Here, an efficient phosphorodiamidate (PPAE) reactive diluent functionalized with phosphonate ester was synthesized as a cross-linker with ultraviolet-curable epoxy acrylate for use in coating applications. The functionality of the phosphorodiamidate and structural properties of the reactive diluent were evaluated by gas chromatography–mass spectrometry (GC-MS), proton nuclear magnetic resonance (¹H-NMR), phosphorus nuclear magnetic resonance (³¹P-NMR), and infrared (IR) spectra. In addition, an ultraviolet-cured reactive diluent (UV-RD) was investigated for its thermal, mechanical, and antimicrobial properties. Underwriters Laboratories UL-94 standard vertical burning test, limiting oxygen index (LOI) values, X-ray diffraction (XRD) analysis, char yield in thermogravimetric analysis (TGA), and antimicrobial study indicated the efficacy of the synthesized reactive diluent. The incorporation of PPAE into epoxy acrylate promoted the degradation of epoxy acrylate oligomer and enhanced char formation, as suggested by TGA. The thermal and mechanical properties of the materials were enhanced by increasing the concentration of the synthesized UV-RD, which showed efficient flame-retardant properties. Furthermore, the use of this novel material for wood-coating application shows improved performance in coating results including gel content, water absorption, adhesion, solvent scrub resistance, gloss, and pencil hardness. The improved efficiency of PPAE is important for increasing the durability of wood materials necessary for the construction of energy-efficient buildings.

在这里，合成了一种用膦酸酯官能化的高效磷酰二胺 (PPAE) 反应性稀释剂，作为与紫外线固化环氧丙烯酸酯的交联剂，用于涂料应用。通过气相色谱-质谱（GC-MS）、质子核磁共振（¹ H-NMR）、磷核磁共振（³¹P-NMR) 和红外 (IR) 光谱。此外，还研究了紫外线固化反应性稀释剂 (UV-RD) 的热、机械和抗菌性能。美国保险商实验室 UL-94 标准垂直燃烧测试、极限氧指数 (LOI) 值、X 射线衍射 (XRD) 分析、热重分析 (TGA) 中的炭产率和抗菌研究表明合成的活性稀释剂的功效。正如 TGA 所表明的那样，将 PPAE 掺入环氧丙烯酸酯促进了环氧丙烯酸酯低聚物的降解并增强了炭的形成。通过增加合成的 UV-RD 的浓度来增强材料的热性能和机械性能，显示出有效的阻燃性能。此外，将这种新型材料用于木器涂料应用显示出在涂料结果方面的改进性能，包括凝胶含量、吸水率、附着力、耐溶剂擦洗性、光泽度和铅笔硬度。PPAE 的效率提高对于提高建造节能建筑所需的木质材料的耐用性非常重要。