Additives and Compounding of Plastics — Summer 2021

Give Short note on Natural Fillers.

Write briefly on Engineering Plastics.

Defined the term Additives. Give complete classification of Additives.

Describe difference between LDPE, HDPE and LLDPE.

What are the Lubricants? Give its complete classification.

How Plasticizer works? Explain plasticization of PVC.

Write short notes on Anti-Static agents & Blowing agents.

Give types of Colorant with examples.

Write down about Processing Aids with examples.

What are Stabilizers? Classify and explain its function.

What are Impact Modifiers? Give its examples.

Define Compounding and explain the objectives of Compounding.

What are flame-retardants? List the mechanism of functioning of flame- retardants.

Differentiate between Mixing and Compounding.

What is a Nucleating Agent? Give its examples.

Write down the compounding process of Plastics by Planetary Mixer.

Explain types of Twin Screw Extruders.

Give details on the various steps of compounding of Plastics.

Explain the working of a High Speed Mixer used for compounding with the help of a neat diagram.

Which plastics were use in Packaging, Building, and Transport?

Describe Two-roll mill for plastic compounding with diagram.

Explain the Banbury Mixture with a neat diagram as compounding equipment.

Enlist uses of Plastics in Electrical, Electronics and Telecommunications,

Describe working of Ribbon Blender used for the compounding of Plastics.

Write a short note on theory of mixing.