改性焦磷酸哌嗪及聚丙烯阻燃性能研究

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图分类号：TQ325 文献标识码：B 文章编号：1004-8901（2025）02-0018-05

Study on Flame Retardant Properties of Modified Piperazine Pyrophosphate and Polypropylene

SUNHua- σXU1 ，ZHUFang-ju²，YAOJun-long1 （1.SchoolofMaterial Scienceand Engineering，Wuhan InstituteofTechnology，Wuhan Hubei 4302O5，China； 2.Macheng ZhongleiNew BuildingMaterials Co.，Ltd.，MachengHubei 43830o，China）

Abstract：Piperazinepropospate（PAP）goestroughsurfacemodificationviaailanecouplngagentwithdeepeutecticsolventDES）as thereactionmedum.ModifiedandumodifiedPPAPsarecomprehensivelytestedandanalyzedthroughtermosgravimetricanalysis（TGA） andolubilitystsResultsotattearectfeodiedPAPisgfcantlymprodiheesilbone ingfrom 18.1% to 34.8% .Meanwhile，the solubility decreases from 1.22g/100mL to 0.83g/100mL ，indicating that the modified PPAP exhibitsacertaindegreeofydrophobicityRespectively，themodifiedndumodifiedPPAPsarefurthercompoundedithmelaminepoos phate（DMPY）and zinc oxide （ ΔZnO） ，and the thermal stability and flame resistance of the flame-retardant PP composites are analyzed via the limitingoxygenindex（LO）test，UL94vertialburingtest，thermosgravimetricaalysis（TG-DG），andechanicalpropertytst，etc The results indicate that the addition of modified PPAP increases the tensile strength of PP by 15.7% ，the notch impact strength by 72.9% ， and theLOI from 32.7 to 34.5，and significantly enhances the thermal stability.

Keywords：piperazine pyrophosphate；silane coupling agent；deep eutectic solvent；polypropylene doi：10.3969/j.issn.1004-8901.2025.02.004

聚丙烯（PP）作为一种易燃材料，其氧指数仅为17%～18% ，这一特性极大地限制了其应用范围[1，2]。（剩余5832字）