Morphology and pore size distribution of electrospun and centrifugal forcespun nylon 6 nanofiber membranes

Abstract

The porosity and high surface-area-to-volume ratio of nanofiber membranes offer potential for diverse applications, including high-efficiency filters and barrier fabrics for use in protective textiles. The objective of this research is to examine the morphology and pore size distribution of nanofiber membranes prepared using two spinning methods, that is, electrospinning and forcespinning. The results indicate that fiber diameter is impacted by spinning solution viscosity in an analogous way for both spinning methods. Higher concentrations resulted in larger fiber diameters in both electrospun and forcespun membranes. Fiber diameter and membrane areal density were found to significantly impact membrane pore size distribution. A theoretical model was used to describe pore size variation and was found to agree with the empirical patterns in the case of electrospun membranes.

Exploration of nanofibrous coated webs for chemical and biological protection

“…Figure 4 clearly demonstrated that sulphur mutated simulant chemical molecules is adhered onto surface of the web and therefore, web is acting as a barrier layer for CWA sulphur mustard gas. On the other hand, air permeability, water vapour, and bacteria and chemical filtration results of functional integrated layer showed agreement and correlation with those obtained by pore size and morphological measurements [24][25][26][27][28][29][30][31]. Nanoweb morphology act as a barrier layer is in close agreement with previously reported work for various other applications [32][33][34][35][36][37][38][39].…”

Electrospun Polyacrylonitrile Nanofibrous Membranes for Point‐of‐Use Water and Air Cleaning

“…Pore size, size distribution, and porosity are parameters that directly influence the air permeability of the nanofiber web. Fiber diameter plays a major role in the pore size of the nanofiber layers . The average pore size according to the fiber diameter of the membranes is shown in Figure .…”

“…Fiber diameter plays a major role in the pore size of the nanofiber layers. [42][43][44] The average pore size according to the fiber diameter of the membranes is shown in Figure 5. The pore size and the fiber diameter of the membranes showed almost the same behavior.…”

Rotary jet spinning review – a potential high yield future for polymer nanofibers

“…The promise is that biological function lost in host tissues will be able to be restored and maintained by tissue engineering through the use of RJS nanofibers. [99][100][101][102] A common goal Yuan, 79 where PA6 fibers spun with properties and processing settings that would guarantee bead free continuous fibers were compared in both electrospinning and RJS (referred to as FS in Figure 9). …”