Summary
The effects of aging and extraction on the polar and dispersion components of the surface free energy of redwood and Douglas-fir were investigated. Extracted Douglas-fir and extracted and unextracted redwood have similar dispersion and polar force contributions to the total surface free energy, with the polar forces marginally predominant. Unextracted Douglas-fir has predominantly dispersion forces, an observation probably related to low or nonpolar extractives in this species. Loss of surface free energy with aging appears to be related to environmental rather than wood factors.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
ASTM. 1970. Annual book of ASTM, Part 16
Anderson, A. B. 1961. J. Inst. Wood Sci. (8): 14–33
Baier, R. E., Shafrin, E. G., Zisman, W. A. 1968. Sci. 162 (3860): 1360–1368
Bryant, B. S., Stensrud, R. K. 1954. Forest Prod. J. (4): 158
Chen, C. M. 1970. Forest Prod. J. 20 (4): 36–40
Currier, R. A. 1958. Forest Prod. J. 8 (4): 128–136
Defay, R., Prigogine, I., Bellemans, A., Everett, D. H. 1966. Surface tension and adsorption. John Wiley and Sons, Inc., New York, N.Y. 85–94
DeLollis, N. J. 1968. Adhes. Age. 11 (12): 21–25
Fowkes, F. M. 1964. Ind. Eng. Chem. 56 (12): 40–52
Graham, H. M., Kurth, E. F. 1949. Ind. Eng. Chem. 41 (2): 409–414
Gray, A. 1962. Forest Prod. J. 12 (9): 452–461
Hancock, W. V. 1963. Forest Prod. J. 13 (2): 81–88
Herczeg, A. 1965. Forest Prod. J. 15 (11): 499–505
Lynch, C. J. 1963. Int. Sci. Technol. (20): 25–34
Marian, J. E., Stumbo, D. A. 1962. Holzforschung 16 (5, 6): 134–148; 168–181
Marian, J. E. 1967. Wood, reconstituted wood and glued laminated structures. In: Houwink, R. and Salomon, G. (Ed.): Adhesion and Adhesives. Elsevier Publishing Co., Amsterdam, London, New York. Vol. 2. Chap. 14: 167–280
Michaels, A. S. 1963. Fundamentals of surface chemistry and surface physics. In: Symposium on Properties of Surfaces. ASTM Materials Sci. Ser. 4, pp. 3–20
Nguyen, T. 1973. Wettability and gluability of Apitong (Dipterocarpus grandiflorus Blanco). Master's thesis. Univ. Philippines, Los Banos, Philippines
Nguyen, T., Johns, W. E. 1977. Wood Sci. Technol. In press
Northcott, P. L., Colbeck, H. G. M., Hancock, W. V., Shen, K. C. 1959. Forest Prod. J. 9 (12): 442–451
Stumbo, D. A. 1964. Forest Prod. J. 14 (12): 582–589
Truax, T. R. 1929. USDA Bull. No. 1502
Zisman, W. A. 1964. In: Contact angle, wettability and adhesion. Adv. Chem. Ser. 43, Washington, D.C.: Am. Chem. Soc. 1
Zisman, W. A. 1968. The solid-liquid interface-an essential and active frontier of science. Adv. Chem. Ser. 87. Am. Chem. Soc., Washington, D.C., pp. 1–9
Zisman, W. A. 1972. Surface energies of wetting, spreading and adhesion. Presented at the 49th Annual Meeting of Federation of Societies for Paint Technology on October 29, 1971, Detroit, Michigan
Author information
Authors and Affiliations
Additional information
The authors wish to thank James R. Olson for helping with the computer programming in solving the harmonic equation
Rights and permissions
About this article
Cite this article
Nguyen, T., Johns, W.E. The effects of aging and extraction on the surface free energy of Douglas fir and redwood. Wood Sci. Technol. 13, 29–40 (1979). https://doi.org/10.1007/BF00350173
Issue Date:
DOI: https://doi.org/10.1007/BF00350173