Dimensional Stabilization of Wood by Vapor Phase Chemical Treatments
Abstract
White pine and Engelmann spruce cross sections (approx. 1 3/4 X 1 3/4 X 1/8 inches) were treated under various conditions of time, temperature, and moisture content by a vapor phase technique incorporating a number of different reactants. Two of the reactants considered, acetic anhydride and butyl isocyanate, reacted readily with the cell wall material of the wood samples and improved the dimensional stability of the wood by as much as 75%. Sticks 5 X 3/8 X 3/8 inches, with improved dimensional stabilities after reaction of 67%, gave losses in toughness and abrasion resistance of less than 25%. Generally less successful than the butyl isocyanate treatments were those with allyl, t-butyl, ethyl, and phenyl isocyanate.References
Clermont, L. P., and F. Bender. 1957. The effect of swelling agents and catalysts on acetylation of wood. Forest Prod. J., 7(5): 167-170.nGoldstein, I. S., E. B. Jeroski, A. E. Lund, J. F. Nielson, and J. W. Weaver. 1961. Acetylation of wood in lumber thickness. Forest Prod. J., 11(8): 363-370.nLoos, W. E. 1966. Modification of wood and paper properties by B10 (n a) Li7 initiated graft polymerization. Ph.D. Thesis, Department of Wood Science and Technology, North Carolina State University, Raleigh, N. C. University Microfilms, Ann Arbor, Michigan.nStamm, A. J. 1959. Effect of polyethylene glycol on the dimensional stability of wood. Forest Prod. J., 9(10): 375-381.nStamm, A. J. 1964. Wood and Cellulose Science, Chapters 19 and 20. Ronald Press, New York.nTarkow, H., A. J. Stamm, and E. C. O. Erickson. Revised 1955. Acetylated wood. U.S. Forest Products Laboratory Report No. 1593, Madison, Wis.n
Downloads
Published
Issue
Section
License
The copyright of an article published in Wood and Fiber Science is transferred to the Society of Wood Science and Technology (for U. S. Government employees: to the extent transferable), effective if and when the article is accepted for publication. This transfer grants the Society of Wood Science and Technology permission to republish all or any part of the article in any form, e.g., reprints for sale, microfiche, proceedings, etc. However, the authors reserve the following as set forth in the Copyright Law:
1. All proprietary rights other than copyright, such as patent rights.
2. The right to grant or refuse permission to third parties to republish all or part of the article or translations thereof. In the case of whole articles, such third parties must obtain Society of Wood Science and Technology written permission as well. However, the Society may grant rights with respect to Journal issues as a whole.
3. The right to use all or part of this article in future works of their own, such as lectures, press releases, reviews, text books, or reprint books.
