Synthesis and characterization of phosphorus-based flame retardant containing rigid polyurethane foam
Synthesis and characterization of phosphorus-based flame retardant containing rigid polyurethane foam
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DOI：
10.1007/s10973-021-10837-9
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发表时间：
2021-05-15
影响因子：
4.4
通讯作者：
Serhatli, I. Ersin
中科院分区：
文献类型：
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作者：
Caliskan, Esra;Canak, Tuba Cakir;Serhatli, I. Ersin
以双磷酰胺结构为基础，合成了一种新型阻燃剂双（3-羟基氨基苯基）苯基氧化膦（BHAPPO）。采用不同BHAPPO和聚磷酸铵（APP）含量制备硬质聚氨酯泡沫塑料（RPUF）配方，研究BHAPPO的阻燃性能以及BHAPPO和APP对RPUF的协同阻燃作用。FT-IR、1H-NMR和31 P-NMR光谱分析证实了BHAPPO的预期结构。通过极限氧指数（LOI）测试和热重分析（TGA）研究了RPUFs的阻燃性能和热降解行为。证实了新型BHAPPO对制备的RPUF样品的阻燃性能。BHAPPO和APP的组合在降低RPUFs的可燃性和增强成炭方面的协同效应也被证实，并依赖于它们的比例。通过压缩试验和扫描电镜分析，研究了BHAPPO对RPUFs力学性能和形态结构的影响。采用锥形量热仪研究了聚氨酯泡沫塑料的燃烧行为及添加阻燃剂的影响。对于阻燃PU泡沫，发现二氧化碳量较低。
A novel compound (bis(3-hydroxyaminophenyl) phenyl phosphine oxide) (BHAPPO) was synthesized as a flame retardant based on bisphosphoramide structure. Rigid polyurethane foam (RPUF) formulations were prepared with different BHAPPO and ammonium polyphosphate (APP) content to investigate both flame retardant property of BHAPPO and the possible synergistic effect of BHAPPO and APP against RPUFs. FT-IR, 1H-NMR and 31P-NMR spectroscopy analysis confirmed the expected structure of BHAPPO. Flame retardancy and thermal degradation behavior of RPUFs were determined by limiting oxygen index (LOI) test and thermogravimetric analysis (TGA). The flame retardant property of novel BHAPPO against the prepared RPUF samples was confirmed. The synergetic effect of BHAPPO and APP combination both on reducing the flammability and enhancing the char formation of RPUFs was also confirmed with a dependence on their ratio. The compatibility effect of BHAPPO on mechanical and morphological properties of RPUFs was also investigated by compression test and SEM analysis. Fire behaviors and the effect of using flame retardant additives in polyurethane foam were investigated using a cone calorimeter. Carbon dioxide amount was found lower for flame retardant PU foam.