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Effects of nano-silver impregnation on brittleness, physical and mechanical properties of heat-treated hardwoods

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Abstract

The present study investigates the effect of heat treatment of untreated and nano-silver-impregnated Populus nigra, Populus deltoides and Fagus orientalis on the physical and mechanical properties. Specimens were impregnated with a 200-ppm aqueous silver nanoparticles suspension. Heat treatment was carried out at temperatures of 135 ± 3 °C and 185 ± 3 °C. Nano-silver impregnation aggravated the effects of heat treatment. Although significant in some cases, nano-silver impregnation did not seem to have great effect on physical properties. It may be concluded that although NS impregnation aggravated the effects of heat treatment on solid woods, other factors may also be involved such as the species and density of the wood.

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Acknowledgments

The authors are grateful to Mr. Mohsen Lotfalizadeh Mehrabadi for his great consultation help. We also appreciate kind collaboration of Mr. Saeed Abtahi (The Univ. of Tehran), and Engines. Habib Noori and Mr. Farzad Arbabi (SRTTU) for primary cutting and preparation of woods. We also thank cooperation of Mr. Mohammad Reza Variji, Mr. Sadegh Tolou Manbar-geli and Mr. Abolfazl Rezaii, active members at Wood Industries Scientific Association of SRTTU in testing processes.

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Authors and Affiliations

  1. Wood Science and Technology Department, The Faculty of Civil Engineering, Shahid Rajaee Teacher Training University (SRTTU), Lavizan, Shabanloo St., Tehran, Iran

    Hamid Reza Taghiyari

  2. Wood and Paper Science and Technology Department, Faculty of Natural Resources, The University of Tehran, Tehran, Iran

    Aliakbar Enayati & Hadi Gholamiyan

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  1. Hamid Reza Taghiyari
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  2. Aliakbar Enayati
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  3. Hadi Gholamiyan
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Correspondence to Hamid Reza Taghiyari.

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Taghiyari, H.R., Enayati, A. & Gholamiyan, H. Effects of nano-silver impregnation on brittleness, physical and mechanical properties of heat-treated hardwoods. Wood Sci Technol 47, 467–480 (2013). https://doi.org/10.1007/s00226-012-0506-7

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  • DOI: https://doi.org/10.1007/s00226-012-0506-7

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