高等学校化学学报2024，Vol.45Issue(4)：45-53,9.DOI:10.7503/cjcu20230494
呋喃基磷杂菲阻燃剂的合成及在阻燃环氧树脂中的应用
Synthesis of Furan-based Phosphaphenanthrene Flame Retardant and Its Application in Anti-flammable Epoxy Thermosets
摘要
Abstract
A novel bio-based flame retardant(Furan-2DOPO)was synthesized from 5-hydroxymethylfurfural,furfuramine,phosphorus oxychloride and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide(DOPO).Its struc-ture was characterized by Fourier transform infrared spectroscopy,proton-and phosphorus-nuclear magnetic resonance spectroscopy.A series of cured flame retarded epoxy products was obtained by modification of epoxy resin with Furan-2DOPO.The effects of the loading of Furan-2DOPO on the mechanical properties,thermal stability and flame retardant properties of the cured epoxy products were investigated.The results showed that when the addition amount of Furan-2DOPO was only 5%(mass fraction,phosphorus mass fraction was 0.47%),the oxygen index of the cured epoxy product reached 31.0%,and can pass the UL-94 V-0 test;compared with the unmodified epoxy resin,the peak heat release rate of the cured epoxy products containing 2.5%(mass fraction)and 5%(mass fraction)Furan-2DOPO was decreased by 31%and 35%,respectively.In addition,the tensile strength of the cured epoxy products containing 2.5%and 5%Furan-2DOPO was about 28%higher than that of the unmodified epoxy resin,respectively.The results of char analysis indicated that Furan-2DOPO possessed excellent catalytic charring performance,which was conducive to reducing the escape of combustible gases during combustion,so as to improve the flame retardant performance.关键词
环氧树脂/呋喃基磷杂菲/阻燃剂/热降解Key words
Epoxy resin/Furan-based phosphaphenanthrene/Flame retardant/Thermal decomposition分类
化学化工引用本文复制引用
唐刚,陶熠,邓丹,张冬欣,张诗华,刘秀玉,伍强,沈海峰,孙俊杰..呋喃基磷杂菲阻燃剂的合成及在阻燃环氧树脂中的应用[J].高等学校化学学报,2024,45(4):45-53,9.基金项目
国家自然科学基金(批准号:51403004)、安徽省自然科学基金(批准号:2108085ME178,2008085ME176)和安徽省科技重大专项(批准号:202203a06020003)资助. Supported by the National Natural Science Foundation of China(No.51403004),the Natural Science Fund of Anhui Province,China(Nos.2108085ME178,2008085ME176)and the Major Project of Science and Technology in Anhui Province of China(No.202203a06020003). （批准号:51403004）
