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Official Journal of the Japan Wood Research Society

Journal of Wood Science Cover Image

Table 1 Properties of PF resins

From: Development of bark-based adhesives for plywood: utilization of flavonoid compounds from bark and wood. II

  PF resin A PF resin B
Solids content (%) 44.7 44.8
Viscosity (Pa·s) (23 °C) 0.24 0.33
pH1 13.5 11.3
Gelation time (min) (100 °C)1 31–44 24
Molecular weight 2
Number-average molecular weight (Mn) 2050 1237
Weight-average molecular weight (Mw) 12,317 2993
Polydispersity (Mw/Mn) 6.01 2.42
  1. 1Catalogue spec
  2. 2The molecular weight was determined by measuring the acetylated phenolic resin by gel permeation chromatography (GPC)