▎ 摘　　要

SU8 is an epoxy-Novolac resin that is used as a photo initiator in micro- and nano-fabrication techniques. From literature, graphene has been shown to result in a significant improvement in the properties of the composites. However, due to the nanometer size of the graphene layers, there is no experimental tool to obtain some insight into the fillers inside the resin, especially when the materials are under mechanical deformations where simulation techniques work well. Therefore, SU8 and SU8-graphene nanocomposites as the model compounds were taken to be investigated by an atomistic molecular dynamic approach to demonstrate the effect of graphene layers. This leads to mechanical property enhancement such as Young's, bulk and shear modules affected by the aspect ratio of the graphene layers; high-aspect ratio graphene in SU8 leads to an 81% improvement in Young's, 100% in bulk, and 83% in shear moduli, in addition to higher density and less graphene wrinkling. (C) 2018 Sharif University of Technology. All rights reserved.