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European Journal of Wood and Wood Products

, Volume 69, Issue 4, pp 553–556 | Cite as

Effect of sea water on water absorption and flexural properties of wood-polypropylene composites

  • Saeed Kazemi NajafiEmail author
  • Hamed Younesi Kordkheili
Originals Originalarbeiten

Abstract

The effects of Caspian Sea and Persian Gulf waters on the physical and mechanical properties of wood- polypropylene composites were studied. For physical tests, the composites were immersed in Caspian Sea, Persian Gulf and distilled water and long term water absorption was determined. For mechanical tests, the prepared composites were immersed in Caspian Sea, Persian Gulf and distilled water for 7 or 30 days, removed from water and their flexural properties were measured. The composites immersed in Persian Gulf water exhibited higher water absorption and lower flexural properties than those immersed in Caspian Sea and distilled water, respectively. At higher sawdust content, the type of water is more effective on increasing water absorption and decreasing flexural properties.

Keywords

Water Absorption Wood Flour Flexural Modulus Flexural Property Melt Flow Index 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Einfluss von Meerwasser auf die Wasseraufnahme und die Biegeeigenschaften von Holz-Polypropylen-Werkstoffen

Zusammenfassung

Untersucht wurden die Einflüsse von Meerwasser aus dem Kaspischen Meer und aus dem Persischen Golf auf die physikalischen und mechanischen Eigenschaften von Holz-Polypropylen-Verbundwerkstoffen. Für die physikalische Prüfung wurden die Verbundwerkstoffe in Wasser aus dem Kaspischen Meer, dem Persischen Golf sowie in destilliertem Wasser gelagert und die Langzeit-Wasseraufnahme wurde bestimmt. Für die mechanischen Prüfungen wurden die Verbundwerkstoffe 7 bzw. 30 Tage in Wasser aus dem Kaspischen Meer, dem Persischen Golf sowie in destilliertem Wasser gelagert und danach deren Biegeeigenschaften bestimmt. Die in Wasser aus dem Persischen Golf gelagerten Proben wiesen eine höhere Wasseraufnahme und niedrigere Biegeeigenschaften auf als diejenigen die in Wasser aus dem Kaspischen Meer bzw. in destilliertem Wasser lagerten. Je höher der Sägemehlanteil desto größer ist der Einfluss der Wasserart auf den Anstieg der Wasseraufnahme und die Verschlechterung der Biegeeigenschaften.

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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Saeed Kazemi Najafi
    • 1
    Email author
  • Hamed Younesi Kordkheili
    • 1
  1. 1.Department of Wood and Paper Science and Technology, College of Natural Resources and Marine SciencesTarbiat Modares UniversityNoorIran

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