规整分级微纳结构粒子及超双疏表面特效场研究

In recent years, superamphiphobicity is becoming one of the most challenging issue in coating research because of its great potential in both scientific and industrial areas, such as no-loss liquid transportation, biomimetic surface, and antifouling. Here, we create superamphiphobic SiO2 particles with regular hierarchically micro- and nanoscale stuctures by unique gas phase self-assembly method. In this research, the relationship between topography and superamphiphobicity will be investigated by arranged periodically uniform size superamphiphobic particles as photonic crystal. The relationship between pore volume of hierarchical structures, adsorbed air amount and superamphiphobicity will be attempted to measure and analyze through N2 adsorption. And at the same time, we are also interested in finding the nature of liquid marbles and the relationship between liquid marbles and superamphiphobicity. We believe that based on the above investigations, the influence of hierarchical structure on surface wettability, characterization and regulation of superamphiphobic materials to obtain the superamphiphobic surface can be basically understand from microscopic aspect. The work provides a versatile strategy for further design and development of superamphiphobic surface towards various applications.

超双疏研究是液体无阻力流动，仿生，防污等研究领域中最具挑战性的课题之一。申请人在前期研究中通过自主开发的气相自组装法获得了具有规整微纳分级结构的超双疏二氧化硅粒子。本项目中，申请人将利用光子晶体制备手法，展开拓扑结构与超双疏表面特性相关性研究；以氮吸附比表面测试为手段，研究微纳分级结构粒子形成的孔体积-空气吸附特性-超双疏三者之间的构效关系；通过研究弹性液滴，阐明超双疏本质及相关性等一系列重要科学问题。申请人相信：展开上述研究工作，对于阐明微纳结构及拓扑结构对表面浸润性的构效关系，表征超双疏材料与性能的调控因素，从而在微纳米层面上理解超双疏表面特效场的诸性质，揭示固液气三相间表面张力的本质和特性，进而探索极寒气象条件下不需除冰即可紧急起飞的新型战机表面超双疏材料，构建只依靠落差或小推力即可推动高粘度石油长距离运输的超低阻力石油运输管道特种内壁材料等方面，是具有一定的学术价值和意义的。

超双疏研究是液体无阻力流动，仿生，防污等研究领域中最具挑战性的课题之一。申请人在前期研究中通过自主开发的气相自组装法获得了具有规整微纳分级结构的超双疏二氧化硅粒子。本项目中，申请人通过构建微纳分级结构制备了“串珠”型结构，获得超双疏性能表面，并首次提出使用界面下空气包理论研究固体表面下空气包分布状态；通过不同尺寸的SiO2空心/实心球构建超双疏表面，探讨通过无规纳米粒子堆积获得超双疏表面所需要的粒子尺寸条件。此外，通过纳米材料制备技术，通过精巧设计，使用无模板法制备获得多层核/壳结构。最后，通过材料浸润特性，制备获得超浸润微纳马达。展开上述研究工作，对于阐明微纳结构及拓扑结构对表面浸润性的构效关系，表征超双疏材料与性能的调控因素，从而在微纳米层面上理解超双疏表面特效场的诸性质，揭示固液气三相间表面张力的本质和特性，是具有一定的学术价值和意义的。