigation for exploring its potential ability in separation processes. In this paper, both integrated and differentiated electrical conductivity (EC) of CGA dispersion was measured and compared with surfactant concentration. They confirm each other well. The range of concentration of anionic surfactant for producing CGA was chosen from below the critical micelle concentration (CMC) up to above it. EC technique results in differentiating three separate stages compared with two stages in conventional aphron drainage method. The experimental results show that EC data is a good indicator for probing and characterizing the CGA dispersion. The most interesting aspect of EC results is that EC data (an intensive property) follows fairly well the cumulative drainage volume (an extensive property).
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