摘要
介绍了通过测定纯水及醇水溶液在二醋酸纤维素（ＣＡ）膜上的接触角计算溶质在固－液界面的吸附量。结果表明：（１）醇在固－液界面上是负吸附；（２）醇的吸附量与摩尔质量及分子结构有关；（３）可用溶质（醇）界面吸附量预测膜的反渗透分离性能。
The contact angles of pure water and aqueous alcohols at the surface of CA membranehave been measured. The adsorption alcohols at the solution-membrane interface have also been calculated. The results show that: (1) the adsorption amounts of alcohols are negstive; (2) the adsorptionamount of alcohol is effected by molecular weight and molecular structured and (3) it is possible to predict the membrane performance in reverse osmosis separation by means of the adsorption amount of solutes (alcohols) at the interface of membrane-water solution.
基金
江苏省自然科学基金
