Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> What is the vulcanisation of rubber? Why is it necessary?

Answer 1

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Vulcanisation is the process in which sulphur is mixed in rubber to improve the physical properties of natural rubber. The proportion of sulphur in the mixture is determined by the purpose for which the rubber will be used.

Vulcanised rubber is harder, more elastic, more water-repellent, and more resistant to heat than natural rubber. It is necessary to vulcanise rubber to enable it for use in a wide range of applications.