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2.2.5. Porosity Measurement

MA Muhammad Akhlaq
AA Abul Kalam Azad
IU Inam Ullah
AN Asif Nawaz
MS Muhammad Safdar
TB Tanima Bhattacharya
AU A. B. M. Helal Uddin
SA Syed Atif Abbas
AM Allan Mathews
SK Sukalyan Kumar Kundu
MM Mireia Mallandrich Miret
HM H. C. Ananda Murthy
HN H. P. Nagaswarupa
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To determine the porosity of Gel/PVA hydrogel discs, each disc was measured before immersion in absolute ethanol for 24 h. Each disc was then removed, and the excess ethanol wiped off with tissue paper to measure the weight. The porosity percentage was determined using the following Equation (7) [38]:

where “M2” represents the mass of the disc after removal from the ethanol solvent, “M1” represents the mass of the disc before immersion in the ethanol solvent, “ρ” represents the density of the absolute ethanol and “V” represents the volume of the hydrogel disc.

Copyright and License information:  ©2021 by the authors.
Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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