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http://dx.doi.org/10.9725/kstle.2014.30.5.278

Evaluation of MWCNT Exposure and the Wear Characteristics of MWCNT-containing PC/ABS Composites  

Lee, Hyun-Woo (Dept. of Nano Mechanics, Nano-convergence Mechanical Systems Research Division, Korea Institute of Machinery & Materials (KIMM))
Kim, Kyung-Shik (Dept. of Nano Mechanics, Nano-convergence Mechanical Systems Research Division, Korea Institute of Machinery & Materials (KIMM))
Lee, Jae-Hyeok (Dept. of Materials Science and Engineering, Northwestern University)
Kim, Hyo-Sop (Dept. of Molecular Science and Technology, Ajou University)
Kim, Jae-Ho (Dept. of Molecular Science and Technology, Ajou University)
Oh, Dong-Hoon (Nano Materials Research Team, R&BD Center Kumho Petrochemical Co., Ltd.)
Ryu, Sang-Hyo (Nano Materials Research Team, R&BD Center Kumho Petrochemical Co., Ltd.)
Jang, Young-Chan (Nano Materials Research Team, R&BD Center Kumho Petrochemical Co., Ltd.)
Kim, Jae-Hyun (Dept. of Nano Mechanics, Nano-convergence Mechanical Systems Research Division, Korea Institute of Machinery & Materials (KIMM))
Lee, Hak-Joo (Dept. of Nano Mechanics, Nano-convergence Mechanical Systems Research Division, Korea Institute of Machinery & Materials (KIMM))
Kim, Kwang-Seop (Dept. of Nano Mechanics, Nano-convergence Mechanical Systems Research Division, Korea Institute of Machinery & Materials (KIMM))
Publication Information
Tribology and Lubricants / v.30, no.5, 2014 , pp. 278-283 More about this Journal
Abstract
Carbon nanotubes (CNTs) are used in various composite materials to enhance electrical, thermal and mechanical properties of composite materials. In this study, we investigate the wear characteristics of polycarbonate/acrylonitrile-butadiene-styrene (PC/ABS) blends containing multi-walled carbon nanotubes (MWCNTs). PC/ABS blends are commonly used in many industrial applications such as cellular phones and display cases and MWCNTs have been added to the PC/ABS blends to improve their electromagnetic interference shielding (EMS). We performed wear tests on PC/ABS blends containing MWCNTs under reciprocating linear sliding conditions with chrome steel balls as a counterpart material. The normal loads were 10, 30, 50, 70, 100 N, the sliding speed was 10 mm/s, the stroke length was 15 mm, and the tests lasted 900 s. The MWCNTs included in the PC/ABS blends lower the wear volume and friction coefficient of the composites. We analyzed the wear debris collected from the composites during the tests in terms of the MWCNT concentration using inductively coupled plasma optical emission spectroscopy. The results show that the quantity of MWCNTs in the debris is proportional to the concentration of MWCNTs in the composite, indicating that the exposure of the MWCNTs to environments by wear could be increased with their concentration in the composite.
Keywords
multi-walled carbon nanotube (MWCNT); polycarbonate acrylonitrile butadiene styrene (PC/ABS); friction coefficient; wear debris; inductively coupled plasma optical emission spectroscopy (ICP-OES);
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Times Cited By KSCI : 2  (Citation Analysis)
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