Viscoelastic properties and filler dispersion in carbon black‐filled and silica‐filled cross‐linked natural rubbers
作者： Atsushi Kato , Yuko Ikeda , Ryota Tsushi , Youta Kokubo
DOI: 10.1002/APP.39487
关键词:
摘要: The activation energies (ΔEJ ′ and ΔEJ″) calculated from the temperature dependence of storage compliance (J′) loss (J″) carbon black (CB)-filled, hydrophobic silica- hydrophilic silica-filled cross-linked natural rubbers (NRs) were found to be less than 15 kJ mol−1, which corresponds physical range van der Waals interaction. results three-dimensional-transmission electron microscopy measurements indicate that closest distance (dp) between two neighboring nanofiller aggregates centers decreased sharply with increasing loading tended become constant at a around 30 phr or higher. For all samples examined, there regions related elastic deformation energy, critical dp value was in order CB > silica = silica. Additionally, ΔEJ′ developed region longer ΔEJ″. On other hand, ΔEJ″ occurred after formation filler network larger ΔEJ′. is assumed slippage junction rearrangement network. Therefore, on suggests interaction layer NR has least energy levels. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 2594–2602,
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