Flame retarded and smoke suppressed vinyl ester resin (VER) were prepared through ammonium polyphosphate (APP) coupled with different smoke suppressants. The flame retardancy of these composites was tested by the limiting oxygen index and UL‐94 tests. The typical combustion parameters including heat release rate (HRR), peak of HRR (p‐HRR), total heat release, smoke production rate, and total smoke production were detected using a cone calorimeter. The smoke suppressants CaCO₃, ZnMoO₄, Cu₂O, and Fe₂O₃ show different effect on flame retardancy and smoke suppression of VER composites when they are coupled with APP, the synergistic action of APP and CaCO₃ is more effective on decreasing the HRR and smoke release rate than several other smoke suppressants. This is attributed to the fact that CaCO₃ could promote the formation of a dense carbon layer with high thermal stability and anti‐oxidation property, which could act as an effective physical barrier. The flame retardant performances and mechanisms of APP and CaCO₃ were evaluated and analyzed at length by thermogravimetric coupled with a Fourier transform infrared spectrometer (FTIR), scanning electron microscopy, FTIR, and X‐ray diffraction. POLYM. ENG. SCI., 60: 314–322, 2019. © 2019 Society of Plastics Engineers

中文翻译：

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应用APP的不同抑烟剂对乙烯基酯树脂的阻燃性和抑烟性的影响

通过多磷酸铵（APP）与不同的抑烟剂结合，制备了阻燃，抑烟的乙烯基酯树脂（VER）。这些复合材料的阻燃性通过极限氧指数和UL-94测试进行了测试。使用锥形量热计检测典型的燃烧参数，包括放热率（HRR），HRR峰值（p-HRR），总放热，烟雾产生率和总烟雾产生。抑烟剂CaCO ₃，ZnMoO ₄，Cu ₂ O和Fe ₂ O ₃与APP结合使用对VER复合材料的阻燃性和抑烟性有不同的影响，APP与CaCO ₃的协同作用在降低HRR和烟雾释放率方面比其他几种烟雾抑制剂更有效。这归因于以下事实：CaCO ₃可以促进具有高热稳定性和抗氧化性能的致密碳层的形成，这可以充当有效的物理屏障。通过热重分析，傅立叶变换红外光谱仪（FTIR），扫描电子显微镜，FTIR和X射线衍射对APP和CaCO _3的阻燃性能及机理进行了详细评估和分析。POLYM。ENG。SCI。，60：314–322，2019.©2019塑料工程师协会