The Preparation of Graphite Oxide Molecular Deposition Films and Its Study by Atomic Force Microscopy
石墨氧化物分子沉积膜的制备及其摩擦学行为研究

The graphite oxide poly (diallyldimethyammonium chloride) ultra thin film was prepared by molecular deposition technology. Its structure was analyzed using an ultraviolet spectrometer and a Fourier transformation infrared spectrometer. The morphology and nanotribological properties of the film were investigated using an atomic force microscope. As the results, the GO PDDA ultra thin film obviously lowered the friction coefficient of the glass substrate, which might be attributed to the lower shear strength of the film as compared with that of the glass. The friction coefficient of the film decreased with increasing load, while the increase of the surface roughness of the film with different layer numbers led to increased friction coefficient.