点击次数：
所属单位：材料科学与技术学院
发表刊物：FIRE AND MATERIALS
关键字：flame retardant thermal properties PA66 resin phosphorous nitrogen
摘要：In this study, a halogen-free phosphorous-nitrogen synergistic flame retardant, poly-N-aniline-phenyl phosphamide (PDPPD), was synthesized. Fourier transform infrared spectroscopy, nuclear magnetic resonance spectroscopy, and elemental analysis data confirmed the structure of PDPPD. The essential FR PA66 was polymerized with PA66 pre-polymer and PDPPD pre-polymer, prepared from PDPPD and adipic acid. The limit oxygen index and UL-94 test results of FR PA66 reached 28% and V-0, respectively, when the contents of PDPPD pre-polymer were 4.5 wt%. The thermo-gravimetric and differential scanning calorimetry results demonstrated that the initial decomposition temperature of FR PA66 was 43 degrees C lower than that of pristine PA66 from 385 to 342 degrees C; however, the peak decomposition temperature was 36 degrees C higher than that of pure PA66 from 437 to 473 degrees C, when the contents of PDPPD pre-polymer reached 4.5 wt%. Flame retardant mechanism was studied by cone calorimeter testing and SEM-EDX, confirming that the heat release rate (HRR), total heat release (THR), and total smoke product (TSP) decreased slightly, and PDPPD followed the gas phase flame retardant mechanism. Copyright (C) 2016 John Wiley & Sons, Ltd.
ISSN号：0308-0501
是否译文：否
发表时间：2017-06-01
合写作者：吕文晏,Zhang, Xujie,Yuan, JingYao,Zhang, Wei
通讯作者：崔益华