2013 AIChE Annual Meeting

(296f) Molecular Dynamics Simulation of the Interfacial Shear Strength of a 3-Layer Graphene Nanoplatelet-Vinyl Ester Resin Matrix

Authors

Hossein Toghiani - Presenter, Mississippi State University
Changwoon Jang, Mississippi State University
Thomas E. Lacy, Mississippi State University
Steven R. Gwaltney, Mississippi State University
Charles U. Pittman, Mississippi State University



Molecular dynamics (MD) simulations were used to study the interfacial adhesion between a three layer thick graphite nanoplatelet and a vinyl ester (VE) matrix. Interfacial bonding and carbon/matrix load transfer are influenced by formation of a polymer interphase near the carbon surfaces.  A VE resin was equilibrated near the graphite surfaces and then cured using the Relative Reactivity Volume algorithm to form a crosslinked matrix while enforcing the correct regiochemistry and relative reactivity ratios within the free radical addition cure.  More chemically realistic predictions of the interfacial surface adhesion are possible with this computational methodology.