Fourier-Transform Infrared (FTIR) Characterization of Chemical Agent Resistant Coatings (CARC) Durability Using Infrared (IR) Cards and Silicon Wafers
Final rept. Sep 95-Oct 96
ARMY RESEARCH LAB FORT BELVOIR VA
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Rapid, cost-effective sampling accessories for Fourier-Transform Infrared FTIR analysis are quite suitable with minimum sample preparation in coating materials studies. The U.S. Armys camouflage, polyurethane topcoat MIL-C-46l68, Chemical Agent Resistant Coating CARC was applied to infrared IR cards and silicon wafers. After curing, the coatings durability was tested using two separate accelerated weathering techniques QUV-CON and Xenon-Arc, and as well as, two outdoor exposure test methods South Florida and EMMAQUA-NTW. Characterization of the binders chemical changes during both natural and accelerated weathering processes was monitored using the FTIR. This final report summarizes the experimental results of the coatings resistance to the accelerated-weathering and outdoor-exposure conditions. Additionally, a brief description of the authors method is described for the preparation of silicon wafers and subsequent FTIR analysis.
- Coatings, Colorants and Finishes
- Chemical, Biological and Radiological Warfare
- Logistics, Military Facilities and Supplies