Author(s)

KAZUTO TANAKA, NANAMI YAMAMURO, TSUTAO KATAYAMA

Abstract

Tetrathiafulvalene-tetracyanoquinodimethane (TTF-TCNQ) is an organic semiconductor with excellent mechanical flexibility and it is attracting attention as a material of bendable devices. Nanofibers containing TTF-TCNQ can be used as sensors and electrodes. In order to apply nanofiber nonwoven fabrics with TTF-TCNQ into practical use of a wide range of fields utilizing its mechanical flexibility, it is necessary to clarify the effect of the additive amount of TTF-TCNQ on the mechanical properties of nanofiber nonwoven fabrics. In this study, TTF-TCNQ/Polyamide 6 (PA6) nanofiber nonwoven fabric was fabricated by electrospinning method, and the effect of the additive amount of TTF-TCNQ on the mechanical properties of nanofiber nonwoven fabric was revealed by the tensile test. The tensile strength of PA6 nanofiber with 1 wt.% TTF-TCNQ was larger than that of nanofiber without TTF-TCNQ, and it fractured in a ductile manner. On the other hand, tensile strength of PA6 nanofiber with 10 wt.% TTF-TCNQ was smaller because of the aggregation of TTF-TCNQ.

Keywords

TTF-TCNQ/PA6 nanofiber nonwoven fabric, electrospinning, tensile strength, fracture behavior, volume resistivity