Surface Activation Treatment of Wood and Its Effect on the Gel Time of Phenol-Formaldehyde Resin

Authors

  • Douglas J. Gardner
  • Thomas J. Elder

Keywords:

Gel time, phenol-formaldehyde resin, surface activation, southern pine, red maple, red oak, sweetgum

Abstract

Surface activation treatment of wood using hydrogen peroxide, nitric acid, and sodium hydroxide was examined to assess its effect on the gel time of phenol-formaldehyde resin. Four wood species comprising both hardwoods and softwoods, two treatment levels, and two treatment conditions (activation and activation followed by drying) were examined in the study. The effect of surface activation on the gel time of phenol-formaldehyde resin varies for a particular surface activator according to treatment level and treatment condition. Surface activated treated wood decreases the gel time of phenol-formaldehyde resin with hydrogen peroxide treatment having the greatest effect followed by nitric acid and sodium hydroxide treatments.

References

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Published

2007-06-22

Issue

Number 3 / July 1988

Section

Research Contributions

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