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https://doi.org/10.1016/j.triboint.2013.02.033
Title: | Wear durability study on self-lubricating SU-8 composites with perfluoropolyther, multiply-alkylated cyclopentane and base oil as the fillers | Authors: | Saravanan, P. Satyanarayana, N. Sinha, S.K. |
Keywords: | Boundary lubrication MEMS tribology SU-8 |
Issue Date: | 2013 | Citation: | Saravanan, P., Satyanarayana, N., Sinha, S.K. (2013). Wear durability study on self-lubricating SU-8 composites with perfluoropolyther, multiply-alkylated cyclopentane and base oil as the fillers. Tribology International 64 : 103-115. ScholarBank@NUS Repository. https://doi.org/10.1016/j.triboint.2013.02.033 | Abstract: | Though SU-8 has become a useful material for micro-fabrication of MEMS/NEMS components using the micro-fabrication route, its poor tribological properties limit its wider applications. From our previous study [1], it was observed that adding PFPE lubricant to SU-8 possibly promoted chemical reaction between the molecules and helped in the boundary lubrication enhancing the wear durability of SU-8 by more than four orders of magnitude. For further investigation, another two different lubricants, a base oil and a multiply-alkylated cyclopentane (MAC) oil, were also added to SU-8. Both lubricants are hydrocarbons, chemically inert and have no polar reactive terminal groups unlike PFPE which has -OH polar terminal groups. SU-8+PFPE composite exhibited higher wear life than all SU-8 composites at all wt% of the lubricant content. Proper dispersion and possible chemical bonding of PFPE molecules with SU-8 are responsible for the superior tribological properties of SU-8+PFPE composite when compared with other SU-8 composites. © 2013 Elsevier Ltd. | Source Title: | Tribology International | URI: | http://scholarbank.nus.edu.sg/handle/10635/61694 | ISSN: | 0301679X | DOI: | 10.1016/j.triboint.2013.02.033 |
Appears in Collections: | Staff Publications |
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