Variability of Mechanical and Dielectric Properties in Testing Electrospun PAN Nanofiber Mat

摘要

Electrospinning technology has been found to have applications in various fieldsincluding medical, structural reinforcement, filtration, storage, energy, and others.Electrospinning has been successfully used to develop aligned micro- and nano-fibermats for lightweight reinforcement of composite materials and structures. Ahorizontal apparatus has been designed and fabricated for improved micro- and nanofiberalignment that provides the possibility of developing better reinforcementmaterials in the form of aligned fiber mats. These nano fiber mats are stiffer, strongerand have better mechanical, electrical and thermal properties for structural and multifunctionalapplications. Understanding the behavior of nanofibers at its nano scale isimportant for realizing benefits in these fields. In this research, the force rate behaviorof nanofibers; its toughness properties, dielectric properties, specimen geometries,measurement challenges and characterizing failure modes at the failure regions havebeen demonstrated.