What are rubber chemicals?

Broadly the Rubber Chemicals can be classified into the following categories These are essential chemicals which ensures that the normal or desired life cycle of a rubber product is achieved.

What is the role of sulphur in rubber?

Main role of Sulphur is to make cross-links between the rubber chains, and by doing so, introduces hardness in rubber. Natural rubber is poly isoprene. The molecules are long chains arranged randomly and hence natural rubber is not suitable for most of applications.

What is a rubber curing agent?

Most of the rubber products can also contain reinforcing materials – fibers, filaments, wires, metal. The most common curing agent is natural premium powdered sulfur in the form of yellow crystals of the orthorhombic form obtained during the processing of sulfur ores by grinding and sifting.

What are the ingredients in rubber compounds?

Ingredients in rubber compounds are a large group of components, including curing agents, accelerators and vulcanization activators, antioxidants, plasticizers, fillers and special additives (blowing agents, dyes, etc.). The list of ingredients in phr (parts per hundred rubber) called rubber compound recipe.

What color is rubber?

Coloring rubber in other colors is carried by the white tone. Iron oxide Fe2O3, often in conjunction with lithopone and sulfurous antimony, selenium, cadmium compounds, cinnabar mercury and sulfur are using as red pigments. Chromium oxide gives blue-green color, and blue – ultramarine.

How does the color of rubber affect the aging process?

The color of rubber affects on its resistance to aging under the influence of light. White, yellow and green colors of rubber are protective, and blue color accelerates the aging process, and therefore rarely used. This is due to the rubber’s absorption or reflection of a certain spectrum.