Thermal stability, flame retardance, and mechanical properties of polyamide 66 modified by a nitrogen–phosphorous reacting flame retardant | Zendy

Lyu Wenyan | Zendy; Cui Yihua | Zendy; Zhang Xujie | Zendy; Yuan Jingyao | Zendy; Zhang Wei | Zendy

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Thermal stability, flame retardance, and mechanical properties of polyamide 66 modified by a nitrogen–phosphorous reacting flame retardant

Author(s) -

Lyu Wenyan,

Cui Yihua,

Zhang Xujie,

Yuan Jingyao,

Zhang Wei

Publication year - 2016

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.43538

Subject(s) - limiting oxygen index , fire retardant , polyamide , materials science , thermogravimetric analysis , thermal stability , flammability , prepolymer , cone calorimeter , melamine resin , composite material , polymer chemistry , organic chemistry , chemistry , combustion , polyurethane , char , coating

Flame‐retardant polyamide 66 (PA66) was prepared by the polymerization between PA66 prepolymer and N ‐benzoic acid (ethyl‐ N ‐benzoic acid formamide) phosphamide (NENP). Compared with the pure PA66, the flame‐retardant PA66 exhibited better thermal stability, as indicated by thermogravimetric analysis results. The limiting oxygen index was 28% and the UL‐94 test results of the flame‐retardant PA66 indicated a V‐0 rating when the content of the NENP prepolymer was 5 wt %. The flammability and flame‐retardant mechanism of PA66 were also studied with cone calorimetry and scanning electron microscopy/energy‐dispersive X‐ray spectroscopy, respectively. The mechanical properties results show that the flame‐retardant PA66 resin had favorable mechanical properties. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43538.

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