Optimization of tribological and mechanical properties of epoxy through hybrid filling
Article
Article Title | Optimization of tribological and mechanical properties of epoxy through hybrid filling |
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ERA Journal ID | 3724 |
Article Category | Article |
Authors | Guo, Qing Bing (Author), Lau, Kin-Tak (Author), Rong, Min Zhi (Author) and Zhang, Ming Qiu (Author) |
Journal Title | Wear |
Journal Citation | 269 (1-2), pp. 13-20 |
Number of Pages | 8 |
Year | 2010 |
Place of Publication | Amsterdam, Netherlands |
ISSN | 0043-1648 |
1873-2577 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.wear.2010.03.001 |
Abstract | In the present work, epoxy based quaternary composites were produced by filling lubricant oil-loaded microcapsules, surface grafted nano-SiO2 and discontinuous carbon fibers. Through orthographic tests, the optimal contents of the fillers were determined for achieving significantly improved tribological properties. The lowest specific wear rate and friction coefficient of the composite can be 9.8 × 10−7 mm3/N m and 0.12, respectively, much lower than those of unfilled epoxy, i.e. 1.3 × 10−4 mm3/N m and 0.56. In addition, mechanical properties, especially the maximal loading ability, of the quaternary composite were evidently higher than those of the binary composite with oil-loaded microcapsules. The oil released from the broken microcapsules during sliding wear mainly accounted for the lubrication, while nano-SiO2 and carbon fibers serve as both solid lubricant and reinforcement. As a result, positive synergetic effect appeared and the proposed quaternary composites might be applicable in practice. |
Keywords | sliding wear; polymer-matrix composite; polymers; lubricant additives; binary composites; friction coefficients; loading ability; lubricant oil; microcapsules; nano- SiO; optimal content; surface grafted; synergetic effect; tribological properties; wear rates |
ANZSRC Field of Research 2020 | 401708. Tribology |
401602. Composite and hybrid materials | |
401807. Nanomaterials | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Sun Yat-sen University, China |
Hong Kong Polytechnic University, China | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q098x/optimization-of-tribological-and-mechanical-properties-of-epoxy-through-hybrid-filling
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