Fourier-Transform Infrared (FTIR) Characterization of Chemical Agent Resistant Coatings (CARC) Durability Using Infrared (IR) Cards and Silicon Wafers

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. Army's camouflage, polyurethane topcoat MIL-C-46l68, "Chemical Agent Resistant Coating" (CARC) was applie...

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Bibliographic Details
Main Authors: Lum, William, Patterson, Philip
Format: Report
Language:English
Subjects:
ACCELERATED TESTING
ARMY
BINDERS
CAMOUFLAGE
CARC(CHEMICAL AGENT RESISTANT COATING)
CHEMICAL AGENTS
Chemical, Biological and Radiological Warfare
COATINGS
Coatings, Colorants and Finishes
COST EFFECTIVENESS
DURABILITY
FOURIER TRANSFORM INFRARED
FOURIER TRANSFORMATION
FTIR(FOURIER TRANSFORM INFRARED)
INFRARED CARDS
INFRARED EQUIPMENT
Logistics, Military Facilities and Supplies
POLYURETHANE TOPCOAT
RESISTANCE
SAMPLING
SILICON
WAFERS
WEATHERABILITY
WEATHERING
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Summary: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. Army's camouflage, polyurethane topcoat MIL-C-46l68, "Chemical Agent Resistant Coating" (CARC) was applied to infrared (IR) cards and silicon wafers. After curing, the coating's 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 EMMA(QUA)*-NTW). Characterization of the binder's chemical changes during both natural and accelerated weathering processes was monitored using the FTIR. This final report summarizes the experimental results of the coating's resistance to the accelerated-weathering and outdoor-exposure conditions. Additionally, a brief description of the author's method is described for the preparation of silicon wafers and subsequent FTIR analysis.