METHOD FOR PLATING MOLDED BODY OF POLYETHYLENE TEREPHTHALATE WITH METAL

摘要

PURPOSE:To simply form a metallic film having superior adhesion by plating with high reproducibility by etching a molded body of polyethylene terephthalate and immersing it in palladium hydrosol contg. a cationic surfactant. CONSTITUTION:A molded body of polyethylene terephthalate is etched by immersion in an aqueous soln. of an alkali metallic hydride for >=about 10min. the molded body is then immersed in palladium hydrosol contg. a cationic surfactant to stick palladium colloid to the surface of the molded body. About 0.002-0.1% stearyltrimethylammonium chloride is preferably used as the surfactant. The palladium hydrosol contains bout 0.1-2mg atom/l Pd and the immersion is preferably carried out at room temp.-about 100 deg.C for >=about 1min. The molded body is pulled up, washed and chemically plated by a conventional method.