Experiments on finger-jointing acetylated beech (Fagus sylvatica L.) laminated veneer lumber (LVL) have been made. The specimens were examined on its wet tensile shear strength (TSS) using three adhesives, including phenol resorcinol formaldehyde (PRF), one-component polyurethane (PUR) (without primer), and melamine urea formaldehyde (MUF). Contact angles (CA) of uncured and drop-applied MUF, PRF, and PUR adhesives on freshly cut finger-joints were evaluated. Surface roughness was measured using a laser-scanning-microscope (LSM). Results showed that PRF bonded acetylated specimens had highest wet TSS, followed by specimens with PUR bonding. MUF performed poorly, which was most likely caused by its inadequate water resistance and changes in chemical reactions due to remaining acetic acid. Acetylated finger-joints had a topography similar to untreated joints. Moreover, CA were just barely lower for MUF and PRF on acetylated wood than on untreated references.

指接乙酰化山毛榉（Fagus sylvatica）实验L.) 已制成单板层积材 (LVL)。使用三种粘合剂检查样本的湿拉伸剪切强度（TSS），包括苯酚间苯二酚甲醛（PRF）、单组分聚氨酯（PUR）（无底漆）和三聚氰胺脲甲醛（MUF）。对未固化和滴涂的 MUF、PRF 和 PUR 粘合剂在新切割的指接处的接触角 (CA) 进行了评估。使用激光扫描显微镜（LSM）测量表面粗糙度。结果表明，PRF 粘合的乙酰化样品的湿 TSS 最高，其次是 PUR 粘合的样品。MUF表现不佳，很可能是由于其耐水性不足以及残留的乙酸导致化学反应发生变化所致。乙酰化的指关节具有与未处理的关节相似的形貌。而且，