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Flexible transparent flame‐retardant membrane based on a novel UV‐curable phosphorus‐containing acrylate
Author(s) -
Wang Xiaomeng,
Liu Xueqing,
Peng Sha,
Peng Panrui,
Zou Liyong,
Chen Jia,
Liu Jiyan
Publication year - 2017
Publication title -
fire and materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.482
H-Index - 58
eISSN - 1099-1018
pISSN - 0308-0501
DOI - 10.1002/fam.2461
Subject(s) - limiting oxygen index , acrylate , fire retardant , materials science , fourier transform infrared spectroscopy , char , polyethylene glycol , monomer , polymerization , polymer chemistry , cone calorimeter , membrane , chemical engineering , transmittance , nuclear chemistry , combustion , composite material , chemistry , organic chemistry , polymer , biochemistry , optoelectronics , engineering
Summary A novel phosphorus‐containing acrylate monomer (AOPA) was synthesized starting from 2‐methy‐2,5‐dioxo‐1,2‐oxaphospholane and hydroxyethyl acrylate. The structure of AOPA was characterized with FTIR and 1 H NMR. AOPA shows good compatibility with polyethylene glycol diacrylate (PEGDA) and can polymerize with PEGDA under UV light irradiation at different mass ratios to form membranes with high transparency (above 88.9% of light transmittance in the range of 400‐800 nm) and flexibility. Incorporating 20 wt% of AOPA in PEGDA reduced the total heat release and peak rate by 50.3% and 38.4%, respectively, as measured by micro combustion calorimeter. The membrane containing 40 wt% of AOPA with 0.4 mm thickness can pass the UL94 V0 rating, and limiting oxygen index reaches 33.4%. TG‐FTIR and SEM‐EDX analysis show that the presence of AOPA depresses the thermal degradation and promotes the char formation.