Study on the Novel Phosphorus-containing Epoxy Resin: Synthesis,Curing Process and Flame-retardant Property，第六届亚欧研讨会上处理和性能增强聚合物会议文集（2013.6.2-6 武汉）-中国聚合物网,论文下载

Study on the Novel Phosphorus-containing Epoxy Resin: Synthesis,Curing Process and Flame-retardant Property

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关键词：

epo xy resin 2-methy-2 5-dio xo-l 2-oxaphospholane
flame retardancy self-curing

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112K

所属学科：

分子表征

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第六届亚欧研讨会上处理和性能增强聚合物会议文集（2013.6.2-6 武汉）

简介：

Asathermosettingresinwithgoodcomprehensiveperformance,epoxyresin(EP)iswidelyusedinelectronicindustries.However,theflameretardancyofgeneralEPcannotmeettheneedsforelectronicapplications.Traditionally,methodsofphysicallyblendingflame-retardantadditiveswithEPwerestudiedforobtainingflame-retardantEP.Themajordisadvantagewasthatallflame-retardingadditivesmightbelostinprocessing.Inrecentyears,relatedresearchmainlyfocusedonthephosphorus-containingreactiveflameretardants,throughwhichwecouldchemicallybondtheflameretardantwithphosphorusatomtopolymerchain.Thepermanentattachmentofphosphorusatomstopolymerleadtohighefficiencyinflameretardancycl].Inthisstudy,areagent2-methy-2,5-dioxo-l,2-oxaphospholane(OP)wereintroducedintoEPsystemasareactiveflameretardant.ThebestcuringtemperaturesofEPsystemsandglasstransitiontemperatures(Tg)ofcuredEPwerealldeterminedbyDSC(TAQ20).Thelimitoxygenindexes(LOI)weredeterminedaccordingtoGB/T2406-1993andverticalcombustiontestingswereconductedaccordingtoGB/T2408-1996.Inourresearch,OPplayedagoodflameretardanteffectontheEP/DDMsystem.TheLOIreached24.2%andUL-94gradereachedV-OlevelwiththemolarratioI:Iofepoxyandacidanhydridegroupsc2].ThroughthereactioninasystemofOP/m-dihydroxybenzene(orp-dihydroxybenzene)/EP,apre-polymerwasobtained.Thephosphorus-containingEPpre-polymerhadtheabilityofself-curing.ThecuredEPhadgoodflameretardantproperties.TheLOIofcuredEPwere25.0%and25.7%forOP/m-dihydroxybenzene/EPandOP/p-dihydroxybenzene/EPsystem,respectively.TheverticalcombustiontestbothreachUL-94V-olevelc3]

作者：

S. J. Cai , X. Q. Liu , J. Y. Liu

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2013-07-03 14:36:00

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