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Journal of Porous Media
Импакт фактор: 1.49 5-летний Импакт фактор: 1.159 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN Печать: 1091-028X
ISSN Онлайн: 1934-0508

Выпуски:
Том 22, 2019 Том 21, 2018 Том 20, 2017 Том 19, 2016 Том 18, 2015 Том 17, 2014 Том 16, 2013 Том 15, 2012 Том 14, 2011 Том 13, 2010 Том 12, 2009 Том 11, 2008 Том 10, 2007 Том 9, 2006 Том 8, 2005 Том 7, 2004 Том 6, 2003 Том 5, 2002 Том 4, 2001 Том 3, 2000 Том 2, 1999 Том 1, 1998

Journal of Porous Media

DOI: 10.1615/JPorMedia.v19.i4.50
pages 339-346

DISPERSION OF A NONWETTING LIQUID IN A DISORDERED NANOPOROUS MEDIUM

Vladimir Borman
National Research Nuclear University MEPhI, Kashirskoe sh. 31, Moscow, 115409, Russia
Anton Belogorlov
1National Research Nuclear University MEPhI, Kashirskoe sh. 31, Moscow, 115409, Russia; A. V. Topchiev Institute of Petrochemical Synthesis RAS, Moscow, Russia
Alexey Grekhov
National Research Nuclear University MEPhI, Kashirskoe sh. 31, Moscow, 115409, Russia; A. V. Topchiev Institute of Petrochemical Synthesis RAS, Moscow, Russia
Vladimir Tronin
National Research Nuclear University MEPhI, Kashirskoe sh. 31, Moscow, 115409, Russia

Краткое описание

A dispersion transition in the Fluka 100 C8 and Fluka 100 C18 hydrophobic silica gels close in structural characteristics has been studied. Nonlinear dependences of the volume of the trapped liquid on the degree of filling, which have not yet been observed at the interaction of nonwetting liquids with nanoporous media, have been revealed. Two critical temperatures Tc1 ~ 330 K and Tc2 ~ 340 K have been found for the Fluka 100 C18−water system. At a temperature above Tc1, a transition occurs at a degree of filling of ~0.6 from the state of the system with a linear increase in the volume of the trapped liquid with the degree of filling to the state in which the dispersion transition occurs at ~0.6. At temperatures above Tc2, the fraction of the trapped liquid is small and independent of the temperature and degree of filling. When Fluka 100 C8 is filled with water, no abrupt change in the volume of the trapped liquid with an increase in the degree of filling has been detected in the temperature range under study of T = 300−360 K. In this case, a linear increase in the volume of the trapped liquid with the degree of filling has been observed.


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