In February 2026, research results on the flame retardant mechanism of modified epoxy resin were released, systematically analyzing the core logic of flame retardancy for this material and providing important theoretical support for flame retardant modification research and development in the industry. Epoxy resin is widely used in aerospace, electronics, construction and other fields due to its excellent properties, but its flammable characteristics limit its application, making flame retardant modification a research focus. The study points out that the flame retardancy of modified epoxy resin mainly relies on four core mechanisms: gas phase, condensed phase, synergy and heat exchange interruption, and some systems also have auxiliary flame retardant approaches such as smoke suppression and cross-linking enhancement. Gas phase flame retardancy blocks the combustion chain reaction by capturing free radicals and diluting inert gases, while condensed phase flame retardancy forms a protective layer through carbon formation and heat absorption. The compound synergistic flame retardancy such as halogen-antimony and phosphorus-nitrogen can increase the flame retardant efficiency several times. In practical applications, most flame retardant systems combine two or more mechanisms to maximize the flame retardant effect. For more information, please click: https://www.tiktok.com/@mia_iota/video/7597717976720149782