Interfacial Behavior of Binary Blends of Polymeric Suspending Agents

详细信息    查看全文

• 作者：Esteban Francisco Marques-Riquelme ; Sabina Noiralih Cabarca ; Zulema Parra ; and Emily Chá ; vez
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2006
• 出版时间：January 18, 2006
• 年：2006
• 卷：45
• 期：2
• 页码：634 - 641
• 全文大小：126K
• 年卷期：v.45,no.2(January 18, 2006)
• ISSN：1520-5045

文摘

A series of experiments was performed to measure the interfacial tension of organic solvent/aqueous solutionsof binary blends of suspension-agent systems. The experimental data was modeled with the nonideal adsorbedsolution (NAS) model developed by Siddiqui and Franses, which considers interactions between the suspensionagents. The interaction parameters of the model were estimated with a custom-designed numerical algorithm.The estimated interaction parameters reflect the differences in chemical structure of the blends of suspensionagents. The NAS model accurately represents the effect of blends of suspension agents in different ratios andtotal concentrations on the interfacial tension. It was shown how Langmuir isotherms and the NAS modelcan be used to interpret and understand the behavior of organic solvents/water suspensions protected bysuspension agents in combination with a surface-active-agent mass balance, how blends of suspension agentsinteract in the interface, and the effects of such interactions.