Experiments on The Effect of Ultrasonic Energy on The Absorption of Preservatives By Wood

Authors

  • Stavros Avramidis

Keywords:

Preservatives, ultrasonic energy, CCA pentachlorophenol, creosote

Abstract

The effect of ultrasonic energy on the absorption of CCA by spruce, Douglas-fir, and ponderosa pine, as well as the absorption of pentachlorophenol and creosote by the latter species was investigated at atmospheric pressure and 20 C temperature. The results showed an increase in the percentage uptake due to the effect of the ultrasound for all species and preservatives, with the only exception being creosote at immersion times below 30 minutes. The effect of ultrasound was more pronounced in more permeable species.

References

Borgin, K., and K. Corbett. 1970. Improvement of capillary penetration of liquids in wood by the use of supersonic waves. Wood Sci. Technology 4:189-194.nBurdell, C. A., and J. H. Barnett. 1969. Pilot plant evaluation of shock-wave pressure treatments. Proceedings of the American Wood Preservers' Association. Pp. 174-189.nBystrov, G. P., V. M. Zhestyanikov, and E. A. Al'ftan. 1960. Ultrasonic vibrations for wood staining processes. Indust. Wood Process. February. Pp. 19-20.nComstock, G. L., and W. A. Côte. 1968. Factors affecting permeability and pit aspiration in coniferous sapwood. Wood Sci. Technol. 2:279-291.nKitazawa, G. 1949. Some influences of ultrasonic vibrations on wood. Report by Timber Engineering Company for the Office of Naval Research. B-33. 42 pp.nSiau, J. F. 1984. Transport processes in wood. Springer-Verlag, Berlin, Heidelberg, New York, Tokyo. 245 pp.nWalters, C. S. 1977. Effect of surfactant and ultrasonic energy on the treatment of wood with chromated copper arsenate. Holzforschung 31(4):112-115.n

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Published

2007-06-22

Issue

Number 3 / July 1988

Section

Research Contributions

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