膦酸盐
阻燃剂
聚氨酯
磷化氢
材料科学
多元醇
乙二醇
傅里叶变换红外光谱
环氧乙烷
热塑性聚氨酯
高分子化学
化学工程
核化学
化学
有机化学
工程类
聚合物
弹性体
共聚物
作者
Chang‐chen Cai,Qian Sun,Kai Zhang,Xiaoyu Bai,Peng Liu,Aixiang Li,Zijian Lyu,Qiuhong Li
摘要
Summary Propylene oxide (PO) was used to block polycarboxyethyl phenyl ethylene phosphinate (PCEPEP) synthesized by 2‐carboxyethylphenylphosphinic acid (CEPPA) and ethylene glycol (EG) to obtain a reactive phosphonate polyol. The results of chemical titration analysis and Fourier transform infrared spectrum (FT‐IR) showed that the end‐capping effect was best when the molar ratio of PO to acidic functional groups in PCEPEP was 6:1. Moreover, the obtained phosphorus‐containing polyol was used as a reactive monomer to be introduced into thermoplastic polyurethane (TPU) to prepare flame retardant TPU. Cone calorimetry results demonstrated that TPU containing 20 wt% phosphorus‐containing polyol showed a reduction of 3.8%, 72.2%, and 39.3% in the peak heat release rate, total heat release and total smoke release, and an increment of 351.9% in mass retention. The addition of phosphonate polyol enhanced the char‐forming performance of TPU, which effectively prevented the transfer of combustible gas and heat, and displayed a good flame retardant effect.
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