Improving the Properties of Particleboard by Treating the Particles with Phenolic Impregnating Resin<sup>1</sup>

Authors

  • J. G. Haygreen
  • R. O. Gertjejansen

Abstract

Laboratory produced phenolic-bonded particleboard of both splinter and flake-type particles was studied. The effect of adding a phenolic impregnating resin to particles was compared to that of increasing the bonding resin content to an equal level of total resin solids. The original strength and strength retention were found to be similar for boards with a combination of impregnating plus bonding resin as compared to boards with an equal total solids content of bonding-type resin. The dimensional stability of boards containing the combination of phenolic resins was found to be considerably better than those with bonding resin alone. The impregnating resin was found to be much more effective in reducing swelling and springback when applied to wet rather than dry particles.

References

Brown, F. L., D. L. Kenaga, and R. M. Gooch. 1966. Impregnation to control dimensional stability of particle and fiberboards. Forest Prod. J., 16(1): 45-53.nEndicott, L. E., and T. R. Frost. 1967. Correlation of accelerated and long term stability tests for wood-based composite products. Forest Prod. J., 17(10): 35-40.nHaygreen, J. G. 1969. Reduction of springback in particleboard by resin treatment of green particles. U.S. Patent Application No. 845 507.nHaygreen, J. G., and D. Daniels. 1969. Simultaneous drying and densification of sapwood. Wood and Fiber, 1(1): 38-53.nHeebink, B. G. 1967. A look at degradation in particleboard for exterior use. Forest Prod. J., 17(1): 59-66.nHeebink, B. G. 1967. A procedure for quick evaluation of dimensional stability of particleboard. Forest Prod. J., 17(9): 77-80.nHeebink, B. G., and F. V. Hefty. 1969. Treatments to reduce thickness swelling of phenolic bonded particleboard. Forest Prod. J., 19(11): 17-26.nJokerst, R. W. 1968. Long term durability of laboratory-made Douglas-fir flakeboard. U.S. Dep. Agr. Res. Note. FPL-0199.nLehmann, W. F. 1964. Retarding dimensional changes of particleboards. Oregon State Univ. Forest Res. Lab. Circular 20.nLehmann, W. F. 1968. Durability of exterior particleboard. 2nd Symposium on Particleboard, Washington State University, Pullman.nMaxwell, J. W., G. Kitazawa and T. Duncan. 1959. A search for better particleboard adhesives. Forest Prod. J., 9(10): 42A-46A.nSuchsland, O., and R. C. Enlow. 1968. Heat treatment of exterior particleboard. Forest Prod. J., 18(8): 24-28.nTalbott, J. W. 1959. Flapreg flakeboard. Forest Prod. J., 9(2): 103-106.n

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Published

2007-06-05

Issue

Number 2 / Summer 1971

Section

Research Contributions

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