Accession Number:

ADA624976

Title:

Preparation, Characterization, and Energetic Properties of Metallized Nanofibers

Descriptive Note:

Journal article

Corporate Author:

TEXAS TECH UNIV LUBBOCK DEPT OF MECHANICAL ENGINEERING

Report Date:

2013-12-31

Pagination or Media Count:

8.0

Abstract:

Polystyrene fibers loaded with an energetic blend of nanoaluminum n-Al and perfluoropolyether PEFE were successfully fabricated via electrospinning producing a nanothermite energetic material. Fibers were generated with loadings from 6 up to 25 wt n-AlPFPE incorporated into the fiber. Microscopy analysis by SEM and TEM confirm a uniform dispersion of PFPE treated n-Al on the outside and inside of the fibers. Metalized fibers were thermally active upon immediate ignition from a controlled flame source. Thermal analysis by differential scanning calorimetry DSC found no change in glass transition temperature when comparing pure polystyrene fibers with fibers loaded up to 25 wt n-AlPFPE. Thermal gravimetric analysis TGA revealed a shift in decomposition temperatures to lower onsets upon increased loadings of n-AlPFPE blends consistent with previous studies. Flame propagation studies confirmed that the metallized fibers are pryolants. These metalized fibers are a recent development in metastable intermolecular composites MICs and details of their synthesis, characterization, and thermal properties are presented.

Subject Categories:

  • Polymer Chemistry
  • Miscellaneous Materials
  • Thermodynamics
  • Combustion and Ignition

Distribution Statement:

APPROVED FOR PUBLIC RELEASE