Investigation of the relaxation properties of nitrile rubber/ graphene nanocomposites containing different acrylonitrile content
Paper ID : 1023-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:
The effects of graphene nano platelet (GNP) and acrylonitrile (ACN) content on the relaxation properties of nitrile rubber (NBR) prepared by melt intercalation method were studied. The compounding of samples was done in a two-roll mill. The formulation of nanocomposites based on incorporation of 3 part per hundred (phr) of GNP. After preparation of the samples, the relaxation behaviour of nanocomposites compared with the blends containing different ACN was investigated. In continue, the standard linear solid (SLS) model was used to predict the relaxation behaviour of samples. In the presence of GNP, the relaxation modulus was raised. The same procedure resulted in samples with higher ACN groups. The difference between initial and final relaxation modulus (ΔG') was raised by the addition of GNP to the NBR and samples with higher ACN content. The relaxation time (τ) of samples were calculated using standard linear solid (SLS) model. This parameter was higher in the nanocomposites and samples with higher ACN content.
Keywords:
“NBR”, “Graphene nano platelet”, “Acrylonitrile content”, “Relaxation modulus”, “SLS model”.
Status : Abstract Accepted (Poster Presentation)