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  • Title
  • DEDICATION
  • CERTIFICATE
  • DECLARATION
  • ACKNOWLEDGEMENT
  • GLOSSARY OF TERMS
  • CONTENTS
  • 1 Introduction
  • 1.1 Multiphase polymer systems and model studies
  • 1.2 Polymer blends: general discussion
  • 1.2.1 Composite materials: Polymer blends, Polymer alloys and IPNs
  • 1.2.2 General characteristics
  • 1.3 Blending process
  • 1.3.1 General remarks
  • 1.3.2 Methods of blending
  • Table 1.2. Methods of polymer blending
  • 1.4 Characterisation techniques
  • 1.4.1 Glass transition
  • Dynamic mechanical analysis
  • Dielectric methods
  • Dilatometric methods
  • Calorimetric methods
  • Thermo-optical analysis
  • Radioluminescence spectroscopy
  • 1.4.2 Microscopy
  • Optical microscopy 98
  • Scanning electron microscopy (SEM) 3, 98, 99, 100
  • Transmission electron microscopy 3.98
  • Atomic force microscopy
  • 1.4.3 Scattering methods: 3,108
  • 1.4.4 Spectroscopic techniques
  • 1.4.5 Viscosity measurements
  • Viscometric technique
  • Rheological behaviour
  • 1.5 Short review of models
  • 1.5.1 General discussion
  • 1.5.2 Mechanical coupling models
  • 1.5.3 Self consistent models/mean field theories
  • Three phase model (or doubly embedded model)
  • Vander poel model
  • Vander poel-Smith model
  • Christen and Lo (1979)
  • Composite sphere model
  • Hashins equations for the model
  • Christensens equations for the model
  • 1.5.4 Bouading or limiting models
  • Reuss constant stress and voigt constant strain models33
  • Paul model
  • Hashin and Shtrikman model
  • 1.5.5 Semi empirical models
  • Kerner-Nielsen
  • Halpin-Tsai model
  • Lewis and Neilsen model
  • 1.5.6 Model for IPN system
  • 1.6 Scope and objectives of the work
  • a) Nitrile rubber (NBR) and ethylene-vinyl acetate copolymer (EVA) blends - (Physical blends and statically vulcanised)
  • b) Natural rubber (NR) and ethylene-vinyl acetate copolymer (EVA) blends (Physical blends and statically vulcanised)
  • c) Natural rubber (NR) and 1, 2 polybutadiene (1, 2 PBD) blends (Physical blends)
  • d) Nylon 6 and Ethylene-propylene rubber (EPM) blends
  • e) Nitrile rubber (NBR) and isotactie polypropylene (PP) blends
  • f) Semi-IPNs based on natural kubber (NR) and polystyrene (PS)
  • 2 Computations and experimental aspects
  • 2.1 Kerner models
  • 2.1.1 Solution procedure for discrete particle model
  • Case 1
  • Case 2
  • 2.1.2 Packed grain or polyaggregate model
  • Binary blend
  • Case 1 Solution method considering Poisson ratio as real parameter
  • Case 2 Method considering poisson ratio as complex parameter
  • Case 3 Solution of polyaggregate (packed-grain) model for multicomponent system
  • 2.2 Computations using input data and graphical representation
  • 2.3 Experimental aspects
  • Results and disscussion
  • 3 Physical blends
  • 3.1 Nitrile rubber (NBR) and ethylene-vinyl acetate copolymer (EVA) blends
  • 3.1.1 Introduction
  • 3.1.2 Experimental details
  • 3.1.3 Results and discussion
  • 30/70 NBR/EVA blend
  • 50/50 NBR/EVA blend
  • 70/30 NRR/EVA blend
  • 3.2 Nitrile rubber (NBR) and isotactic polypropylene (PP) blends
  • 3.2.1 Introduction
  • 3.2.2 Experimental details
  • 3.2.3 Results and discussion
  • 30/70 PP/NBR blend
  • 50/50 PP/NBR blend
  • 70/30 PP/NBR blend
  • 3.3 Natural rubber (NR) and 1, 2 polybutadiene (1, 2 PBD) blends
  • 3.3.1 Introduction
  • 3.3.2 Experimental details
  • 3.3.3 Results and discussions
  • 70/30 1, 2 PBD/NR blend
  • 50/50 1, 2 PBD/NR blend
  • 30/70 1, 2 PBD/NR blend
  • 3.4 Natural rubber (NR) and ethylene vinyl acetate copolymer (EVA) blends
  • 3.4.1 Introduction
  • 3.4.2 Experimental details
  • 3.4.3 Results and discussion
  • 30/70 NR/EVA blend
  • 50/50 NR/EVA blend
  • 70/30 NR EVA blend
  • 3.5 Nylon6 and Ethylene -propylene rubber (EPM) blends
  • 3.5.1 Introduction
  • 3.5.2 Experimental details
  • 3.5.2 Results and disscussion
  • 30/70 EPM/nylon 6 blend
  • 50/50 EPM/nylon 6 blend
  • 70/30 EPM/nylon 6 blend
  • 4 Statically crosslinked blends
  • 4.1 Nitrile rubber (NBR) and ethylene Vinyl acetate co-polymer (EVA) Blends (static cured)
  • 4.1.1 Introduction
  • 4.1.2 Experimental details
  • 4.1.3 Results and discussion
  • 30/70 NBR/EVA blend
  • Comparison with uncured blend system
  • 50/50 NBR/EVA blend
  • 70/30 NBR/EVA blend
  • 4.2 Natural rubber (NR) and ethylene vinyl acetate copolymer (EVA) blends (static cured)
  • 4.2.1 Introduction
  • 4.2.2 Experimental details
  • 4.2.3 Resuits and discussion
  • 30/70 NR/EVA mix-cured blend
  • 50/50 NR/EVA mix cured blend
  • 70/30 NR EVA mix cured blend
  • 5 Dynamically vulcanised blends
  • 5.1 Nitrile rubber (NBR) and isotactic polypropylene (PP) blends (TPV)
  • 5.1.1 Introduction
  • 5.1.2 Experimental
  • 5.1.3 Results and discussion
  • 5.2 Nylon6 and ethylene propylene rubber (EPM) TPV blends
  • 5.2.1 Introduction
  • 5.2.2 Experimental
  • 5.2.3 Results and discussion
  • 6 Compatibilised blends
  • 6.1 Nitrile rubber (NBR) and isotactic polypropylene (PP) blends
  • 6.1.1 Introduction
  • 6.1.2 Experimental
  • 6.1.3 Results and discussion
  • 6.2 Binary blends of Nylon 6 and ethylene propylene-graft maleic anhydride (EPM-9-MA)
  • 6.2.1 Introduction
  • 6.2.2 Experimental
  • 6.2.3 Results and discussion
  • 30/70 EPM-g-MA / NYLON 6
  • 50/50 EPM g MA / NYLON 6 blend
  • 70/30 EPM -g-MA / NYLON 6 blend
  • Comparison of EPM/NYLON 6 and EPM-g-MA/NYLON 6 blends
  • Comparison of predictions of EPM/NYLON 6 blend with the experimental data of EPM/NYLON 6 and EPM-G-MA /NYLON 6 blends
  • 6.3 Ternary blends of Nylon6, ethylene propylene graft maleic anhydride (EPM-g-MA) and ethylene propylene Rubber (EPM)
  • 6.3.1 Introduction
  • 6.3.2 Experimental
  • 6.3.3 Results and discussion
  • 30/1/70 EPM/EPM-g-MA/NYLON 6 blend
  • 30/2.5 -20/70 EPM/EPM-g-MA/NYLON 6 blends
  • 7 Interpenetrating polymer networks (IPNs)
  • 7.1 Semi-IPNS made of natural rubber (NR) and polystyrene (PS)
  • 7.1.1 Introduction
  • 7.1.2 Experimental
  • 7.1.3 Results and discussion
  • 30/70 NR/PS Semi-IPN
  • 50/50 NR/PS semi-IPN
  • 70/30 NR/PS semi- IPN
  • CONCLUSION
  • Blends of nitrile rubber (NBR) and ethylene-vinyl acetate copolymer (EVA)
  • Blends of natural rubber (NR) and ethylene - vinyl acetate copolymer (EVA)
  • Blends of NR and 1, 2 polybutadiene (1, 2 PBD)
  • Nitrile rubber (NBR) and isotactic polypropylene (PP) blends
  • Dynamically vulcanised 70/30 PP/NBR blends
  • Compatibilised binary blends of 70/30 PP/NBR
  • Blends of nylon 6 and ethylene -propylene rubber (EPM)
  • Dynamicdy vulcanised binary blends of 50/50 EPM/nylon6
  • Binary blends of EPM-g-MA (maleic-anhydride grafted ethylene propylene copolymer) and nylon 6
  • Ternary blends of ethylene-propylene copolymer (EPM), maleic anhydride grafted EPM (EPM-g-MA) and nylon 6
  • Semi-IPNs based on natural rubber (NR) and polystyrene (PS)
  • References
  • Future work
  • List of publications
  • About the author
  • APPENDICES