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A Mo‐based metal‐organic framework toward improving flame retardancy and smoke suppression of epoxy resin
Author(s) -
Zhang Feng,
Li Xiutao,
Yang Liqiang,
Zhang Yanan,
Zhang Mengjie
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.5338
Subject(s) - fire retardant , materials science , epoxy , smoke , combustion , composite material , flammability , fire safety , waste management , organic chemistry , chemistry , engineering , management , economics
In this work, a Mo‐based metal‐organic framework (Mo‐MOF) was first used as flame retardant for epoxy resin (EP). It was found that Mo‐MOF particles showed an excellent dispersion state and good compatibility in the EP matrix. Burning test results showed that the flame retardancy and smoke suppression of EP were obviously improved due to the introduction of Mo‐MOF. Compared with pure EP, 6 wt% Mo‐MOF reduced the values of peak heat release rate (pHRR), peak smoke production rate (pSPR), total smoking production (TSP) and peak CO production rate (pCOP) by 44.7%, 21.8%, 25.1%, and 42.9%, respectively. Moreover, the limited oxygen index (LOI) value of the composites increased from 24.8% to 32.8% compared with the pure EP, and UL‐94 reached V2 rating with no dripping in the vertical burning test. The combustion products of EP composites were also detected and analyzed to obtain the possible flame retardant and smoke suppression mechanisms of Mo‐MOF.