| 摘要 |
PURPOSE:To obtain the title material having large vibration-damping characteristics by laminating a composite material layer formed by impregnating a reinforcing fiber with a resin and bringing the layer into a semi-cured state with a semi-cured or uncured viscoelastic material layer and integrating the assemblage. CONSTITUTION:A composite material layer formed by impregnating an inorganic reinforcing fiber 1 such as a carbon fiber or a glass fiber or an organic reinforcing fiber 1 such as an aramid fiber with a resin 2 such as an epoxy resin and bringing the layer into a semi-cured state is laminated with a semi-cured or uncured viscoelastic material layer 3, and the assemblage is integrated to obtain a prepreg sheet of fiber-reinforced composite material. This material can realize the reduction of vibrations and noises when used in aerospace structures such as artificial satellites and structures such as OA machines, automobiles, commodities for leisure, etc. |
