Flame retardancy and corrosion resistance required by high-performance epoxy resins (EP), especially in the field of composites and coating, are difficult to achieve simultaneously. In this study, a facile method was put forward to impart both flame retardant and anti-corrosive properties to epoxy resins, via chemically introducing bifunctional phosphorus-containing triazole derivatives (D-ATA). In the resultant epoxy thermosets, the phosphorylated triazole structure directly contributed to flame retardancy, while the triazole structure can effectively suppress the electrochemical corrosion. With only 5 wt% loading of D–ATA, the epoxy thermoset showed excellent flame retardancy with a high limiting oxygen index of 33.2%, V-0 rating in UL-94 tests and significant suppression of heat and smoke release in cone calorimetry tests. Meanwhile, the electrochemical corrosion tests confirmed that the corrosion protection efficiency of EP/5% D-ATA increased by 95.3% in comparison to neat EP. Due to hydrogen bonding and π-π interactions caused by the introduction of D-ATA, the versatile epoxy thermoset also had enhanced mechanical properties with the improved tensile and flexural strength. Moreover, the anti-corrosion and flame-retardant mechanisms were also discussed in detail. This work provides a facial strategy for preparing versatile high-performance epoxy thermoset with fire safety and corrosion resistance for various applications.

高性能环氧树脂（EP）所需的阻燃性和耐腐蚀性，尤其是在复合材料和涂料领域，很难同时实现。在这项研究中，提出了一种通过化学引入双官能含磷三唑衍生物（D-ATA）来赋予环氧树脂阻燃和防腐性能的简便方法。在所得的环氧热固性材料中，磷酸化的三唑结构直接有助于阻燃性，而三唑结构可有效抑制电化学腐蚀。仅用5 wt％的D-ATA负载，环氧热固性树脂就显示出优异的阻燃性，极限氧指数为33.2％，UL-94测试中的V-0级，并且在锥形量热测试中显着抑制了热量和烟气的释放。与此同时，电化学腐蚀试验证实，与纯净EP相比，EP / 5％D-ATA的腐蚀防护效率提高了95.3％。由于引入D-ATA导致氢键键合和π-π相互作用，通用的环氧树脂热固性塑料还具有增强的机械性能，并具有改进的拉伸和弯曲强度。此外，还详细讨论了防腐和阻燃机理。这项工作为制备具有多种用途的具有防火安全性和耐腐蚀性的多功能高性能环氧热固性涂料提供了一种面部策略。通用的环氧热固性塑料还具有增强的机械性能，并具有改进的拉伸和弯曲强度。此外，还详细讨论了防腐和阻燃机理。这项工作为制备具有多种用途的具有防火安全性和耐腐蚀性的多功能高性能环氧热固性涂料提供了一种面部策略。通用的环氧热固性塑料还具有增强的机械性能，并具有改进的拉伸和弯曲强度。此外，还详细讨论了防腐和阻燃机理。这项工作为制备具有多种用途的具有防火安全性和耐腐蚀性的多功能高性能环氧热固性涂料提供了一种面部策略。