期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 139, 期 15, 页码 -出版社
WILEY
DOI: 10.1002/app.51935
关键词
graphene oxide (GO); polyethylene glycol (PEG); film; friction
资金
- National Key Research and Development Program of China [2019YFB1707205]
- PhD research startup foundation of Xi'an Polytechnic University [107020516]
- Xi'an Key Laboratory of Modern Intelligent Textile Equipment [2019220614SYS021CG043]
This study prepared graphene oxide-polyethylene glycol (GO-PEG) composite film with good lubrication effect by gradient heating, and the film has broad application prospects in the low speed and heavy load of large machinery rotation or sliding parts. The addition of GO greatly enhances the mechanical properties of the composite films, reducing the friction coefficient by 50% and the wear rate by 85%.
In the low speed and heavy load of large machinery rotation or sliding parts, the application of copper base ink plate is very extensive. In this study, the graphene oxide-polyethylene glycol (GO-PEG) thin films were prepared on the surface of steel plates by gradient heating, and we simulated the friction and wear state of the solid material when it was brought to the metal surface. And the Fourier transform infrared spectroscopy, X-ray diffraction, X-ray energy spectrum analysis, Raman spectroscopy (Raman), and thermogravimetric analysis were used to characterize the structure and properties. The tribological results show that the GO-PEG composite film prepared by gradient temperature rise method has good lubrication effect. The addition of GO greatly enhances the mechanical properties of the composite films. Compared with the single GO film, the friction coefficient is reduced by 50% and the wear rate is reduced by 85%. The unique characteristics of PEG solved the accumulation phenomenon caused by the strong van der Waals force between GO, then the PEG adhered on GO surfaces caused good lubrication effect. At the same time, the composite film has a broad application prospect in the working environment with little oil and no oil.
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