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Effect of Processing Conditions on the Dispersion of Vapor Grown Carbon Fiber in a Polyamide 6 and the Crystalline Structure of their Composites by Melt Compounding

  • T. Koyama , S. Tanoue and Y. Iemoto
Published/Copyright: April 6, 2013
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International Polymer Processing
From the journal International Polymer Processing Volume 25 Issue 3

Abstract

We present the preparation of polyamide 6 (PA6)/Vapor Grown Carbon Fiber (VGCF) composites by melt compounding. Two commercialized forms of PA6 with different melt flow rates (herein named PA6-low and PA6-high.) and two VGCF, VGCF-H (aspect ratio: 40) and VGCF-S (aspect ratio: 100) were used in this study. Young's modulus and the yield strength increased when small amount of VGCF (e.g. 1 wt.%) was added to PA6, and the properties of PA6-low/VGCF composites increased with a decrease in the aspect ratio of VGCF. According to scanning electron microscopy (SEM) observations, the dispersion state of VGCF in PA6-low/VGCF-S composites is superior to the PA6-low/VGCF-H composites. This may be due to the weakening of tensile properties caused by cracks between the adjoining crystals generated by the large amount of VGCF that act as nucleants. Hence, the aspect ratio of VGCF has an influence on the tensile properties of PA6/VGCF composites. The mechanical properties were shown to increase with VGCF-H length. Matrix viscosity and the screw rotation speed were also found to influence the mechanical properties of PA6/VGCF-H composites.

∗ Mail address: Shuichi Tanoue, Graduate School of Engineering, University of Fukui, Bunkyo, Fukui 910-8507, Japan. E-mail:

References

Allaoui, A., et al., “Mechanical and Electrical Properties of a MWNT/Epoxy Composite”, Compos. Sci. Technol., 62, 1993–1998(2002), DOI: 10.1016/S0266-3538(02)00129-XSearch in Google Scholar

Bower, C., et al., “Deformation of Carbon Nanotubes in Nanotube-polymer Composites”, Appl. Phys. Lett., 74, 3317–3319(1999), DOI: 10.1063/1.123330Search in Google Scholar

Brosse, A.-C., et al., “Effect of Multi-walled Carbon Nanotubes on the Lamellae Morphology of Polyamide-6”, Polymer, 49, 4680–4686(2008), DOI: 10.1016/j.polymer.2008.08.003Search in Google Scholar

Cho, J. W., Paul, D. R., “Nylon 6 Nanocomposites by Melt Compounding”, Polymer, 42, 1083–1094(2001), DOI: 10.1016/S0032-3861(00)00380-3Search in Google Scholar

Choi, Y. K., et al., “Mechanical and Thermal Properties of Vapor-grown Carbon Nanofiber and Polycarbonate Composite Sheets”, Materials Lett., 59, 3514–3520(2005), DOI: 10.1016/j.matlet.2005.05.082Search in Google Scholar

Christiani, B. R., Maxfield, M., U.S. Patent 5 747 560 (1998)Search in Google Scholar

Fornes, T. D., Paul, D. R., “Crystallization Behavior of Nylon 6 Nanocomposites”, Polymer, 44, 3945–3961(2003), DOI: 10.1016/S0032-3861(03)00344-6Search in Google Scholar

Kearns, J. C., Shambaugh, R. L., “Polypropylene Fibers Reinforced with Carbon Nanotubes”, J. Appl. Polym. Sci., 86, 2079–2084(2002), DOI: 10.1002/app.11160Search in Google Scholar

Kojima, Y., et al., “Mechanical Properties of Nylon 6-clay Hybrid”, J. Mater. Res., 8, 1185–1189(1993), DOI: 10.1557/JMR.1993.1185Search in Google Scholar

Kumar, S., et al., “Fibers from Polypropylene/Nano Carbon Fiber Composites”, Polymer, 43, 1701–1703(2002), DOI: 10.1016/S0032-3861(01)00744-3Search in Google Scholar

Liu, L., et al., “Studies on Nylon 6/Clay Nanocomposites by Melt-intercalation Process”, J. Appl. Polym. Sci., 71, 1133–1138(1999), DOI: 10.1002/(SICI)1097-4628(19990214)71:7<1133::AID-APP11>3.0.CO;2-NSearch in Google Scholar

Liu, T. X., et al., “Morphology and Mechanical Properties of Multiwalled Carbon Nanotubes Reinforced Nylon-6 Composites”, Macromolecules, 37, 7214–7222(2004), DOI: 10.1021/ma049132tSearch in Google Scholar

Murahashi, S., et al.: Koubunshikagaku, 4th Edition, Kyoritsu shuppan, Tokyo(1993)Search in Google Scholar

Patton, R. D., et al., “Vapor Growth Carbon Fiber Composites with Epoxy and Poly(phenylene sulfide) Matrices”, Compos. Part A, 30, 1081–1091(1999), DOI: 10.1016/S1359-835X(99)00018-4Search in Google Scholar

Qian, D., et al., “Load Transfer and Deformation Mechanism in Carbon Nanotube–polystyrene Composites”, Appl. Phys. Lett., 76, 2868–2870(2000), DOI: 10.1063/1.126500Search in Google Scholar

Sandler, J., et al., “Carbon-nanofibre-reinforced Poly(ether ether ketone) Composites”, Compos. Part A, 33, 1033–1039(2002), DOI: 10.1016/S1359-835X(02)00084-2Search in Google Scholar

Schadler, L. S., et al., “Load Transfer in Carbon Nanotube Epoxy Composites”, Appl. Phys. Lett., 73, 3842–3844(1998), DOI: 10.1063/1.122911Search in Google Scholar

Schrauwen, B. A. G., et al., “Structure, Deformation, and Failure of Flow-Oriented Semicrystalline Polymer”, Macromolecules, 37, 8618–8633(2004), DOI: 10.1021/ma048884kSearch in Google Scholar

Received: 2009-07-19
Received: 2010-02-26
Published Online: 2013-04-06
Published in Print: 2010-07-01

© 2010, Carl Hanser Verlag, Munich

Articles in the same Issue

  1. Contents
  2. Contents
  3. Regular Contributed Articles
  4. Improvement in the Scratch Resistance of Polymers by Roller Burnishing Process
  5. Effect of Processing Conditions on the Dispersion of Vapor Grown Carbon Fiber in a Polyamide 6 and the Crystalline Structure of their Composites by Melt Compounding
  6. Dynamics of Filler Size and Spatial Distribution in a Plasticating Single Screw Extruder – Modeling and Experimental Observations
  7. Modification of Polyester Fibers by Bactericides Using Crazing Mechanism
  8. An Assessment of Erosion Wear Response of SiC Filled Epoxy Composites Reinforced with Glass and Bamboo Fibers
  9. A Global Model for Closely Intermeshing Counter-rotating Twin Screw Extruders with Flood Feeding
  10. Effects of Injection Molding Holding Pressure on the Replication of Surface Microfeatures
  11. Scaling-up a Reactive Extrusion Operation: A One-dimensional Simulation Analysis
  12. Modeling of Agglomerate Dispersion in Single Screw Extruders
  13. PPS-News
  14. PPS News
  15. Seikei Kakou Abstracts
  16. Seikei-Kakou Abstracts
https://doi.org/10.3139/217.2307

Articles in the same Issue

  1. Contents
  2. Contents
  3. Regular Contributed Articles
  4. Improvement in the Scratch Resistance of Polymers by Roller Burnishing Process
  5. Effect of Processing Conditions on the Dispersion of Vapor Grown Carbon Fiber in a Polyamide 6 and the Crystalline Structure of their Composites by Melt Compounding
  6. Dynamics of Filler Size and Spatial Distribution in a Plasticating Single Screw Extruder – Modeling and Experimental Observations
  7. Modification of Polyester Fibers by Bactericides Using Crazing Mechanism
  8. An Assessment of Erosion Wear Response of SiC Filled Epoxy Composites Reinforced with Glass and Bamboo Fibers
  9. A Global Model for Closely Intermeshing Counter-rotating Twin Screw Extruders with Flood Feeding
  10. Effects of Injection Molding Holding Pressure on the Replication of Surface Microfeatures
  11. Scaling-up a Reactive Extrusion Operation: A One-dimensional Simulation Analysis
  12. Modeling of Agglomerate Dispersion in Single Screw Extruders
  13. PPS-News
  14. PPS News
  15. Seikei Kakou Abstracts
  16. Seikei-Kakou Abstracts
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