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Poly(propylene)/Graphene Nanoplatelet Nanocomposites: Melt Rheological Behavior and Thermal, Electrical, and Electronic Properties

✍ Scribed by Yunfeng Li; Jiahua Zhu; Suying Wei; Jongeun Ryu; Luyi Sun; Zhanhu Guo

Book ID
102940653
Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
984 KB
Volume
212
Category
Article
ISSN
1022-1352

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✦ Synopsis

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.

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## Abstract CNF‐reinforced PP nanocomposites were fabricated from CNFs dispersed in a boiling PP/xylene solution. Their thermal properties were characterized by TGA and DSC and shown to exhibit improved thermal stability and higher crystallinity. They were further processed into thin films by compr