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Functionalized MWNT‐Doped Thermoplastic Polyurethane Nanocomposites for Aerospace Coating Applications
Author(s) -
Zhao Wenming,
Li Mei,
Peng HuaXin
Publication year - 2010
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201000080
Subject(s) - materials science , nanocomposite , composite material , coating , carbon nanotube , polyurethane , ultimate tensile strength , thermoplastic polyurethane , thermoplastic , glass transition , electrical resistivity and conductivity , polymer , elastomer , electrical engineering , engineering
Abstract Targeting specific aerospace coating applications, highly conductive carbon nanotubes were rigorously dispersed into a commercial topcoat PU matrix to produce nanocomposites for electrostatic dissipation and/or de‐icing coatings. Systematic evaluation on a range of properties that are pertaining to the targeted applications showed that, comparing with pure PU film, an addition of 1 wt.‐% functionalized MWNTs resulted in a significant improvement in the tensile strength and modulus; a 6.5 °C shift in glass transition temperature; a six orders of magnitude decrease in electrical resistivity and 24% improvement in thermal diffusivity. The durable, light color, and flexible nanocomposite with sufficiently low surface resistivity meet the requirements for aerospace coating applications.