Abstract：
To mitigate environmental and health risks associated with the use of halogenated flame retardants, effective halogen-free solutions have been extensively explored. In this study, melamine/boric acid/phosphoric acid (MBP)‑sodium alginate (SA) sponge was synthesized by treating MBP ternary supramolecules with microwave irradiation via one-pot, facile, and speedy synthesis, obtaining an MBP-SA sponge, a polysaccharide biopolymer. Crosslinking of SA with Ca2+ ion formed an intact network, and this was confirmed using scanning electron microscopy (SEM). Thereafter, the flame retardancy of the as-synthesized SA/MBP sponge was investigated by exposing it to a spirit lamp and a Bunsen burner; the sponge remained intact for up to 540 s and 370 s, respectively, demonstrating the enhanced flame retardancy of MBP supramolecules in the SA/MBP sponge. The limiting oxygen index of the SA/MBP sponge was up to 62 %, demonstrating the self-extinguishing and thermal insulation properties of the as-synthesized sponge. The findings of this study provide insights for developing a new strategy to use SA/MBP sponges for fire protection.
摘要：
为了减轻与使用卤化阻燃剂相关的环境和健康风险，有效的无卤素解决方案已被广泛探索。在这项研究中,采用微波一锅法处理三聚氰胺/硼酸/磷酸(MBP)-海藻酸钠(SA)三元超分子,轻而易举，和快速合成，获得MBP-SA海绵，多糖生物聚合物。SA与Ca2+离子交联形成完整的网络,并且使用扫描电子显微镜(SEM)证实了这一点。此后,通过将合成的SA/MBP海绵暴露于烈酒灯和本生灯来研究其阻燃性；海绵保持完整长达540秒和370秒，分别,证明了SA/MBP海绵中MBP超分子的阻燃性增强。SA/MBP海绵的极限氧指数可达62%，展示了合成海绵的自熄性和隔热性能。这项研究的结果为制定使用SA/MBP海绵进行防火的新策略提供了见解。
