Dynamic response of a graphene oxide-polyaniline composite suspension under an applied electric field

作者：Zhang Wen Ling^*; Choi Hyoung Jin

来源：Journal of the Korean Physical Society, 2012, 61(9): 1422-1425.

DOI：10.3938/jkps.61.1422

• Graphene oxide
• Polyaniline
• Composite
• Electrorheological

A suspension of semiconducting graphene oxide/polyaniline (GO/PANI) composite particles dispersed in silicone oil is considered as one of the potential candidates for an electrorheological (ER) fluid. The GO/PANI composite was synthesized by using chemical oxidation polymerization of aniline in the presence of a GO dispersion that contained GO that had been prepared by using a modified Hummers method. The characteristics of the composite were examined by using SEM images and FT-IR spectra and indicated the coexistence of GO and PANI in the composite. The GO/PANI-composite-based ER fluid was prepared by dispersing the fabricated particles in silicone oil, and its dynamic viscoelastic properties were measured using a rotational rheometer under different electric fields, which showed that the ER fluid exhibited typical solid-like ER behaviors.

• 出版日期2012-11