| 摘要 |
PURPOSE:To reduce a thermal expansion coefficient, and to manufacture a fluoroplastic laminated board having excellent dimensional stability and a high dielectric constant and low dielectric loss tangent by arranging metallic foils onto one surface or both surfaces of an interior-finish material composed of fluoroplastics containing inorganic fillers and glass cloth. CONSTITUTION:Glass cloth is impregnated with a substance acquired by adding and uniformly dispersing a desired quantity of inorganic fillers to a fluoroplastic dispersion, and changed into prepreg through baking by heating. The prepreg is cut in a specified shape, laminated onto a metallic foil and pressed and heated. A PTFE resin (a tetrafluoroethylene resin), etc. can be used as fluoroplastics. A method in which glass cloth is impregnated with the fluoroplastic dispersion, to which the inorganic fillers are added, and baked by heating is preferable in order to stably attach fluoroplastics, to which the inorganic fillers are added, onto glass cloth uniformly. |
