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Influence of Drawing and Temperature on the Optical and Structural Properties of Monofilament PP Sutures

  • E. A. Seisa
Published/Copyright: April 6, 2013
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International Polymer Processing
From the journal International Polymer Processing Volume 21 Issue 2

Abstract

The influence of drawing and temperature on the optical and structural properties of monofilament polypropylene sutures (PP) were investigated using interferometry. Two techniques have been used in this study: 1) the polarizing interference microscope, 2) multiple-beam Fizeau interferometry. The polarizing interference microscope is used to study the variation of refractive indices and birefringence of PP sutures at different draw ratios and stresses. The stress-strain diagram of PP sutures was studied. The resulting data was used to calculate the average work per chain, Poisson's ratio, strain optical coefficient, Young's modulus and optical orientation function. Multiple-beam Fizeau interferometry was used to study the temperature effect on optical properties of PP sutures with temperature ranging from 19 to 40°C. Relationships between the optical parameters at different temperatures are given. Calculation of the density, crystallinity, dielectric constant and dielectric susceptibility at different temperatures are done. The results obtained, clarify the effect of drawing and temperature on the structure of PP sutures. Microinterferograms are given for illustration.

∗ Mail address: E. A. Seisa, Physics Department, Faculty of Science, Mansoura University, Mansoura, Egypt. E-mail:

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Received: 2005-9-3
Accepted: 2005-11-7
Published Online: 2013-04-06
Published in Print: 2006-05-01

© 2006, Hanser Publishers, Munich

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  1. Contents
  2. Contents
  3. Regular Contributed Articles
  4. Pressure and Temperature Dependence of LDPE Viscosity and Free Volume: The Effect of Molecular Structure
  5. Correlations between Injection Molding Parameters, Morphology and Mechanical Properties of PPS Using Artificial Neural Networks
  6. Investigations into Kinematic Reversal in Non-isothermal Flows in Single-screw Machines
  7. The Effect of Post-extrusion Conditions in Ribbon Extrusion of Polymer Blends
  8. Effect of the Chemical and Morphological Conditions of the Die Wall on the Extrusion of Linear Polyolefins
  9. Investigation of the Heat Affected Zone of Hot-gas Welded PP Joints
  10. Method for the Optimisation of Screw Elements for Tightly Intermeshing, Co-rotating Twin Screw Extruders
  11. Rheology and Processing of Molten Poly(methyl methacrylate) Resins
  12. PLLA Morphology Controlled by Dry-cast Process
  13. Two Component Injection Molding of Phase Separating Blends
  14. A Low Force Valve for Dynamic Control of Molten Plastics in a Mold
  15. Influence of Drawing and Temperature on the Optical and Structural Properties of Monofilament PP Sutures
  16. Mechanical Properties of Rubber-toughened Post-industrial Glass-fiber-reinforced PA66
  17. Thermal Flow Instability in Metal Injection Molding: Experiment and Simulation
  18. Review Paper
  19. State of the Art: Recycling of EPDM Rubber Vulcanizates
  20. PPS News
  21. PPS News
  22. Seikei-Kakou Abstracts
  23. Seikei-Kakou Abstracts
https://doi.org/10.3139/217.0107

Articles in the same Issue

  1. Contents
  2. Contents
  3. Regular Contributed Articles
  4. Pressure and Temperature Dependence of LDPE Viscosity and Free Volume: The Effect of Molecular Structure
  5. Correlations between Injection Molding Parameters, Morphology and Mechanical Properties of PPS Using Artificial Neural Networks
  6. Investigations into Kinematic Reversal in Non-isothermal Flows in Single-screw Machines
  7. The Effect of Post-extrusion Conditions in Ribbon Extrusion of Polymer Blends
  8. Effect of the Chemical and Morphological Conditions of the Die Wall on the Extrusion of Linear Polyolefins
  9. Investigation of the Heat Affected Zone of Hot-gas Welded PP Joints
  10. Method for the Optimisation of Screw Elements for Tightly Intermeshing, Co-rotating Twin Screw Extruders
  11. Rheology and Processing of Molten Poly(methyl methacrylate) Resins
  12. PLLA Morphology Controlled by Dry-cast Process
  13. Two Component Injection Molding of Phase Separating Blends
  14. A Low Force Valve for Dynamic Control of Molten Plastics in a Mold
  15. Influence of Drawing and Temperature on the Optical and Structural Properties of Monofilament PP Sutures
  16. Mechanical Properties of Rubber-toughened Post-industrial Glass-fiber-reinforced PA66
  17. Thermal Flow Instability in Metal Injection Molding: Experiment and Simulation
  18. Review Paper
  19. State of the Art: Recycling of EPDM Rubber Vulcanizates
  20. PPS News
  21. PPS News
  22. Seikei-Kakou Abstracts
  23. Seikei-Kakou Abstracts
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