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Official Journal of the Japan Wood Research Society

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Fig. 3 | Journal of Wood Science

Fig. 3

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

Fig. 3

The ratios of the PF resin (solids), fibrillated bark and water in fibrillated bark adhesives. “PF resin” and “P” indicate phenol–formaldehyde resin and “RP Bark” and “B” indicate the fibrillated bark. “CF-B” means “Commercial formulation B” and refers to the formulation of a commercial adhesive for plywood using PF resin B. It consists of PF resin, inorganic components such as calcium carbonate, sodium bicarbonate, sodium hydroxide and water

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