Continuous Nanofiber Bundle Production Using Helical Spinnerets with Different Configurations in Needleless Electrospinn at Salimpour Site.

The microstructure, wettability, and electrochemical performance of MXene/polyacrylonitrile (PAN)-derived hybrid carbon nanofiber membranes (MCNFs)... 2024-08-27

2024-09-01

Nanofibers can be produced by various techniques, such as a broad range of electrospinning techniques to produce nanofiber mats from different polymers or polymer blends, often filled with metallic or semiconducting nanoparticles or by different nanotechnological bottom-up or top-down methods. They are important parts of a wide variety of energy applications, such as batteries, fuel cells, photovoltaics, or hydrogen storage materials. Usually, their physical or chemical parameters are measured by averaging over a fiber bundle or a part of a nanofiber mat. Here, we report the possibility of measuring the different physical and chemical properties of single nanofibers and nanowires. 2024-10-01

This study presents a novel approach to converting electrospun polyacrylonitrile (PAN) nanofiber bundles into rovings, essential for nanofiber yarn spinning, through the implementation of false twisting and drawing processes. The false twisting process is optimized by varying the input bundle angle (40° to 60°), twister type (A, B, C), and rotation speed (20, 50, and 80 rpm). A bundle input angle of 55°, twister type B, and a twister rotation speed of 80 rpm show the best results in terms of longer twisted length, lower average thickness, and thickness variation values. The morphological, physical, and mechanical properties of the resulting nanofiber rovings for drawing process 2025-02-01

The target audience of this is senior undergraduate and graduate students, researchers, and engineering practitioners who are about to enter or... 2025-04-12