Mechanical and thermal properties of graphene oxide/ultrahigh molecular weight polyethylene nanocomposites

Abstract

Graphene oxide (GO) was prepared according to a modified Hummers method, and a range of GO/ultrahigh molecular weight polyethylene (UHMWPE) composites were fabricated then their mechanical and thermal properties were investigated.

Tribological performance of ultra high molecular weight polyethylene nanocomposites reinforced with graphene nanoplatelets

“…. Also the microhardness attained in the current research (6.83 HV) is quite higher than the maximum (6.5 and 5 HV) obtained in previous research that used GO of equal amount to reinforce UHMWPE , respectively. The increase in hardness of all the GNPs reinforced UHMWPE composites over the pure matrix is due to the 2D nature of GNPs that enhances strong interfacial bond between the matrix and the reinforcement allowing efficient load transfer mechanism.…”

“…Also, hot pressing with carefully selected set of parameters can pave the way for the mass production of high quality UHMWPE nanocomposites. A comprehensive review has shown that several studies have been carried out on the behavior of UHMWPE‐graphene composite in terms of physical, mechanical, thermal, electrical, and biocompatible properties . However, very few studies have investigated the possible application of UHMWPE with graphene in the field of mechanical bearings .…”

SiO2‐covered graphene oxide nanohybrids for in situ preparation of UHMWPE/GO(SiO2) nanocomposites with superior mechanical and tribological properties

“…Nevertheless, a challenging task for this field is fabrication of UHMWPE nanocomposites with uniformly dispersed fillers . Polyolefin nanocomposites can be conceptually fabricated by solution compounding, melt blending, and in situ polymerization . However, UHMWPE, due to a lack of flowability and an appropriate solvent, can be produced by two former methods.…”

Comparison of graphene oxide and graphitic carbon nitride filled carbon–phenolic composites: Thermomechanical properties and role of the strong electronegativity of nanofillers

“…Figure shows the storage modulus, loss modulus, and glass‐transition temperature for the tested materials; they were obtained from the dynamic mechanical analysis patterns. The storage modulus presented in Figure (a) shows that the neat and filled composites exhibited a decrease in the rubbery plateau level up to temperatures approaching 250 °C; this was related to the degradation of PR . The storage modulus of the ag‐C 3 N 4 ‐filled composite was significantly higher than those of the neat and GO‐filled composites and could be maintained above 250 °C.…”