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表面活性剂在固/液界面上的吸附在多种应用中起重要作用,因而引起了广泛的兴趣.就已有的工作来看,对非离子型表面活性剂在固/液界面吸附的研究比对离子型表面活性剂所作的同类研究要少.其中绝大部分研究的是聚氧乙烯型表面活性剂,并且多数是用工业产品.它实际上是具有不同乙氧基聚合度或不同大小疏水基的混合物.这使得说明固/液界面吸附规律和机制更为困难.再者,聚氧乙烯型表面活性剂虽有应用广泛的优点,但因聚氧乙烯链可能采取伸展或不同程度卷曲的构型,也给理论研究带来附加的复杂因素.此外,对同一种结构确定的非离子型表面活性剂在各种吸附剂上吸附的系统研究还很少见.所以,我们选择亲水基和疏水基的组成和结构都确定的亚砜类化合物作一系列吸附研究.
The adsorption of surfactants at the solid / liquid interface has played an important role in many applications and has attracted a great deal of interest.On the basis of previous work, the adsorption of non-ionic surfactants at the solid / liquid interface Less research is done than ionic surfactants, most of which are polyoxyethylene surfactants and are mostly industrial products, which are actually polymers with different degrees of ethoxy polymerization or different sizes Hydrophobic group mixture, which makes it more difficult to explain the regularity and mechanism of the solid / liquid interface adsorption.Moreover, although polyoxyethylene type surfactants have many advantages, the polyoxyethylene chains may take stretch or different degrees of curling Structure, but also to the theoretical research to bring additional complex factors.In addition, the same structure of non-ionic surfactant adsorption on a variety of adsorbent system is still rare, so we choose hydrophilic A series of adsorption studies were carried out on the sulfoxides identified by their composition and structure.