聚氨酯固化剂合成工艺的研究

,,,(,510640):TDITDI-TMP(TDI)(TMP):TDITMP51,50,5h,,TDI,TDINCO:TDI;TDI-TMP;;:TQ63014:A:0253-4312(2008)12-0020-03StudyonSynthesisTechnologyofPolyurethaneCuringAgentZhangYanhong,HuangHong,XiaZhengbin,ChenHuanqin(SchoolofChemistryandChemicalEngineering,SouthChinaUniversityofTechnology,Guangzhou510640,China)Abstract:ThepaperhasdescribedthesynthesistechnologyofTDI-TMPpolyurethanecuringagentwhichissuitablefordistillingfreeTDIfromthePUcuringagentwiththinfilmevaporator.ItisfocusedondiscussionofthefactorsinfluencingtheTDI-TMPadductionreaction,suchasTDI/TMPratio,tempera2ture,chargingmethodsandsolvents.TheresultsshowthatwhenthemassratioofTDI/TMPis51,tempera2tureis50for5h,theprepolymerhaslowMn,lowerviscosity,andissuitableforseparationofresidualTDIinthinfilmevaporator.ThequalityofTDI-TMPadductsuchasfreeTDIcontentandNCOvalue,issatisfiedtothespecification.KeyWords:freeTDI;TDI-TMPprepolymer;polyurethane;curingagent:(1969),,,0,,,(TMP)(TDI),NCO,TDI,TDI,TDI-TMP2,TDITDI-TMP,,,TDI,1111(TDI-80/20):,;(TMP):,;:,112,TDI,,60TMPTDI,1h,4h,50TDINCO113NCO-;TDI;GB/T17251979(1989);GB/T17231993023812Vol.38No.12200812PAINT&COATINGSINDUSTRYDec.2008©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.()/%w(NCO)/%TMP8253101415TMP40501817151,,,TDI,NCO,NCO,TMP,212,TDI,TDI,TDITMP,TDITMP31,31891[1-5]TDI,,,TDITMP,22Table2Effectofmaterialproportiononpropertyprepolymerm(TDI)m(TMP)/s/minw(TDI)/%w(NCO)/%4104517104516141741243101109171511414421511711111514416401112412151511418391613013171618510371513515131611512321413716141712TDI,TDINCO,TDINCO,,TDI,2,TDI,,TDI,,,,,TDI,,TDITMP51213TDI-TMP,,,,,,,,,TDI2NCO,,,,,,33Table3Effectoftemperatureonpropertyprepolymer/w()/%w(NCO)/%/s/(gcm-3)504910216151181911104260491401614232141111057049151161343817111174804916016128431211120490491811612047151112563,,NCOTMP40,40[2-4,6],,,,,,,,,TDI,,,50,1h,4h,TDI,214,,3,1,TMPTDI,,,,,2TMP,TMPTDI-3TMP60(TMP),TMPTDI-12,:©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(TDI)/%w(NCO)/%1251211616101618223151081612161331911130151216153,TDITMP,4NCO,,,,,TDI3215,[1],,,[1-3],,,,,,3TDITDI-TMP:,;TDI,,TMP,,:50,TMPTDI-,1h,4h,TDITMP51TDI,113:w(TDI)014%,w()75%,w(NCO)1310%[1],,,.TDI-TMP[J].,2000,15(2):25-28.[2],,,.TDI-TMP[J].,1998,28(11):3-5.[3],,,.TDI-TMP[J].,2000(2):28-29.[4].TDI[J].,1998,28(8):5-6.[5],.TDI[J].,2005,20(7):17-19.[6],,.[J].,2007,37(4):28-31.2008-05-27()(19)[6]INWC,NOMURAM,JUNGHK.Synthesisandaqueoussolutionbehaviorofwater-solublepolyurethane(IPDI-PPG-DMPA)res2in[J].MacromolChemPhys,2000(201):2221-2227.[7]PANHX,CHENDJ.Preparationandcharacterizationofwaterbornepolyurethane/attapulgitenano-composites[J].EuropeanPolymerJournal,2007(43):3766-3772.[8],.[J].,1999,22(3):68-72.[9]LEESY,LEEJS,KMBK.Preparationandpropertiesofwater2bornepolyurethane[J].PolymerInternational,1997,42(1):67-76.2008-08-20()2008111014,(),(),,,,,,(PCI),,,,12022,:©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.