Void Volume Characterization of Coated Paper, 1996 International Printing & Graphic Arts Conference Proceedings
Kevin Ellis
International Paper
Dr. Jose Fripiat
University of Wisconsin at Milwaukee
Mercury Intrusion Porosimetry is used to characterize the size distribution of void volume in a cellulose and clay coated cellulose network. The mercury intrusion porosimetry data are then analyzed with fractal geometry. The results of this analysis show the coated paper samples to exhibit fractal behavior. The fractal dimensions for the coated samples vary between 2.18 and 2.78 for pore sizes ranging between 0.1 microns and approximately 4 microns. The observed fractal dimensions correlated to physical properties of the coated paper. The intrusion porosimetry data analysis is compared to that developed by Friesen and Mikula. Both techniques rank the samples in the same order. The porosimetry analysis developed for this work statistically differentiated the 4 coated samples, while the resolution of the Friesen and Mikula method is not as good.