All-thermoplastic bumpers have been used in Ford passenger cars since mid-1980's. The all-plastic bumper is an injection-molded facebar bonded to an injection-molded backplate forming a box beam. It provides benefits such as light weight, cost effectiveness, and corrosion resistance compared with a metallic counterpart. The bumpers are made of a blend of polycarbonate (PC) and polybutylene terephthalate (PBT). The blend is a biphasic system with partial compatibility of the polymers; with additional impact modifiers it has a very high impact strength even at low temperature. Properties of thermoplastic bumpers made of polycarbonate (PC) and polybutylene terephthalate (PBT) blend were evaluated after several years of service in the field. In this study we measured th Izod impact strength, PC molecular weight, and melt flow rate of bumpers collected from various geographical areas in the U.S. Generally, the system had good impact resistance after more than five years of service in the field, retaining most of the original impact strength. There were small changes in PC average molecular-weights and melt flow rates. The results showed that changes depended on both exposure time and the weather conditions of the environment.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    The long-term durability of thermoplastic bumpers


    Weitere Titelangaben:

    Die Langzeit-Haltbarkeit thermoplastischer Stoßdämpfer


    Beteiligte:
    Tao, W.H. (Autor:in) / Golovoy, A. (Autor:in) / Zinbo, M. (Autor:in) / Bauer, D.R. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1993


    Format / Umfang :

    4 Seiten, 1 Bild, 2 Tabellen, 10 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    The Long-Term Durability of Thermoplastic Bumpers

    Tao,W.H. / Golovoy,A. / Zinbo,M. et al. | Kraftfahrwesen | 1993


    The Long-Term Durability of Thermoplastic Bumpers

    Golovoy, A. / Bauer, D. R. / Zinbo, M. et al. | SAE Technical Papers | 1993


    THERMOPLASTIC JOUNCE BUMPERS

    SZEKELY PETER LASZLO / VAN DER ZYPPE DAMIEN | Europäisches Patentamt | 2016

    Freier Zugriff

    Thermoplastic jounce bumpers

    SZEKELY PETER LASZLO / VAN DER ZYPPE DAMIEN | Europäisches Patentamt | 2020

    Freier Zugriff

    THERMOPLASTIC JOUNCE BUMPERS

    SZEKELY PETER LASZLO / DAMIEN VAN DER ZYPPE | Europäisches Patentamt | 2016

    Freier Zugriff