ana glz - Academia.edu (original) (raw)
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JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY KAKINADA
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Papers by ana glz
In this work, we exploit the bidimensional structure and high stiffness of graphene to improve th... more In this work, we exploit the bidimensional structure and high stiffness of graphene to improve the tribological response of nylon-based composites. Graphene nanoplatelets, coupled with polytetra-fluoroethylene microparticles, synergistically improve the friction coefficient and wear rate, as well as the adhesion to the substrate. The enhancement, as high as threefold for both friction and wear rate at the optimal graphene concentration (0.5% in weight), depends upon the formation of a continuous, robust transfer film with the steel rubbing counterpart, as shown by Raman measurements. The graphene-nylon coating also shows threefold improved adhesion to the underlying substrate, attributed to the high surface energy of graphene.
In this work, we exploit the bidimensional structure and high stiffness of graphene to improve th... more In this work, we exploit the bidimensional structure and high stiffness of graphene to improve the tribological response of nylon-based composites. Graphene nanoplatelets, coupled with polytetra-fluoroethylene microparticles, synergistically improve the friction coefficient and wear rate, as well as the adhesion to the substrate. The enhancement, as high as threefold for both friction and wear rate at the optimal graphene concentration (0.5% in weight), depends upon the formation of a continuous, robust transfer film with the steel rubbing counterpart, as shown by Raman measurements. The graphene-nylon coating also shows threefold improved adhesion to the underlying substrate, attributed to the high surface energy of graphene.