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Flow Behaviour of Blends of Poly(ethylene-Co-Acrylic Acid) and Epoxidised Natural Rubber

  • S. Mohanty , A. K. Bhattacharya , G. B. Nando and B. R. Gupta
Published/Copyright: June 4, 2013
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International Polymer Processing
From the journal International Polymer Processing Volume 13 Issue 1

Abstract

Processability and rheological properties of the blends of poly(ethylene-Co-acrylic acid) (PEA) and epoxidised natural rubber (ENR) have been studied by a Monsanto Processibility Tester (MPT). The blends were found to be miscible during reactive processing due to chemical interaction via esterification reaction at higher proportion of PEA. The rheological properties were studied at three different temperatures (120°C, 130°C and 150°C), five different shear rates in the range from 122s−1 to 2452s−1 and at three different shear stresses (i.e., 400, 500 and 600 kPa). The melt viscosities of the blends at 120°C and 130°C show a positive deviation at lower shear rates and shear stress and at higher proportions of PEA and a negative deviation at higher shear rates and shear stress and lower proportion of PEA, where as at higher temperature (i.e. at 150°C) of melt processing the viscosities show positive deviation (at all shear rates for all the blends) with respect to that calculated by additivity rule. This variation in melt viscosities has been explained on the basis of chemical reaction via esterification leading to grafted structure i.e., PEA-g-ENR.

* Mail address: Prof. B. R. Gupta, Rubber Technology Centre, Indian Institute of Technology, Kharagpur-721302, India
Received: 1998-1-14
Accepted: 1998-1-15
Published Online: 2013-06-04
Published in Print: 1998-03-01

© 1998, Carl Hanser Verlag, Munich

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. J. A. Biesenberger, G. Astarita, D. C. Bogue
  5. Screw Extrusion/Mixing
  6. Modeling Solids Conveying in Polymer Extruders
  7. Comparison between LDPE Conventional and Autothermal Extrusion Characteristics
  8. Transesterification of Ethylene Acetate Copolymer in a Twin Screw Extruder
  9. Stabilising the Structure of HDPE by the Use of Highly-dispersed Mixture of Fe/FeO
  10. Pumping Characteristics of an Intermeshing Co-rotating Twin Screw Extruder
  11. Flow Behaviour of Blends of Poly(ethylene-Co-Acrylic Acid) and Epoxidised Natural Rubber
  12. Die Extrusion
  13. Rheological Behaviour of HDPE/PA 11 Blends
  14. Melt Flow Properties of LDPE/HDPE Blends in Capillary Extrusion
  15. Fibers and Film
  16. Rheological Behaviour of LLDPE/LDPE Blends under Elongational Deformation
  17. Processing/Structure Relationships of Mica-Filled PE-Films with Low Oxygen Permeability
  18. On the Charge State of Melt-Blown Polymer Materials
  19. Temperature Measuring in Plastics Processing with Infrared Radiation Thermometers
  20. Comparative Study of Structure Development in Melt Spinning Polyolefin Fibers
  21. Moulding
  22. Sintering Rheology of Semi-Crystalline Polymers
  23. Molding
  24. Melt Flow Instabilities of Filled HDPE
  25. Experimental Validation of Shrinkage Predictions for Injection Molded Products
https://doi.org/10.3139/217.980033

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. J. A. Biesenberger, G. Astarita, D. C. Bogue
  5. Screw Extrusion/Mixing
  6. Modeling Solids Conveying in Polymer Extruders
  7. Comparison between LDPE Conventional and Autothermal Extrusion Characteristics
  8. Transesterification of Ethylene Acetate Copolymer in a Twin Screw Extruder
  9. Stabilising the Structure of HDPE by the Use of Highly-dispersed Mixture of Fe/FeO
  10. Pumping Characteristics of an Intermeshing Co-rotating Twin Screw Extruder
  11. Flow Behaviour of Blends of Poly(ethylene-Co-Acrylic Acid) and Epoxidised Natural Rubber
  12. Die Extrusion
  13. Rheological Behaviour of HDPE/PA 11 Blends
  14. Melt Flow Properties of LDPE/HDPE Blends in Capillary Extrusion
  15. Fibers and Film
  16. Rheological Behaviour of LLDPE/LDPE Blends under Elongational Deformation
  17. Processing/Structure Relationships of Mica-Filled PE-Films with Low Oxygen Permeability
  18. On the Charge State of Melt-Blown Polymer Materials
  19. Temperature Measuring in Plastics Processing with Infrared Radiation Thermometers
  20. Comparative Study of Structure Development in Melt Spinning Polyolefin Fibers
  21. Moulding
  22. Sintering Rheology of Semi-Crystalline Polymers
  23. Molding
  24. Melt Flow Instabilities of Filled HDPE
  25. Experimental Validation of Shrinkage Predictions for Injection Molded Products
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