Inherently Flame-Retardant Flexible Polyurethane Foam with Low Content of Phosphorus-Containing Cross-Linking Agent
Inherently Flame-Retardant Flexible Polyurethane Foam with Low Content of Phosphorus-Containing Cross-Linking Agent
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低含量磷交联剂的固有阻燃软质聚氨酯泡沫
DOI：
10.1021/ie4036753
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发表时间：
2014-01-22
影响因子：
4.2
通讯作者：
Wang, Yu-Zhong
中科院分区：
文献类型：
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作者：
Chen, Ming-Jun;Chen, Chun-Rong;Wang, Yu-Zhong
合成了无卤含磷三醇磷酰三甲醇（PTMA），并用其作为交联剂和反应型阻燃剂制备了本质阻燃软质聚氨酯泡沫（FPUF）。在聚氨酯链中加入低含量（7.8 wt%）的 PTMA 可以提高 FPUF 的阻燃性，因为其具有良好的成炭性。通过 SEM、FTIR 光谱、电感耦合等离子体原子发射光谱 (ICP-AES)、能量色散 X 射线 (EDX) 光谱和热重分析 (TGA) 与 FTIR 光谱结合分析 PTMA 交联 FPUF 的残留炭和逸出气体。结果表明，PTMA交联的FPUF中60%以上的磷被分解为多磷酸或其衍生物并保留在焦渣中。这说明PTMA主要在阻燃FPUF的凝聚相中发挥作用。根据这些结果，PTMA-交叉-的可能的热降解机制...
A halogen-free phosphorus-containing triol named phosphoryltrimethanol (PTMA) was synthesized and used as a cross-linking agent and a reactive-type flame retardant to prepare inherently flame-retardant flexible polyurethane foam (FPUF). Incorporation of a low content (7.8 wt %) of PTMA into the polyurethane chains can increase the flame retardance of FPUF because of good char formation. The residual chars and evolved gases of PTMA-cross-linked FPUFs were analyzed by SEM, FTIR spectroscopy, inductively coupled plasma-atomic emission spectrometry (ICP-AES), energy-dispersive X-ray (EDX) spectroscopy, and thermogravimetric analysis (TGA) coupled with FTIR spectroscopy. The results indicated that more than 60% of the phosphorus in PTMA-cross-linked FPUF was decomposed into polyphosphoric acid or its derivatives and retained in the char residue. This shows that PTMA mainly played a role in the condensed phase of flame-retardant FPUF. Based on the results, a possible thermal degradation mechanism of PTMA-cross-...