During the vulcanization of rubber, sulphur is added to

During the vulcanization of rubber, sulfur is added to bind rubber molecules together. Vulcanization is a process of treating rubber with sulfur and high temperature to improve its mechanical properties such as strength, elasticity, and durability. When sulfur is added to rubber and heated, it forms cross-links between the polymer chains of the rubber molecules. This process is called cross-linking, and it causes the rubber to become stronger, more elastic, and less sticky. Therefore, the main purpose of adding sulfur to rubber during vulcanization is to bind the rubber molecules together and create cross-links between them, which improves the properties of the rubber.