The organic-inorganic phosphorus-based hybrid flame retardants are attractive owing to the high efficiency in promoting flame retardancy and suppressing the smoke and toxic gases, yet their preparation has been seldom reported. Herein, ammonium polyphosphate (APP) was decorated by organophosphorus triazole (D-ATA) with Fe (III) as the medium through the interfacial coordination strategy for the construction of the hybrid (APP@FeDT), which was expected to address the issues related to the combustibility, harmful smoke and toxic gases of epoxy resin (EP). APP@FeDT showed better compatibility in EP than APP owing to the enhanced roughness and organophosphorus-based triazolyl. Compared to pristine EP, EP with 6 wt% APP@FeDT achieved the UL-94 V-0 rating and the LOI of 29.6 %, and its PHRR, THR and TSP were reduced by 81.4 %, 64.1 % and 66.5 %, respectively. Generally, this work provides a feasible strategy for the preparation of phosphorus-based hybrid flame retardant and reveals its potential application in high fire safety polymers.

中文翻译：

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界面化学诱导的有机-无机磷基杂化高防火安全环氧树脂


有机-无机磷基杂化阻燃剂由于具有高效的阻燃效果、抑制烟雾和有毒气体而备受关注，但其制备方法却鲜有报道。本文以Fe(III)为介质，通过界面配位策略对聚磷酸铵(APP)进行有机磷三唑(D-ATA)修饰，构建杂化物(APP@FeDT)，有望解决相关问题。环氧树脂（EP）的可燃性、有害烟雾和有毒气体。由于粗糙度增强和有机磷基三唑基，APP@FeDT 在 EP 中表现出比 APP 更好的相容性。与原始EP相比，添加6 wt% APP@FeDT的EP达到了UL-94 V-0等级，LOI达到29.6%，其PHRR、THR和TSP分别降低了81.4%、64.1%和66.5%。总的来说，这项工作为磷基杂化阻燃剂的制备提供了可行的策略，并揭示了其在高防火安全聚合物中的潜在应用。