Rubber compound

A rubber compound is a multicomponent elastomeric homogeneous system that includes rubbers ( natural and / or synthetic), vulcanizing agents (most often sulfur or organic peroxides), factories , oils and other plasticizers, carbon blacks , chalk , kaolin , white soot, other fillers and other components (ingredients). The rubber mixture is intended for the manufacture of rubber products (vulcanizates, vulcanized products) by the vulcanization method (shaped or non-shaped) - most often high-temperature.

The manufacturing process of rubber compounds is a mechanical, most often sequential mixing of rubbers and ingredients on special technological mixing equipment - on mixing rollers or in a rubber mixer of the closed type (Banbury or Intermix) or open. The trivial name of the rubber mixing process is rubber dyeing. In mass production for the manufacture of rubber compounds used technological lines, including:

• rubber mixer - for the displacement of rubbers and main components;
• mixing rollers or an aggregate of several - 2 or 3 rollers for finalizing the rubber mixture by introducing a vulcanizing agent (sulfur, less often thiuram D) into the mixture and paging (giving a convenient commodity form);
• festoon type cooling unit or cold water bath to reduce the temperature of the rubber compound and prevent scorching

In the recent past, a two-stage method was also used in the manufacture of rubber compounds, in which the rubber mixture went through a curing step before the introduction of the vulcanizing agent, either in the form of sheets or granules. In the small-scale production of rubber compounds, production is carried out only on mixing rollers.

• Kornev A.E., Bukanov A.M., Sheverdyaev O.N. Technology of elastomeric materials. Moscow, MGOU, 2001 .-- 472 p.
• Karpov V.N. Equipment of rubber industry enterprises. Moscow, Chemistry, 1979.- 352 p.