润滑液体注入的多孔表面在金属防腐蚀的应用进展

以猪笼草为仿生原型的润滑液体注入的多孔表面(SLIPS)是将润滑剂注入具有低表面能的粗糙多孔结构形成的超光滑表面。由于SLIPS润滑层优良的阻隔效果而在金属防腐蚀领域有较好的应用前景。介绍了SLIPS的构建机理并从基材直接结构化处理、原位生长和涂层处理3方面对SLIPS在金属表面的制备方法进行了归纳;对SLIPS在铝、铜、镁、钢4种不同金属表面的防腐蚀应用进行了综述;指出了应用于金属防腐蚀的SLIPS材料存在的不足并对其发展趋势进行了展望。

The Occurrence and Prevention of Filamentous Algae in Ecological Purification System of Micro-polluted Water

[ Objective ] The aim was to study the influence of filamentous algae on the process of water ecological purification. [ Method ] The occurrence mechanism of filamentous algae and its ecological system were summarized and analyzed. Considering the ecological purification in north- ern Jiangsu, the occurrence and prevention of filamentous algae in water, the method to prevent filamentous algae in polluted water was discussed. [ Result] The results showed that by measures of improving planting density, regular harvesting, and water flow state control before the filamentous algae blooming period, together with improving local pH value, light interference and ecological control during the blooming period, can effectively control the filamentous algae blooming. [ Condusion] The study of the happening mechanism of filamentous algae provided theoretical references and the technical basis in the work of filamentous algae prevention and control.