高铁减震用聚氨酯微孔弹性体垫块的制备及其性能研究_叶世荣

··523121、、、、。A0.15%PTMG-1000/PTMG-2000/330N2∶2∶1BDO/MOCA3∶11.0633%《》。TQ323.8A1005－1902201505－0038－05、、1。。。。2。《》。11.1MDI、MDIL-MDI330NMn=3000PT-MGMn=10002000、14-BDO3050、3600Mn=3000600033'--44'-MOCA35-E-100DC3402。1.2WDW0.5-CLX-APU-30F787。1.3、、、、A·83·POLYUＲETHANEINDUSTＲY20153052015．Vol．30No．5MOCAMOCA120℃MOCAMDIL-MDIB。A、BA、BA、B40～45℃0．5h8000r/minA、B50℃15min。100℃12h7d。1.4GB/T10654—20011055。GB/T531—1999。GB/T3512—2001100±2℃、96h。22.1CO23－4。1APTMG-1000MDIBDO/MOCA3∶1Ｒ1.06。1。。1《》A65±50.79g/cm3。A0.15%。2.25－7。A0.15%3050、330N、3600PTMG1∶4Ｒ1.061。1/MPa/%/g·cm－3PTMG-1000/30506.35.71611360.795PTMG-2000/30505.551791470.783PTMG-1000/PTMG-2000/30505.75.31721390.790PTMG-1000/330N5.64.71871590.785PTMG-2000/330N54.32251960.792PTMG-1000/PTMG-2000/330N5.24.52091880.788PTMG-1000/36004.64.12301910.796PTMG-2000/36003.93.32552380.788PTMG-1000/PTMG-2000/36004.13.62472220.793PTMG-1000PTMG-20001∶1。1PTMG-1000。PTMG-1000·93·5·。、。。。1PTMG-1000/PTMG-2000/330N2∶2∶1《》。2.3。8。2PTMG-1000/PTMG-2000/330N2∶2∶133%Ｒ1.06。2/MPa/%/g·cm－3BDO3.93.22271990.796MOCA6.25.61491250.792E-1006.15.61551290.788BDO/MOCA5.24.52091880.790BDO/E-1005.34.41731560.793BDOMOCAE-1003∶1。2BDO、MOCA、E-1003BDO。E-100MOCAE-100MOCA。BDO。E-1002MOCAMOCA。BDO/MOCA。2.40.15%0.78～0.80g/cm3Ｒ1.02～1.10PT-MG-1000/PTMG-2000/330N2∶2∶1BDO/MOCA3∶13。3Ｒ/MPa/%A/g·cm－31.024.63.9260233650.7831.044.84.3227197650.7881.065.24.5209188660.7911.085.54.8188171670.7951.105.85.7165149680.793·04·303Ｒ。Ｒ。ＲNCO、、Ｒ。Ｒ1.06。2.5。。PTMG-1000/PT-MG-2000/330N2∶2∶1BDO/MO-CA3∶1A0.15%Ｒ1.064。4/%/MPa/%A/g·cm－3314.44.0241229610.785324.94.4232203630.788335.24.5209188660.788345.64.8197180680.792355.85.2173157710.7904。。33%。2.6PTMG-1000/PTMG-2000/330N2∶2∶1BDO/MOCA3∶1A0.15%33%Ｒ1.06。APTMG-1000PTMG-2000129g258g330N309.5gMOCA38.77gBDO39.21g1.16gB265g。《》5。31A。0.15%。25A65±565/g·cm－3—0.788/MPa≥4.05.2≥3.44.5/%≥200209≥170188/%≤102.723℃±2℃/kN·mm－122.5±2.522.9－40℃±2℃/%≤2010.630046#72h/%≤102.5/Ω≥1083.5×1012PTMG-1000/PTMG-2000/330N2∶2∶1。3BDO/MOCA3∶1。4。33%。·14·5·1．M．2．2012423－4242．WJ-8D．20123．J．20091961－44．J．20123365－85．NDIJ．200823124－266．NDIJ．2014421168－717．J．2005212283－2868．/MDIJ．20075327－322015－07－132015－09－20PreparationandPropertyofMicrocellularPolyurethaneElastomerDampingPadforHighSpeedＲailwayYeShirongYangXiaobingGuoXiaoxingDongguanPepsonIndustrialCo．LtdDongguanGuangdong523121ChinaAbstractThemicrocellularpolyurethaneelastomerdampingpadforhighspeedrailwaywascastedbylowpressurefoamingmachine．Theeffectsoffoamingagentcontentsoftsegmentsandchainextenderisocyanatein-dexhardsegmentcontentonthematerialhardnessdensityandmechanicalpropertieswereresearched．There-sultsshowedthatthematerialhardnessanddensityweredecreasedwhenwatercontentincreased．Whenwatermassfractionwas0.15%forpartAmolarratioinsoftsegmentPTMG-1000/PTMG-2000/330Nwas2∶2∶1molarratioinchainextenderBDO/MOCAwas3∶1isocyanateindexwas1.06hardsegmentcontentwas33%thematerialhadexcellentcomprehensiveperformance．ItmetthestandardoftheInterimTechnicalConditionforPassengerDed-icatedＲailwayLineFastenerSystemwhichwasissuedbyChinaAcademyofＲailwaySciences．Keywordspolyurethanemicrocellularelastomerhighspeedrailwaydampingpad1985櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒櫒。··Lubrizol、、、、、copolyamidescopolyesters。TPU、、、、、。LubrizolTPUHMAs、、。、EstaneGonzaloLowenbergTPU。LubrizolTPU。SlentiteSlentite。50～100nm。。。、NVHCellastoUltra-midA3WG10CＲ。CellastoUltramid25%。Ultrasim。·24·30