Tailoring Supramolecular Nanofibers for Air Filtration Applications

• DOI: 10.1021/acsami.6b04720
• Publication Date: 2016-05-16T16:30:47Z
• Authors: Daniel Weiss; Dominik Skrybeck; Holger Misslitz; David Nardini; Alexander Kern; Klaus Kreger; Hans-Werner Schmidt
• Keywords: Microfiber; Electrospinning; Viscose; Filtration (mathematics); Synthetic fiber

The demand of new materials and processes for nanofiber fabrication to enhance the performance air filters is steadily increasing. Typical approaches obtain nanofibers are based on top-down such as melt blowing, centrifugal spinning, electrospinning polymer materials. However, limited with respect either a sufficiently high throughput or smallest achievable fiber diameter. This study reports comprehensively fast simple bottom-up process prepare supramolecular in situ inside viscose/polyester microfiber nonwovens. Here, selected small molecules class 1,3,5-benzenetrisamides employed. microfiber-nanofiber composites exhibit homogeneous distribution morphology throughout entire nonwoven scaffold. Small changes molecular structure processing solvent have strong influence final diameter and, consequently, filtration performance. Choosing proper conditions, surprisingly efficiencies particulate matter obtained. In addition, composite integrity at elevated temperatures was determined revealed that maintained compared utilized nonwoven.