Dynamic rheological study on nitrile butadiene rubber reinforced with different levels of graphene
Paper ID : 1609-ICNS
Authors:
Mohammad Barghamadi1, Mohammad Karrabi *2, Mir Hamid Reza Ghoreishy3, Somayyeh Mohammadian4
1Processing, Iran Polymer and Petrochemical Institute, Tehran, Iran, P. O. Box. 14965-115
2Polymer processing, Rubber group, Iran Polymer and Petrochemical Institute, Tehran, Iran, P. O. Box. 14965-115
3Rubber group, Processing, Iran Polymer and Petrochemical Institute, Tehran
4Polymer group, Payame noor University, Tehran, Iran
Abstract:
In this study, the effects of the viscoelastic behavior of nanocomposites based on nitrile butadiene rubber (NBR) reinforced with various levels of graphene nanoplatelets (GNPs) were investigated. The samples prepared by melt intercalation method by using of two-roll mill. In order to investigate the viscoelastic behavior of NBR based nanocomposites reinforced by different levels of GNPs, the frequency sweep test was applied. The results showed that by increasing the nanoparticle levels, the storage modulus (G') increased. Furthermore, the samples containing higher GNPs content, the viscous shear modulus (G”) also increased. In order to determine which moduli is most significant by increasing GNPs, the ratio of two parameters, i.e. damping factor (tan δ = G'/ G") was used. The results showed that by the increasing GNPs content, the damping factor (tan δ) increased. This result attributed to the more increase of viscouse motions such as filler–matrix disconnections and filler–filler breakdowns in comparison to the elastic motions by enhancing the GNPs.
Keywords:
“Graphene”, “Frequency sweep test”, “Storage modulus”, “Loss modulus”, “Damping factor”.
Status : Abstract Accepted (Oral Presentation)