Synergistic effect of graphene with graphene oxide, nanoclay, and nanosilica in enhancing the mechanical and barrier properties of bromobutyl rubber/epoxidized natural rubber composites

Abstract

The present work aims to investigate the effect of hybrid nanofillers in bromobutyl rubber/epoxidized natural rubber (ENR 50) composites for developing highly air‐impermeable nanocomposites. The nanocomposites with hybrid nanofillers were prepared by a simple melt mixing method, and the morphology of the developed nanocomposites was studied using X‐Ray diffraction, transmission electron microscopy, and atomic force microscopy. Improvement in the mechanical, barrier and dynamic properties can be observed for hybrid nanocomposites compared to the composites filled with individual graphene nanoplatelets (GNPs). The strong interfacial attraction between GNP monolayers enhance its aggregation in nanocomposites. While, in the current study the results are showing that the addition of graphene oxide, nanoclay, and nanosilica enhances the dispersion of GNP in the composites. The homogeneous dispersion of GNP nanofillers will develop a tortuous pathway in the composites, which are responsible for their air barrier properties. Bound rubber content and dynamic strain measurements (Payne effect) show a maximum value for binary nanocomposites.

Structure, properties, and antibacterial behavior of nickel oxide reinforced natural rubber nanocomposites for flexible electronic applications

“…According to the publications that are now accessible, several scientific groups have recently conducted extensive research on metal oxide nanofillers. 17 These metal oxide nanofillers are found to be excellent in improving the material properties as they are highly crystalline with high surface area, surface energy, high aspect ratio and very fast diffusivities. 18 Among various available metal oxides, nickel oxide (NiO) is an inorganic material with versatile and tunable properties such as high magnetic permeability due to its ferromagnetic nature.…”

Variation of air permeability in bromobutyl rubber/epoxidized natural rubber composites: Influence of structure of filler particle

“…In tyre industries, general-purpose furnace black (GPF N660) with a particle size ranging from 40 to 50 nm is generally used for improving the mechanical properties of the tyre inner-liner. [19,20] The GPF carbon black is having a high structure with more number of branched and linear aggregates. The barrier properties of the rubbercomposites are mainly depending upon the dispersion of carbon black in the rubber matrix.…”

“…To overcome the deficiencies of pure BIIR composites, a 75:25 compositions of BIIR/ENR 50 blend was used and the blend ratio was optimized from previous studies. [11,20] The rubber composites of various carbon blacks were prepared by the simple melt mixing method and the morphology and barrier properties were measured by different characterization techniques and reported in this paper.…”

Fabrication of impermeable dense architecture containing covalently stitched graphene oxide/boron nitride hybrid nanofiller reinforced semi-interpenetrating network for hydrogen gas barrier applications

“…, a combination of two or more nanofillers) assisted the exfoliation of individual nanofillers, showing a synergistic effect in gas barrier applications. 28–30 Similar to graphene, hexagonal boron nitride (BN) exhibits a 2D planar structure composed of sp 2 hybridised alternative B and N atoms. BN has gained considerable interest as a reinforcing filler due to its high thermal conductivity, decomposition temperature, chemical stability, and electrical insulation properties.…”