- Author
- Nguyen, T. | Byrd, W. E. | Bentz, D. P.
- Title
- Measuring Transport of Liquid Water Through Organic Coatings Adhered to a Substrate.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
- Book or Conf
- American Chemical Society. Proceedings. March 28-April 1, 1993, Denver, CO, 1-2 p., 1993
- Keywords
- substrates | water | organic coatings | FT-IR
- Abstract
- Water transport through a coating on a substrate is the subject of great interest in many areas involving a polymer film on a substrate, e.g., organic coatings, adhesives and sealants, asphalt pavement, and electronic packaging. There is currently no method available to measure this property. In previous publications, we described a method based on FTIR-multiple internal reflection spectroscopy (FTIR-MIR) for studying water in situ at the coating/metal (germanium and iron) interface. We also reported the application of this technique for obtaining qualtitative information on water at the coating/substrate interface. In this paper, we describe a method based on FTIR-MIR spectroscopy for measuring the diffusion coefficient of liquid water thorugh an organic coating adhered to a substrate.