透明聚碳酸酯（PC）航天面窗月尘粘附机制和电帘除尘

随着我国进入载人登月战略，月尘防护成为长期月面作业需解决的最大挑战之一。由流星、微陨石撞击、宇宙射线照射等形成的带静电月尘，会强烈黏附在暴露的透明航天面窗上，刮擦、刻蚀和涂层破环会直接造成视野破环、甚至会影响航天员生命。项目组前期已完成各类面窗的研制，本项目将利用中科院贵阳地球化学研究所提供的合成月尘，基于电帘除尘（EDS，Electrodynamic Dust Shields）理念，在曲面透明聚碳酸酯（PC）面窗表面上构筑系列的平行电极，施加交流电压（AC）产生电场行波，实现带电月尘在库仑力和介电泳力作用下除尘。项目将重点研究月尘与PC表面黏附接触力学行为；探索适合于PC特性的表面可嵌入电极材料（如银纳米线），构筑具有复杂曲面的透明电帘；研究月尘在交变电场中受力和跃迁机理，以及电帘除尘效率与耐久性等，目的是为我国航天面窗除尘技术提供一定的理论支撑和可行性解决方案。

With the launch of China's manned space mission to the moon, the dust problem has become one of the biggest challenges to be solved in long-term lunar surface operations. By meteor, micrometeorite impact, cosmic ray irradiation and so on the formation of charged lunar dust , strongly adhere to the exposed transparent spacesuit visors, physical wear and abrasion will directly cause obscuration, and even affect the lives of astronauts. In our early work, we have developed the various kinds of spacesuit visors. Using synthesized lunar dust (provided by the institute of geochemistry, Chinese academy of sciences of Guiyang), this project will base on the EDS (Electrodynamic Dust Shields) concept, build a series of parallel electrodes on the surface of transparent polycarbonate (PC) spacesuit visors. By applying AC power, charged lunar dust will undergo Coulomb force and electrophoresis force to be shifted away from the surface. This project will focus on the contact&adhesion mechanisms between lunar dust and PC surface. To explore the surface embeddable electrode materials (such as silver nanowires) suitable for PC characteristics, and to construct a transparent electric curtain with complex curved surface, this work will studies the levitation and transport mechanism of lunar dust in alternating electric field, as well as the dust mitigation efficiency and durability of electric curtain, etc., in order to provide certain theoretical support and feasible solution for dust mitigation technology of China's spacesuit visors.