METAL CORD, RUBBER-CORD COMPLEX, AND PNEUMATIC TIRE USING THE SAME

摘要

A rubber/cord composite object (9) which comprises: metallic cords (10) comprising plated wires (17E) obtained by forming a brass deposit layer (16) on the surface of uncoated wires (15) and drawing the plated wires; and a rubber (12) bonded to the metallic cords (10) through vulcanization. It has, between the rubber (12) and the brass deposit layer (16), an adhesive reaction layer (25) formed by the crosslinking reaction of sulfur with the copper. When the composite object is held in an atmosphere having a temperature of 50-100°C and a humidity of 60-100% for 1 hour to 20 days to bring the adhesive reaction layer (25) into the state of being deteriorated by moisture and heat, then the adhesive reaction layer (25) has an average thickness of 50-1,000 nm and the interface (S) of the adhesive reaction layer (25) has a fractal dimension in the range of 1.001-1.300.