摘要： 【目的】为了制备兼具阻燃和抗菌性能的光固化涂层。【方法】以不同用量的 2-（二甲氨基）甲基丙烯酸乙酯（ DEM）改性植酸，并通过紫外光固化制备涂层。采用傅立叶变换红外光谱仪、核磁共振波谱仪与 X射线光电子能谱仪对改性植酸结构进行表征，且对涂层的光固化行为、热稳定性、阻燃性、阻燃机理及抗菌性进行研究。【结果】随着 DEM用量的增加，涂层中 C=C双键的转化率降低、硬度增加、柔韧性降低、热稳定性增加、极限氧指数下降、抗菌性无显著变化。所制备的涂层主要通过植酸促进成碳实现 UL94 V-0级阻燃，同时对大肠杆菌（ E. coli）与金黄色葡萄球菌（ S. aureus）的抗菌性均可达 100%。【结论】光固化植酸基涂层兼具极佳的阻燃和抗菌性能，为多功能生物基光固化防护涂层的开发提供了一种有效策略。

关键词: 光固化, 植酸, 抗菌, 阻燃

Abstract: ［Objective］To develop a multifunctional photocurable coating with integrated flame-retardant and antimicrobial properties.［Methods］Phytic acid was modified with 2-（dimethylamino） ethyl methacrylate（DEM） at varying dosage ratios and UV-cured into coatings. Material characterization employed FT-IR， 1H NMR，and XPS. The photopolymerization behavior，basic properties，thermal stability，flame retardancy，flame retardant mechanism，and antibacterial performance of the coatings were systematically investigated.［Results］ With the DEM dosage increased，the conversion rate of carbon carbon double bonds in the coating decreased，hardness increased，flexibility decreased，thermal stability increased，ultimate oxygen index decreased，and antibacterial performance was not significantly affected. The prepared coating mainly promoted carbon formation through phytic acid to achieve UL94V-0 level flame retardancy，while achieving 100% antibacterial activity against both E. coli and S. aureus.［Conclusion］Photocurable phytic acid-based coatings integrate outstanding flame-retardant and antimicrobial properties，offering an effective approach for the fabrication of multifunctional bio-based UV-curable protective coatings.

Key words: UV-cured, phytic acid, antimicrobial, flame-retardant

中图分类号: 

• TQ637