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时间:2020-04-12
《《苯并噁嗪层压板的制备及其阻燃改性》.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第29卷第2期高校化学工程学报NO.2Vb1.292015年4月JournalofChemicalEngineeringofChineseUniversitiesApr.2015文章编号:1003-9015(2015)02—0366。06网络出版地址:http://www.cnki.net/kcms/detail/33.1141.TQ.20141226.1650.003.html苎麻/苯并嗯嗪层压板的制备及其阻燃改性闰红强,王华清,程捷,方征平(1.浙江大学宁波理工学院高分子材料与工程研究所,浙江宁波315100;2.浙江纺织服装职业技术学院,浙江宁波315211)摘要
2、:采用聚磷酸铵(AVe)和磷氮类阻燃剂(NEWRAY911)对苎麻/苯并嚼嗪树脂层压板进行阻燃改性,并通过万能材料试验机、极限氧指数(LOI)、垂直燃烧实验、热失重仪(TG1和微型燃烧量热仪(MCC)对层压板性能进行分析。实验结果表明:经过APP改性后的层压板LOI有明显的增加,但只有当APP添加量达到7%时层压板的垂直燃烧才能通过V0级,且APP过多的添加也使层压板的力学性能有较大的损伤采用NEWRAY9l1阻燃改性苎麻织物不仅可以使层压板的阻燃性能得到改善,同时也减少APP的添加量,使苎麻/苯并嗯嗪树脂层压板在阻燃改性的同时保持了良好的力学性能。经APP和NEWRA
3、Y91l改性后的层压板明显减缓了分解速率、燃烧热释放量及释放速率,提高了热分解的残炭量。关键词:苎麻:苯并嗯嗪树脂;层压板;阻燃;热分解:微型燃烧量热仪中图分类号:TB3251.1文献标识码:ADOI:10.3969~.issn.1003—9015.2014.12.26.03PreparationofRamie/BenzoxazineLaminateanditsModificationforFlameRetardingYANHong.qiang,WANGHua.qing,CHENGJie,FANGZheng.ping(1.InstituteofPolymerMateri
4、alandEngineering,NingboInstituteofTechnology,ZhejiangUniversity,Ningbo315100,China;2.ZhejiangTextile&FashionTechnologyCollege,Ningbo315211,China)Abstract:Ramie/benzoxazineresinlaminatesweremodifiedbyammoniumpolyphosphate(APP)andnitrogen—phosphorousflameretardants(NEWRAY91l1.Theirproperti
5、eswereanalyzedbyuniversaltestingmachine,limitingoxygenindextestinginstrument,thermogravimetricanalysis,andmicroscalecombustioncalorimeter.Itwasshownthatthelimitingoxygenindex(LOI)oflaminatesincreasesobviouslybytheadditionofAPP’however.theLOIdoesnotreachV0leveluntiltheadditionOfAPPreaches
6、7%.ThemechanicalpropertiesoflaminatesbecomesworsewhenasuperfluousamountofAPPiSadded.UsingflameretardantfinishingoframiefabricwithNEWRAY911.theflameretardantpropertiesoflaminatescanbeamelioratedwith1essadditionOfAPPandthedesirablemechanica1propertyofthelaminatesiskept.Forthelaminatescoord
7、inatelymodifiedbyAPPandNEWRAY911,thedegradationrate,totalheatrelease,andheatreleaseratearesloweddownandthecharresidueofthermaldecompositionisheightenedsubstantially.Kevwords:ramie;benzoxazineresin;laminate;flameretardant;thermaldecomposition;microscalecombustioncalorimete
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