Course outline

Elastomeric Technology

Course ID: 0910 115650

By Prof. J.W.M. Noordermeer

Chapter 1: Introduction

·	References concerning rubber technology

·	Definition of a rubber

·	History of rubber

·	World sales of NR and synthetic rubber in comparison with thermoplastics

·	Most important applications for rubbers

·	Rubber technology

Chapter 2: Rubber Elasticity

·	Macromolecular chain models

o	The simple molecule model

o	The molecular model with fixed valence angles, but free rotation

o	The equivalent statistical chain model

·	Thermodynamical origin of rubber elasticity

o	Thermodynamics of rubber

o	Merging the equivalent statistical model into thermodynamics

Chapter 3: Network Models

·	The ideal rubber network

·	Corrections on the ideal rubber network

o	Entanglements

o	Loose/dangling chain ends

Chapter 4: Stress Strain Relations for Different Types of Deformation

·	Uniaxial strain and uniaxial compression

·	Biaxial strain

·	Simple shear

·	All-sided compression

·	The Poisson constant

·	Relation to some practical examples

Chapter 5: Models based on Continuum Mechanics

·	Mooney-Rivlin theory

·	Alternative models based on the formalism of strain invariants

·	Van der Waals network model

Chapter 6: Rubber Types

·	Natural rubber (NR)

·	Synthetic polyisoprene (IR)

·	Butadiene rubber (BR)

·	Styrene-butadiene rubber (SBR)

·	Ethylene-propylene (-diene) rubber (EPM and EPDM)

·	Butyl rubber (IIR)

·	Nitrile rubber (NBR)

·	Polychloroprene (CR)

·	Specialties

Chapter 7: Principles of Compounding

·	Reinforcing and non-reinforcing fillers

·	Carbon black

Silica

·	Mineral fillers

·	Plasticizer and extender oils

Chapter 8: Vulcanization

·	Introduction

·	Sulfur vulcanization

·	Peroxide vulcanization

·	Other vulcanization systems

·	Vulcanizate properties as a function of the degree of crosslinking

▪ Blackboard UT