Jintao Pang, Xianhao Le, Qian Zhang, Changju Wu, Jin Xie
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引用次数: 1
Abstract
In this paper, the shear modulus of uniform graphene oxide (GO) film is extracted using a quartz crystal resonator (QCR). The GO film is prepared by drop-casting and vacuum filtration methods. The tunable mechanical parameters of GO film with various humidity (from 10% to 90% relative humidity) have been fully investigated. The interlayer shear modulus (∼500 MPa) of GO film by vacuum filtration shows a strengthening with increasing humidity, which is ascribed to the strong hydrogen bonding networks made up of oxygen-containing functional groups of GO film and intercalated water molecules. The interlayer shear modulus (∼27 MPa) of GO film by drop-casting displays a degraded strength. These obtained properties provide good guidance to serve the practical realization of the GO-based project.
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