Extension-Enhanced Conductivity of Liquid Crystalline Polymer Nano-Composites

Abstract

Our aim here is to predict elongational flow-induced enhancements in thermal or electrical conductivity of liquid crystal polymer (LCP) nano-composites. To do so, we combine two classical mathematical asymptotic analyses: slender longwave hydro-thermo-dynamics for fibers and exact analysis of pure elongation of LCPs in solvents for bulk phases without boundary effects; and homogenization theory for effective properties of low volume-fraction spheroidal inclusions. Two implications follow: elongational flow dominates fiber free surface and thermal effects on electrical and thermal conductivity enhancements; and, there appears to be no sacrifice in enhancements by producing much higher radius, bulk fibers.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2005
Accession Number
ADA496363

Entities

People

  • Hong Zhou
  • M. G. Forest
  • Qi Wang
  • Robert Lipton
  • Xiaoyu Zheng

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Boundaries
  • Composite Materials
  • Conductivity
  • Crystals
  • Electrical Conductivity
  • Information Operations
  • Liquid Crystal Polymers
  • Liquid Crystals
  • Mathematics
  • Nanocomposites
  • Physical Properties
  • Polymers
  • Thermal Conductivity

Fields of Study

  • Materials science

Readers

  • Fluid Dynamics.
  • Materials Science and Engineering.
  • Reinforced Composite Materials