Mechanical Responses of a Polymer Graphene-sheet Nano-sandwich

Xiguang Li, Juliusz Warzyroda, Gregory McKenna

Research output: Contribution to journalArticlepeer-review


The interfacial mechanics and reinforcement by the graphene sheets in polymer matrix nanocomposites are important to their understanding. However, the methods available for their investigation remain a challenge. Here we report on a novel study in which the mechanical responses of a nano-sandwich model structure made of a single graphene sheet sandwiched between ultrathin polymer layers are determined using a nano-bubble inflation method. The stress-strain behavior of the graphene nano-sandwich shows that significant reinforcement is obtained at small strains and that the method also provides a measurement of the interfacial shear strength. In addition, the study provides data related to internal stresses that develop between the graphene layer and the polymer sandwich faces.
Original languageEnglish
Pages (from-to)4976-4982
StatePublished - Sep 15 2014


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