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Course Detail

Course Name Polymer Processing
Course Code 15CHE441
Program B. Tech. in Chemical Engineering
Year Taught 2019


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.

Text Books

  1. B. Strong, “Plastics: Materials and Processing”, Prentice Hall, 2012.
  2. 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.

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