Abstract
The effect of covalent functionalization of (5,5)/(10,10)/(15,15) three-wall carbon nanotubes (3WCNTs) on the atomic-level mechanical properties of 3WCNT-reinforced vinyl ester epoxy polymer has been studied using molecular mechanics calculations. Inter- and intra-molecular atomic interactions in the 3WCNT + vinyl ester epoxy polymer system are represented using condensed-phased optimized molecular potential for atomistic simulation studies (COMPASS), an ab initio forcefield that enables an accurate and simultaneous prediction of various gas-phase and condensed-phase properties of organic and inorganic materials. The computational crystal consisting of a periodic array of infinitely long 3WCNTs surrounded by amorphous poly-vinyl-ester-epoxy is constructed using an in-house developed computer program and the amorphous cell tools by Accelrys. All the computations are carried out using Discover, a molecular statics/dynamics program from Accelrys. The results obtained show that covalent functionalization has a profound effect of the matrix-to-nanotube load transfer especially when the loads are applied in a direction orthogonal to the nanotube axis.
Original language | English (US) |
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Pages (from-to) | 3009-3021 |
Number of pages | 13 |
Journal | Applied Surface Science |
Volume | 253 |
Issue number | 6 |
DOIs | |
State | Published - Jan 15 2007 |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Surfaces, Coatings and Films
- Surfaces and Interfaces