Rheological Behaviors of Graphene Oxide/Polyacrylonitrile Spinning Solutions

Abstract:

The rheological behaviors of polyacrylonitrile (PAN) in NaSCN aqueous solutions containing different amount of Graphene oxide (GO) were investigated through both steady-state and dynamic rheological measurements. The parameters such as apparent viscosity (η_α), flow activation energy (E_η), structural viscosity index (Δη), storage modulus (G’), loss modulus (G’’) and mechanical loss factor (tanδ) were measured to illustrate the rheological behaviors of these solutions. The results showed that the apparent viscosity decreased with adding appropriate amount of GO, while the structural viscosity index, the flow activation energy and the mechanical loss factor of GO/PAN spinning solutions increased. Accordingly, a possible mechanism of GO effect on rheological behaviors of PAN solution was proposed in this work.

• Periodical: Materials Science Forum (Volume 898)
• Pages: 2187-2196
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.898.2187
• Online since: June 2017
• Authors: Feng Mei Li, Ying Ying Zheng, Biao Wang*
• Keywords: Electrostatic Interaction, GO/PAN Spinning Solutions, Graphene Oxide, NaSCN Aqueous Solution, Polyacrylonitrile (PAN), Rheological Properties

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