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Course Detail

Course Name Rubber Technology
Course Code 22MS801
Credits 4


Unit I

Structure-property relationships in rubbers: structure and rubber elasticity, effect of structure onTg, influence of chemical structure on thermal, mechanical and chemical properties. General Purpose Elastomeric materials ─ Manufacture, structure, properties and applications of Natural rubber (NR), chemically modified NR, Butyl rubber (BR) Styrene butadiene rubber (SBR), poly isoprene rubber (IR), polybutadiene rubber (BR), Butyl Rubber (IIR)

Unit II

Special purpose rubbers: Manufacture, structure, properties and applications of nitrile rubber, Neoprene rubber, EPDM, silicone rubber, Fluorocarbon rubber, polysulphide rubbers, EVA, polyurethanes, thermoplastic elastomers and Ionomers.

Rubber Compounding and Vulcanisation –vulcanizing agents, accelerators, activators, antioxidants, antiozonants, blowing agents, flame retardants, plasticisers, fillers and other additives. General compound design. Reinforcement: principle of reinforcement, filler properties-particle size, surface area and filler structure. Rubber vulcanization: sulphur and non-sulphur systems, assessment of state of cure.

Unit III

Rubber Processing – Machinery used for mixing: two roll mill, internal mixers and continuous mixers, extrusion technology, calendering, fabric coating and spreading process. Moulding techniques – Compression, transfer and injection moulding. Vulcanisation methods: rotocure, autoclave open steam, hot air, fluidised bed, high energy radiation curing.
Case studies on formulation and processing of dry and latex rubber products

Course Objectives

  • To understand the structure property relationship in rubbers
  • To know about the properties and application of general purpose and special purpose rubbers
  • To understand the role of compounding ingredients and mechanism of vulcanization in rubbers
  • To get familiarized with rubber processing techniques and equipment

Course Outcomes

CO1 Select an appropriate rubber for a given application
CO2 Design rubber formulation based on end – use requirement
CO2 Explain various rubber processing techniques used to manufacture rubber products.


  1. I.M.Morton, Rubber Technology Ed. 3, Springer Science & Business Media, 2013
  2. James E. Mark and BurakErman, Science and Technology of Rubber Ed. 3, Elsevier, 2011
  3. Werner Hofmann, Rubber Technology Handbook, Hanser Gardner Publications, 1990
  4. J.S., Rubber Technology Compounding and testing forperformance,HanserPublisher,2001
  5. Brendan Rodgers, Rubber Compounding- Chemistry and Applications Ed. 3, CRC Press, 2021.

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