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Fiber reinforced epoxy casting resin as an insulating material for high voltage application

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It is well known that glass fiber addition into resin will increase the resin viscosity. However, such a viscosity increase did not occur at all when fine particles several micrometers in size were used in combination with the fibers. On the basis of this phenomenon, the authors have developed and applied successfully a new type of casting resin that is reinforced by glass fiber. In this paper, the reason that the resin viscosity does not increase when adding fine particles in combination with the fibers into the resin is discussed.

Keywords: Casting resin; Crack resistance; Epoxy; Glass fiber; Insulation; Rheology

Document Type: Research Article


Affiliations: 1: Materials and Devices Research Laboratories, Research and Development Center, Toshiba Corporation, I Toshiba-cho, Komukai, Saiwai-ku, Kawasaki-shi 210, Japan 2: Switchgear Department, Fuchu Works, Toshiba Corporation, I Toshiba-cho, Fuchu-shi, Tokyo 183, Japan 3: Heavy Apparatus Engineering Laboratory, Fuchu Works, Toshiba Corporation, I Toshiba-cho, Fuchu-shi, Tokyo 183, Japan

Publication date: 1994-01-01

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