Here's how it works:
* Natural rubber is a polymer made up of long chains of isoprene molecules. These chains are tangled and weak, making the rubber soft and sticky.
* Sulfur is added to the rubber and heated. The sulfur atoms react with the rubber molecules, creating cross-links between the chains.
* These cross-links act like bridges, holding the chains together and preventing them from sliding past each other. This makes the rubber stronger, more durable, and less prone to deformation.
* The amount of sulfur added determines the properties of the rubber. More sulfur creates a harder, stronger rubber, while less sulfur results in a softer, more flexible rubber.
Vulcanization is a key process that transformed rubber from a useless substance to a versatile material used in countless applications.