异丁基次磷酸铝的热降解和裂解行为分析Thermal Degradation and Pyrolysis Behavior of Aluminum Mono-isobutylphosphinate
钟宏波;向宇姝;金松;龙丽娟;
摘要(Abstract):
通过热重分析(TGA)和红外光谱(FTIR)对一种新型磷系阻燃剂异丁基次磷酸铝(A-MBPa)的热降解行为进行了详细研究,并用气相色谱-质谱法(GC-MS)、FTIR和能谱分析(EDS)等方法对A-MBPa的热裂解产物进行了分析。TGA结果表明,在氮气气氛下,A-MBPa的初始分解温度为369.31℃,残炭率为45.54%。FTIR和GC-MS结果表明,在热分解前期,A-MBPa会释放气相物质,而在后期降解过程中会形成更多的炭层,起到隔热、隔氧的作用。因此,A-MBPa的这种降解行为有利于提高聚合物的阻燃性能。
关键词(KeyWords): 异丁基次膦酸铝;热降解;裂解
基金项目(Foundation): 贵州省科学技术基金(黔科合基础[2018]1088);; 黔科合人才团队([2015]4006号)
作者(Authors): 钟宏波;向宇姝;金松;龙丽娟;
DOI: 10.15925/j.cnki.issn1005-3360.2018.10.019
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