The process of adhesive bond formation consists of flow, transfer, penetration, wetting, and solidification. The flow involves the spreading of the liquid adhesive along the external surface. The assembly of the wood elements leads to transfer of the liquid adhesive to the adjacent wood surface. Penetration occurs as a result of capillary forces within the cell lumens and bulk flow due to applied pressure. Wetting follows or accompanies penetration. Solidification of the adhesive signifies chemical reaction of the adhesive into a rigid polymer with infinite molecular weight.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 1756809The use of liquefied wood as a formaldehyde scavenger for particleboards and plywood, when added to the urea- and melamine-urea formaldehyde adhesive, was studied. The share of added liquefied wood into adhesive varied between 10 and 100 % for particleboard and 15 and 30 % for plywood. For the determination of formaldehyde emission gas analysis and Perforator method were used. It was determined that liquefied wood could be used as a formaldehyde scavenger if addition of liquefied wood was kept under 30 %.
F.01 Acquisition of new practical knowledge, information and skills
COBISS.SI-ID: 1756297