Morphological structures and tribological performance of unsaturated polyester based untreated/silane-treated halloysite nanotubes

Albdiry, M. T. and Yousif, B. F. (2013) Morphological structures and tribological performance of unsaturated polyester based untreated/silane-treated halloysite nanotubes. Materials and Design, 48. pp. 68-76. ISSN 0264-1275

Abstract

In this study, pristine halloysite nanotubes (HNT) and silane-treated halloysite (s-HNT) particles were incorporated into highly crosslink unsaturated polyester (UPE) to explore the morphological structure and tribological performance of UPE-HNT nanocomposite. Wear resistance of cured UPE/HNT and UPE/s-HNT nanocomposites were systematically evaluated using block-on-ring (BOR) configuration against stainless steel counterpart under a certain dry sliding conditions. TEM micrographs revealed a uniform morphological dispersion of halloysite particles in the UPE matrix. Both pristine and silane-treated HNT particles induced a modest decrease in a specific wear rate and coefficient of friction of nanocomposites. There was a pronounced reduction in the specific wear rate of the polyester composites at more than 5 wt.% of halloysite. However, the addition of silane exhibited insignificant results especially at higher percentages of HNT. The investigation of worn surface morphology and wear mechanism of materials by using SEM is also discussed.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published online 23 Aug 2012. Permanent restricted access to published version in accordance with the copyright policy of the publisher.Corresponding author. Tel.: +61 746312633.
Depositing User: epEditor USQ
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - No Department
Date Deposited: 27 Sep 2012 01:58
Last Modified: 15 Feb 2014 07:28
Uncontrolled Keywords: halloysite nanotubes; silane treatment; unsaturated polyester; wear resistance
Fields of Research (FOR2008): 09 Engineering > 0913 Mechanical Engineering > 091309 Tribology
09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
10 Technology > 1007 Nanotechnology > 100708 Nanomaterials
Socio-Economic Objective (SEO2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: doi: 10.1016/j.matdes.2012.08.035
URI: http://eprints.usq.edu.au/id/eprint/22008

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