环氧树脂
材料科学
固化(化学)
差示扫描量热法
氧化膦
热重分析
阻燃剂
热稳定性
傅里叶变换红外光谱
高分子化学
聚合物
核化学
复合材料
磷化氢
化学工程
有机化学
化学
热力学
物理
工程类
催化作用
作者
Rasool Kheyrabadi,Hossein Rahmani,Seyed Heydar Mahmoudi Najafi
标识
DOI:10.1177/0954008316688759
摘要
Flame-retardant halogen-free epoxy resin, containing phosphorus and nitrogen atoms in the main chain, was synthesized through the curing of tris(3-(bis(oxiran-2-ylmethyl)amino)phenyl)phosphine oxide (HGE, hexaglycidyl epoxy monomer), starting from tris(3-aminophenyl) phosphine oxide (TAPO) and epichlorohydrin. The molecular structure of HGE with molecular weight 660 was confirmed using Fourier transform infrared, nuclear magnetic resonance, and liquid chromatography–mass spectrometry techniques. Epoxy equivalent weight determined by titration method was 120. The thermal curing behavior of the HGE/TAPO was investigated by differential scanning calorimetry. An intense exotherm due to curing reaction was observed in the temperature range from 123°C to 215°C. The HGE cured with TAPO, 4,4′-diaminodiphenylsulfone (DDS), and 1,5-diaminonaphthalene (DAN) and the thermal behaviors were studied by thermogravimetric analysis. The flame retardancy properties of the HGE/TAPO, DDS, and DAN were evaluated by vertical burning test (UL-94 V). The high performance cured epoxy resins showed high thermal stability and UL-94 V-0 flame retardancy rating.
科研通智能强力驱动
Strongly Powered by AbleSci AI