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Poly(propylene)/Graphene Nanoplatelet Nanocomposites: Melt Rheological Behavior and Thermal, Electrical, and Electronic Properties
Author(s) -
Li Yunfeng,
Zhu Jiahua,
Wei Suying,
Ryu Jongeun,
Sun Luyi,
Guo Zhanhu
Publication year - 2011
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201100263
Subject(s) - materials science , crystallinity , nanocomposite , composite material , rheology , thermal stability , percolation threshold , electrical resistivity and conductivity , graphene , percolation (cognitive psychology) , permittivity , polymer , viscosity , polymer nanocomposite , modulus , thermal conductivity , chemical engineering , dielectric , nanotechnology , electrical engineering , optoelectronics , neuroscience , engineering , biology
Poly(propylene) polymer nanocomposites containing graphene nanoplatelets (GnPs) with different loadings are fabricated via a facile ex‐situ solution approach. Improved thermal stability and higher crystallinity are observed in the PNCs. Both electrical conductivity and real permittivity increase with increasing GnP loading. Electrical conductivity percolation is observed at 12.0 wt% GnP. The rheological behavior of the PNC melts are also investigated. It is found that the modulus and viscosity are reduced at small GnP loadings and increased above a critical loading.