A facile method for synthesis of novel phenyl phosphates flame retardants and their application in epoxy resin

编号 020036204

推送时间 20220926

研究领域 林产化工 

年份 2022 

类型 期刊 

语种 英语

标题 A facile method for synthesis of novel phenyl phosphates flame retardants and their application in epoxy resin

来源期刊 JOURNAL OF APPLIED POLYMER SCIENCE

期 第362期

发表时间 20220913

关键词 applications;  composites;  flame retardance; 

摘要 Piperazinyl phenyl phosphate (PPOP) and 4,4-diaminodiphenylmethyl phenyl phosphate (DPOA) containing phosphorus and nitrogen elements as flame retardants applied for epoxy resin (EP) were successfully synthesized, and substantiated by Fourier transform infrared spectra (FTIR), H-1 and P-31 nuclear magnetic resonance (NMR) and elemental analysis (EA). The limiting oxygen index (LOI) of the EP composites with 3 wt% of PPOP and DPOA attained 33.6% and 34.2%, both acquired the UL-94 V-0 rating, respectively. The peak of heat release rate (pHRR), the total heat release (THR) and the total smoke production (TSP) of EP/PPOP-1 decreased by 21.0%, 25.6%, and 18.7%, respectively. For EP/DPOA-1, the pHRR, THR, and TSP were brought down by 23.5%, 21.8%, and 26.4%, respectively. Flame-retardant mechanisms were explicitly evaluated by the scanning electron microscope (SEM), Raman spectroscopy and thermogravimetric analysis-infrared spectrometry (TG-IR). This proposed method not only could produce efficient flame retardant for EP but provide new ideas for replacing existing halogenated flame retardants.

服务人员 尚玮姣

服务院士 宋湛谦

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