The temperature-dependent properties of epoxy-functionalized graphene oxide/epoxy nanocomposites: insights from simulation and experiment

<abstract> <p>The physical and mechanical properties of graphene-reinforced epoxy (epoxy/graphene) in hygrothermal environment need to be comprehensively understood. This is because it is necessary to predict the durability of epoxy/graphene when epoxy/graphene is used in an aggressive environment with high humidity and high temperature. Based on the molecular dynamics method, the influences of water content (2, 4 and 6%) and temperature (298,333 and 368 K) on the physical and tensile properties of epoxy/graphene were studied in this research. The results showed that after the addition of graphene, the free volume fraction of epoxy and the diffusion coefficient of water molecules in the epoxy decreased, and the density, tensile strength and deformation performance of epoxy increased. In the hygrothermal environment, the tensile strength degradation rate of epoxy/graphene was lower than that of pure epoxy. The failure mechanism and mechanical response of epoxy/graphene during the tensile process in the nanoscale were revealed. The research results provide a reference for the design and performance optimization of epoxy/graphene composites in a hygrothermal environment.</p> </abstract>

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The temperature-dependent properties of epoxy-functionalized graphene oxide/epoxy nanocomposites: insights from simulation and experiment

Cited by 3 publications

References 42 publications

Investigation of the mechanical characteristics and thermal behavior of a polymer matrix by addition of different graphene oxide nanosheets: A molecular dynamics simulation

Investigation of the mechanical characteristics and thermal behavior of a polymer matrix by addition of different graphene oxide nanosheets: A molecular dynamics simulation

Tailoring polymer composites for critical thermal applications: a review on fibers, additives, coatings, aerogels, test methodologies

Effect of graphene on the properties of epoxy in hygrothermal environment by molecular dynamics method

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