Effect of graphene on polar and nonpolar rubber matrices

Abstract

Background: So far, the effect of graphene oxide (GO) and reduced graphene oxide (rGO) in rubber matrix has not been well established.

EVA Film Reinforced with Acid Functionalized Graphene Nanoplatelets as a Transparent Barrier Layer to Enhance the Durability of Solar Cells

“…In another word, it seems that the crosslinked density of EVA increased with the amount of GNP. The above phenomena were similar to that was observed by Mensah et al [14] in a study on the effect of graphene oxide (GO) and reduced graphene oxide (rGO) on properties of nitrile rubber (NBR) and ethylenepropylene copolymer (EPDM). In that case, it was found that the addition of GO/rGO into the rubbers introduced additional crosslinks.…”

“…It was also found that the optical transparency of the polymer film was maintained to 95% after 0.001 wt% of the GO was added. Recently, Mensah et al [14] attempted to elucidate the effect of both graphene oxides (GO) and the reduced GO in the nitrile rubber (NBR) and the ethylene propylene diene copolymer (EPDM). It was found that the reduced graphene oxides are more compatible with the NBR rubber than with the less polar EPDM.…”

Electrical conductivity and mechanical properties, free volume, and γ‐ray transmission of ethylene propylene diene monomer/butadiene rubber composites

“…We et al stated that the CB fillers were aggregated in nonpolar (high density polyethylene [HDPE] while in polar polymers such as polymethyl methacrylate [PMMA]), the dispersion of the fillers was improved. It is well known that the EPDM is nonpolar polymer and BR is also nonpolar polymer . The micrographs of the fractured surfaces of the EPDM/BR composites loaded with 50 phr carbon black for unirradiated samples using SEM are displayed in Figure .…”

Bio-elastomer nanocomposites reinforced with surface-modified graphene oxide prepared via in situ coordination polymerization

“…43,44 The T g corresponding to PF-1 and PMy-1, both without GO, was slightly lower than those having GO at 0.5 wt% (PF-2 and PMy-2), which is attributed to the restriction of the polymer chain mobility due the presence of GO which presumably constrains the molecular relaxation and thus promoting an increase in the T g . 45,46 On the other hand, when m-GO was used instead of GO, the T g of the polyterpenes tends to decrease. The m-GO seems to reduce the cohesive forces through the polymer chains (acting as plasticizer), causing a decrease in T g .…”