The influence of control parameter on the morphology polyethersulfone/polyacrylonitrile (PES/PAN) fiber using electrospinning technique

Abstract

Electrospinning is one of a method for fabricating nanometer to micrometre fibres. Some parameters that affect the formation of nanofibers in an electrospinning method such as solution, process, and environmental parameters. This research aims to synthesize and characterize polyethersulfone/polyacrylonitrile (PES/PAN) nanofibers and to analyze the effect of electrospinning parameters on PES/PAN nanofibers. PES/PAN fibres were prepared by dissolving PES with a concentration of 10% (w/w), 15% (w/w), 20% (w/w), and then added 0,5 gram of PAN. The results of fibre morphology with a variety of solutions showed the PPG1 fibre bead and the fibres for PPG2 and the fibre for PPG3, the morphological results of the PPG2 samples with variations in the tip collector distance indicated the fibre. The results of the diameter analysis showed that the effect of solution variation showed fibre for PPG1, PPG2, PPG3, namely 481 nm, 776 nm, 1339 nm, respectively while the diameter variation of the tip collector distance is 5 cm, 10 cm, 15 cm, namely 1266 nm, 860 nm, 401 nm, respectively and the voltage variation at 10 kV, 12 kV, 14 kV, namely 698 nm, 681 nm, 680 nm, respectively. The results of morphology and diameter show that the solution parameters and the electrospinning process affect the shape and diameter of the fibre. Fabricated fibres can be used as matrices in air filtration systems.

The morphology of polyvinylpyrrolidone nanofibers containing Anredera cordifolia leaves

“…Meanwhile, the color changes and flexible structure of PVP nanofibers and PVP/Anredera cordifolia leaves nanofiber are shown in Figure 2. The formation of PVP and PVP/ Anredera cordifolia leaves nanofiber (BLE1, BLE2, and BLE3) was influenced by three factors that work in the electrospinning system, namely (a) a high voltage; that causes an electric force in the solution, where a negative charge might move to the tip of the needle Lamura et al, 2021;Ramakrishna et al, 2010); (b) Syiring pump; that might produce a driving force for the flow of the PVP or PVP/BLE polymer solution flow to drip on the tip of the needle; (c) surface tolerance of PVP or PVP/BLE; that is a force that can hold the solution from falling and can radiate towards the collector (Jauhari et al, 2019;Nayak et al, 2017). The existence of an equilibrium between the three factors above caused the polymer solution of the PVP or PVP/ BLE polymer to be attracted and form a Taylor cone (Jauhari et al, 2019;Ramakrishna et al, 2010).…”

Parametric optimization of poly(ether sulfone) electrospun membrane for effective oil/water separation

“…Additionally, ambient conditions like temperature and humidity also play a role in fine-tuning the fiber properties. 5 Poly(ether sulfone) (PES) is a high-performance aromatic polymer where aromatic groups are linked together in the para positions through sulfone and ether groups, constituting the fundamental repeating unit of the polymer's backbone. 6,7 PES finds extensive application in water treatment membrane technology due to its water insolubility and outstanding mechanical and thermal characteristics.…”

“…The morphology, size, and surface characteristics of the fibers can be adjusted by either manipulating process parameters, such as voltage, tip‐to‐collector distance (TCD), flow rate, and collector geometry, or by modifying solution parameters, including molecular weight, polymer concentration, conductivity, and viscosity. Additionally, ambient conditions like temperature and humidity also play a role in fine‐tuning the fiber properties 5 …”