两种磷-氮有机次膦酸盐阻燃剂的性能比较  

Comparison of Two Nitrogen-containing Phosphinates Salts as a Flame Retardant

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作  者:吴桐[1,2] 彭莎 周敏 刘继延[1,2] 刘学清[1,2] Wu Tong Peng Sha Zhou Min Liu Jiyan Liu Xueqing(Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Jianghan University, Wuhan 430056, Chin)

机构地区:[1]光电材料与器件教育部重点实验室 [2]江汉大学化学与环境工程学院,湖北武汉430056

出  处:《广东化工》2017年第20期15-17,共3页Guangdong Chemical Industry

基  金:2016国家重点研发项目[2016YFB0401500]

摘  要:有机次膦酸盐阻燃剂是近年来发展较快的一类新型环保阻燃剂。比较了两种单分子膨胀型阻燃剂β-(N-苯基甲酰胺)乙基甲基次膦酸铝(Al(CEMP))和β-(N-对硝基苯基甲酰胺)乙基甲基次膦酸铝(Al(NCEMP))的结构、膨胀型能、热稳定性。将两种阻燃剂加入到PBT中,进一步对比了两种阻燃剂的阻燃效果。结果表明Al(CEMP)显示出更高的膨胀性,而后者Al(NCEMP)热稳定性能更高,分解速度和残炭率较Al(CEMP)高。两种阻燃剂在PBT中,均显示出较好的阻燃性能。当添加量相同时,PBT/Al(CEMP)比PBT/Al(NCEMP)有更高的氧指数和更好的力学性能,燃烧后炭层更加稳定密实。Metal salts of phosphinate belong to a new class of phosphinate-aluminum β-(N-phenylcarboxamide) ethylmethylphosphinate environmental friendly flame retardant, In this study, two aluminum salts of (AI(CEMP), and β-(N-paranitrophenylcarboxamide) ethylmethyl phosphinate (AI(NCEMP) were compared with respect to their thermal property, structure and flame retardancy in polybutylene terephthalate (PBT) by tburier transform infrared spectroscopy (FTIR), X-ray-diffraction spectroscopy (XRD) and thermogravimetric analyses(TGA). Results showed that AI (CEMP) presents better swollen properties while the AI(NCEMP) shows better thermal stability and higher char formation. Both compounds have a good flame-retardant in PBT. 18 wt% of AI(CEMP) or AI(NCEMP) can make PBT pass the vertical combustion test of UL 94 V0 rating, but PBT/AI(CEMP) shows higher limited oxidation index value than PBT/At(NCEMP) at the same filler loading.

关 键 词:N/P协同 阻燃剂 有机次膦酸盐 性能比较 

分 类 号:TQ314.248[化学工程—高聚物工业]

 

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