STEEL CORD IMPROVING DURABLE AGED BONDING ABILITY

摘要

PURPOSE: A steel cord is provided to control the size and shape of sulfide formed in the curing process by regulating the copper content of the steel cord surface, thereby improving bonding ability. CONSTITUTION: A steel cord with improved durable bonding ability is formed of high tension steel wire coated with brass and vulcanized with rubber in a normal vulcanizing condition. Copper sulfide or zinc sulfide particles are formed on the bonding interface of the rubber and steel cord has a sheet-like or spherical structure. The sheet-like particle has a width of 10nm~1000nm, a length of 50nm~2000nm, and a thickness of 10nm~100nm. The spherical particle has a diameter of 10nm~2000nm.