2 results for Jones, MI

  • Doped Diamond-Like Carbon (DLC) coated surfaces to reduce fouling from milk

    Patel, Jaiminkumar; Bansal, B; Jones, MI; Hyland, M (2010-11-09)

    Conference poster
    The University of Auckland Library

    In the dairy industry, fouling of processing surfaces is a common and unresolved problem. Surface modification, for example through the application of a surface coating, can alter the surface properties of a material, and may be a potential way to reduce fouling. Typical dairy plant stainless steel surfaces were modified by the deposition of doped Diamond-Like Carbon (DLC) films with varying concentration of doped elements. These modified surfaces were studied for their fouling behavior with milk at both laboratory and pilot scale. None of the doped DLC modified surfaces investigated in the study presented benefits in fouling reduction as compared to unmodified surface.

    View record details
  • Surface modification to reduce dairy fouling

    Patel, Jaiminkumar; Jones, MI; Hyland, M; Bansal, B (2010-03-22)

    Conference item
    The University of Auckland Library

    Surface modification, for example through the application of a surface coating, potentially provides a solution to mitigate fouling and/or improve cleaning in a number of industrial applications. Such surface modification may alter one or more surface properties including surface roughness, surface free energy, wettability and surface charge. It is expected that altering these surface properties may influence the deposit adhesion and fouling deposition behaviour. The literature suggests that lowering of surface energy promotes reduction in fouling deposits. However conflicting results have been reported for hydrophobic surfaces. This study aims to investigate and clarify this apparent contradiction through the assessment of fouling on modified surfaces for use in the dairy industry. Stainless steel surfaces were modified by the deposition of doped Diamond-like Carbon Films (DLC). The fouling behaviour of the coated surfaces in contact with milk was investigated using a laboratory scale Flow Tube and Disk Fouling Rig. All modified surfaces were observed to result in about 15 % less in fouling deposit weight in comparison with the non-coated surface.

    View record details