Explain the purpose if vulcanization of rubber .

Explanation

1) Natural rubeer becomes soft at high temperatures and brittle at low temperatures . It shows high water absorption capacity.
2) Natural rubber is soluble in non -polar solvents and is non -resistant to oxidising agents.
3) To improve these physical properties rubber can be vucanised .
4) The process of heating the raw rubber with sulphur (or) with sulphur compounds to improve it's physical properties is called vucanisation of rubber ,
5) The vulcanized rubber has improved properties like elasticity, minimum water absorbing tendency, high resistance to chemical to chemical oxidation an well as organic solvents.