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On the Charge State of Melt-Blown Polymer Materials

  • L. S. Pinchuk , A. G. Kravtsov , Yu. I. Voronezhtsev and Yu. V. Gromyko
Published/Copyright: June 4, 2013
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International Polymer Processing
From the journal International Polymer Processing Volume 13 Issue 1

Abstract

Fibrous polymer materials formed by LDPE melt spraying with a gas flow during extrusion were exposed to thermally stimulated depolarization. The analysis of thermally stimulated current spectra and the sample charge state has shown that the fibers possess the spontaneous polarizing charge. IR-spectroscopy has proved the material production to be accompanied by vinylene, vinyl, transvinylene and other nonsaturated groups formation. The latters are, probably, behaving as neutral trapping centers during their interaction with charge carriers formed at melt dispersion by the compressed gas flow and its contact with metal parts of equipment. The kinetics of these processes can be monitored by regulating technological regimes of fibrous material formation. Intensified action on the polymer melt might rise the spontaneous polarizing charge whose density can reach 10−10 to 10−12 C/cm2. Charge of the materials under study is rather stable. It does not fall below 40% upon a 160-days storage in humid atmosphere. It appears thus that the technique of fibrous material production by polymer melt spraying is an electret method.

* Mail Address: Prof. Dr. L. S. Pinchuk, Department of Hermetology, Metal-Polymer Research Institute of Belarussian Academy of Sciences, 32A Kirov Street, 246652 Gomel, Republic of Belarus
Received: 1997-6-3
Accepted: 1997-10-30
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/10.3139/217.980067

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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