In this study, four model urethane acrylates with different functionalities were synthesized and their structures were characterized using infrared spectroscopy, nuclear magnetic resonance spectroscopy, and gel permeation chromatography. Pure urethane acrylates were then irradiated with energy-equivalent electron-beam (EB) and ultraviolet (UV), and the acrylate structure and curing degree after irradiation were studied. The results of double bond conversion and gel content revealed that the curing degree of EB-cured samples was higher than that of UV-cured samples under equivalent energy. Furthermore, the energy supply mode was changed from one-time to multiple superimposition, which clarified that the in situ polymerization effect of EB irradiation could produce a high curing degree. Finally, pure urethane acrylates were mixed with commercial oligomer, and the glass transition temperature and pendulum hardness of the cured products were investigated. Moreover, the performance of cured films and coatings was affected by multiple factors, such as functionality, irradiation type and energy supply mode.

在这项研究中，合成了四种具有不同官能度的模型尿烷丙烯酸酯，并使用红外光谱，核磁共振光谱和凝胶渗透色谱对它们的结构进行了表征。然后用等价的电子束（EB）和紫外线（UV）辐射纯氨基甲酸酯丙烯酸酯，并研究了辐射后的丙烯酸酯结构和固化度。双键转化率和凝胶含量的结果表明，在相同能量下，EB固化样品的固化度高于UV固化样品。此外，能量供应模式从一次改变为多次叠加，这表明EB辐射的原位聚合效应可以产生较高的固化度。最后，将纯氨基甲酸酯丙烯酸酯与市售低聚物混合，并研究固化产物的玻璃化转变温度和摆锤硬度。而且，固化膜和涂层的性能受多种因素影响，例如功能性，辐照类型和能量供应方式。