The Friction Properties of Polyvinyl Alcohol/Graphene Oxide Hydrogels as Cartilage Replacement

Yan Shi; Dang Sheng Xiong; Jian Liang Li

doi:10.4028/www.scientific.net/KEM.739.152

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 739The Friction Properties of Polyvinyl...

The Friction Properties of Polyvinyl Alcohol/Graphene Oxide Hydrogels as Cartilage Replacement

Abstract:

In the present study, the poly (vinyl alcohol) (PVA)/graphene oxide (GO) hydrogels were synthesized by the repeated freeze-thaw method. The microstructure of PVA/GO hydrogels was characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, and scanning electron microscopy (SEM). The effects of GO content, lubrication condition, load and sliding speed on the friction properties of PVA/GO hydrogels were investigated. The results showed that the fracture morphology of PVA/GO hydrogels showed a layered-structure with uniformly dispersed GO sheets in PVA matrix. The friction coefficient of PVA/GO hydrogels decreased with the increase of GO content and sliding speed. With the increase of bovine serum and load, the friction coefficient of hydrogels decreased first and then increased.

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Periodical:

Key Engineering Materials (Volume 739)

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152-156

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https://doi.org/10.4028/www.scientific.net/KEM.739.152

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Online since:

June 2017

Authors:

Yan Shi, Dang Sheng Xiong*, Jian Liang Li

Keywords:

Friction Coefficient, Graphene Oxide, Hydrogel, Polyvinyl Alcohol

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