5TH International Congress on Technology - Engineering & Science - Kuala Lumpur - Malaysia (2018-02-01)

Electrospinning And The Scaling Law Model For Beaded Fiber And Smooth Fiber From Poly(vinyl Alcohol) (pva)

The simplicity of electrospinning technique allows production of nanofiber from various polymers and composites. In this study, we synthesized poly(vinyl alcohol)/PVA nanofiber from PVA-containing precursor solutions at three different concentrations: 5, 9 and 12% w/w. The polymer solutions were electrospun under applied voltage of 10 kV, with needle-to-collector distance of 10 cm and flow rate of 0.5 mL/hour. The resulted nanofibers were characterized for the morphology using Scanning electron microscopy (SEM) and the scaling law model. Molecular interaction within nanofiber was examined using Fourier Transform Infrared Spectroscopy (FTIR). Our findings revealed that PVA solution at 5% w/w resulted in beaded fibers with average diameter of 253 nm and the increase in PVA concentration to 9 and 12% w/w resulted in bead-free (smoot) nanofibers with higher diameter of 301 and 455 nm, respectively. The Characteristic peaks and patterns in FTIR spectra showed that hydroxyl groups (-OH) and acetate groups played an important role in the molecular interaction within PVA nanofiber
Jaidan Jauhari, Sukemi, Huda Ubaya, Ida Sriyanti, Zainuddin Nawawi