Question

What is the percentage of sulphur used in vulcanization of rubber
(a) 05% to 30%
(b) 03% to 25%
(c) 10% to 20%
(d) 05% to 25%

Answer 1

THE ANSWER OF UR QUESTION  IS OPTION (A) .About 5% sulphur is used for making tyre rubber while 30% of sulphur is used for making battery case rubber.

Answer 2

Sulphur is added to vulcanized rubber at a concentration of 5% to 30% to enhance stiffness.

Vulcanization process:

• Vulcanization is a method of treating natural rubber with Sulphur and organic chemicals that speed up the reaction between the rubber and the Sulphur.
• Approximately 5% S is used to manufacture tire rubber, 20% – 25% S is used to make ebonite, and 30% S is used to make battery case rubber.
• Vulcanization occurs when rubber is heated in the presence of Sulphur.
• This causes the rubber and Sulphur chains to crosslink, resulting in a more stable polymer that is stronger and more stable.

Vulcanization uses:

Vulcanized rubber is used in a wide range of products, including shoe soles, hoses, hockey pucks, bowling balls, toys, tyres, bouncing balls, and more. Vulcanized rubber is used in the vast majority of rubber goods.

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