Study on the Damping Properties of Nitrile- Butadiene Rubber Reinforced by Graphene Derivative.

In this paper, graphene oxide (GO) was prepared by modified Hammer's method using graphite, which was then modified with silane coupling agent (MGO). With two-roll mill mixing method, GO was used as filler and composites like nitrile-butadiene rubber (NBR)/GO(MGO) composites and nitrile-butadiene rubber (NBR)/ 2,2'-methylenebis(6-tert-butyl-4-methyl-phenol) (AO-2246)/ GO(MGO) composites were prepared. Fourier Transform Infrared Spectrometer (FT-IR), Atomic Force Microscope (AFM) and Scanning Electron Microscope (SEM) were used to observe and study the molecular structure and morphology of GO, MGO and the composites. Dynamic Mechanical Analyzer (DMA) was used to study the damping properties of the composites. The composites reinforced by GO and MGO exhibited better damping and mechanical property. The damping property of NBR/GO composites weakens but the damping property of NBR/AO-2246/GO composites enhances with increase graphene oxide (GO). The damping property of the composites is enhanced by the addition of MGO. The main reason of the excellent properties of the graphene derivatives is its structural characteristics and the associated hydrogen bonds in the structure. [ABSTRACT FROM AUTHOR]