Effects of Various Surfactants on Alkali Lignin Electrospinning Ability and Spun Fibers

Abstract

Anionic, cationic, and non-ionic surfactants with varying concentrations (0.2-1.2 %)were introduced to neutralize beads on lignin nanofibers by decreasing the surface tension of spinning dopes. The surfactants used in this work were sodium dodecyl sulfate (SDS), N,N,Ntrimethyl-1-dodecanaminium bromide (DTAB), and Triton™ X-100 (TX-100). The effects of viscosity, rheological properties, surface tension, and conductivity of the solutions on the morphology and physicochemical performances of fibers were investigated. As expected, the presence of certain amounts of surfactants eliminated the beads and resulted in the formation of smooth and bead-free fibers with small diameters. Furthermore, the gravimetric capacitance of carbon mat with 1 % SDS was slightly improved from 66.3 to 80.7 F g-1. The results suggested that the surfactants benefit the electrospinning of lignin and allow for the control over nanofiber morphology without compromising their performance as supercapacitor electrodes.

Electrospun hydrophobe nanofibrous membrane based on polysulfone/Triton x‐100: A novel vehicle to concentrate pomegranate juice

“…The authors reported that the fiber diameter was 470 nm, which is smaller than those observed in the present study. This discrepancy is due to higher molecular weight of the polymer used in our study than that applied by Gopal et al (2007), that makes the solution more viscose (Fang et al, 2017). respectively.…”

“…Likewise, Ray et al (2017) indicated that the incorporation of TR-100 into poly vinyl alcohol nanofibrous layer resulted in improving uniformity and homogeneity in fiber diameter (Ray et al, 2017). Fang, Yang, Yuan, Charlton, and Sun (2017) also observed that the addition of TR-100 to lignin-based fibers led to the formation of smooth and bead-free fibers with small diameters. In a study conducted by Gopal, et al (2007), the electrospinning technique was used to fabricate nano-fibers from PSF/DMF solution.…”

Application of electrospinning technique in development of intelligent food packaging: A short review of recent trends

“…This factor depends on the polymer and solvent properties, being controlled by changing their mass ratio (Rogina, 2014; Xue et al., 2019). Uniform fibers can be produced when the surface tension of the solution is reduced at a fixed concentration (Fang, Yang, Yuan, Charlton, & Sun, 2017; Moreira, de Morais, de Morais, da Silva Vaz, & Costa, 2018).…”

A Feasible Way to Produce Carbon Nanofiber by Electrospinning from Sugarcane Bagasse

“…Electrospinning is a simple and multifunctional technique for producing continuous nanofibers [1,2]. It has received lots of attention due to the extensive sources of raw materials, such as synthetic and natural polymers, polymer alloys, polymers loaded with chromophores, nanoparticles, active agents, metals and ceramics, and so on [3][4][5].…”