Graphene network enabled high speed electrical actuation of shape memory nanocomposite based on poly(vinyl acetate) |
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| Authors: | Mohammad Sabzi Masoud Babaahmadi Navid Samadi Gholam Reza Mahdavinia Mohsen Keramati Nasser Nikfarjam |
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| Affiliation: | 1. Department of Chemical Engineering, Faculty of Engineering, University of Maragheh, Maragheh, Iran;2. Department of Chemistry, Faculty of Science, University of Maragheh, Maragheh, Iran;3. Department of Polymer Processing, Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran;4. Department of Chemistry, Institute for Advanced Studies in Basic Sciences, Zanjan, Iran |
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| Abstract: | Here strong electroactive shape memory nanocomposites were prepared by incorporating graphene nanoplatelets into poly(vinyl acetate) (PVAc ) through the simple solvent mixing method. TEM and XRD revealed that well exfoliated graphene nanoplatelets formed a continuous network throughout the matrix with a large amount of interconnectedness. Dynamic mechanical analysis showed that the inclusion of graphene significantly improves both glassy and rubbery moduli of the matrix. Furthermore, the prepared nanocomposites demonstrated a marked electrical conductivity up to 24.7 S m?1 and thereby surprisingly rapid electrical actuation behaviour exhibiting a 100% recovery ratio in 2.5 s. Moreover, PVAc and its nanocomposites displayed scratch self‐healing capability. This work demonstrates that the PVAc /graphene nanocomposites with high modulus and excellent electroactive shape memory performance can be a promising material in many applications such as sensors and fast deployable and actuating devices. © 2016 Society of Chemical Industry |
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| Keywords: | electrical actuation shape memory poly(vinyl acetate) graphene |
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