RIRIM机在聚氨酯弹性体加工中的工艺探索

RIRIM(266042):DADMT,2(RIRIM)RIRIM:RIRIM;,;;1121;4.05.0MPa;AB0.4%0.6%;RIRIM2000r/min:;;(RIM);RIRIM;(PU),,,[1](),(),(),,PU60%,[2],2070(RIM)[3],,,,[4,5],RIRIM[6],2(RotaryIn2jectionReactionInjectionMoulding,RIRIM)[7]RIRIM,,RIRIM[8,9],1/3RIRIM,,RIRIM,11.1(PTMEG,Mn=1000),;(TDI),80/20,;3,5222,4/2,62(DADMT),,;(DBTDL),1.21.2.1RIRIMA,APTMEGDADMTDBTDLRIRIMB,1101201h,BABRIRIM,,,1.2.2(),1101201h,6575,TDI,(705)1.52h,,()(A),RIRIMA5320021742002.Vol.17No.4POLYURETHANEINDUSTRY,A()RIRIMB,BABRIRIM,,,1.3100L;QLB2D400400;101A22;NDJ279;XS2RIRIM;XLD2250;22.1,,[10]RIRIM,,3min,,,,,,,,,,,,,,,[11]311A757776/MPa273130/kNm-1798987/%550580570A5090,AB616,45,,11RIRIM11101,RIRIM,,,ANCO11%(PTMEGTDI10052);BPTMEGDADMTDBTDL,PTMEGDADMT8624AB1.3812.2,,,,,,,232A/455565707580/mPas26051585965505445390B/202530354045/mPas155010159607255604902,,,,,,(1000mPas),,A(652),B(302)3/456575A767575/MPa28.932.530.1/kNm-1828985/%530580575/min12108.563172.3,,AB,,44A/B6/13/11.5/11/11/31/4A767575757272/MPa29.530.132.532.028.026.5/kNm-1838589878075/%570570580585570555,,A,,,,A,,,B,,NCO,,NCO;BA,,11212.4,,,(),55/MPa1.252.503.755.006.257.50A737374757676/MPa29.830.031.5323232.5/kNm-1858587878687/%5755755805805805855:,,,,4.05.0MPa2.5,,,,,(),,,OHNCO,,(),66/%0.20.30.40.50.60.7A747474757575/MPa29.529.830.531.031.330.5/kNm-1848587888687/%560570570570575570/min12.011.510.510.09.58.5,AB0.4%0.6%2.6RIRIMRIRIM,,,77RIRIM/rmin-1800134018802680A74757475/MPa25.527.832.533.2/kNm-185868990/%5705755805807,,RIRIM2000r/min,3aRIRIM,b,A(652),B(302)c1121dRIRIM4.05.0MPae,734RIRIMAB0.4%0.6%fRIRIM2000r/min,1..:,2001.1892,..,1997,(1):353,..2.:,1994.5444,..,1997,18():2365..:98.1998.3216BriscoBJ,etal.RotaryInjectionTakesRIMtoNewFrontiers.PlasticsandRubberInternational,1988.13(5):207,,.RIRIMPU.,1999,14(2):168,..,1997,18():2319..,2000,21(4):4310,,..,2001,11(4):3911,,..,2001,16(1):92002-03-082002-10-29StudyonTechniqueofPUElastomersPreparedbyRIRIMMachineZhaoFeiXingZheng(QingdaoUniversityofScienceandTechnology,266042)Abstract:Polyurethaneelastomersbasedonpolytetramethyleneetherglycol(PTMEG),toluenediisocyanate(TDI)andchain2extenderDADMTwerepreparedbyrotaryinjectionreactioninjectionmoulding(RIRIM)machine.Theeffectsofsyntheticmethod,mixingtemperature,injectionpressure,amountofcatalyst,rotatingspeedofscrewoftheRIRIMonthemechanicalpropertiesofPUelastomerswerestudied.TheresultsshowthatRIRIMcanbeusedinone2stepmethod,two2stepmethod(prepolymermethod)andsemi2prepolymermethod.Thesemi2prepolymermethodisfitformiddlehard2nessproducts.TheoptimalmixingtemperaturesarethetemperaturesatwhichcomponentAandcomponentBhadapprox2imateviscosities.TheoptimalvolumeratioofcomponentAandBisbetween11and21.Theoptimalmouldingpres2sureis45MPa.Theuselevelofthecatalystisabout0.4%0.6%ofgrossamountofAandB.Andthegoodmix2ingeffectwillbegotwhentherotatingrateofthescrewisabout2000r/min.Keywords:polyurethane;elastomer;reactioninjectionmoulding(RIM);RIRIMmachine;rotaryinjection,34,,,,,DabcoNE;ToyocatRX20RX21,,RX20TDI/MDI,RX21MDI,RX30Dow,VoranolVoractiv,,,50%200275%RenosolVorac2tiv8317