Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 50, Issue 4, Pages 1881-1892Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ie102196k
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Funding
- Program for Specialized Research Fund for the Doctoral Program of Higher Education [200803580008]
- NSFC
- CAAC [61079015]
- USTC
- Science and Technology of SuZhou [SG-0841]
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A novel phosphorus- and nitrogen-containing compound (POPHA) has been synthesized by allowing phosphorus oxychloride to react with piperazine and 2-hydroxyethyl acrylate (HEA). Its structure was characterized by FTIR, H-1 NMR, and P-31 NMR. A series of UV-curable flame-retardant resins were obtained by blending POPHA with EA M different ratios. The flame-retardant properties were characterized by the limiting oxygen index (LOI) and microscale combustion calorimeter (MCC). The results showed that the incorporation of POPHA into FA can improve the flame retardancy of EA dramatically. The thermal properties of the resins were investigated by thermogravimetric analysis (TGA) in air atmosphere. Moreover, the thermal degradation mechanisms of the EA/POPHA were investigated by real-time Fourier transform infrared spectra (RTIR), thermogravimetric analysis/infrared spectrometry (TG-IR), and direct pyrolysis/mass (DP-MS). The morphologies of the formed chars were observed by scanning electron microscopy (SEM) demonstrating the most effective amount of POPHA is 20 wt %.
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