Accession Number : ADA317787

Title :   Atmospheric Chemistry of Coating Systems.

Descriptive Note : Final rept. Nov 95-Jul 96,

Corporate Author : ARMSTRONG LAB TYNDALL AFB FL ENVIRONICS DIRECTORATE

Personal Author(s) : Wells, J. R. ; Baxley, J. S. ; Winner, D. A.

PDF Url : ADA317787

Report Date : OCT 1996

Pagination or Media Count : 43

Abstract : Understanding the atmospheric impact of Air Force operations is important for maintaining environmental compliance. A detailed description of emissions is important for derivation of operational atmospheric impact. The atmospheric assessment of current and future Air Force coating systems was conducted by identifying and quantifying the volatile organic compounds (VOC) emitted by the coating system. This information was then fed into an incremental reactivity calculation to determine the VOC's ozone forming potential. The summation of the VOC incremental reactivity times VOC concentration is used to determine an incremental reactivity for the coating. The coatings that contained m-xylene, o-xylene, ethyl benzene, and nitroethane had the largest incremental reactivities. The hydroxyl radical rate constant and proposed atmospheric reaction mechanism of ethyl 3-ethoxypropionate was also determined.

Descriptors :   *COATINGS, *ATMOSPHERIC CHEMISTRY, EMISSION, AIR FORCE, COMPUTATIONS, REACTIVITIES, ORGANIC COMPOUNDS, XYLENES, VOLATILITY, ENVIRONMENTAL PROTECTION, OZONE, AIR FORCE OPERATIONS, ETHYL RADICALS, HYDROXYL RADICALS, BENZENE COMPOUNDS, NITROETHANE.

Subject Categories : Coatings, Colorants and Finishes
      Organic Chemistry
      Logistics, Military Facilities and Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE