Tribological properties of carbon nanotube as co-reinforcing additive in carbon black/acrylonitrile butadiene rubber composites for hydraulic seal applications

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Author list: Jansinak S., Markpin T., Wimolmala E., Mahathanabodee S., Sombatsompop N.

Publisher: SAGE Publications

Publication year: 2018

Journal: Journal of Reinforced Plastics and Composites (0731-6844)

Volume number: 37

Issue number: 20

Start page: 1255

End page: 1266

Number of pages: 12

ISSN: 0731-6844

eISSN: 1530-7964

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85047438096&doi=10.1177%2f0731684418777856&partnerID=40&md5=45bf59e74b809e52f555a824b696bbfd

Languages: English-Great Britain (EN-GB)

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Abstract

This work investigated the cure characteristic, physical mechanical properties, and tribology behavior of carbon black filled acrylonitrile butadiene rubber composites using multi-walled carbon nanotubes as co-reinforcing additive in various contents from 0, 3, 6, 9, and 15 parts per hundred rubbers. The physical and tribological behavior was also observed in large-scale piston driven hydraulic apparatus which was specially designed for seal applications. The results suggested that the modulus and hardness were found to increase after adding multi-walled carbon nanotube whereas the tensile and tear strength were not significantly affected. Adding multi-walled carbon nanotube was found to increase the bound rubber and crosslink density. For ball-on-disc tribo-testing, it was found that the coefficient of friction of the rubber composites decreased with multi-walled carbon nanotube content and the applied loads whereas the specific wear rate was more influenced by the applied loads used. Finally, under the large-scale piston driven hydraulic test apparatus in comparison with commercial grade rubber seals, it was found that the weight loss for the acrylonitrile butadiene rubber composites with multi-walled carbon nanotube was much lower than that without multi-walled carbon nanotube. The carbon black/acrylonitrile butadiene rubber composites with 9–12 parts per hundred rubbers multi-walled carbon nanotube were recommended as the most suitable for hydraulic seal applications. © The Author(s) 2018.

Keywords

Multi-walled carbon nanotubes, nitrile rubber