Accession Number:

ADA464995

Title:

Nanoparticle Control of Void Formation and Expansion in Polymeric and Composite Systems

Descriptive Note:

Final performance rept., 15 Dec 2005-30 Nov 2006

Corporate Author:

DELAWARE UNIV NEWARK CENTER FOR COMPOSITE MATERIALS

Personal Author(s):

Report Date:

2007-02-01

Pagination or Media Count:

9.0

Abstract:

This research focused on a nanoscale modification of traditional polymeric matrix morphology through particle introduction and subsequent void formation. The main areas of research have been a study of interlayer modification and analyses of continued carbon fiber reinforced polymeric matrix composites at the nanoscale. The results showed improvements in toughness up to a critical threshold, after which, an increase in the concentration and size of nanoparticulate matter and corresponding foams in the matrix deteriorated the fracture toughness properties significantly. Furthermore, nanoscale particles and foams could be used to alter the response of composite materials to a hydrothermal environment. Collectively, we are now establishing, in a reproducible manner, the placement of nanoparticles and foams in interlayer regions.

Subject Categories:

  • Laminates and Composite Materials
  • Polymer Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE