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Official Journal of the Japan Wood Research Society

Journal of Wood Science Cover Image

Table 1 Viscosities of different resin-microsphere formulations measured with a cone/plate rheometer at a constant shear rate of 10 s−1, at 20 and 40 °C, immediately after hardener addition, as well as 1 and 2 h afterwards, to determine pot life

From: Urea-formaldehyde microspheres as a potential additive to wood adhesive

Ratio of microspheres:resin Viscosity [mPa·s]
0 h 1 h 2 h
20 °C 40 °C
0.0:1 312 348 1.02 × 103 6.81 × 104
0.1:1 245 284 665 2.91 × 104
0.5:1 191 232 331 1.34 × 103
1.0:1 298 375 397 1.07 × 103