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Full Screen- TITLE
- DEDICATION
- CERTIFICATE
- DECLARATION
- ACKNOWLEDGEMENT
- CONTENTS
- GLOSSARY OF TERMS
- PREFACE
- I INTRODUCTION
- I.1 Types of Carbon Blacks
- I.2 Types of Non-black Fillers
- I.3 Reinforcement of Elastomers by Fillers
- I.4 Effect of Filler on Viscosity of the Rubber Compound
- I.5 Effect of Filler on Crosslinking Process andCure Characteristics
- I.6 Effect of Filler on Vulcanisate Properties
- I.7 Specific Properties Imparted by Fillers
- I.8 Effect of Filler on Thermal Conductivity ofRubber Compounds
- I.9 Heat Transfer and Vulcanisation of Thick Articles
- I.10 Scope of the Work
- I.11 Objectives of the Work
- References
- II EXPERIMENTAL TECHNIQUES
- II.1 Materials Used
- II.2 Preparation of Compounds
- II.3 Testing of Compounds
- II.4 Moulding of Test Samples
- II.5 Testing for Vulcanisate Properties
- II.6 Volume Fraction of Rubber in Swollen Vulcanisate (Vr)
- II.7 Measurement of Resistance to Degradation
- Fig. II.3 Gamma Chamber 900
- II.8 Measurement of Rheological Properties
- II.9 Measurement of Thermal Conductivity
- Fig. II.5 Quick Thermal Conductivity Meter QTM-D3
- Fig. II.6 Quick Thermal Conductivity Meter
- II.10 Measurement of Electrical Properties
- References
- III EFFECT OF ALUMINIUM POWDER ON CURE CHARACTERISTICS AND VULCANISATION KINETICS OF NATURAL RUBBER COMPOUNDS
- III.1 Effect of Fillers on Scorch Time
- III.2 Effect of Fillers on Cure Time and Cure R a t e Index
- III.3 Effect of Fillers on Activation Energy
- III.4 Effect of Filler on Rate Constant K
- III.5 Conclusions
- References
- IV STUDIES ON RHEOLOGICAL BEHAVIOUR OF NATURAL RUBBER COMPOUNDS CONTAINING ALUMINIUM POWDER
- IV.1 Effect of Shear Stress on Viscosity
- IV.2 Effect of Shear Rate on Viscosity
- IV.3 Effect of Temperature and Shear Rate on Viscosity
- IV.4 Effect of Temperature and Quantity of Filler on Flow Behaviour Index (n)
- IV.5 Effect of Aluminium Powder on Die Swell
- IV.6 Deformation of Extrudates
- Fig. IV.6 Photograph of the extrudates at three shearrates at 100oC
- IV.7 Conclusions
- References
- V TECHNOLOGICAL PROPERTIES OF ALUMINIUM POWDER- FILLED VULCANISATES
- V.1 Tensile Strength, Modulus and Elongation at Break
- V.2 Tear Strength
- V.3 Hardness
- V.4 Rebound Resilience
- V.5 Compression Set
- V.6 Din Abrasion Loss
- V.7 Conclusions
- References
- VI THERMAL CONDUCTIVITY OF ALUMINIUM POWDER-FILLED NATURAL RUBBER VULCANISATES
- VI. 1 Effect of Fillers on Thermal Conductivity
- VI.2 Effect of Temperature on Thermal Conductivity
- VI.3 Effect of Thermal Conductivity on Extent of Cross linking
- VI.4 Effect of Aluminum Powder on Electrical Resistivity
- VI.5 Conclusions
- References
- VII AGEING CHARACTERISTICS OF ALUMINIUM POWDER-FILLED NATURAL RUBBER VULCANISATES
- VII.1 Effect of Heat Ageing on Tensile Strength
- VII.2 Effect of γ-Radiation on Tensile Strength
- VII.3 Ozone Resistance of the Vulcanisates
- Fig. VII.l Optical photographs of ozone exposed samples (2 hours)
- Fig. VII.2 Optical photographs of ozone exposed samples (20 hours)
- VII.4 Conclusions
- References
- VIII EVALUATION OF ALUMINIUM POWDER IN TRUCK TYRE RETREAD COMPOUND
- VIII.1 Properties of TR., TRAL, TRAL10, TRAL15 and TRAL 20 Compounds
- VIII.2 Properties of Vulcanisates Containing Aluminium Powder in Polybutadiene Phase
- VIII.3 Properties of Compound Containing Aluminium Powder Dispersed in NR Phase
- VIII.4 Conclusions
- References
- SUMMARY AND CONCLUSIONS
- Scope for Further Work
- LIST OF PUBLICATIONS CONNECTED WITH THIS WORK