MCQ
The process involving heating of rubber with sulphur is called $.......$
- AGalvanisation
- ✓Vulcanization
- CBessemerisation
- DSulphonation
✓
Answer
Correct option: B.
Vulcanization
Vulcanisation of Rubber $-$ Natural rubber becomes soft at high temperature $(>335 K)$ and brittle at low temperature $(<283 K)$ and shows high water absorption capacity.
The process of vulcanisation includes heating of raw rubber with sulphur and an appropriate additive at temperature range between $373 K$ to $415 K.$ Sulphur foms crosslinks at reactive sites of double bonds and thus, rubber gets stiffened.
The process of vulcanisation includes heating of raw rubber with sulphur and an appropriate additive at temperature range between $373 K$ to $415 K.$ Sulphur foms crosslinks at reactive sites of double bonds and thus, rubber gets stiffened.
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