线性三嵌段共聚物自组装构建超亲水/超疏油表面及其油水分离机理研究

Direct dischadrge of oil-water mixture will lead to not only waste of resouces, but also serious environmental pollution. Oil-water separation method using superhydrophilic/superoleophobic mesh that is considered as a real solution for antioil-sticky, fast and efficient separation with low energy consumption and can meet the needs of modern petroleum industry is gradully attracting attention. In this project,the formation mechanism of micelle particles with differernt shapes from triblock copolymer containing hydrophilic and fluorinated POSS chains in selected solvents will be investigated. Based on this, superhydrophilic/superoleophobic mesh will be prepared by ordered alignment of strawberry-like micelle particles on the mesh surface. Oil-water seperation experiment of mixture with high water content will be carried out and the wetting behavior and separaion mechanism of oil and water will be explored to obtain the correlation law among chemical composition and structure characteristics of hydrophilic/oleophobic surface, hydromechanics behavior and oil-water separation efficiency. The success of research can develop the theory of oil-water separation and help to design and develop new type of oil-water separation filter with high performance.

油水混合物的直接排放不仅浪费资源，而且对环境也造成极大的危害。采用超亲水超疏油特性的网膜对油水混合物进行处理，被认为是一种能真正解决油粘滞问题、实现快速高效低能油水分离、满足现代石油工业需求的方法，已逐渐得到关注。本项目拟在探索含亲水链和氟化POSS链的三嵌段共聚物在选择性溶剂中聚集自组装形成多形态胶束粒子规律的基础上，利用三嵌段共聚物的草莓状胶束粒子溶液在具有微米孔道丝网上有序自组装构建超亲水超疏油分离网膜，并进行高含水率油水混合物的油水分离实验，探索油水混合物在超亲水超疏油网膜上的流体润湿行为及油水分离的机理，获得超亲水超疏油表面化学组成和形貌结构特征、流体润湿行为和油水分离效率三者之间的内在关联规律。该研究将极大地促进油水分离技术理论的发展，为新型快速高效油水分离网膜的设计与开发提供理论指导。

油水混合物的直接排放不仅浪费资源，而且对环境也造成极大的危害。采用超亲水超疏油特性的网膜对油水混合物进行处理，被认为是一种能真正解决油粘滞问题、实现快速高效低能油水分离、满足现代石油工业需求的方法，已逐渐得到关注。本项目研究了油水分离介质表面的超亲水-超疏油复合多尺度结构的构建及对油水混合物的分离作用规律，首先探索含亲水链和氟化POSS链的线性双亲性三元嵌段共聚物在选择性溶剂中聚集自组装形成多形态胶束粒子和构建超润湿表面的规律，在此基础上，在过滤介质如棉布和滤网上构建了系列超润湿界面，并利用这些界面系统进行普通油水混合物的分离和乳化油水混合物的破乳与分离实验，探索了油水混合物在超亲水超疏油网膜上的流体润湿行为及油水分离的机理，获得超亲水超疏油表面化学组成和形貌结构特征、流体润湿行为和油水分离效率三者之间的内在关联规律，为新型快速高效油水分离网膜的设计与开发提供理论指导。