| 摘要 |
PURPOSE:To provide plastic molding material for the housing of a digital electronic device or a radio, etc. excellent in electromagnetic wave cut-off properties and moldability by making conductive filler and thermoplastic plastics in the form of a pellet with a specific diameter. CONSTITUTION:Conductive filler (composed, for example, of metal such as stainless steel, aluminium, brass or magnesium, etc. and carbon and takes the form of a flake with a thickness of 0.1mm. max. and a surface area of 4mm.<2> max.) and thermoplastic plastics are mixed at 90:10-75:25 (by volumetric ratio) and extruded to obtain the target plastic molding material in the form of a pellet with a diameter 3.5-7mm.. |
