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Glass fiber reinforced PET modified by few‐layer black phosphorus
Author(s) -
Xiao Yifan,
Li Jiaxuan,
Wu Jun,
Song Liang,
Han Yuxi,
Wang Zhongwei,
Yu Qing
Publication year - 2021
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.5362
Subject(s) - fire retardant , polyethylene terephthalate , char , materials science , thermogravimetric analysis , nuclear chemistry , fiber , phosphorus , glass fiber , composite material , chemical engineering , combustion , organic chemistry , chemistry , engineering , metallurgy
Glass fiber reinforced polyethylene terephthalate (PET/GF) with enhanced flame retardancy was prepared with few‐layer black phosphorus (BPs) for the first time. The performance of red phosphorus (RP) modified PET/GF was also investigated for comparison. Results show that PET/GF with 0.9 wt% BPs (PET/GF@BP‐0.9) can eliminate the ignition of cotton by dripping. The addition of 2.7 wt% of BPs can make the PET/GF sample pass UL 94 V‐0 classification, while a much higher of 6.3 wt% RP was needed to pass the same classification. Compared with neat PET/GF, the peak heat release rate (PHRR) and total heat release (THR) rate of PET/GF@BP‐2.7 decreases ca. 52.5% and 34.8%, respectively. The studies of char residues reveal that BPs could act as a catalyst for char formation and the formed char could roughen the surface of GF and thus restrain the “wick effect.” Thermogravimetric analysis/infrared spectrometry shows that the addition of BPs significantly inhibited the release of gas‐phase products. The attractive abilities of BPs as flame retardant provide a novel and effective way of PET/GF modification.