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Imparting Ultra‐Low Friction and Wear Rate to Epoxy by the Incorporation of Microencapsulated Lubricant?
Author(s) -
Guo Qing Bing,
Lau Kin Tak,
Zheng Bing Fa,
Rong Min Zhi,
Zhang Ming Qiu
Publication year - 2009
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200800257
Subject(s) - lubricant , lubrication , materials science , tribology , composite material , epoxy , friction coefficient , lubricity , dry lubricant , coefficient of friction
Abstract The incorporation of microcapsules containing lubricant oil into epoxy composites leads to materials with ultra‐low friction and wear performance. During sliding wear tests, the capsules are damaged by the asperities of the counterface, releasing the oil to the contact area. The lubrication effect of the released oil and the entrapment of wear particles in the cavities left by the ruptured capsules leads to a significant reduction of both the frictional coefficient and the specific wear rate. The approach provides the merits of fluid lubrication but excludes the drawbacks of external lubrication. A minute amount of lubricant oil is sufficient to improve the tribological properties significantly.