Method and arrangement for determining at least one pore-related parameter of a porous structure
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United States of America Patent
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May 4, 2021
Grant Date -
Jul 25, 2019
app pub date -
Jun 21, 2017
filing date -
Jun 22, 2016
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Abstract
In the present invention, a method for determining at least one pore-related parameter of a porous structure is provided. In a preferred embodiment, an enhanced evapoporometry (EP) technique is provided to determine pore size distribution of continuous pores of a porous structure. In this enhanced EP technique, a volatile liquid, such as isopropoyl alcohol or water, is supplied to one side of a porous structure in order to enable the volatile liquid to penetrate and saturate the porous structure through capillary force. Thereafter, an immiscible non-volatile liquid, such as glycerol, mineral oils, silicon oils or hydrophilic ionic liquid, is supplied to the one side of the porous structure. As the volatile liquid evaporates progressively from the filled pores, the emptied pores may be immediately filled by the non-volatile liquid drawn upwards by capillary action. This prevents formation of a t-layer formed from the adsorption of vapour emanating from the volatile liquid that is used to saturate the pores.
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