A UV-curable inorganic/organic hybrid coating was prepared from a methacrylated urethane oligomer, a reactive diluent, tetraethyl orthosilicate (TEOS) oligomers, and a free radical photoinitiator. The reactive diluent was synthesized using IPDI, HEMA, and aminopropyltetraethoxysilane (APTES), resulting in both inorganic and organic reactive groups. The photocuring kinetics was investigated using photo-DSC and real-time FTIR spectroscopy. The effect of the reactive diluent and TEOS oligomers concentration was investigated using impact resistance, pencil hardness, and adhesion. Two glass transition temperatures were observed, indicating a substantial interfacial phase generated between the inorganic and organic domains. The reactive diluent-to-reactive oligomer ratio had a larger effect on the mechanical behavior of the system than the TEOS concentration did. Adhesion improves with increasing TEOS oligomer concentration or reactive diluent concentration until maxima, after which increasing concentration has an adverse effect on adhesion.

由甲基丙烯酸化氨基甲酸酯低聚物、反应性稀释剂、原硅酸四乙酯 (TEOS) 低聚物和自由基光引发剂制备了一种可 UV 固化的无机/有机混合涂层。使用 IPDI、HEMA 和氨基丙基四乙氧基硅烷 (APTES) 合成反应性稀释剂，产生无机和有机反应性基团。使用光 DSC 和实时 FTIR 光谱研究光固化动力学。使用抗冲击性、铅笔硬度和附着力研究了活性稀释剂和 TEOS 低聚物浓度的影响。观察到两个玻璃化转变温度，表明在无机和有机域之间产生了大量的界面相。与 TEOS 浓度相比，反应性稀释剂与反应性低聚物的比率对系统机械行为的影响更大。粘附力随着 TEOS 低聚物浓度或反应性稀释剂浓度的增加而提高，直至达到最大值，之后增加浓度对粘附力有不利影响。