Question

short notes on vulcanisation of rubber

Answer 1

Hey !!

VULCANISATION OF RUBBER

Vulcanisation is the heating of natural rubber with sulphur and an appropriate additive to improve its physical properties. On vulcanisation, sulphur forms cross-links at the reactive sites of the double bond and thus rubber gets stiffened.

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Answer 2

${\bf{\mathbb{\blue{Vulcanisation\:of\: Rubber-}}}}$

• The process of heating a mixture of raw rubber with sulphur and a appropriate additive at a temperature range between 373K to 415K is called valcanisation.
• Vulcanisation form sulphur crosslinks at the reactive sites of double bond and the rubber gets stiffened.

Example:

Manufacture of tyre include 5% of sulphur.