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Two-stage method of applying resin to chips

, : Two-stage method of applying resin to chips. Izvestiya Vysshikh Uchebnykh Zavedenii, Lesnoi Zhurnal ( 4): 104-108

Series of experiments were made to determine the optimum schedule for a two-stage method of applying the resin to the chips in particleboard manufacture. It involves first treating the chips with lignosulfonates (LS) and then with urea-formaldehyde resin (UF). The best results were obtained when the chips treated with LS were held for 20-50 minutes at 20 degrees C before the treatment with the UF resin.


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