Polymer Alloys and Blends — Summer 2018

Define a) Polymer alloy b) Polymer blend c) Engineering plastics

What are the reasons for blending.

List the steps in designing a polymer blend.

What are Thermoplastic Elastomer? List its types.

Explain briefly about PVC/ABS blends.

List the methods of blending. Explain mechanical mixing in detail.

Write a short note on polymer blends used in cable industries.

What is a compatibilizer? Explain the compatibilization mechanism using specific interactive group.

List the advantages and disadvantages of Thermoplastic Elastomer.

Write a short note on blends of PC.

Discuss about Noryl Blends.

Explain polymer-polymer miscibility by thermodynamic approach.

Discuss briefly about how blend components are selected.

List the applications of Thermoplastic Elastomer.

Explain the solution mixing technique for preparing polymer blends.

Explain the Differential Scanning Calorimetry technique to characterize a blend.

What is reactive compatibilization? What are the advantages of Reactive compatibilization?

Explain briefly about Twin screw extruders and its advantages in polymer mixing.

Explain the Thermo Gravimetric Analysis to characterize a blend.

Discuss briefly about properties and applications of PVC/NBR blends.

Write a short note on Inter Penetrating Networks

Explain the construction and working of Two roll mill.1

Discuss about ABS copolymer.

Write a short note on Scanning Electron Microscope (SEM).

Explain the construction and working of a Banburry mixture.