| タイトル | Characterization of Epoxy Functionalized Graphite Nanoparticles and the Physical Properties of Epoxy Matrix Nanocomposites |
| 本文（外部サイト） | http://hdl.handle.net/2060/20110016125 |
| 著者（英） | Barlow, Jeremy P.; Maryanski, Michael J.; Allred, Ronald E.; Bauer, Jonathan L.; Heimann, Paula J.; Miller, Sandi G.; Gosau, Jan-Michael |
| 著者所属（英） | NASA Glenn Research Center |
| 発行日 | 2010-03-06 |
| 言語 | eng |
| 内容記述 | This work presents a novel approach to the functionalization of graphite nanoparticles. The technique provides a mechanism for covalent bonding between the filler and matrix, with minimal disruption to the sp2 hybridization of the pristine graphene sheet. Functionalization proceeded by covalently bonding an epoxy monomer to the surface of expanded graphite, via a coupling agent, such that the epoxy concentration was measured as approximately 4 wt.%. The impact of dispersing this material into an epoxy resin was evaluated with respect to the mechanical properties and electrical conductivity of the graphite-epoxy nanocomposite. At a loading as low as 0.5 wt.%, the electrical conductivity was increased by five orders of magnitude relative to the base resin. The material yield strength was increased by 30% and Young s modulus by 50%. These results were realized without compromise to the resin toughness. |
| NASA分類 | Composite Materials |
| レポートNO | E-17989 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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