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Journal of Wood Science

Official Journal of the Japan Wood Research Society

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Changes in micropores in dry wood with elapsed time in the environment

Journal of Wood Science volume 54, pages 515–519 (2008)Cite this article

Abstract

To investigate the changes in microstructures of wood with elapsed time in the environment, CO2 adsorption onto dry wood was measured at ice-water temperature (273 K) for samples aged from 0.1 years to over 1000 years. The micropore size distribution was obtained using the Horvath-Kawazoe method. Micropores smaller than 0.6 nm in wood decreased in number with elapsed time in the environment, and a negative correlation was found between cumulative pore volume for pores smaller than 0.6 nm and elapsed time in the environment. Cumulative pore volume in the 1000-year sample was almost half of that in the 0.1- year sample. Micropores smaller than 0.6 nm in wood with a few decades or more of elapsed time increased in number after rewetting and drying. Consequently, microstructures of wood with longer time elapsed in the environment were considered to be more stable, because of longer-term thermal motion and possibly more repeated moisture adsorption and desorption and/or temperature variation in the environment.

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Authors and Affiliations

  1. Advanced Wood-Based Material Technology Group, Materials Research Institute for Sustainable Development, National Institute of Advanced Industrial Science and Technology (AIST), 2266-98 Anagahora, Shimoshidami, Moriyama-ku, Nagoya, 463-8560, Japan

    Keisuke Kojiro

  2. Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, 606-8522, Japan

    Yuzo Furuta, Makoto Ohkoshi & Yutaka Ishimaru

  3. Research Institute for Sustainable Humanosphere, Kyoto University, Uji, 611-0011, Japan

    Misao Yokoyama, Junji Sugiyama & Shuichi Kawai

  4. Nara National Research Institute for Cultural Properties, Nara, 630-8577, Japan

    Takumi Mitsutani

  5. National Museum of Japanese History, Sakura, 285-8502, Japan

    Hiromasa Ozaki, Minoru Sakamoto & Mineo Imamura

Authors
  1. Keisuke Kojiro
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  2. Yuzo Furuta
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  3. Makoto Ohkoshi
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  4. Yutaka Ishimaru
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  5. Misao Yokoyama
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  6. Junji Sugiyama
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  7. Shuichi Kawai
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  8. Takumi Mitsutani
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  9. Hiromasa Ozaki
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  10. Minoru Sakamoto
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  11. Mineo Imamura
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Correspondence to Keisuke Kojiro.

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Kojiro, K., Furuta, Y., Ohkoshi, M. et al. Changes in micropores in dry wood with elapsed time in the environment. J Wood Sci 54, 515–519 (2008). https://doi.org/10.1007/s10086-008-0973-5

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  • DOI: https://doi.org/10.1007/s10086-008-0973-5

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