Study of the effect of interface enthalpy on nanocomposite viscoelasticity

B. Natarajan*, H. Deng, D. Gai, M. Krein, C. M. Breneman, L Catherine Brinson, L. S. Schadler

*Corresponding author for this work

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

1 Scopus citations

Abstract

Polymer Nanocomposites (PNC) are a fascinating category of material systems, in which nanoscopic fillers are found to induce remarkable improvements in the properties of the polymeric matrix.[1] This improvement is often determined by the interfacial energetic interactions which dictate the matrix chain mobility, filler dispersion, and distribution. The PNC community has widely studied the glass transition temperature (Tg) with emphasis laid primarily on the effects of confinement on the matrix polymer.[2, 3, 4] Dispersion/flocculation has also received attention in the elastomeric nanocomposite community in relation to the wetting behavior of fillers. [5] A consolidated view of both these phenomena is yet to be presented in terms of the interfacial energetics. In this study we investigate bare or short chain silane modified filler systems, in which enthalpic effects dominate. This is a first step towards understanding the effect of surface energetics on the thermomechanical properties of PNCs, such as the Tg and viscoelasticity. We subsequently seek to develop a predictive model for the same invoking an informatics based approach [6], which employs Materials Quantitative Structure-Property Relationships (MQSPR) coupled with a Finite Element Method, to link disparate length scales, reducing the need for detailed calculations.

Original languageEnglish (US)
Title of host publicationMechanics of Time-Dependent Materials and Processes in Conventional and Multifunctional Materials - Proceedings of the 2011 Annual Conference on Experimental and Applied Mechanics
Pages7-10
Number of pages4
StatePublished - Dec 1 2011
Event2011 SEM Annual Conference on Experimental and Applied Mechanics - Uncasville, CT, United States
Duration: Jun 13 2011Jun 16 2011

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
Volume3
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Other

Other2011 SEM Annual Conference on Experimental and Applied Mechanics
CountryUnited States
CityUncasville, CT
Period6/13/116/16/11

ASJC Scopus subject areas

  • Engineering(all)
  • Computational Mechanics
  • Mechanical Engineering

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