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Barrier properties in hydrogenated acrylonitrile butadiene rubber compounds containing organoclays and perfluoropolyether additives
Author(s) -
Valsecchi Roberto,
Torlaj Luca,
Turri Stefano,
Tonelli Claudio,
Levi Marinella
Publication year - 2010
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.32995
Subject(s) - acrylonitrile , natural rubber , materials science , elastomer , dynamic mechanical analysis , hildebrand solubility parameter , nitrile rubber , composite material , solubility , ultimate tensile strength , nanocomposite , chemical engineering , thermal diffusivity , scanning electron microscope , polymer chemistry , polymer , chemistry , copolymer , organic chemistry , physics , quantum mechanics , engineering
Elastomeric compounds from hydrogenated acrylonitrile butadiene rubber, organomodified clay, and perfluoropolyether (PFPE) additives were prepared. Characterization of the materials included X‐ray diffraction, dynamic mechanical analysis (DMA), tensile mechanical properties testing, environmental scanning electron microscopy, and solvent permeability measurements, from which the solubility coefficient ( S ) and diffusion coefficient ( D ) values were determined. A synergistic effect of the two additives was observed because the presence of clay reduced D, whereas PFPE mainly decreased S. Increasing the mixing time facilitated the dispersion of the clay layers. DMA and the diffusivity data were used to estimate the aspect ratios of the solid inclusions in the rubber. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011