Structure and Properties of Hydrogenated Nitrile-Butadiene Rubber/Organo Montmorillonite Nanocomposites

Abstract:

Organo-montmorillonite (OMMT) was compounded with Hydrogenated Nitrile-Butadiene Rubber （HNBR）(50% epoxidation) to prepare nanocomposites by melt mixing method. The nanometer scales of organoclays in rubber matrix were determined by X-ray diffraction testing, the exfoliated/intercalated structures of OMMT in HNBR were confirmed by transmission elector microscopy. The increases in tensile module and strength of HNBR/OMMT nanocomposites vulcanizaters were caused by the better interactions between rubber macromolecule chains and organoclay layers. The air-aging properties of nanocomposites enhanced by the increasing content of OMMT, which was leaded by the barrier characterize of nanodisperse OMMT layers. DMA test showed that the Tgs of HNBR/OMMT shifted to a higher temperature, as verified by the crosslinking density determination.

• Periodical: Applied Mechanics and Materials (Volumes 110-116)
• Pages: 3818-3824
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.110-116.3818
• Online since: October 2011
• Authors: Xiao Ping Wang, De Min Jia, An Min Huang
• Keywords: Hydrogenated Nitrile-Butadiene Rubber, Montmorillonite, Nanocomposite

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