| 摘要 |
PURPOSE:To improve the response of the switching temperature of a PTC conductive polymer containing carbon black, and to improve the reproducibility and durability of a PTC switch, and to enhance PTC characteristics by using a crystalline high molecular polymer containing a specific quantity of inorganic short fibers coated with a metal. CONSTITUTION:A polymer selected from polyethylene, polypropylene, nylon, polyacetal and polyester is employed as a crystalline high molecular polymer using a crystalline high molecular polymer including 5-70wt.% inorganic short fibers coated with a metal. 30 wt.% conductive glass fiber (a nickel double layer plated article, l3mmx phi10mum) as the inorganic short fibers coated with the metal and a pellet consisting of 70wt.% high-density polyethylene are blended by a blender, and a molded form 1 in which conductors (phil.2mm) 2 are buried at regular intervals as shown in the figure is molded by employing an extruder and a wire coating mold. |
