应用化学2025，Vol.42Issue(2)：212-221,10.DOI:10.19894/j.issn.1000-0518.240324
氮磷阻燃剂的合成及其在环氧树脂中的阻燃应用
Synthesis of Nitrogen-Phosphous Flame Retardants and Their Flame Retardant Applications in Epoxy Resins
摘要
Abstract
In this study,a novel multielemental synergistic flame retardant(DAI)was successfully synthesized in two steps using 9,10-dihydro-9-oxa-10-phospha-phenanthrene-10-oxide(DOPO),2-aminobenzothiazole(ABZ),and indole-3-carboxaldehyde(I3C),which was verified by Fourier transform infrared spectroscopy and nuclear magnetic resonance spectroscopy(NMR).Epoxy resin/DAI-3(EP/DAI-3),EP/DAI-5 and EP/DAI-7 were prepared by blending them with epoxy resin using the thermosetting method,and the flame retardant properties and residual carbon properties after combustion of the prepared EP composites were investigated.The results showed that the prepared EP composites had excellent smoke suppression and flame retardant properties,especially the 7%DAI-added EP,which showed significant reductions of 34.5%,32.3%and 42.2%in pHRR,pCOPR and pCO2 PR,respectively.Compared with pure EP,EP/DAI-7 achieved a LOI value of 32.6%and a V-0 rating in UL-94 test.The residual carbon analysis shows that the prepared EP/DAI-7 has a denser and stronger residual carbon than pure EP,with an ID/IG value of 2.03,which had the highest degree of graphitization.关键词
环氧树脂/9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物/2-氨基苯并噻唑/吲哚-3-甲醛/多元素协同阻燃Key words
Epoxy resin/9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide/2-Aminobenzothiazole/Indole-3-carboxaldehyde/Multi-element synergistic flame retardant分类
化学引用本文复制引用
张傲天,史俊杰,陈前火,李红周..氮磷阻燃剂的合成及其在环氧树脂中的阻燃应用[J].应用化学,2025,42(2):212-221,10.基金项目
国家自然科学基金(No.22478073)和福建省自然科学基金(No.2021J01198)资助 Supported by the National Natural Science Foundation of China(No.22478073)and the Natural Science Foundation of Fujian Province(No.2021J01198) （No.22478073）
