What is the chemical formula for rubber?

The chemical formula for natural rubber is (CH2CHC (CH3)CH2)n this is a polymer often call cis-polyisoprene. Structurally each unit in the polymer contains a double bond. This makes the rubber reactive as it is an unsaturated polymeric hydrocarbon.

What is the empirical formula for rubber?

The repeating unit of rubber as shown in the figure contains 5 atoms of carbon and 8 atoms of hydrogen. Hence, its empirical formula becomes (C 5H 8) n. Was this answer helpful?

What are the ingredients of rubber compounds?

All the ingredients of rubber compounds, except for elastomer, are divided into the following groups of curing agents, vulcanization accelerators, accelerator activators, fillers (active, or amplifiers, and inactive), softeners, antioxidants, colorants.

What are the properties of rubber?

The properties of rubber are determined by the properties and the relative amount of the main components (elastomer, sulfur, fillers, antioxidants, etc.), the mode of production of rubber compounds, the degree and method of their vulcanization.

What is rubber vulcanization?

Rubber is a product obtained by mixing elastomers with fillers and other ingredients followed by vulcanization. Vulcanization is used to impart to the rubber mechanical strength, high elasticity and resistance to solvents.

How does sulfur affect the elasticity of rubber?

So, the elasticity of rubber depends on the amount of sulfur, so the rubber is divided into soft (2-8% sulfur), medium hardness (12-20% sulfur) and increased hardness (25-60% sulfur). Addition of carbon black increases the strength of rubber and the addition of plasticizers increase its frost resistance.