Fig. 2From: Ionic liquids as formaldehyde-free wood adhesivesImages of three-ply plywoods, top view (a) and side view (b), prepared with [Py][Cl]-, [IM][Cl]-, and [EtPy][Cl]-based adhesive solutions (Py2, IM2, EtPy8, respectively, see Table 1 for their composition). Pressing conditions: 180 °C/2.9 MPa/60 minBack to article page