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Tensile Damage in Ternary Melamine-Formaldehyde Composites

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Published/Copyright: June 6, 2013
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International Polymer Processing
From the journal International Polymer Processing Volume 14 Issue 3

Abstract

A new ternary planar random fiber composite (PRFC) is studied. It is a discontinuous glass fiber-reinforced, alumina trihydrate (ATH)-filled, melamine-formaldehyde (MF)-based composite of high fire resistance. Composites were manufactured from a commercially available molding compound using a Chopped Strand Mat (CSM), and compared with other ones obtained by varying the composition. Also, a comparison is made for grades with a high content of ATH but with different fiber architectures, realized by replacing the CSM mat by a needled mat.

The amount and type of tensile damage is shown. An elastic-damage type parameter is discussed and used. In-situ Scanning Electron Microscopic (SEM) observations on polished surfaces of samples mounted in a tensile stage and subject to tensile load, and observations on as-obtained surfaces are made. Stress-strain behavior depending on damage is analyzed, and possibilities of improvement of mechanical properties are postulated.

* Mail address: Prof. Dr. R. W. Rychwalski, Dept. of Polymeric Materials, Chalmers University of Technology, SE-41296 Göteborg, Sweden
Received: 1998-10-29
Accepted: 1999-6-14
Published Online: 2013-06-06
Published in Print: 1999-09-01

© 1999, Carl Hanser Verlag, Munich

Articles in the same Issue

  1. Editorial
  2. In Memory of Carl Klason (1938–1997)
  3. Mixing/Screw Extrusion
  4. Structuring of Interface-modified Polymer Blends
  5. Mixing Homologous High Viscosity Ratio Polymer Blends in Converging Flow
  6. The Effect of Miscibility on Rheological and Mechanical Properties of PCL/SAN Blends
  7. Effect of Twin-Screw Extruder Design and Process Conditions on Ultrafine CaCO3 Dispersion into PP
  8. Characterization of the Behavior and Blending Performance of a Continuous Mixer
  9. Die Extrusion
  10. Profile Die Design Based on Flow Balancing
  11. Capillary Flow of Hard-Metal Carbide Powder Compounds
  12. Fiber/Film
  13. Numerical Simulation of the Film Casting Process
  14. Molding
  15. Breakage and Buckling of Fibrous Reinforcements During Fabrication of Thermoplastic Matrix Composites
  16. Long Glass Fibre Reinforcement of Thermo Plastics
  17. Fitting of K-BKZ Model Parameters for the Simulation of Thermoforming
  18. Tensile Damage in Ternary Melamine-Formaldehyde Composites
https://doi.org/10.3139/217.1548

Articles in the same Issue

  1. Editorial
  2. In Memory of Carl Klason (1938–1997)
  3. Mixing/Screw Extrusion
  4. Structuring of Interface-modified Polymer Blends
  5. Mixing Homologous High Viscosity Ratio Polymer Blends in Converging Flow
  6. The Effect of Miscibility on Rheological and Mechanical Properties of PCL/SAN Blends
  7. Effect of Twin-Screw Extruder Design and Process Conditions on Ultrafine CaCO3 Dispersion into PP
  8. Characterization of the Behavior and Blending Performance of a Continuous Mixer
  9. Die Extrusion
  10. Profile Die Design Based on Flow Balancing
  11. Capillary Flow of Hard-Metal Carbide Powder Compounds
  12. Fiber/Film
  13. Numerical Simulation of the Film Casting Process
  14. Molding
  15. Breakage and Buckling of Fibrous Reinforcements During Fabrication of Thermoplastic Matrix Composites
  16. Long Glass Fibre Reinforcement of Thermo Plastics
  17. Fitting of K-BKZ Model Parameters for the Simulation of Thermoforming
  18. Tensile Damage in Ternary Melamine-Formaldehyde Composites
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