以9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物(DOPO)与三聚氰胺(MEL)为原料制备了一种含磷、氮以及苯环的新型阻燃剂(DOPO-MEL)。通过X射线衍射仪、傅立叶红外光谱仪与电喷雾阳离子质谱分析验证了其结构,并将其与聚磷酸铵(APP)复配阻燃聚丙烯(PP)。结果表明:DOPO-MEL与APP具有良好的协同阻燃效应。将30%(质量分数,其中DOPO-MEL∶APP=1∶2)的膨胀型阻燃体系添加于PP时,复合材料的极限氧指数(LOI)为29.4%,且能够通过UL-94测试V0级别。
A novel flame retardant,containing phosphorous,nitrogen and benzene rings,was prepared with 9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO) and melamine (MEL).The X-ray diffraction (XRD),Fourier transform infrared(FT-IR) spectra and the electrospray ionization mass spectrometry (ESI-MS) were introduced to analyze the chemical structure of DOPO-MEL.An intumescent flame-retardant system (IFRs) composed of DOPO-MEL and ammonium polyphosphate (APP) was applied to polypropylene (PP).Results revealed that DOPO-MEL and APP had an excellent synergistic effect.Loaded with 30wt% of IFRs (DOPO-MEL∶APP=1∶2),PP/IFRs composite showed promising flame retardancy,UL-94 test passed V0 rating and LOI value was up to 29.4%.
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基金资助
国家青年科学基金(21306124);山西省自然科学基金(2015011035)
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