2013
DOI: 10.1002/app.38925
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Effects of the amount of fillers and of the crosslink density on the mechanical behavior of carbon‐black filled styrene butadiene rubbers

Abstract: is an open access repository that collects the work of Arts et Métiers ParisTech researchers and makes it freely available over the web where possible. ABSTRACT: Several carbon-black filled styrene-butadiene rubbers are subjected to monotonic uniaxial tension tests in order to investigate the effects of the amount of fillers and of the crosslink density on their mechanical properties. The Young modulus, the volume changes associated with material damage and the stretch to failure are extracted and discussed. R… Show more

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Cited by 27 publications
(16 citation statements)
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“…The results are quite similar for all samples, with a mean value of −48% and a standard deviation of 7%, and its physical origin is probably the material cavitation leading to volume changes [42]. Nevertheless, one observes that post-cured samples are systematically less sensible to this phenomenon.…”
Section: Mechanical Characterizationmentioning
confidence: 72%
See 1 more Smart Citation
“…The results are quite similar for all samples, with a mean value of −48% and a standard deviation of 7%, and its physical origin is probably the material cavitation leading to volume changes [42]. Nevertheless, one observes that post-cured samples are systematically less sensible to this phenomenon.…”
Section: Mechanical Characterizationmentioning
confidence: 72%
“…From the displacement of droplet barycenters, one can compute the axial strain ε yy = ( Y/L 0 ), the transversal one ε xx = ( X/l 0 ) and the Poisson's ratio = − (ε xx /ε yy ). Notice that although the Poisson's ratio is generally assumed to be constant, near to 0.5 (incompressibility), some research has shown that volume changes occur within elastometric materials during deformation processes and are attributed to damage mechanisms [40,41,35,42] -so the Poisson's ratio decreases with deformation, depending on the damage. Thus, for the sake of clarity we define the initial and the ruptured Poisson's ratios, meaning the undamaged and damage ratio.…”
Section: Measurement Methodsmentioning
confidence: 99%
“…The value of the modulus agrees well with equation (2) for rubber filled with glass beads and medium thermal blacks, but exceeds the value estimated by equation (2) with carbon black holding a large surface area. Figure 2 shows the relationship between the volume fraction of carbon black (f) and the Young's modulus (E ) of styrenebutadiene rubber (SBR) filled with carbon black 9) , in which closed circles with error bar represent experimentally obtained results and broken line represents theoretical value estimated by equation (2). The value of the Young's modulus of SBR increases as the volume fraction of carbon black increases, which is consistent with the value estimated by equation (2), implying that the volume effect of carbon black is attributed to the spherical particles present in the rubber medium.…”
Section: Volume Effectmentioning
confidence: 99%
“…Consequently an investigation on the network structure, i.e., crosslink density, noncoupled network defects, and crosslink spatial distribution, of filled rubber is important. Most published works highlight the impact of filler loading on mechanical properties and crosslink density of rubbers . Some studies have focused on the effect of filler on the network structure of various rubbers .…”
Section: Introductionmentioning
confidence: 99%
“…Most published works highlight the impact of filler loading on mechanical properties and crosslink density of rubbers. [3][4][5][6][7] Some studies have focused on the effect of filler on the network structure of various rubbers. 1,2,[8][9][10] Unfortunately those works focus on relatively low loadings of filler whereas most technical applications of EPDM need high filler loadings.…”
Section: Introductionmentioning
confidence: 99%