【摘要】 自吸附与表面润湿性的测量确定,油酸钠自水溶液在γ-Fe₃O₂上的吸附为多层吸附。第一层为化学吸附,油酸钠分子的碳氢链朝外,从而使质点表面憎水化。在高浓度时发生第二层吸附,油酸钠分子依靠碳氢链之间的相互作用吸附在第一吸附层上,使质点表面重新亲水化。质点表面的润湿性与其水相和非水相悬浮液的稳定性有直接的对应关系。更多还原

【Abstract】 Based on the experimental results of adsorption and wettability, it is concluded thatthe adsorption of sodium oleate on γ-Fe₂O₃ from aqueous solution is of multilayer. Themolecules in the first layer are chemisorbed with their hydrocarbon chains extendingoutward. At higher concentration the second adsorption layer forms and converts theparticle surface into hydrophilic again. The wettability of particle surface was found tobe related directly to the stability of bothe aqueous and nonaqueous suspensions.更多还原