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Journal of Wood Science

Official Journal of the Japan Wood Research Society

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)
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