| 摘要 |
PURPOSE:To obtain metal-coated fiber fabric useful as electromagnetic wave shielding materials by flame spraying a metal on at least one surface of a polybenzazole fiber fabric having specific physical properties and forming a film. CONSTITUTION:This metal-coated fiber fabric useful as electromagnetic shielding materials is obtained by flame spraying a metal, preferably zinc, copper, nickel, etc., on at least one surface of fabric (or nonwoven fabric) comprising polybenzazole fibers having >=4.0GPa tensile strength and >=140GPa initial tensile elastic modulus and forming a metallic film. A composite material prepared by compounding the metal-coated fiber fabric as a reinforcing material with a matrix, e.g. a rubber or a thermoplastic synthetic resin has excellent electromagnetic shielding properties or antistatic functions. Furthermore, the polybenzazole fibers have a high strength and elastic modulus and further high heat, rub and impact resistances and flame retardancy. |
