INTERACTION FORCES BETWEEN HYDROPHILIC SURFACES IN ELECTROLYTE DMSO SOLUTION MEASURED BY AFM
作者单位：Department of Chemical Engineering Kyoto University Kyoto 606-8501 Japan
会议名称：《第二届中日化工学术研讨会》
会议日期：2002年
学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
关 键 词：AFM DMSO Adhesive force Structured layer
摘 要：The experimental measurements of the forces acting on silica-mica surfaces immersed in lithium chloride DMSO solutions were performed using an atom force microscopy (AFM) . Various force curves were obtained by changing the ionic concentration, the radius of curvature of surfaces and approaching velocity of two surfaces. It is found that there exist two kinds of structured layers on the surface;the thin but firm primary layer composed of DMSO molecules, ions and solvated ions adsorbed on the surface, and the thick but fragile secondary layer outside the primary layer.