Accession Number:

ADA504400

Title:

Nanocomposite Fibers Based on Phase Separating Polymer Blends

Descriptive Note:

Conference paper

Corporate Author:

ARMY NATICK SOLDIER RESEARCH DEVELOPMENT AND ENGINEERING CENTER MA

Report Date:

2008-12-01

Pagination or Media Count:

8.0

Abstract:

We have investigated phase separating immiscible polymer blends of a polymer melt and a polymer solution as a means to produce composites with features on a submicron length scale. A 2D cell dynamics code for modeling phase separation in a flow field has been modified to include features such as a boundary which favors one component and a flow profile for a power law fluid. The simulations indicate that the skin formation seen experimentally is driven by surface energy effects rather than viscosity. In pressure driven flow a power law fluid is predicted to have a more pronounced sheath core structure than a Newtonian fluid.

Subject Categories:

  • Polymer Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE