影响聚醚型聚氨酯弹性体合成的因素

研究#开发,2010-10-25,20(5):28~31CHINAELASTOMERICS:2010-09-01:(1980-),,,,*(2007R201)*谢富春,郭福全(,471023):以聚乙二醇醚二醇(PEG)二苯基甲烷二异氰酸酯(MDI)和1,4-丁二醇(BDO)为原料合成了聚醚型聚氨酯弹性体;考察了催化剂的作用,确定了反应条件:预聚反应温度为80?5e,反应时间为1.5~2h;聚醚多元醇的含水量控制在0.03%(质量分数)以下;在130e下熟化时间为4h并对产品进行了IRDSC分析:聚醚;聚氨酯;弹性体;合成:TQ334.1:A:1005-3174(2010)05-0028-04,,;/0/0,,,[1];,,,,11.1(PEG-1000)::;1,4-(BDO):,;4,4-(MDI):,;(DMF):,;(DBTDL):;:1.2,[2]500mL,,110~120e,133.3Pa,1.5h,50e,,,(80?5)e,2h,50e,,,90e,,110e4h,1.3#,GB12008.6)89;NCO,HG/T2409)921.4:GB531)1999,LX-A:GB/T2794)1995,NXS-11A:GB4507)1999,SYP-4202-I:GB/T12824)2002,GB/T528)1998,GB/T529)1999,GB528)82:25e,55%,100mm/min,LJ-5000N:Perkln-ElmerPerkin-ElmerParagon500FTIR:TADSC2010,10mg,N2,10e/min,-100~300e22.1,,,[3],DBTDL,,11w()/%/s/e-600100DBTDL0.027080DBTDL0.04680.02160850.04120801:,,;DBTDL,,,2.2MDI/PEG-1000(3B1),()NCO)9.6%1,80e1.5h)NCO,)NCO:MDI,:,70e,,,,,)NCO,2.5h;90e,,)NCO,)NHCOO))NCO,)NCO,80e(80?5)e,1.5~2h/min12.3,MDI/PEG-1000(3B1),2/min22,,,0~1h;)NCOPEG-1000)NCO,PEG-1000;)NCO,2.4,2[4]:(1))NCO(3);(2))NCO,w()/%3#29#5,.;,,,,,44,CO2,MDI,,18g1molMDI,22.4LCO2[5],,0.05%0.08%,110e1.5h0.03%,2.5,,,,,,:,,,,;,,5,130e,/e5,;,,,,,2/h3.03.54.04.55.0A4347576065/%550595650620605/MPa18.119.425.328.530.3/(kN#m-1)44495560622,130e,4h,,,,;,,1,,,2.6(FTIR)66,3302cm-1)OH;3211cm-1N)H;3036cm-1C)H,C)H,;2871cm-1)CH2C)H;1721cm-1CO;1597cm-1C)C;1535cm-1N)H;1413cm-1#30#20C)H;1310cm-11223cm-1OCOC)O;1108cm-1:C)O)CNCO2260cm-1,5,,R/cm-162.77t/e7,TgTm7-42.04e,25e;,,,30e;195.13e3,:(80?5)e,1.5~2h;0.03%;130e4h,,:[1].[J].,2009,7(1):13~16.[2],,.[J].,2009,26(9):900~903.[3].[M].:,2005.349~351.[4],.[J].,2005,20(1):17~20.[5],,.PU/Mg(OH)2[J].,2006,34(10):26~28.Influentialfactorsofpreparingpolyether-polyoltypepolyurethaneelastomerXIEFu-chun,GUOFu-quan(DepartmentofMaterialsScience&Engineering,LuoyangInstituteofScienceandTechnolo-gy,Luoyang471023,China)Abstract:Thepolyurethaneelastomersbasedonpolyether-polygol(PEG),4,4-diphenylmethanediisocyanate(MDI)and1,4-dihydroxybutane(BDO)weresynthesized.Thetypesofcatalystwereex-plored;thetemperatureofprepolymerwas(80?5)eandthetimeofprepolymerwas1.5~2h;mois-turepercentinpolymerizationwascontrolledunder0.03%;thetimeofpostcurewas4hwiththetemperature130e;theproductswerecharacterizedbyFTIRandDSC.Keywords:polyether-polyol;polyurethane;elastomer;synthesis#31#5,.