Preliminary Development of an Epoxy Resin System for Flywheel Applications

    Volume 2, Issue 3 (July 1980)

    ISSN: 0884-6804

    CODEN: CTROAD

    Page Count: 3


    Newey, HA
    Lawrence Livermore National Laboratory, Livermore, CA

    Chiu, IL
    Lawrence Livermore National Laboratory, Livermore, CA

    Kolb, JR
    Lawrence Livermore National Laboratory, Livermore, CA

    Abstract

    We at Lawrence Livermore National Laboratory (LLNL) have a very active Flywheel program, one component of which is the development of new resin systems to serve as matrix materials for fiber-reinforced composites. A resin matrix for filament-wound flywheels must have a combination of characteristics that is normally difficult to achieve and, at times, may be almost mutually exclusive. The needs most prominent are low viscosity for fiber penetration, a long pot life for handling ease, low toxicity, and low cost. Very few resin systems satisfactorily meet each of these necessary criteria. An additional constraint lies within the service temperatures where the flywheel must operate. Three distinct temperature regimes have been defined. The first is where the flywheel reaches a maximum temperature of 65°C. In the second region, a maximum temperature of 100°C has been defined. In the third region, the temperature may reach 120°C or higher. For the low temperature use, a room temperature curable resin system with a glass transition temperature (Tg) of approximately 65°C seems satisfactory. For intermediate temperature uses, a rubberized epoxy resin cured with an aromatic amine (Tg = 104°C) looks promising.


    Paper ID: CTR10706J

    DOI: 10.1520/CTR10706J

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    Author
    Title Preliminary Development of an Epoxy Resin System for Flywheel Applications
    Symposium , 0000-00-00
    Committee D30