The present day environmental issues demand a lot from scientists and engineers to keep the planet earth safe for its habitats. There were lot of attempts for developing efficient air and liquid filters as the demand increases with an utmost concern of present environmental situations. Thanks to its large surface area to volume ratio, polymer nanofibers and composites are found to be good substitute for conventional filters. As per the research and analysis data, filtration efficiency increases proportional to the reduction of the average diameter of the fibers. In this study, the most efficient electrospinning technology was adopted to prepare polycarbonate (PC) nanofiber mat which yields a very fine surface morphology. There are earlier researches and associated data available about the preparation of PC nanofibers but with average fiber diameter above 1000 nm. In this study, a systematic methodology was instigated to generate PC nanofibers with least average diameter of 90 nm without using any surfactants or salts. The most suitable solvents, solvent proportion, polymer concentration and electrospinning conditions for the formation of the fiber mat are discussed elaborately. PC fiber mat of least average diameter was proved to be highly efficient for particulate matter adsorption using a dust sampling analyzer.

中文翻译：

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一种制备具有过滤能力的聚碳酸酯纳米纤维垫的简便方法

当今的环境问题要求科学家和工程师做出很多努力来保护地球的栖息地安全。随着需求的增加以及对当前环境状况的最大关注，人们进行了很多尝试来开发高效的空气和液体过滤器。由于其较大的表面积与体积比，聚合物纳米纤维和复合材料被发现是传统过滤器的良好替代品。根据研究和分析数据，过滤效率的增加与纤维平均直径的减小成正比。在这项研究中，采用最有效的静电纺丝技术制备聚碳酸酯 (PC) 纳米纤维垫，该垫可产生非常精细的表面形态。有关于制备 PC 纳米纤维但平均纤维直径高于 1000 nm 的早期研究和相关数据。在这项研究中，采用系统的方法来生成最小平均直径为 90 nm 的 PC 纳米纤维，而不使用任何表面活性剂或盐。详细讨论了形成纤维毡的最合适的溶剂、溶剂比例、聚合物浓度和静电纺丝条件。使用粉尘取样分析仪证明，最小平均直径的 PC 纤维垫对颗粒物吸附非常有效。详细讨论了形成纤维垫的聚合物浓度和静电纺丝条件。使用粉尘取样分析仪证明，最小平均直径的 PC 纤维垫对颗粒物吸附非常有效。详细讨论了形成纤维垫的聚合物浓度和静电纺丝条件。使用粉尘取样分析仪证明，最小平均直径的 PC 纤维垫对颗粒物吸附非常有效。