Accession Number:

ADA361108

Title:

The Use of Thermal Analysis in the Characterization of a Polymer Surface

Descriptive Note:

Final rept.

Corporate Author:

ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET WEAPONS LAB

Personal Author(s):

Report Date:

1999-03-01

Pagination or Media Count:

15.0

Abstract:

Fuel cells are electrochemical systems that convert hydrogen into electricity without combustion. A proton exchange membrane PEM fuel cell power system consists of a polymer membrane, finely disbursed catalyst, and a gas humidifying system. Thermogravimetry TGA and differential scanning calorimetry DSC are powerful tools that can be used to characterize the physical properties of a polymer membrane. Ion chromatography can monitor the presence of contaminating ions in the aqueous condensate. TGA can easily measure the distribution of metal atalysts on a polymer surface due to the much lower decomposition temperature of the polymer. DSC can be used to measure the concentration of Teflon in a polymer blend by measuring the melting energy.

Subject Categories:

  • Polymer Chemistry
  • Electrochemical Energy Storage

Distribution Statement:

APPROVED FOR PUBLIC RELEASE