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Improved water resistance of UF adhesives for plywood by small pMDI additions

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Abstract

Addition of small amounts of isocyanate (pMDI), between 10% and 15% by weight, to UF resins for plywood considerably improve the UF glue line water resistance. Analysis of the plywood by X-ray microdensitometry indicate that on both sides of the glue lines there is a local density increase which reflects either some adhesive diffusion in the wood layers immediately in contact with the glue line, or some extent of wood densification as a result of the gluing process, or both.

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References

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Authors and Affiliations

  1. Dept. of Wood Science and Technology, University of Zabol, Zabol, Iran

    Hamid Reza Mansouri, Antonio Pizzi & Jean-Michel Leban

Authors
  1. Hamid Reza Mansouri
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  2. Antonio Pizzi
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  3. Jean-Michel Leban
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Correspondence to Antonio Pizzi.

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Mansouri, H., Pizzi, A. & Leban, JM. Improved water resistance of UF adhesives for plywood by small pMDI additions. Holz Roh Werkst 64, 218–220 (2006). https://doi.org/10.1007/s00107-005-0046-z

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  • DOI: https://doi.org/10.1007/s00107-005-0046-z

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