聚氨酯弹性体耐热性能研究进展

471000、、IPN．TQ334．1A1009－4970201111－0028－04PU、、、、、．PU．80℃120℃1．．PU．11．1、、、100～120℃115～125℃140～160℃160～200℃2．．．．1．2．、＞＞＞．αH．PTMEG＞PEG＞PPG．222．1．PUPUPUPU．3PUIPEPA－PUI＞PEG－PUI＞PPO－PUI．4PU＞14－＞2011－06－152009BAE77B021985－．2011113011JournalofLuoyangNormalUniversityNov．2011Vol．30No．11＞．PC-DL、、、．5PPDI/PCD．．－Si－O－Si－．6TPU．2．2．．PPDINDI、MDITDI．4NDI＞PPDI＞TODI＞MDI．CN101314633A715－TPU0℃130℃E’1．5MDITPUE’5．8NDITPU．8PPDIPPDIPUEPUEMDIPUEPPDIPUE．US65211649PCLPPDITPUTPUUS506676210PPDITPU、、．2．3．．．．HQEEBDO120℃、MOCA11．Ethacure300SCH324－MOCAE2300MOCA12．13TDI、MOCA/BMIPUEBMI－MOCA、．2．4、IS、OX、PI、PSF－C、、PU14．1．150℃．15400℃．16IS40℃．IS130℃85%95%．2．17PU．Mi-·92·201111shra18/．19PU．PU．Masiulanis20PUPU、．TsutomuTakeichi21CF250～300℃．3300℃150℃PU．22PU300℃．423PUPU10%5～10℃．24PU．25PU．PU．2．5PU1．MMT、RECPU．PU/MMTTGAMMT．．PU/REC15℃10%330℃．Dwan’Isa．SiO2150～300℃2．1%．SiO2．－SiO2PU．TiO2PU/TiO2PU44℃．PU/CaCO3TGCaCO314℃．CaSO4PUPU20%7℃26．2HTPBMDIHT-PB280℃l5%．PPG－1000MDIPANI/PU－epoxy350℃2%．//85/15．2．6PUIPN“”“”．．PU．－．、IPN、．SriramA－B．·03·201111300℃14．PDMSDMPAPU/EP．PU/EP、26．2．7．、．27、、PCL．3PUPU．1、23．、．1．K．200159－83．2．J．19999341－47．3．－J．2002252221－226．4．J．2008313187－190．5．C．2010241－244．6．J．200313314－17．7H·J·M·H·G·．15－－CN101314633AP．2008－12－03．8．PPDIJ．200520517－20．9ThomasLPlummerValCComesGeorgeR．Wallace．In-jecetion－moldablethermoplasticpolyuranthaneelastomerUnatedStatesPatentUS6521164P．2003－02－18．10YukioOhbuchiYoshiakiMaedaMasahiroKawasakietal．Thermoplasticpolyurethaneresinfromp－phenylenediisocyanateapolyhexamethylenecarbonatepolyolandashortchainpolyolUnatedStatesPatentUS5066762P．1991－11－19．11LeeHKKoSW．StructureandthermalpropertiesofpolyetherpolyurethaneureaelastomersJ．JApplPolymSci19935071269－1273．12．J．1996193188－189．13．J．200224240－42．14．J．200817549－53．15．J．2001246347－349．16．J．1997205274－276．17．、J．199917426－29．18MishraAKChattopadhyayDKSreedharBetal．JApplPolymSci20061023158－3167．19．J．20064071253－1256．20MasiulanisBZieinskiR．Mechanicalthermalandelec-tricpropertiesofpolyurethaneimideelastomersJ．Jour-nalofAppliedPolymerScience20033072731－2741．21TsutomuTakeich．Preparationofhigh－temperaturepoly-urethanebyalloyingwithreactivepolyamideJ．JournalofPolymerScience2002403497－3503．22．J．20021729－12．41·13·201111110－phenanthrolineattracelevelbythermallensingJ．Talanta2002575831－839．9LahiriSCAdityaS．Thethermodynamicofformationofsomedisustituted－o－phenanthrolinederivativesandtheirironcomplexesinsolutionJ．JInorgNuclChem1968302487－2492．AcidityRangeofSimultaneousDeterminationwithMixedChromogenicReagentsLIKe-qunDepartmentofChemistryTongjiUniversityShanghai200092ChinaAbstractSimpleequationsforcalculatingacidityrangeofsimultaneousdeterminationwithmixedchromogen-icreagentsarepresentedinthispapermq－nplgR＞mlgβNLn－nlgβMLm+nlgβMRp－mlgβNRq+2m+nmq－nplgL＞plgβNLn－qlgβMLm+qlgβMRp－plgβNRq+2p+q．lgR＞2－lgKNRqlgL＞2－lgKMLmwhereMandNaremetalionstobemeasuredRandLarechromogenicreagents．CMandCNareanalyticalconcentrationsofmetalionsMandNrespectively．βandKareaccumulativestabilityconstantsorstabilitycon-stantsofcoordinationcompoundsrespectively．Theformertwoequationscanbedividedintothreecategoriesac-cordingtotherelativevaluesofcoefficientsofmqandnp．Keywordschromogenicreagentsimultaneousdeterminationacidity3123．J．200417192－96．24．M．200643－47．25．J．200723317－19．26．J．2007945－49．27．J．200823424－27．StudyontheThermalDegradationandStabilityofPolyurethaneElastomerSULi-liSHIYa-linZHANGZhen-jiangWEIYong-jiZHAOYanLimingResearchInstituteofChemicalIndustryLuoyang471000ChinaAbstractInthispaperthethermal-degradationmechanismandmethodstoimprovethepropertyofthermal-degradationresistancewerebrieflyintroduced．Heat-resistantrawmaterialstheorganicheterozygouscyclesthemixtureofinorganicororganicmaterialswithpolyurethaneandtheinterpenetratingpolymernetworkscanreinforcetheheat-resistanceofpolyurethane．Keywordspolyurethaneelastomerheat-resistance·14·201111