The Effect of Epoxidized Natural Rubber and Two Kinds of Organoclay upon Molecular Interaction, Structure and Mechanical Properties of (Styrene-Butadiene Rubber/Acrylonitrile-Butadiene Rubber/Organoclay) Nanocomposites

Morphology and rheology of (styrene-butadiene rubber/acrylonitrile-butadiene rubber) blends filled with organoclay: The effect of nanoparticle localization

“…As mentioned in the experimental section, the polarity of C30B, due to its intercalant, is greater than that of C15A; therefore the more intercalation of NBR into the C30B can be attributed to the presence of the polar nitrile groups in the NBR which provides a greater compatibility between NBR with C30B than C15A (Monfared et al, 2014). In the SBR nanocomposites, the greater increment of interlayer space of C30B and C15A with respect to that in the corresponding NBR nanocomposites can be attributed to the higher Mooney viscosity of the SBR with respect to the NBR (Susmita and Bhowmick, 2004;Monfared et al, 2014). The XRD results for the rubber blend nanocomposites ( Fig.…”

“…Indeed the oxirane groups in the ENR have a tendency to promote more hydrogen bonds with the nitrile groups from the NBR, while the isoprene groups from ENR-50 have a good compatibility with C_C from SBR. Therefore, the presence of ENR at the interface provides compatibility between NBR and SBR; however, it should be noted that the chemistry of the reactions that occurred between the components of these blends needs further investigation (Monfared et al, 2014).…”

“…To prepare the compounds; in the first stage, mixing of the OC with rubber was carried out in an internal mixer (Brabender Plasticorder, Germany) at a temperature of 90°C and a rotor speed of 60 rpm for 20 min, and then the curing agent was added on a laboratory two roll mill at a temperature of 50°C. The samples were cured at a temperature of 160°C with respect to their cure times (t 90 ) obtained by the rheometric characterization technique as described in our previous work (Monfared et al, 2014). The ASTM D3182 "standard laboratory mold" was used for the preparation of vulcanized sheets.…”

“…Many researchers have tried to make this blend compatible. In our previous work, the effects of epoxidized natural rubber (ENR) and two different kinds of OC on compatibilization of this blend was explained (Monfared et al, 2014). In this study by means of X-ray diffraction (XRD) analysis, field emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM), energy dispersive X-ray spectroscopy (EDS) and measuring melt linear viscoelastic properties in conjunction with theoretical analysis, the morphology of the blend and also localization of the used nanoparticles were investigated in the SBR/NBR blends containing cloisite 30B (C30B) or cloisite 15A (C15A).…”

“…Comparison XRD spectra of C30B and C15A with those of (a) SBR and NBR in presence of C30B and C15A, (b) SBR/NBR 80/20, 20/80 in presence of C30B and C15A, (c) SBR/ NBR 80/20 in presence of C30B and ENR[Monfared et al, 2014].…”