Nuclear magnetic resonance relaxation analysis of liquid water 1H nuclei in real porous media (carbonate rocks) with different pore space architecture, polluted with calcium nitrate, is presented to study the kinetics of water condensation and salt deliquescence inside the pore space. These phenomena are responsible for deterioration of porous materials when exposed to environmental injury by pollution in a humid atmosphere. The experiment is performed by following in time the formation of liquid water inside the pore space by T1 and T2 relaxation time distributions. volume ratio.
M. Gombia, V. Bortolotti, R.J. S. Brown, M. Camaiti, L. Cavallero, P. Fantazzini (2009). Water vapor absorption in porous media polluted by calcium nitrate studied by time domain Nuclear Magnetic Resonance. JOURNAL OF PHYSICAL CHEMISTRY. B, CONDENSED MATTER, MATERIALS, SURFACES, INTERFACES & BIOPHYSICAL, 113, 10580-10586 [10.1021/jp902781f].
Water vapor absorption in porous media polluted by calcium nitrate studied by time domain Nuclear Magnetic Resonance
GOMBIA, MIRKO;BORTOLOTTI, VILLIAM;CAMAITI, MARA;FANTAZZINI, PAOLA
2009
Abstract
Nuclear magnetic resonance relaxation analysis of liquid water 1H nuclei in real porous media (carbonate rocks) with different pore space architecture, polluted with calcium nitrate, is presented to study the kinetics of water condensation and salt deliquescence inside the pore space. These phenomena are responsible for deterioration of porous materials when exposed to environmental injury by pollution in a humid atmosphere. The experiment is performed by following in time the formation of liquid water inside the pore space by T1 and T2 relaxation time distributions. volume ratio.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
