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首页> 外文会议>Fire and Polymers Conference >Synergistic Effects of Ni~(2+)-Fe~(3+) Layered Double Hydroxide on Intumescent Flame-Retarded Polypropylene Composites Containing Melamine Phosphate and Pentaerythritol Phosphate
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Synergistic Effects of Ni~(2+)-Fe~(3+) Layered Double Hydroxide on Intumescent Flame-Retarded Polypropylene Composites Containing Melamine Phosphate and Pentaerythritol Phosphate

机译：Ni〜（2 +） - Fe〜（3+）层双氢氧化物对含三聚氰胺磷酸三聚氰胺和季戊四醇磷酸盐的膨胀型膨胀聚丙烯复合材料的协同作用

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The effects of Ni~(2+)-Fe~(3+) layered double hydroxide (LDH) as a synergistic agent on the flame retardancy of intumescent flame retardant (IFR) polypropylene composites were studied; the IFR system mainly consisted of melamine phosphate (MP) and pentaerythritol phosphate (PEPA). The flame retardancy was studied by the limiting oxygen index (LOI), UL-94 test, cone calorimetry (CONE) and microscale combustion calorimetry (MCC). Thermal decomposition analysis was investigated via thermogravimetric analysis (TGA), real time Fourier transform infrared spectroscopy (RTFTIR) and thermogravimetric analysis/infrared spectroscopy (TG-IR). The crystallization behavior was tested by the differential scanning calorimetry (DSC). Char residues were analyzed by scanning electron microscopy (SEM) and Raman diffusion spectroscopy. Results demonstrated that a little addition (0.2%) of Ni~(2+)-Fe~(3+) LDH could improve the flame retardancy of PP/MP/PEPA composites, and affect the P-O-C degradation of MP/PEPA in PP. The crystallinity of the composites is lowered by Ni~(2+)-Fe~(3+) LDH. It also has an influence on the structure of char residual, which may benefit the flame retardancy and thermal stability of materials.
机译：研究了Ni〜（2 +） - Fe〜（3+）层双氢氧化物（LDH）作为协同剂对膨胀膨胀性阻燃剂（IFR）聚丙烯复合材料的缓冲剂的影响; IFR系统主要由三聚氰胺磷酸盐（MP）和季戊四醇磷酸（Pepa）组成。通过限制氧指数（LOI），UL-94试验，锥形量热法（锥形）和微尺寸燃烧量热法（MCC）研究了阻燃性。通过热重分析（TGA）来研究热分解分析，实时傅里叶变换红外光谱（RTFTIR）和热重分析/红外光谱（TG-IR）。通过差示扫描量热法（DSC）测试结晶行为。通过扫描电子显微镜（SEM）和拉曼扩散光谱分析Char残留物。结果表明，Ni〜（2 +） - Fe〜（3+）LDH的少量添加（0.2％）可以改善PP / MP / Pepa复合材料的阻燃性，并影响PP中MP /脂肪物的P-O-C降解。通过Ni〜（2 +） - Fe〜（3+）LDH降低复合材料的结晶度。它还对Char残差的结构产生了影响，这可能有利于材料的阻燃性和热稳定性。

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