Tribological Behaviour of Multi-Walled Carbon Nanotubes (MWCNT) Filled Polybutylene Terephthalate (PBT) Nanocomposites

  • Swamini Chopra
  • Saisha Batthula
  • Kavita Deshmukh
  • Dilip Peshwe
Technical Paper


This paper focuses on evaluating the tribological properties of PBT/MWCNT nanocomposites at low CNT concentrations of 0.1, 0.2, 0.3, 0.4 and 0.5 wt%. The composites were prepared by melt-compounding and samples were tested in a pin-on-disc sliding configuration under different load conditions. It was found that the friction coefficient of the composites reduced with increasing CNT content, irrespective of the test load. Meanwhile, the specific wear rate of the composites first decreased and later increased with increasing CNT content. SEM of the worn out surfaces indicated that ploughing and peeling phenomenon of PBT was suppressed at lower CNT addition, but with increasing CNT content the surface seemed to be more damaged. The transfer film formed on the counter-face was also investigated by SEM. It was revealed that the PBT/MWCNT composites formed a thin and more uniform film as compared to the thick and grainy films deposited by virgin polymers. But at higher CNT concentrations, the transfer film once again became lumpy. These findings could be attributed to the presence of CNT agglomerates within PBT matrix at higher CNT concentrations due to non-uniform dispersion.


PBT/MWCNT composites Tribological behavior Specific wear rate Friction coefficient Transfer film Wear debris 


  1. 1.
    Giraldo LF, Brostow W, Devaux E, Lopez BL and Perez LD, J Nanosci Nanotechnol 8 (2008) 1–8.CrossRefGoogle Scholar
  2. 2.
    Zhang XR, Pei XQ, Wang QH, Wang TM and Chen SB, Adv Compos Mater 24 (2015) 147–159.CrossRefGoogle Scholar
  3. 3.
    Theiler G and Gradt T, Wear 269 (2010) 278–284.CrossRefGoogle Scholar
  4. 4.
    Okhlopkova AA, Sleptsova SA, Alexandrov GN, Dedyukin AE, Shim EL, Jeong DY and Cho JH, Bull Korean Chem Soc 34 (2013) 1345–1348.CrossRefGoogle Scholar
  5. 5.
    Mu B, Wang Q, Wang T, Wang H, Jian L and Pei X, Polym Compos 30 (2009) 619–628.CrossRefGoogle Scholar
  6. 6.
    Sudeepan J, Kumar K, Barman TK and Sahoo P, Proc Technol 14 (2014) 196–203.CrossRefGoogle Scholar
  7. 7.
    Jumahat A, Kasolang S and Bahari MT, Jurnal Tribologi 6 (2015) 34–36.Google Scholar
  8. 8.
    Tasdemir M and Ersoy S, Roman J Mater 44 (2014) 257–264.Google Scholar
  9. 9.
    Kandanur SS, Rafiee MA, Yavari F, Schrameyer M, Yu Z-Z, Blanchet TA and Koratkar N, Carbon 50 (2012) 3178–3183.CrossRefGoogle Scholar
  10. 10.
    Venkatesan M, Palanikumar K and Boopathy SR. Trans Indian Inst Met 68 (2015) 91–97.CrossRefGoogle Scholar
  11. 11.
    Chang D, Wang X, Zhu J, Qiu D, Cheng X and Guan Q, Front Mater Sci China 3 (2009) 56–60.CrossRefGoogle Scholar
  12. 12.
    Botan M, Georgescu C and Deleanu L, Appl Mech Mater 658 (2014) 283–288.CrossRefGoogle Scholar
  13. 13.
    Akinci A, Ind Lubr Tribol 67 (2015) 22–29.CrossRefGoogle Scholar
  14. 14.
    Cho M, Mater Trans 49 (2008) 2801–2807.CrossRefGoogle Scholar
  15. 15.
    Chen WX, Li F, Han G, Xia JB, Wang LY, Tu JP and Xu ZD, Tribol Lett 15 (2003) 275–278.CrossRefGoogle Scholar
  16. 16.
    Dong B, Yang Z, Huang Y and Li H-L, Tribol Lett 20 (2005) 251–254.CrossRefGoogle Scholar
  17. 17.
    Yang Z, Dong B, Huang Y, Liu L, Yan F-Y and Li H-L, Mater Chem Phys 94 (2005) 109–113.CrossRefGoogle Scholar
  18. 18.
    Thakur SK, Sharma A and Batra NK, Int J Theor Appl Res Mech Eng 1 (2012) 32–36.Google Scholar
  19. 19.
    Meng H, Sui GX, Xie GY and Yang R, Compos Sci Technol 69 (2009) 606–611.CrossRefGoogle Scholar
  20. 20.
    Georgescu C and Deleanu L, Proceedings of 15th International Conference on Experimental Mechanics, Portugal, July 2012, Paper ref.: 3014.Google Scholar
  21. 21.
    Hollander AE and Lancaster JK, Wear 25 (1973) 155–170.CrossRefGoogle Scholar
  22. 22.
    Briscoe BJ, Evans PD, Lancaster JK, Wear 124 (1988) 177–194.CrossRefGoogle Scholar
  23. 23.
    Chang L, Zhang Z, Ye L and Friedrich K, Tribol Int 40 (2007) 1170–1178.CrossRefGoogle Scholar
  24. 24.
    Zhang G, Zhang C, Nardin P, Tribol Int 41 (2008) 79–86.CrossRefGoogle Scholar
  25. 25.
    Song HJ, Zhang ZZ, Men XH, Compos Sci Technol 68 (2008) 1042–1049.CrossRefGoogle Scholar
  26. 26.
    Srinath G and Gnanamoorthy R, J Mater Sci 40 (2005) 2897–2901.CrossRefGoogle Scholar

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© The Indian Institute of Metals - IIM 2017

Authors and Affiliations

  1. 1.Department of Metallurgical and Materials EngineeringVisvesvaraya National Institute of TechnologyNagpurIndia

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