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Image Analysis Determination of the Influence of Surface Structure of Silicone Rubbers on Biofouling
KTH Royal Inst Technol, Sch Chem Sci & Engn, Fibre & Polymer Technol, Stockholm, Sweden.
KTH Royal Inst Technol, Sch Chem Sci & Engn, Fibre & Polymer Technol, Stockholm, Sweden / ABB, Corp Res, Västerås, Sweden.ORCID iD: 0000-0002-5010-5391
KTH Royal Inst Technol, Sch Chem Sci & Engn, Fibre & Polymer Technol, Stockholm, Sweden / ABB, Corp Res, Västerås, Sweden.ORCID iD: 0000-0001-6607-4529
University of Skövde. KTH Royal Inst Technol, Sch Chem Sci & Engn, Fibre & Polymer Technol, Stockholm, Sweden.ORCID iD: 0000-0002-5394-7850
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2015 (English)In: International Journal of Polymer Science, ISSN 1687-9422, E-ISSN 1687-9430, 390292Article in journal (Refereed) Published
Abstract [en]

This study focuses on how the texture of the silicone rubber material affects the distribution of microbial growth on the surface of materials used for high voltage insulation. The analysis of surface wetting properties showed that the textured surfaces provide higher receding contact angles and therefore lower contact angle hysteresis. The textured surfaces decrease the risk for dry band formation and thus preserve the electrical properties of the material due to a more homogeneous distribution of water on the surface, which, however, promotes the formation of more extensive biofilms. The samples were inoculated with fungal suspension and incubated in a microenvironment chamber simulating authentic conditions in the field. The extent and distribution of microbial growth on the textured and plane surface samples representing the different parts of the insulator housing that is shank and shed were determined by visual inspection and image analysis methods. The results showed that the microbial growth was evenly distributed on the surface of the textured samples but restricted to limited areas on the plane samples. More intensive microbial growth was determined on the textured samples representing sheds. It would therefore be preferable to use the textured surface silicone rubber for the shank of the insulator.

Place, publisher, year, edition, pages
Hindawi Publishing Corporation, 2015. 390292
National Category
Polymer Technologies Textile, Rubber and Polymeric Materials
Identifiers
URN: urn:nbn:se:his:diva-13591DOI: 10.1155/2015/390292ISI: 000356264100001Scopus ID: 2-s2.0-84934895948OAI: oai:DiVA.org:his-13591DiVA: diva2:1098122
Available from: 2017-05-23 Created: 2017-05-23 Last updated: 2017-06-05Bibliographically approved

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Nilsson, FritjofHillborg, HenrikKarlsson, SigbrittStrömberg, Emma
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University of Skövde
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International Journal of Polymer Science
Polymer TechnologiesTextile, Rubber and Polymeric Materials

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