Accession Number:

ADA610913

Title:

Studying the Dependency of Interfacial Formation with Carbon Nanotube

Descriptive Note:

Final rept. 1 Jul 2011-30 Jun 2014

Corporate Author:

NORTHEASTERN UNIV BOSTON MA

Personal Author(s):

Report Date:

2014-08-27

Pagination or Media Count:

86.0

Abstract:

The proposed work was focused on understanding the capabilities of polymeric materials to form interfacial structures around carbon nanotubes and other nano-carbon materials. The proposed effort led to the development of a new processing route for dispersing nano-carbons in dilute polymer solutions. This dispersion process involved steps of sonication, shearing, and crystallization. The specific combination of these processes resulted in the formation of polymer interfacial growth i.e., interphase structures on the nano-carbon surfaces. The interphase formed consisted of either extended-chain or folded-chain polymer crystals depending on the processing route used. This processing approach for the dispersion of nano-carbons and formation of polymer interphase was implemented into fiber processing procedures. In general, these studies showed that the inclusion of interphase structures in the composite fibers led to dramatic increases in the mechanical properties. Beyond mechanical enhancement, the composite fiber morphology was also examined to understand the fundamental links between the processing route use and the resultant structure-property relationship.

Subject Categories:

  • Ceramics, Refractories and Glass
  • Laminates and Composite Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE