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Journal of Wood Science

Official Journal of the Japan Wood Research Society

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Assessment of hygroscopic conditioning performance of interior decorative materials IV: Sorption characteristics of wood under high relative humidity condition

Journal of Wood Science volume 44, pages 260–266 (1998)Cite this article

Abstract

The equilibrium moisture content (EMC) of six wood species under desorption conditions of 20°C and 100% → 0% relative humidity (RH), and the rate of adsorption at various depths of three wood species blocks under 98% RH at 22.5°C were studied. There were no significant differences among the EMC values for these six wood species over the RH range 40% → 0%, but there were highly significant differences over the RH range 100% → 50% at constant 20°C. The amount of moisture absorbed in the wood decreased curvilinearly with the increase of depth in the specimens as sorption time increased, and their relation could be represented by a semilogarithmic equation. Time-dependent adsorption behavior at various depths of the wood specimens could be represented by an exponential equation as a function of the product of the difference between moisture contents at equilibrium and initial conditions and the term (1 − e−t/π). The value of π of various wood species was found to increase linearly with the increased depth of the specimen and showed the following trend: hard maple (Acer sp.) > China fir (Cunninghamia lanceolata) > Japanese cedar (Cryptomeria japonica D. Don).

References

  1. Wang SY, Cho CL (1993) Equilibrium moisture contents of sixwood species and their influences. Mokuzai Gakkaishi 39:126–137

    Google Scholar 

  2. Wang SY (1986) Wood physics. National Institute for Compilation and Translation, Taipei, Taiwan, ROC, pp 35–38

  3. Wang SY, Hsieh TY (1987) Studies on the fundamental properties of the economical tree species in Taiwan. 1. Q J Chin For 20(4):925

    Google Scholar 

  4. Wang SY (1988) Studies on the fundamental properties of the economical tree species in Taiwan. III. Q J Exp For NTU 2(2):7–26

    Google Scholar 

  5. Wang SY (1989) Studies on the fundamental properties of the economical tree species in Taiwan. IV. Q J Chin For 22(1):3–22

    Google Scholar 

  6. Wang SY, Shish RS (1990) Studies on the fundamental properties of the economical tree species in Taiwan. VII. For Prod Ind 9(2):122

    Google Scholar 

  7. Wang SY, Chang JJ (1991) Studies on the fundamental properties of the economical tree species in Taiwan. XII. Q J Exp For NTU 5(2):123–149

    Google Scholar 

  8. Wang SY, Cho CL (1994) Study of diffusion coefficients below fiber saturation points in four wood species, Mokuzai Gakkaishi 40:1290–1301

    Google Scholar 

  9. Stamm AJ, Nelson RM (1961) Comparison between measured and theoretical drying diffusion coefficients for southern pine. For Prod J 11:536–543

    CAS  Google Scholar 

  10. Chang ST, Yin HW (1993) Identification of the needle-like crystals appearing on the wood surface ofCalocedrus formosana Florin andCunninghamia lanceolata Hook. Q J Chin For 26(4):111–120

    Google Scholar 

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Authors and Affiliations

  1. Department of Forestry, College of Agriculture, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, Taiwan, ROC

    Song-Yung Wang & Chih-Feng Liau

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  1. Song-Yung Wang
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  2. Chih-Feng Liau
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Correspondence to Song-Yung Wang.

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Wang, SY., Liau, CF. Assessment of hygroscopic conditioning performance of interior decorative materials IV: Sorption characteristics of wood under high relative humidity condition. J Wood Sci 44, 260–266 (1998). https://doi.org/10.1007/BF00581305

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