Can you describe in detail the process of vulcanization of rubber?

Question

Accepted Answer

Vulcanisation of rubber is a chemical process that involves adding sulfur to raw rubber to improve its strength, elasticity, and durability.

Raw rubber is heated with sulfur in the presence of an accelerator, typically zinc oxide, to initiate the vulcanisation process.
The mixture is then heated to a specific temperature for a certain amount of time to allow the sulfur to cross-link with the rubber polymer chains.
This cross-linking creates a three-dimensional network within the rubber, improving its mechanical properties.
The vulcanised rubber is then cooled and shaped into the desired form, such as tires, hoses, or seals.
Examples of vulcanised rubber products include car tires, shoe soles, and industrial belts.

Accepted Answer

Vulcanization is a chemical process in which the rubber is heated with sulphur, accelerator and activator at 140–160°C. the formation of long rubber molecules so as to achieve improved elasticity, tensile strength, viscosity, hardness and weather resistance.

Asked in MRF Tyres and 2 others

Can you describe in detail the process of vulcanization of rubber?

Interview Questions from Popular Companies