Course Title: 
Polymer Processing
Course Code: 
Year Taught: 
Undergraduate (UG)
School of Engineering

'Polymer Processing' is an elective course offered in the B. Tech. in Chemical Engineering program at School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore.

Unit 1

Physical Basis of Polymer Processing – Mixing - distributive and dispersive mixing equipments. Extrusion - Features of a Single Screw Extruder, Analysis of Flow, Aspects of Screw Design, Operating Point. Twin Screw Extrusion - Processes – Pipe, Profile, Blown Film, Wire and Cable coating, Fibre, Film and sheet extrusion, Co extrusion - Melt Fracture – Sharskin-Die swell.

Unit 2

Injection Moulding – Principles - Moulding Cycle - Reciprocating Screw injection Moulding Machine - Types of Clamping Units - PVT diagram - Aspects of Product Quality - Hot Runner Moulding - Gas Assisted Injection Moulding. Blow Moulding – Principles - Injection Blow Moulding – Extrusion Blow Moulding – Stretch Blow Moulding - Trouble shooting – Thermoforming - Vacuum Forming - Pressure Forming - Material Stress and Orientation - Applications in Packaging.

Unit 3

Compression and Transfer Moulding - Types of Moulding Machines - Transfer Moulding - Trouble shooting – Comparison. Polymers in Rubbery State - Calendering process - Types of Calendars, Roll Deflection and Cambering - Rotational Moulding - Types of machines, Moulds, Materials. Fibre Reinforced Plastics – Materials - Layup processes - SMC, DMC - Resin Transfer Moulding - Pultrusion, Bag Moulding Processes - Filament Winding. Joining and machining of Plastics - Welding of Plastics - Ultrasonic, Induction, Hotplate, High Frequency. Solvent Cementing - Adhesive Bonding.

  • B. Strong, “Plastics: Materials and Processing”, Prentice Hall, 2012.
  • D. H. Morton-Jones,” Polymer Processing”, Chapman & Hall, 1989.
  • C. A. Harper (Ed), “Handbook of Plastic Processes”, John and Wiley 2006.
  • M. L. Berins (ed.), “Plastics Engineering Handbook of The Society of The Plastics Industry”, Springer, 2012.