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Gu Xiaohong Nguyen Tinh Sung Li-Piin VanLandingham Mark R. Fasolka Michael J. Martin Jonathan W. Jean Y. C. Nguyen Diep Chang Nei-Kai Wu Tsun-Yen 《Journal of Coatings Technology and Research》2004,1(3):191-200
Surface properties of a polymeric coating system have a strong influence on its performance and service life. However, the
surface of a polymer coating may have different chemical, physical, and mechanical properties from the bulk. In order to monitor
the coating property changes with environmental exposures from the early stages of degradation, nondestructive techniques
with the ability to characterize surface properties with micro- to nanoscale spatial resolution are required. In this article,
atomic force microscopy has been applied to study surface microstructure and morphological changes during degradation in polymer
coatings. Additionally, the use of AFM with a controlled tip-sample environment to study nanochemical heterogeneity and the
application of nanoindentation to characterize mechanical properties of coatings surfaces are demonstrated. The results obtained
from these nanometer characterization techniques will provide a better understanding of the degradation mechanisms and a fundamental
basis for predicting the service life of polymer coatings.
Presented at the 81st Annual Meeting of the Federation of Societies for Coatings Technology on November 12–14, 2003, in Philadelphia,
PA. 相似文献
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