Influence of macro-topography on mechanical performance of 0.5 wt% nanoclay/multi-layer graphene-epoxy nanocomposites

Article English OPEN
Atif, Rasheed ; Inam, Fawad (2016)

Influence of topography on the variation in mechanical performance of 0.5 wt% multi-layer graphene (MLG)/nanoclay-epoxy nanocomposites has been studied. Three different systems were produced: 0.5 wt% MLG-EP, 0.5 wt% nanoclay-EP, and 0.25 wt% MLG-0.25 wt% nanoclay-EP. The influence of synergistic effect on mechanical performance in case of hybrid nanocomposites is also studied. Various topography parameters studied include maximum roughness height (Rz or Rmax),root mean square value (Rq),roughness average (Ra), and surface waviness (Wa).The Rz of as-cast 0.5 wt% MLG, nanoclay, and 0.25 wt% MLG-0.25 wt% nanoclay-EP nanocomposites were 41.43 μm, 43.54 μm, and 40.28 μm, respectively. The 1200P abrasive paper and the velvet cloth decreased the Rzvalue of samples compared with as-cast samples. In contrary, the 60P and 320P abrasive papers increased the Rz values. Due to the removal of material from the samples by erosion, the dimensions of samples decreased. The weight loss due to erosion was commensurate with the coarseness of abrasive papers. It was observed that MLG is more influential in enhancing the mechanical performance of epoxy nanocomposites than nanoclay. In addition, it was observed that mechanical performance of hybrid nanocomposites did not show a marked difference suggesting that synergistic effects are not strong enough in MLG and nanoclay.
  • References (28)
    28 references, page 1 of 3

    1. Schuler M, Kunzler TP, De Wild M, et al. (2009) Fabrication of TiO2-coated epoxy replicas with identical dual-type surface topographies used in cell culture assays. J Biomed Mater Res A 88: 12-22.

    2. Lam CK, Lau KT (2007) Tribological behavior of nanoclay/epoxy composites. Mater Lett 61: 3863-3866.

    3. Yu S, Hu H, Ma J, et al. (2008) Tribological properties of epoxy/rubber nanocomposites. Tribol Int 41: 1205-1211.

    4. Xia S, Liu Y, Pei F, et al. (2015) Identical steady tribological performance of graphene-oxide-strengthened polyurethane/epoxy interpenetrating polymer networks derived from graphene nanosheet. Polymer 64: 62-68.

    5. Atif R, Inam F (2016) Modeling and simulation of graphene based polymer nanocomposites : Advances in the last decade. Graphene 96-142.

    6. Siegel R, Hu E, Roco M (1999) Nanostructure science and technology. A worldwide study.

    7. Pan G, Guo Q, Ding J, et al. (2010) Tribological behaviors of graphite/epoxy two-phase composite coatings. Tribol Int 43: 1318-1325.

    8. Brostow W, Dutta M, Rusek P (2010) Modified epoxy coatings on mild steel: Tribology and surface energy. Eur Polym J 46: 2181-2189.

    9. Zhang WH, Hsieh JH (2000) Tribological behavior of TiN and CrN coatings sliding against an epoxy molding compound. Surf Coatings Technol 130: 240-247.

    10. Chang L, Zhang Z, Ye L, et al. (2007) Tribological properties of epoxy nanocomposites: III. Characteristics of transfer films. Wear 262: 699-706.

  • Metrics
    views in OpenAIRE
    views in local repository
    downloads in local repository

    The information is available from the following content providers:

    From Number Of Views Number Of Downloads
    Northumbria Research Link - IRUS-UK 0 16
Share - Bookmark