Morphology and properties of exfoliated graphite/thermoplastic polyurethane nanocomposites

Hyunwoo Kim, Christopher Macosko

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Functionalized graphite sheets (FGS) and isocyanate treated graphite oxide (iGO) were incorporated into thermoplastic polyurethane (TPU) via melt compounding, solvent blending and in-situ polymerization. Transmission electron microscopy (TEM) indicated that FGS is exfoliated while iGO forms mixed morphology of partial intercalation and exfoliation. Their dispersion into TPU resulted in noticeable enhancements in electrical conductivity, stiffness and gas barrier. Average aspect ratios of graphitic additives determined by fitting properties with composite theories agree well with values from direct TEM imaging.

Original languageEnglish (US)
Title of host publication67th Annual Technical Conference of the Society of Plastics Engineers 2009, ANTEC 2009
Pages122-125
Number of pages4
Volume1
StatePublished - Nov 25 2009
Event67th Annual Technical Conference of the Society of Plastics Engineers 2009, ANTEC 2009 - Chicago, IL, United States
Duration: Jun 22 2009Jun 24 2009

Other

Other67th Annual Technical Conference of the Society of Plastics Engineers 2009, ANTEC 2009
CountryUnited States
CityChicago, IL
Period6/22/096/24/09

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