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  • TITLE
  • DEDICATION
  • CERTIFICATE
  • DECLARATION
  • ACKNOWLEDGEMENT
  • GLOSSARY AND ABBREVIATIONS
  • CONTENTS
  • 1. INTRODUCTION
  • 1.1 General introduction
  • 1.2 Fibre reinforced composites
  • 1.3 Factors influencing the properties of fibre reinforced composites
  • 1.4 Matrix materials used in composites
  • 1.5 Fibres used in composites
  • 1.6 Fillers and other additives used in composites
  • 1.7 Natural fibres as reinforcement in composite
  • 1.8 Theory of reinforcement of short fibre reinforced composites
  • 1.9 Micromechanics of deformation for discontinuous fibre composites
  • 1.10 Natural fibre reinforced composites
  • 1.11 Sisal fibre reinforced composites
  • 1.12 Scope and objective of the present work
  • 1.13 Plan of the thesis
  • 1.14 References
  • 2. MATERIALS AND METHODS
  • 2.1 Materials
  • 2.2 Fibre modifications
  • 2.3 Characterization of treated fibre
  • 2.4 Preparation of composites
  • 2.5 Preparation of composite sheets
  • 2.6 Evaluation of mechanical properties
  • 2.7 Scanning electron microscopy examinations
  • 2.8 Thermo gravimetric Analysis
  • 2.9 Dynamic mechanical analysis
  • 2.10 Rheological measurements
  • 2.11 Fibre breakage analysis
  • 2.12 Electrical property measurements
  • 2.13 Dynamic water absorption
  • 2.14 Environmental effect
  • 2.15 References
  • 3. MECHANICAL PROPERTIES OF SHORT SISAL FIBRE-POLYSTYRENECOMPOSITES
  • 3.1 Introduction
  • 3.2 Results and discussion
  • 3.3 Theoretical modelling of tensile properties
  • 3.4 References
  • 4. EFFECT OF INTERFACE MODIFICATION ON THE MECHANICAL PROPERTIES OF SHORT SISAL FIBRE – POLYSTYRENE COMPOSITES
  • 4.1 Introduction
  • 4.2 Results and Discussion
  • Fig. 4.3- SEM photographs of the surface of sisal fibre (a) untreated fibre (b) benzoylated fibre
  • Fig 4.15 SEM photographs of the fractured surface of sisal fibre-PS composites
  • Fig.4.16 SEM photographs of the surface of fibre pulled out from composite
  • 4.3 References
  • 5. RHEOLOGICAL BEHAVIOUR OF SHORT SISAL-FIBRE-POLYSTYRENE COMPOSITES
  • 5.1 Introduction
  • 5.2 Results and discussion
  • Fig. 5.4 SEM photograph of the cross section of PS-sisal composite
  • Fig. 5.11- SEM photograph
  • Fig.5.13- Optical photographs
  • Fig 5.14. SEM photographs
  • Fig-5.15 -SEM photograph of the surface of U206 extrudate
  • 5.3 References
  • 6. THERMAL AND DYNAMIC MECHANICAL ANALYSIS OF SHORT SISAL FIBRE -POLYSTYRENE COMPOSITES
  • 6.1 Introduction
  • 6.2 Results and Discussion
  • 6.3 References
  • 7. DIELECTRIC PROPERTIES OF SHORT SISAL FIBRE - POLYSTYRENE COMPOSITES
  • 7.1 Introduction
  • 7.2 Results and Discussion
  • Fig- 7.5- Schematic representation of the percolation concept in composite
  • 7.3 References
  • 8. WATER ABSORPTION AND AGEING BEHAVIOUR OF SHORT SISAL FIBRE – POLYSTYRENE COMPOSITES
  • 8.1 Introduction
  • 8.2 Results and Discussion
  • Fig 8.6- SEM photograph
  • 8.3 References
  • 9. CONCLUSION AND FUTURE OUTLOOK
  • 9.1 Conclusion
  • 9.2 Future outlook
  • LIST OF PUBLICATIONS
  • CURRICULUM VITAE