Articles written in Bulletin of Materials Science

    • Tribological properties of compatabilizer and graphene oxide-filled polypropylene nanocomposites

      S H YETGIN

      More Details Abstract Fulltext PDF

      Effect of maleic-anhydride-grafted-polypropylene (PP-g-MA) and graphene oxide (GO) addition on the tribological properties of polypropylene (PP) nanocomposites were investigated in this study. Graphene oxides with differentlevels (0.05 and 0.15 wt%) were used as reinforcing filler for PP nanocomposites. Maleic-anhydride-grafted-polypropylene (3 wt%) was added as a compatibilizer agent to increase the interaction between the GO and PP matrix. GO-filled PPnanocomposites with and without PP-g-MA were produced by a twin-screw extruder followed by injection moulding.Wear tests were carried out under dry sliding conditions against AISI 1040 steel disc using a pin-on-disc device at 0.4–1.6 m s$^{−1}$ sliding speed and 10–40 N loads. The tribological test results showed that the coefficient of friction and wear rate of PP nanocomposites increased with applied loads and sliding speeds. The coefficient of friction decreased by 8.2, 14.2, 37.3 and 74.7% under 1.2 m s$^{−1}$ sliding speed and 40 N load with the addition of PP-g-MA and GO to the PP nanocomposites. Thewear rate of PP and its nanocomposites was 10$^{−13}$ m$^2$ N$^{−1}$. The minimum wear rate was obtained for 0.15 wt% GO and 3 wt% PP-g-MA-filled PP nanocomposites with a value of 5.7537E$^{−14}$ m$^2$ N$^{−1}$ at 0.4 m s$^{−1}$ sliding speed and 10 N load in this study.

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2021-2022 Indian Academy of Sciences, Bengaluru.