Visco-elastic-plastic properties of natural rubber filled with carbon black and layered clay nanoparticles. Experiment and simulation

Garishin, O. K.; Shadrin, V. V.; Свистков, А. Л.; Соколов, А. К.; Stöckelhuber, Klaus Werner

doi:10.1016/j.polymertesting.2017.08.002

Cited by 10 publications

(1 citation statement)

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“…An example are the works related to the study of the elastomers properties filled with carbon black, carbon nanotubes, nanodiamonds, various mineral particles (montmorillonite, palygorskite, schungite etc.) (Rodgers & Waddel, 2013;Jovanovic et al, 2013;Le et al, 2015;Lvov et al, 2016;Mokhireva et al, 2017;He et al, 2015;Huili et al, 2017;Stöckelhuber et al, 2011;Garishin et al, 2017). A part from numerous experimental investigations, there are many theoretical works devoted to structural modeling of the physical-mechanical properties of materials, which takes into account the characteristic features of the internal structure and processes at micro-and nanolevels Reese, 2003;Österlöf et al, 2015;Ivaneiko et al, 2016;Raghunath et al, 2016;Plagge & Klüppel, 2017;Svistkov et al, 2016;Svistkov, 2010).…”

Section: Introductionmentioning

confidence: 99%

A new hypothesis on the mechanism of nano-filled elastomers reinforcement

Соколов

Garishin

Свистков

2018

Mech Adv Mater Mod Process

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Incorporation of active fillers to rubber markedly improves the strength properties and deformation characteristics of such materials. One possible explanation of this phenomenon is suggested in this work. It is based on the fact that for large deformations the binder (high-elastic, cross-linked elastomer) in the gaps between the filler particles (carbon black) is in a state close to the uniaxial extension. The greater part of polymer molecular chains are oriented along the loading axis in this situation. Therefore it can be assumed that the material in this state has a higher strength compared to other ones at the same intensity of deformation. In this paper, a new strength criterion is proposed, and a few examples are given to illustrate its possible use. It is shown that microscopic ruptures that occur during materials deformation happen not in the space between filler particles but at some distance around from it without breaking particle "interactions" through these gaps. The verification of this approach in modeling the stretching of a sample from an unfilled elastomer showed that in this case it works in full accordance with the classical strength criteria, where the presence in the material of a small defect (microscopic incision) leads to the appearance and catastrophic growth of the macrocrack.

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