TY - JOUR
T1 - Complementary effect of graphene oxide-carbon nanotubes in fluoro-elastomer matrix
AU - Mensah, Bismark
AU - Martey, Newman Adjiri
AU - Antwi, Boniface Yeboah
AU - Essien, Emmanuel
N1 - Publisher Copyright:
© The Author(s) 2026. This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).
PY - 2026/1/1
Y1 - 2026/1/1
N2 - The complementary advantage of carbon nanotubes (C) and graphene oxide sheets (G) was used to form composites with Fluoroelastomer (FKM) via melt solvent/solid mixing techniques and their properties were studied. The hybrid compositions demonstrated better physico-mechanical properties than the single-filled, at lower concentration of the G-loading. At high content of G-sheets, formations of agglomerates were observed, resulting in inferior properties. The hybrid composition FCG (1:1) recorded the highest tensile strength (∼47% > FKM), slightly higher than FCGa (0.1:0.3) by ∼1.9%. FCGa in turn, recorded the fastest cure properties (lowest T90 and highest CRI), higher cure rheo-mechanical strength indicators (ML, MH and ΔM), high thermal stability (84.3% > FKM based on weight residue (%)). FCGa also recorded the lowest energy dissipation (tanδ), and highest dielectric constant (ɛʹ), which were about 57.7% > FKM. It was observed that enhancement in properties of FCG was mainly due to high content of physical networks (—C—C— or —G—G— and —C—G—) while those in FCGa were mainly as results of chemical links (C—FKM—c—NT—G—FKM—c—G—).
AB - The complementary advantage of carbon nanotubes (C) and graphene oxide sheets (G) was used to form composites with Fluoroelastomer (FKM) via melt solvent/solid mixing techniques and their properties were studied. The hybrid compositions demonstrated better physico-mechanical properties than the single-filled, at lower concentration of the G-loading. At high content of G-sheets, formations of agglomerates were observed, resulting in inferior properties. The hybrid composition FCG (1:1) recorded the highest tensile strength (∼47% > FKM), slightly higher than FCGa (0.1:0.3) by ∼1.9%. FCGa in turn, recorded the fastest cure properties (lowest T90 and highest CRI), higher cure rheo-mechanical strength indicators (ML, MH and ΔM), high thermal stability (84.3% > FKM based on weight residue (%)). FCGa also recorded the lowest energy dissipation (tanδ), and highest dielectric constant (ɛʹ), which were about 57.7% > FKM. It was observed that enhancement in properties of FCG was mainly due to high content of physical networks (—C—C— or —G—G— and —C—G—) while those in FCGa were mainly as results of chemical links (C—FKM—c—NT—G—FKM—c—G—).
KW - crosslinking density
KW - fluorinated rubber (FKM)
KW - graphene oxide and dielectric constant
KW - tensile strength
UR - https://www.scopus.com/pages/publications/105026636427
U2 - 10.1177/09673911251410651
DO - 10.1177/09673911251410651
M3 - Article
AN - SCOPUS:105026636427
SN - 0967-3911
VL - 34
JO - Polymers and Polymer Composites
JF - Polymers and Polymer Composites
ER -