What is a DCBS accelerator?

Accelerator DCBS is a delayed action sulfenamide accelerator for use in natural and synthetic rubbers. It is recommended for applications where exceptionally long flow times are required. DCBS is particularly suitable for rubber goods subjected to high dynamic stresses. It is a primary accelerator

Which sulfenamide accelerator is best for rubber goods?

DCBS is particularly suitable for rubber goods subjected to high dynamic stresses. It is a primary accelerator which can be used alone or in combination with many secondary accelerators. DCBS offers the best scorch resistance of all commonly used sulfenamide accelerators.

Is DCBS a sulfonamide accelerator?

Soluble in acetone organic liquids, including fats and oils, insoluble in water. DCBS is a sulfonamide accelerator with excellent anti-scorching property and delayed onset of cure. It is compatible with natural and synthetic rubbers. Suitable for radial ply tyre, rubber belts and shock absorber, etc. Particularly it produces good adhesion to metal.

What is a catalyst accelerator?

An accelerator is a material that, when mixed with a catalyst and resin, speeds up the chemical reaction between the catalyst and the resin (usually in the polymerizing of resin or vulcanization of rubbers). Accelerators are also known as promoters when used with polyester resins and vulcanizing agents when used with rubbers.

What vulcanizing agent is used in rubber?

Elemental sulfur is the predominant vulcanizing agent for general-purpose rubbers. It is used in combination with one or more accelerators and an activator system comprising zinc oxide and a fatty acid (normally stearic acid). The most popular accelerators are delayed-action sulfenamides, thiazoles, thiuram sulfides, dithocarbamates and guanidines.

Why are accelerators used in vulcanizing elastomers?

Accelerators are added in small amounts to speed up the curing of adhesives by reducing the cure time and temperature of elastomers, particularly latex systems. The selection of an accelerator will depend on the specific vulcanizing system and curing properties.