In order to avoid electrostatic discharge on satellites caused by the accumulation of electric charges on their external surface, thermal control coatings should have a surface resistivity between 10 6  Ω/ square and 10 10  Ω/ square or a bulk conductivity higher than 10 −8 S cm −1 . The polysiloxane resin of a cold thermal control coating, the flexible solar reflector (FSR), was filled with different conducting nanoparticles: indium tin oxide, zinc oxide and multi‐walled carbon nanotubes (CNTs). Adding conducting nanoparticles increased the electrical conductivity of the FSR but also degraded its thermooptical properties. A simulation test of electron bombardment in geostationary orbit was performed on some samples. The existence of electron bombardment induced conductivity allowed oxide‐filled composites to evacuate electric charges more effectively than the CNT‐filled composites. None of the composites exhibited the required properties for a new version of FSR for geostationary orbit. Although charge dissipation was achieved with two samples, their thermooptical properties were not acceptable.


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    Titel :

    Development of a Flexible Solar Reflector for Geostationary Spacecraft


    Beteiligte:
    Beigbeder, J. (Autor:in) / Demont, P. (Autor:in) / Remaury, S. (Autor:in) / Nabarra, P. (Autor:in) / Lacabanne, C. (Autor:in) / Kleiman, Jacob I. (Herausgeber:in)

    Kongress:

    PROTECTION OF MATERIALS AND STRUCTURES FROM SPACE ENVIRONMENT: Proceedings of the 9th International Conference: Protection of Materials and Structures From Space Environment ; 2008 ; Toronto (Canada)


    Erschienen in:

    AIP Conference Proceedings ; 1087 , 1 ; 477-484


    Erscheinungsdatum :

    05.01.2009


    Format / Umfang :

    8 pages





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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