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Poly(propylene) Nanocomposites Containing Various Carbon Nanostructures
Author(s) -
Li Yunfeng,
Zhu Jiahua,
Wei Suying,
Ryu Jongeun,
Wang Qiang,
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.201100364
Subject(s) - nanocomposite , materials science , crystallinity , composite material , thermal stability , rheology , compression molding , percolation threshold , carbon nanotube , dispersion (optics) , electrical resistivity and conductivity , modulus , permittivity , percolation (cognitive psychology) , conductivity , chemical engineering , dielectric , chemistry , electrical engineering , optoelectronics , optics , neuroscience , engineering , biology , mold , physics
PP nanocomposites containing different carbon nanofillers (CNTs, CNFs, GnPs, CB) are fabricated and further processed by hot compression molding. A high level of nanofiller dispersion is found. The NCs exhibit improved thermal stability and higher crystallinity. Both electrical conductivity and real permittivity increase with increasing nanofiller loading. A strongly aspect ratio dependent electrical conductivity percolation is observed at loadings of 15.0, 12.0, 5.0, and 3.0 wt% for CB, GnPs, CNFs, and CNTs, respectively. The rheological behavior of the NC melts is also investigated. A small concentration of the nanofillers is found to affect the modulus and viscosity of the PP melts significantly.