This study deals with the influence of electron beam irradiation (EBI) on the wettability of Norway spruce surface samples. To evaluate this possible effect in detail, the changes in chemistry and wood structure were analysed using the methods of IR spectroscopy and Scanning Electron Microscopy (SEM). The surface wettability was determined by the contact angle measurement method. The results of infrared spectra show decreased relative numbers of available hydrophilic groups (e.g. hydroxyl and carbonyl groups) in the wood surfaces due to the electron beam irradiation. This behaviour is consistent with the values from the surface wettability measurements. Structural differences of the wood surfaces after electron beam irradiation were not detectable. Based on these findings pre-treatment of wood surfaces for industrial usages can be a potential field of application of this technology.

这项研究处理了电子束辐照（EBI）对挪威云杉表面样品的润湿性的影响。为了详细评估这种可能的影响，使用红外光谱和扫描电子显微镜（SEM）的方法分析了化学和木材结构的变化。通过接触角测量方法确定表面润湿性。红外光谱的结果表明，由于电子束照射，木材表面可用亲水基团（例如羟基和羰基）的相对数量减少了。该行为与表面润湿性测量的值一致。电子束辐照后木材表面的结构差异无法检测。