Distributed multiscale simulations of clay-polymer nanocomposites

James Suter, Derek Groen, Lara Kabalan, Peter V. Coveney

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Citations (Scopus)

Abstract

The mechanical enhancement of polymers when clay nanoparticles are dispersed within it depends on factors over various length scales; for example, the orientation of the clay platelets in the polymer matrix will affect the mechanical resistance of the composite, while at the shortest scale the molecular arrangement and the adhesion energy of the polymer molecules in the galleries and the vicinity of the clay-polymer interface will also affect the overall mechanical properties. In this paper, we address the challenge of creating a hierarchal multiscale modelling scheme to traverse a sufficiently wide range of time and length scales to simulate clay-polymer nanocomposites effectively. This scheme varies from the electronic structure (to capture the polymer - clay interactions, especially those of the reactive clay edges) through classical atomistic molecular dynamics to coarse-grained models (to capture the long length scale structure). Such a scenario is well suited to distributed computing with each level of the scheme allocated to a suitable computational resource. We describe how the e-infrastructure and tools developed by the MAPPER (Multiscale Applications on European e-Infrastructures) project facilitates our multiscale scheme. Using this new technology, we have simulated clay-polymer systems containing up to several million atoms/particles. This system size is firmly within the mesoscopic regime, containing several clay platelets with the edges of the platelets explicitly resolved. We show preliminary results of a "bottom-up" multiscale simulation of a clay platelet dispersion in poly(ethylene) glycol.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium Proceedings
Pages1-6
Number of pages6
Volume1470
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event2012 MRS Spring Meeting - San Francisco, CA
Duration: 9 Apr 201213 Apr 2012

Other

Other2012 MRS Spring Meeting
CitySan Francisco, CA
Period9/4/1213/4/12

Fingerprint

clays
Nanocomposites
nanocomposites
Polymers
Clay
polymers
Platelets
platelets
simulation
clay
Distributed computer systems
Polymer matrix
Polyethylene glycols
Electronic structure
Molecular dynamics
glycols
resources
adhesion
ethylene
Adhesion

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Suter, J., Groen, D., Kabalan, L., & Coveney, P. V. (2012). Distributed multiscale simulations of clay-polymer nanocomposites. In Materials Research Society Symposium Proceedings (Vol. 1470, pp. 1-6) https://doi.org/10.1557/opl.2012.1009

Distributed multiscale simulations of clay-polymer nanocomposites. / Suter, James; Groen, Derek; Kabalan, Lara; Coveney, Peter V.

Materials Research Society Symposium Proceedings. Vol. 1470 2012. p. 1-6.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Suter, J, Groen, D, Kabalan, L & Coveney, PV 2012, Distributed multiscale simulations of clay-polymer nanocomposites. in Materials Research Society Symposium Proceedings. vol. 1470, pp. 1-6, 2012 MRS Spring Meeting, San Francisco, CA, 9/4/12. https://doi.org/10.1557/opl.2012.1009
Suter J, Groen D, Kabalan L, Coveney PV. Distributed multiscale simulations of clay-polymer nanocomposites. In Materials Research Society Symposium Proceedings. Vol. 1470. 2012. p. 1-6 https://doi.org/10.1557/opl.2012.1009
Suter, James ; Groen, Derek ; Kabalan, Lara ; Coveney, Peter V. / Distributed multiscale simulations of clay-polymer nanocomposites. Materials Research Society Symposium Proceedings. Vol. 1470 2012. pp. 1-6
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