TY - GEN
T1 - Interfacial strength and physical properties of functionalized graphene - Epoxy nanocomposites
AU - Miller, Sandi G.
AU - Heimann, Paula
AU - Scheiman, Daniel
AU - Adamson, Douglas H.
AU - Aksay, Ilhan A.
AU - Prud'homme, Robert Krafft
PY - 2006/12/1
Y1 - 2006/12/1
N2 - The toughness and coefficient of thermal expansion of a series of functionalized graphene sheet -epoxy nanocomposites are investigated. Functionalized graphene sheets are produced by splitting graphite oxide into single graphene sheets through a rapid thermal expansion process. These graphene sheets contain ∼10% oxygen due to the presence of hydroxide, epoxide, and carboxyl functional groups which assist in chemical bond formation with the epoxy matrix. Intrinsic surface functionality is used to graft alkyl amine chains on the graphene sheets, and the addition of excess hardener insures covalent bonding between the epoxide matrix and graphene sheets. Considerable improvement in the epoxy dimensional stability is obtained. An increase in nanocomposite toughness is observed in some cases.
AB - The toughness and coefficient of thermal expansion of a series of functionalized graphene sheet -epoxy nanocomposites are investigated. Functionalized graphene sheets are produced by splitting graphite oxide into single graphene sheets through a rapid thermal expansion process. These graphene sheets contain ∼10% oxygen due to the presence of hydroxide, epoxide, and carboxyl functional groups which assist in chemical bond formation with the epoxy matrix. Intrinsic surface functionality is used to graft alkyl amine chains on the graphene sheets, and the addition of excess hardener insures covalent bonding between the epoxide matrix and graphene sheets. Considerable improvement in the epoxy dimensional stability is obtained. An increase in nanocomposite toughness is observed in some cases.
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M3 - Conference contribution
AN - SCOPUS:84858479218
SN - 0938994727
SN - 9780938994725
T3 - International SAMPE Technical Conference
BT - 38th SAMPE Fall Technical Conference
T2 - 38th SAMPE Fall Technical Conference: Global Advances in Materials and Process Engineering
Y2 - 6 November 2006 through 9 November 2006
ER -