The accurate evaluation of the lifetime and mechanical properties of rubber-like materials is of particular interest for designers in order to ensure the reliability of such materials and the safety of structures. This is especially true for sensible applications, like offshore pipelines or dry dock seals, needing frequent maintenance operations. The frequency of these operations, and thus their cost, could be reduced by a better understanding of rubber-like materials ageing. To reduce the time cost of this evaluation, accelerated ageing tests using temperature, acid or humid environments as acceleration factors are usually carried out. However, these tests convey unavoidably some artificial phenomena like diffusion limited oxygen, which makes difficult the use of the results In this study, we focused on a polychloroprene rubber, aged under several accelerated conditions (renewed natural seawater and air ageing both for temperature ranging from 20 deg C to 80 deg C) Physical measurements (IR and Raman analysis) are carried out to understand the mechanisms involved in the material degradation Several mechanical tests are also achieved (uniaxial tension and instrumented micro-hardness tests) in order to observe the consequences of the degradation of the material on its mechanical behaviour.


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    Titel :

    Accelerated ageing of polychloroprene for marine applications


    Beteiligte:
    Saux, V. le (Autor:in) / Marco, Y. (Autor:in) / Calloch, S. (Autor:in) / Gac, P.Y. le (Autor:in) / Ait Hocine, N. (Autor:in)


    Erscheinungsdatum :

    2009


    Format / Umfang :

    6 Seiten, 10 Bilder, 10 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch