Rubber Compounding Materials — Winter 2024

Give the general chemical structure of phenols and write its application.

Compare and contrast the reactivity of alkenes with alkynes in terms of addition reactions.

Discuss in detail about Fatty Acids used in rubber industry.

List out the different processing oil used in rubber industry and differentiate it.

How do inorganic compounds like zinc oxide and magnesium oxide influence the curing process of rubber?

Discuss in detail about the different allotropes of sulfur.

Explain in detail about the manufacturing process of Zinc oxide.

Mentions the important application of Silica.

Differentiate between stabilizers and plasticizers, explaining their roles in polymer formulations.

Explain the chain Breaking reaction of antioxidants.

Describe a real-world example related to rubber where two substances exhibit synergistic behavior to enhance their combined effect.

Name two amine antioxidant and two phenolic antioxidants commonly used in rubber formulations.

Discuss the amine antioxidants in detail.

“Wax is preferable or not” justify the statement

Give the difference between process aids and factices in rubber compounding.

Your company has received an order for a 5 Lakh piece of rubber track pad to be supplied annually to a paver machine company. The weight of a rubber track pad is 2.500 kg. Calculate (i) Specific gravity of compound (ii) Cost of one rubber track pad.

Differentiate between hydrated and pyrogenic Silica.

How do accelerators influence the rate of vulcanization in rubber, and why are they essential in the production of rubber products?

Discuss in detail about the Peptisers used in the rubber industry.

Differentiate between organic blowing agent and inorganic blowing agent.

How would you use a blowing agent to create lightweight foam material, and what factors would you consider ensuring the foam has the desired density and properties?

Analyze the impact of carbon black classification on the final properties of rubber, considering factors like surface area, particle size, and structure.

Explain how plasticizers improve the flexibility and processability of polymers.

If you were tasked with formulating a new rubber product for automotive tires, how would you select and incorporate accelerators into the rubber compound?

Explain the “Thermal black process “with flow diagram in detail.