Title :
Tribology of poly(vinyl alcohol)-carbon nanotube composites
Author :
Xuefeng Li ; Shaoxian Peng
Author_Institution :
Sch. of Chem. & Environ. Eng., Hubei Univ. of Technol., Wuhan, China
Abstract :
A novel water-soluble poly(vinyl alcohol)-carbon nanotubes (PVA-CNTs) was prepared. Results of four-ball tribotester indicated that both the load-carrying capacity and anti-wear of the PVA-CNTs were superior to those PVA owing to the additive reinforced by CNTs. Based on scan electron microscopy examinations of worn surfaces, their lubrication mechanism was deduced preliminarily. The morphology and microtribological properties of PVA-CNTs thin films on mica were investigated by atomic force microscopy/friction force microscopy (AFM/FFM). The friction of the films was stable with the change of applied load and the friction coefficient decreased significantly as the CNTs addition. The results show that the rigid rod-like CNTs in polymer would enhance load-bearing and anti-wear properties of the thin films.
Keywords :
atomic force microscopy; carbon nanotubes; filled polymers; friction; lubrication; nanocomposites; nanofabrication; scanning electron microscopy; C; antiwear properties; atomic force microscopy; four-ball tribotester; friction coefficient; friction force microscopy; load-carrying capacity; lubrication mechanism; poly(vinyl alcohol)-carbon nanotube composites; rigid rod-like CNT; scanning electron microscopy; tribology; worn surfaces; Additives; Films; Fluids; Force; Friction; Microscopy; Surface morphology; Carbon nanotubes; Lubrication additive; Poly(vinyl alcohol); Tribological property;
Conference_Titel :
Electronic and Mechanical Engineering and Information Technology (EMEIT), 2011 International Conference on
Conference_Location :
Harbin, Heilongjiang, China
Print_ISBN :
978-1-61284-087-1
DOI :
10.1109/EMEIT.2011.6023316
