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Materiale Plastice
Cite as: Mater. Plast.
https://doi.org/10.37358/Mat.Plast.1964

OSIM Nr. R102356
ISSN Print 0025-5289
ISSN Online 2668-8220
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Materiale Plastice (Mater. Plast.), Year 2011, Volume 48, Issue 4,





George Stiubianu, Alexandra Nistor, Angelica Vlad, Maria Cazacu Modification of Water Sorption Capacity of Polydimethylsiloxane based Composites by Incorporation of Lignin


Abstract:
Lignin, a natural renewable material, was incorporated in a series of polydimethylsiloxane/silica composites. Besides the effect as bulk filler, the presence of lignin determines the change of some properties among them being surface properties that were evaluated by contact angle and water sorption measurements. The contact angles were determined in static regime by using the sessile drop technique. Dynamic water vapour sorption was applied to register the sorption/desorption isotherms and kinetic curves. The sorption type and maximum vapour sorption capacity were evaluated based on these data. The results were correlated with the composition of the prepared materials. Keywords: surface properties; siloxanes; composites; lignin



Issue: 2011 Volume 48, Issue 4
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