Статья

Effects of graphene nanoplatelets and graphene nanosheets on fracture toughness of epoxy nanocomposites

M.M. ShokriehComposites Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering Iran University of Science and Technology Tehran 16846‐13114 IranS.M. GhoreishiComposites Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering Iran University of Science and Technology Tehran 16846‐13114 IranM. EsmkhaniComposites Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering Iran University of Science and Technology Tehran 16846‐13114 IranZhen ZhaoSchool of Chemical Engineering Shandong University of Technology 255049 Zibo Shandong China

2014en

ABI

Аннотация

ABSTRACT The effects of graphene nanoplatelets (GPLs) and graphene nanosheets (GNSs) on fracture toughness and tensile properties of epoxy resin have been studied. A new technique for synthesis of GPLs based on changing magnetic field is developed. The transmission‐electron microscopy and the Raman spectroscopy were employed to characterize the size and chemical structure of the synthesized graphene platelets. The critical stress intensity factor and tensile properties of epoxy matrix filled with GPL and GNS particles were measured. Influence of filler content, filler size and dispersion state was examined. It was found that the GPLs have greater impact on both fracture toughness and tensile strength of nanocomposites compared with the GNSs. For instance, fracture toughness increased by 39% using 0.5 wt% GPLs and 16% for 0.5 wt% GNSs.

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Идентификаторы

DOI: 10.1111/ffe.12191

Цитирования и источники

Цитирований: 2Использованных источников: 0

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