Morphology and performance of styrene butadiene rubber filled with modified graphite nanoplatelet and carbon black

Abstract

In our work, effects of 2-mercapto-1-methylimidazole modified graphite nanoplatelet (MMI-GN) and carbon black (CB) on static and dynamic mechanical properties of styrene butadiene rubber (SBR) composites were studied. MMI-GN is synthesized by ball-mill process, and the result reveals that π-π interactions existed between MMI and GN. The results demonstrate that the static and dynamic mechanical performances of SBR/CB/MMI-GN composites are significantly improved over these of SBR/CB and SBR/CB/GN composites. Compared with SBR/CB, the tensile strength, tear strength, and modulus at 300% elongation of SBR/CB/MMI-GN-3 are greatly improved by 45%, 27%, and 4%, respectively. And the rolling resistance of SBR/CB/MMI-GN-3 is reduced by 3.7% with remaining almost unchanged in the wet grip property. The superiority of MMI-GN in the enhancement for the overall performance of SBR/CB composites is attributed to the well dispersion of GN throughout the SBR matrix and the enhanced interfacial interactions between GN and the SBR matrix. This work might expedite synthesis of the graphite-based materials for enhancing rubber composites, and enlarge the potential applications of modified graphite to fabricate the high-performance rubber composites.

The Synergy of Double Cross-linking Agents on the Properties of Styrene Butadiene Rubber Foams

“…The trans >C=CH- (961 cm −1 ) and the vinyl (>C=CH 2 , 905 cm −1 ) are assigned to the SBR backbone38. The characteristic absorption of -C-S- stretching deformation at 1085, 692 cm −1 and 476, 428 cm −1 (related to -S-S- stretching deformation)39 is explained by sulfur cross-linking as shown in Fig.…”

Mechanical and tribological performance of acrylonitrile‐butadiene rubber/carbon black/cryptocrystalline graphite composites

“…27,28 T g , an important glass transition parameter reflecting the segmental motion of rubber chains, would increase or decrease with the addition of fillers. 17,29,30 What is more, some related studies reported that T g remains unchanged or shows no obvious tendency with the increase of filler content in some cases, 27,31 whose variation is affected by the molecular weight and polarity of rubber, the characteristics of fillers, and so on. 27,29 The results of T g in this work showed no distinct tendency with the increase of CG, which was consistent with the results reported in Reference 27, 31.…”

“…Several peaks at 31.6 , 34.3 , and 36.2 , respectively represented the (100), (002), and (101) diffraction peaks of zinc oxide. 17 Figure 5 (a-d) shows the surface morphology of freeze-fractured NBR composites with different CG loadings. Obviously, CG showed good dispersion in the NBR matrix.…”

“…The experimental parameters were assigned to the characterization of the glass transition temperature, namely, T g , the values of the heat capacity step ΔC pn and weight fraction of immobilized polymer layer χ im . 17,18 ΔC pn and χ im were calculated by Equations (1) and (2).…”

Synthesis, characterization, processability, mechanical properties, flame retardant, and oil resistance of chlorinated acrylonitrile butadiene rubber

“…In recent years, the designing of new polymeric material and modification of existing polymers for superior properties got great research emphasis. This is because the remarkable advances in polymer industry have a large impact on our daily life, especially clothing, transportation, energy, and medicine . A lot of research has been made over the last several years on chemical functionalization of conventional elastomers by using different reactive groups for producing potentially important materials with different mechanical thermal, electrical, and viscoelastic properties in addition to their specific attributes .…”