Properties of POSS/HNBR Elastomer Nanocomposites

Abstract:

A series of composite materials containing polyhedral oligomeric silsesquioxanes (POSS) and hydrogenated butadiene-acrylonitrile rubber (HNBR) were prepared. The goal of the work was to evaluate the effect of the type and reactivity of functional groups in the POSS cage on properties of the resulting elastomeric nanocomposites. The paper presents some of the preliminary results obtained from the studies. The results indicate that incorporation of POSS into silica-filled HNBR elastomer network increases interfacial interactions of the systems and the POSS molecules can be successfully used as coagents of crosslinking towards the elastomer matrix and efficient additives improving the mechanical properties of elastomeric nanocomposites. Furthermore, evaluation of changes in mechanical properties, induced in a result of POSS/HNBR composites ageing, show that the inclusion of POSS in the HNBR network is directly influencing the stabilizing effect and improves the ageing resistance of elastomer composites.

• Periodical: Materials Science Forum (Volume 714)
• Pages: 175-181
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.714.175
• Online since: March 2012
• Authors: Anna Kosmalska, Anna Strąkowska, Marian Zaborski
• Keywords: Elastomeric Composites, Hydrogenated Butadiene-Acrylonitrile Rubber, Nanocomposite, Silsesquioxanes

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